projects / babeltrace.git / blame
| Commit | Line | Data |
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| 24a3136a DS |
1 | #!/usr/bin/env python |
| 2 | # -*- coding: utf-8 -*- | |
| 3 | ||
| 4 | # CairoPlot.py | |
| 5 | # | |
| 6 | # Copyright (c) 2008 Rodrigo Moreira Araújo | |
| 7 | # | |
| 8 | # Author: Rodrigo Moreiro Araujo <alf.rodrigo@gmail.com> | |
| 9 | # | |
| 10 | # This program is free software; you can redistribute it and/or | |
| 11 | # modify it under the terms of the GNU Lesser General Public License | |
| 12 | # as published by the Free Software Foundation; either version 2 of | |
| 13 | # the License, or (at your option) any later version. | |
| 14 | # | |
| 15 | # This program is distributed in the hope that it will be useful, | |
| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 | # GNU General Public License for more details. | |
| 19 | # | |
| 20 | # You should have received a copy of the GNU Lesser General Public | |
| 21 | # License along with this program; if not, write to the Free Software | |
| 22 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
| 23 | # USA | |
| 24 | ||
| 25 | #Contributor: João S. O. Bueno | |
| 26 | ||
| 27 | #TODO: review BarPlot Code | |
| 28 | #TODO: x_label colision problem on Horizontal Bar Plot | |
| 29 | #TODO: y_label's eat too much space on HBP | |
| 30 | ||
| 31 | ||
| 32 | __version__ = 1.2 | |
| 33 | ||
| 34 | import cairo | |
| 35 | import math | |
| 36 | import random | |
| 37 | from series import Series, Group, Data | |
| 38 | ||
| 39 | HORZ = 0 | |
| 40 | VERT = 1 | |
| 41 | NORM = 2 | |
| 42 | ||
| 43 | COLORS = {"red" : (1.0,0.0,0.0,1.0), "lime" : (0.0,1.0,0.0,1.0), "blue" : (0.0,0.0,1.0,1.0), | |
| 44 | "maroon" : (0.5,0.0,0.0,1.0), "green" : (0.0,0.5,0.0,1.0), "navy" : (0.0,0.0,0.5,1.0), | |
| 45 | "yellow" : (1.0,1.0,0.0,1.0), "magenta" : (1.0,0.0,1.0,1.0), "cyan" : (0.0,1.0,1.0,1.0), | |
| 46 | "orange" : (1.0,0.5,0.0,1.0), "white" : (1.0,1.0,1.0,1.0), "black" : (0.0,0.0,0.0,1.0), | |
| 47 | "gray" : (0.5,0.5,0.5,1.0), "light_gray" : (0.9,0.9,0.9,1.0), | |
| 48 | "transparent" : (0.0,0.0,0.0,0.0)} | |
| 49 | ||
| 50 | THEMES = {"black_red" : [(0.0,0.0,0.0,1.0), (1.0,0.0,0.0,1.0)], | |
| 51 | "red_green_blue" : [(1.0,0.0,0.0,1.0), (0.0,1.0,0.0,1.0), (0.0,0.0,1.0,1.0)], | |
| 52 | "red_orange_yellow" : [(1.0,0.2,0.0,1.0), (1.0,0.7,0.0,1.0), (1.0,1.0,0.0,1.0)], | |
| 53 | "yellow_orange_red" : [(1.0,1.0,0.0,1.0), (1.0,0.7,0.0,1.0), (1.0,0.2,0.0,1.0)], | |
| 54 | "rainbow" : [(1.0,0.0,0.0,1.0), (1.0,0.5,0.0,1.0), (1.0,1.0,0.0,1.0), (0.0,1.0,0.0,1.0), (0.0,0.0,1.0,1.0), (0.3, 0.0, 0.5,1.0), (0.5, 0.0, 1.0, 1.0)]} | |
| 55 | ||
| 56 | def colors_from_theme( theme, series_length, mode = 'solid' ): | |
| 57 | colors = [] | |
| 58 | if theme not in THEMES.keys() : | |
| 59 | raise Exception, "Theme not defined" | |
| 60 | color_steps = THEMES[theme] | |
| 61 | n_colors = len(color_steps) | |
| 62 | if series_length <= n_colors: | |
| 63 | colors = [color + tuple([mode]) for color in color_steps[0:n_colors]] | |
| 64 | else: | |
| 65 | iterations = [(series_length - n_colors)/(n_colors - 1) for i in color_steps[:-1]] | |
| 66 | over_iterations = (series_length - n_colors) % (n_colors - 1) | |
| 67 | for i in range(n_colors - 1): | |
| 68 | if over_iterations <= 0: | |
| 69 | break | |
| 70 | iterations[i] += 1 | |
| 71 | over_iterations -= 1 | |
| 72 | for index,color in enumerate(color_steps[:-1]): | |
| 73 | colors.append(color + tuple([mode])) | |
| 74 | if iterations[index] == 0: | |
| 75 | continue | |
| 76 | next_color = color_steps[index+1] | |
| 77 | color_step = ((next_color[0] - color[0])/(iterations[index] + 1), | |
| 78 | (next_color[1] - color[1])/(iterations[index] + 1), | |
| 79 | (next_color[2] - color[2])/(iterations[index] + 1), | |
| 80 | (next_color[3] - color[3])/(iterations[index] + 1)) | |
| 81 | for i in range( iterations[index] ): | |
| 82 | colors.append((color[0] + color_step[0]*(i+1), | |
| 83 | color[1] + color_step[1]*(i+1), | |
| 84 | color[2] + color_step[2]*(i+1), | |
| 85 | color[3] + color_step[3]*(i+1), | |
| 86 | mode)) | |
| 87 | colors.append(color_steps[-1] + tuple([mode])) | |
| 88 | return colors | |
| 89 | ||
| 90 | ||
| 91 | def other_direction(direction): | |
| 92 | "explicit is better than implicit" | |
| 93 | if direction == HORZ: | |
| 94 | return VERT | |
| 95 | else: | |
| 96 | return HORZ | |
| 97 | ||
| 98 | #Class definition | |
| 99 | ||
| 100 | class Plot(object): | |
| 101 | def __init__(self, | |
| 102 | surface=None, | |
| 103 | data=None, | |
| 104 | width=640, | |
| 105 | height=480, | |
| 106 | background=None, | |
| 107 | border = 0, | |
| 108 | x_labels = None, | |
| 109 | y_labels = None, | |
| 110 | series_colors = None): | |
| 111 | random.seed(2) | |
| 112 | self.create_surface(surface, width, height) | |
| 113 | self.dimensions = {} | |
| 114 | self.dimensions[HORZ] = width | |
| 115 | self.dimensions[VERT] = height | |
| 116 | self.context = cairo.Context(self.surface) | |
| 117 | self.labels={} | |
| 118 | self.labels[HORZ] = x_labels | |
| 119 | self.labels[VERT] = y_labels | |
| 120 | self.load_series(data, x_labels, y_labels, series_colors) | |
| 121 | self.font_size = 10 | |
| 122 | self.set_background (background) | |
| 123 | self.border = border | |
| 124 | self.borders = {} | |
| 125 | self.line_color = (0.5, 0.5, 0.5) | |
| 126 | self.line_width = 0.5 | |
| 127 | self.label_color = (0.0, 0.0, 0.0) | |
| 128 | self.grid_color = (0.8, 0.8, 0.8) | |
| 129 | ||
| 130 | def create_surface(self, surface, width=None, height=None): | |
| 131 | self.filename = None | |
| 132 | if isinstance(surface, cairo.Surface): | |
| 133 | self.surface = surface | |
| 134 | return | |
| 135 | if not type(surface) in (str, unicode): | |
| 136 | raise TypeError("Surface should be either a Cairo surface or a filename, not %s" % surface) | |
| 137 | sufix = surface.rsplit(".")[-1].lower() | |
| 138 | self.filename = surface | |
| 139 | if sufix == "png": | |
| 140 | self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height) | |
| 141 | elif sufix == "ps": | |
| 142 | self.surface = cairo.PSSurface(surface, width, height) | |
| 143 | elif sufix == "pdf": | |
| 144 | self.surface = cairo.PSSurface(surface, width, height) | |
| 145 | else: | |
| 146 | if sufix != "svg": | |
| 147 | self.filename += ".svg" | |
| 148 | self.surface = cairo.SVGSurface(self.filename, width, height) | |
| 149 | ||
| 150 | def commit(self): | |
| 151 | try: | |
| 152 | self.context.show_page() | |
| 153 | if self.filename and self.filename.endswith(".png"): | |
| 154 | self.surface.write_to_png(self.filename) | |
| 155 | else: | |
| 156 | self.surface.finish() | |
| 157 | except cairo.Error: | |
| 158 | pass | |
| 159 | ||
| 160 | def load_series (self, data, x_labels=None, y_labels=None, series_colors=None): | |
| 161 | self.series_labels = [] | |
| 162 | self.series = None | |
| 163 | ||
| 164 | #The pretty way | |
| 165 | #if not isinstance(data, Series): | |
| 166 | # # Not an instance of Series | |
| 167 | # self.series = Series(data) | |
| 168 | #else: | |
| 169 | # self.series = data | |
| 170 | # | |
| 171 | #self.series_labels = self.series.get_names() | |
| 172 | ||
| 173 | #TODO: Remove on next version | |
| 174 | # The ugly way, keeping retrocompatibility... | |
| 175 | if callable(data) or type(data) is list and callable(data[0]): # Lambda or List of lambdas | |
| 176 | self.series = data | |
| 177 | self.series_labels = None | |
| 178 | elif isinstance(data, Series): # Instance of Series | |
| 179 | self.series = data | |
| 180 | self.series_labels = data.get_names() | |
| 181 | else: # Anything else | |
| 182 | self.series = Series(data) | |
| 183 | self.series_labels = self.series.get_names() | |
| 184 | ||
| 185 | #TODO: allow user passed series_widths | |
| 186 | self.series_widths = [1.0 for group in self.series] | |
| 187 | ||
| 188 | #TODO: Remove on next version | |
| 189 | self.process_colors( series_colors ) | |
| 190 | ||
| 191 | def process_colors( self, series_colors, length = None, mode = 'solid' ): | |
| 192 | #series_colors might be None, a theme, a string of colors names or a list of color tuples | |
| 193 | if length is None : | |
| 194 | length = len( self.series.to_list() ) | |
| 195 | ||
| 196 | #no colors passed | |
| 197 | if not series_colors: | |
| 198 | #Randomize colors | |
| 199 | self.series_colors = [ [random.random() for i in range(3)] + [1.0, mode] for series in range( length ) ] | |
| 200 | else: | |
| 201 | #Just theme pattern | |
| 202 | if not hasattr( series_colors, "__iter__" ): | |
| 203 | theme = series_colors | |
| 204 | self.series_colors = colors_from_theme( theme.lower(), length ) | |
| 205 | ||
| 206 | #Theme pattern and mode | |
| 207 | elif not hasattr(series_colors, '__delitem__') and not hasattr( series_colors[0], "__iter__" ): | |
| 208 | theme = series_colors[0] | |
| 209 | mode = series_colors[1] | |
| 210 | self.series_colors = colors_from_theme( theme.lower(), length, mode ) | |
| 211 | ||
| 212 | #List | |
| 213 | else: | |
| 214 | self.series_colors = series_colors | |
| 215 | for index, color in enumerate( self.series_colors ): | |
| 216 | #element is a color name | |
| 217 | if not hasattr(color, "__iter__"): | |
| 218 | self.series_colors[index] = COLORS[color.lower()] + tuple([mode]) | |
| 219 | #element is rgb tuple instead of rgba | |
| 220 | elif len( color ) == 3 : | |
| 221 | self.series_colors[index] += (1.0,mode) | |
| 222 | #element has 4 elements, might be rgba tuple or rgb tuple with mode | |
| 223 | elif len( color ) == 4 : | |
| 224 | #last element is mode | |
| 225 | if not hasattr(color[3], "__iter__"): | |
| 226 | self.series_colors[index] += tuple([color[3]]) | |
| 227 | self.series_colors[index][3] = 1.0 | |
| 228 | #last element is alpha | |
| 229 | else: | |
| 230 | self.series_colors[index] += tuple([mode]) | |
| 231 | ||
| 232 | def get_width(self): | |
| 233 | return self.surface.get_width() | |
| 234 | ||
| 235 | def get_height(self): | |
| 236 | return self.surface.get_height() | |
| 237 | ||
| 238 | def set_background(self, background): | |
| 239 | if background is None: | |
| 240 | self.background = (0.0,0.0,0.0,0.0) | |
| 241 | elif type(background) in (cairo.LinearGradient, tuple): | |
| 242 | self.background = background | |
| 243 | elif not hasattr(background,"__iter__"): | |
| 244 | colors = background.split(" ") | |
| 245 | if len(colors) == 1 and colors[0] in COLORS: | |
| 246 | self.background = COLORS[background] | |
| 247 | elif len(colors) > 1: | |
| 248 | self.background = cairo.LinearGradient(self.dimensions[HORZ] / 2, 0, self.dimensions[HORZ] / 2, self.dimensions[VERT]) | |
| 249 | for index,color in enumerate(colors): | |
| 250 | self.background.add_color_stop_rgba(float(index)/(len(colors)-1),*COLORS[color]) | |
| 251 | else: | |
| 252 | raise TypeError ("Background should be either cairo.LinearGradient or a 3/4-tuple, not %s" % type(background)) | |
| 253 | ||
| 254 | def render_background(self): | |
| 255 | if isinstance(self.background, cairo.LinearGradient): | |
| 256 | self.context.set_source(self.background) | |
| 257 | else: | |
| 258 | self.context.set_source_rgba(*self.background) | |
| 259 | self.context.rectangle(0,0, self.dimensions[HORZ], self.dimensions[VERT]) | |
| 260 | self.context.fill() | |
| 261 | ||
| 262 | def render_bounding_box(self): | |
| 263 | self.context.set_source_rgba(*self.line_color) | |
| 264 | self.context.set_line_width(self.line_width) | |
| 265 | self.context.rectangle(self.border, self.border, | |
| 266 | self.dimensions[HORZ] - 2 * self.border, | |
| 267 | self.dimensions[VERT] - 2 * self.border) | |
| 268 | self.context.stroke() | |
| 269 | ||
| 270 | def render(self): | |
| 271 | pass | |
| 272 | ||
| 273 | class ScatterPlot( Plot ): | |
| 274 | def __init__(self, | |
| 275 | surface=None, | |
| 276 | data=None, | |
| 277 | errorx=None, | |
| 278 | errory=None, | |
| 279 | width=640, | |
| 280 | height=480, | |
| 281 | background=None, | |
| 282 | border=0, | |
| 283 | axis = False, | |
| 284 | dash = False, | |
| 285 | discrete = False, | |
| 286 | dots = 0, | |
| 287 | grid = False, | |
| 288 | series_legend = False, | |
| 289 | x_labels = None, | |
| 290 | y_labels = None, | |
| 291 | x_bounds = None, | |
| 292 | y_bounds = None, | |
| 293 | z_bounds = None, | |
| 294 | x_title = None, | |
| 295 | y_title = None, | |
| 296 | series_colors = None, | |
| 297 | circle_colors = None ): | |
| 298 | ||
| 299 | self.bounds = {} | |
| 300 | self.bounds[HORZ] = x_bounds | |
| 301 | self.bounds[VERT] = y_bounds | |
| 302 | self.bounds[NORM] = z_bounds | |
| 303 | self.titles = {} | |
| 304 | self.titles[HORZ] = x_title | |
| 305 | self.titles[VERT] = y_title | |
| 306 | self.max_value = {} | |
| 307 | self.axis = axis | |
| 308 | self.discrete = discrete | |
| 309 | self.dots = dots | |
| 310 | self.grid = grid | |
| 311 | self.series_legend = series_legend | |
| 312 | self.variable_radius = False | |
| 313 | self.x_label_angle = math.pi / 2.5 | |
| 314 | self.circle_colors = circle_colors | |
| 315 | ||
| 316 | Plot.__init__(self, surface, data, width, height, background, border, x_labels, y_labels, series_colors) | |
| 317 | ||
| 318 | self.dash = None | |
| 319 | if dash: | |
| 320 | if hasattr(dash, "keys"): | |
| 321 | self.dash = [dash[key] for key in self.series_labels] | |
| 322 | elif max([hasattr(item,'__delitem__') for item in data]) : | |
| 323 | self.dash = dash | |
| 324 | else: | |
| 325 | self.dash = [dash] | |
| 326 | ||
| 327 | self.load_errors(errorx, errory) | |
| 328 | ||
| 329 | def convert_list_to_tuple(self, data): | |
| 330 | #Data must be converted from lists of coordinates to a single | |
| 331 | # list of tuples | |
| 332 | out_data = zip(*data) | |
| 333 | if len(data) == 3: | |
| 334 | self.variable_radius = True | |
| 335 | return out_data | |
| 336 | ||
| 337 | def load_series(self, data, x_labels = None, y_labels = None, series_colors=None): | |
| 338 | #TODO: In cairoplot 2.0 keep only the Series instances | |
| 339 | ||
| 340 | # Convert Data and Group to Series | |
| 341 | if isinstance(data, Data) or isinstance(data, Group): | |
| 342 | data = Series(data) | |
| 343 | ||
| 344 | # Series | |
| 345 | if isinstance(data, Series): | |
| 346 | for group in data: | |
| 347 | for item in group: | |
| 348 | if len(item) is 3: | |
| 349 | self.variable_radius = True | |
| 350 | ||
| 351 | #Dictionary with lists | |
| 352 | if hasattr(data, "keys") : | |
| 353 | if hasattr( data.values()[0][0], "__delitem__" ) : | |
| 354 | for key in data.keys() : | |
| 355 | data[key] = self.convert_list_to_tuple(data[key]) | |
| 356 | elif len(data.values()[0][0]) == 3: | |
| 357 | self.variable_radius = True | |
| 358 | #List | |
| 359 | elif hasattr(data[0], "__delitem__") : | |
| 360 | #List of lists | |
| 361 | if hasattr(data[0][0], "__delitem__") : | |
| 362 | for index,value in enumerate(data) : | |
| 363 | data[index] = self.convert_list_to_tuple(value) | |
| 364 | #List | |
| 365 | elif type(data[0][0]) != type((0,0)): | |
| 366 | data = self.convert_list_to_tuple(data) | |
| 367 | #Three dimensional data | |
| 368 | elif len(data[0][0]) == 3: | |
| 369 | self.variable_radius = True | |
| 370 | ||
| 371 | #List with three dimensional tuples | |
| 372 | elif len(data[0]) == 3: | |
| 373 | self.variable_radius = True | |
| 374 | Plot.load_series(self, data, x_labels, y_labels, series_colors) | |
| 375 | self.calc_boundaries() | |
| 376 | self.calc_labels() | |
| 377 | ||
| 378 | def load_errors(self, errorx, errory): | |
| 379 | self.errors = None | |
| 380 | if errorx == None and errory == None: | |
| 381 | return | |
| 382 | self.errors = {} | |
| 383 | self.errors[HORZ] = None | |
| 384 | self.errors[VERT] = None | |
| 385 | #asimetric errors | |
| 386 | if errorx and hasattr(errorx[0], "__delitem__"): | |
| 387 | self.errors[HORZ] = errorx | |
| 388 | #simetric errors | |
| 389 | elif errorx: | |
| 390 | self.errors[HORZ] = [errorx] | |
| 391 | #asimetric errors | |
| 392 | if errory and hasattr(errory[0], "__delitem__"): | |
| 393 | self.errors[VERT] = errory | |
| 394 | #simetric errors | |
| 395 | elif errory: | |
| 396 | self.errors[VERT] = [errory] | |
| 397 | ||
| 398 | def calc_labels(self): | |
| 399 | if not self.labels[HORZ]: | |
| 400 | amplitude = self.bounds[HORZ][1] - self.bounds[HORZ][0] | |
| 401 | if amplitude % 10: #if horizontal labels need floating points | |
| 402 | self.labels[HORZ] = ["%.2lf" % (float(self.bounds[HORZ][0] + (amplitude * i / 10.0))) for i in range(11) ] | |
| 403 | else: | |
| 404 | self.labels[HORZ] = ["%d" % (int(self.bounds[HORZ][0] + (amplitude * i / 10.0))) for i in range(11) ] | |
| 405 | if not self.labels[VERT]: | |
| 406 | amplitude = self.bounds[VERT][1] - self.bounds[VERT][0] | |
| 407 | if amplitude % 10: #if vertical labels need floating points | |
| 408 | self.labels[VERT] = ["%.2lf" % (float(self.bounds[VERT][0] + (amplitude * i / 10.0))) for i in range(11) ] | |
| 409 | else: | |
| 410 | self.labels[VERT] = ["%d" % (int(self.bounds[VERT][0] + (amplitude * i / 10.0))) for i in range(11) ] | |
| 411 | ||
| 412 | def calc_extents(self, direction): | |
| 413 | self.context.set_font_size(self.font_size * 0.8) | |
| 414 | self.max_value[direction] = max(self.context.text_extents(item)[2] for item in self.labels[direction]) | |
| 415 | self.borders[other_direction(direction)] = self.max_value[direction] + self.border + 20 | |
| 416 | ||
| 417 | def calc_boundaries(self): | |
| 418 | #HORZ = 0, VERT = 1, NORM = 2 | |
| 419 | min_data_value = [0,0,0] | |
| 420 | max_data_value = [0,0,0] | |
| 421 | ||
| 422 | for group in self.series: | |
| 423 | if type(group[0].content) in (int, float, long): | |
| 424 | group = [Data((index, item.content)) for index,item in enumerate(group)] | |
| 425 | ||
| 426 | for point in group: | |
| 427 | for index, item in enumerate(point.content): | |
| 428 | if item > max_data_value[index]: | |
| 429 | max_data_value[index] = item | |
| 430 | elif item < min_data_value[index]: | |
| 431 | min_data_value[index] = item | |
| 432 | ||
| 433 | if not self.bounds[HORZ]: | |
| 434 | self.bounds[HORZ] = (min_data_value[HORZ], max_data_value[HORZ]) | |
| 435 | if not self.bounds[VERT]: | |
| 436 | self.bounds[VERT] = (min_data_value[VERT], max_data_value[VERT]) | |
| 437 | if not self.bounds[NORM]: | |
| 438 | self.bounds[NORM] = (min_data_value[NORM], max_data_value[NORM]) | |
| 439 | ||
| 440 | def calc_all_extents(self): | |
| 441 | self.calc_extents(HORZ) | |
| 442 | self.calc_extents(VERT) | |
| 443 | ||
| 444 | self.plot_height = self.dimensions[VERT] - 2 * self.borders[VERT] | |
| 445 | self.plot_width = self.dimensions[HORZ] - 2* self.borders[HORZ] | |
| 446 | ||
| 447 | self.plot_top = self.dimensions[VERT] - self.borders[VERT] | |
| 448 | ||
| 449 | def calc_steps(self): | |
| 450 | #Calculates all the x, y, z and color steps | |
| 451 | series_amplitude = [self.bounds[index][1] - self.bounds[index][0] for index in range(3)] | |
| 452 | ||
| 453 | if series_amplitude[HORZ]: | |
| 454 | self.horizontal_step = float (self.plot_width) / series_amplitude[HORZ] | |
| 455 | else: | |
| 456 | self.horizontal_step = 0.00 | |
| 457 | ||
| 458 | if series_amplitude[VERT]: | |
| 459 | self.vertical_step = float (self.plot_height) / series_amplitude[VERT] | |
| 460 | else: | |
| 461 | self.vertical_step = 0.00 | |
| 462 | ||
| 463 | if series_amplitude[NORM]: | |
| 464 | if self.variable_radius: | |
| 465 | self.z_step = float (self.bounds[NORM][1]) / series_amplitude[NORM] | |
| 466 | if self.circle_colors: | |
| 467 | self.circle_color_step = tuple([float(self.circle_colors[1][i]-self.circle_colors[0][i])/series_amplitude[NORM] for i in range(4)]) | |
| 468 | else: | |
| 469 | self.z_step = 0.00 | |
| 470 | self.circle_color_step = ( 0.0, 0.0, 0.0, 0.0 ) | |
| 471 | ||
| 472 | def get_circle_color(self, value): | |
| 473 | return tuple( [self.circle_colors[0][i] + value*self.circle_color_step[i] for i in range(4)] ) | |
| 474 | ||
| 475 | def render(self): | |
| 476 | self.calc_all_extents() | |
| 477 | self.calc_steps() | |
| 478 | self.render_background() | |
| 479 | self.render_bounding_box() | |
| 480 | if self.axis: | |
| 481 | self.render_axis() | |
| 482 | if self.grid: | |
| 483 | self.render_grid() | |
| 484 | self.render_labels() | |
| 485 | self.render_plot() | |
| 486 | if self.errors: | |
| 487 | self.render_errors() | |
| 488 | if self.series_legend and self.series_labels: | |
| 489 | self.render_legend() | |
| 490 | ||
| 491 | def render_axis(self): | |
| 492 | #Draws both the axis lines and their titles | |
| 493 | cr = self.context | |
| 494 | cr.set_source_rgba(*self.line_color) | |
| 495 | cr.move_to(self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT]) | |
| 496 | cr.line_to(self.borders[HORZ], self.borders[VERT]) | |
| 497 | cr.stroke() | |
| 498 | ||
| 499 | cr.move_to(self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT]) | |
| 500 | cr.line_to(self.dimensions[HORZ] - self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT]) | |
| 501 | cr.stroke() | |
| 502 | ||
| 503 | cr.set_source_rgba(*self.label_color) | |
| 504 | self.context.set_font_size( 1.2 * self.font_size ) | |
| 505 | if self.titles[HORZ]: | |
| 506 | title_width,title_height = cr.text_extents(self.titles[HORZ])[2:4] | |
| 507 | cr.move_to( self.dimensions[HORZ]/2 - title_width/2, self.borders[VERT] - title_height/2 ) | |
| 508 | cr.show_text( self.titles[HORZ] ) | |
| 509 | ||
| 510 | if self.titles[VERT]: | |
| 511 | title_width,title_height = cr.text_extents(self.titles[VERT])[2:4] | |
| 512 | cr.move_to( self.dimensions[HORZ] - self.borders[HORZ] + title_height/2, self.dimensions[VERT]/2 - title_width/2) | |
| 513 | cr.save() | |
| 514 | cr.rotate( math.pi/2 ) | |
| 515 | cr.show_text( self.titles[VERT] ) | |
| 516 | cr.restore() | |
| 517 | ||
| 518 | def render_grid(self): | |
| 519 | cr = self.context | |
| 520 | horizontal_step = float( self.plot_height ) / ( len( self.labels[VERT] ) - 1 ) | |
| 521 | vertical_step = float( self.plot_width ) / ( len( self.labels[HORZ] ) - 1 ) | |
| 522 | ||
| 523 | x = self.borders[HORZ] + vertical_step | |
| 524 | y = self.plot_top - horizontal_step | |
| 525 | ||
| 526 | for label in self.labels[HORZ][:-1]: | |
| 527 | cr.set_source_rgba(*self.grid_color) | |
| 528 | cr.move_to(x, self.dimensions[VERT] - self.borders[VERT]) | |
| 529 | cr.line_to(x, self.borders[VERT]) | |
| 530 | cr.stroke() | |
| 531 | x += vertical_step | |
| 532 | for label in self.labels[VERT][:-1]: | |
| 533 | cr.set_source_rgba(*self.grid_color) | |
| 534 | cr.move_to(self.borders[HORZ], y) | |
| 535 | cr.line_to(self.dimensions[HORZ] - self.borders[HORZ], y) | |
| 536 | cr.stroke() | |
| 537 | y -= horizontal_step | |
| 538 | ||
| 539 | def render_labels(self): | |
| 540 | self.context.set_font_size(self.font_size * 0.8) | |
| 541 | self.render_horz_labels() | |
| 542 | self.render_vert_labels() | |
| 543 | ||
| 544 | def render_horz_labels(self): | |
| 545 | cr = self.context | |
| 546 | step = float( self.plot_width ) / ( len( self.labels[HORZ] ) - 1 ) | |
| 547 | x = self.borders[HORZ] | |
| 548 | y = self.dimensions[VERT] - self.borders[VERT] + 5 | |
| 549 | ||
| 550 | # store rotation matrix from the initial state | |
| 551 | rotation_matrix = cr.get_matrix() | |
| 552 | rotation_matrix.rotate(self.x_label_angle) | |
| 553 | ||
| 554 | cr.set_source_rgba(*self.label_color) | |
| 555 | ||
| 556 | for item in self.labels[HORZ]: | |
| 557 | width = cr.text_extents(item)[2] | |
| 558 | cr.move_to(x, y) | |
| 559 | cr.save() | |
| 560 | cr.set_matrix(rotation_matrix) | |
| 561 | cr.show_text(item) | |
| 562 | cr.restore() | |
| 563 | x += step | |
| 564 | ||
| 565 | def render_vert_labels(self): | |
| 566 | cr = self.context | |
| 567 | step = ( self.plot_height ) / ( len( self.labels[VERT] ) - 1 ) | |
| 568 | y = self.plot_top | |
| 569 | cr.set_source_rgba(*self.label_color) | |
| 570 | for item in self.labels[VERT]: | |
| 571 | width = cr.text_extents(item)[2] | |
| 572 | cr.move_to(self.borders[HORZ] - width - 5,y) | |
| 573 | cr.show_text(item) | |
| 574 | y -= step | |
| 575 | ||
| 576 | def render_legend(self): | |
| 577 | cr = self.context | |
| 578 | cr.set_font_size(self.font_size) | |
| 579 | cr.set_line_width(self.line_width) | |
| 580 | ||
| 581 | widest_word = max(self.series_labels, key = lambda item: self.context.text_extents(item)[2]) | |
| 582 | tallest_word = max(self.series_labels, key = lambda item: self.context.text_extents(item)[3]) | |
| 583 | max_width = self.context.text_extents(widest_word)[2] | |
| 584 | max_height = self.context.text_extents(tallest_word)[3] * 1.1 | |
| 585 | ||
| 586 | color_box_height = max_height / 2 | |
| 587 | color_box_width = color_box_height * 2 | |
| 588 | ||
| 589 | #Draw a bounding box | |
| 590 | bounding_box_width = max_width + color_box_width + 15 | |
| 591 | bounding_box_height = (len(self.series_labels)+0.5) * max_height | |
| 592 | cr.set_source_rgba(1,1,1) | |
| 593 | cr.rectangle(self.dimensions[HORZ] - self.borders[HORZ] - bounding_box_width, self.borders[VERT], | |
| 594 | bounding_box_width, bounding_box_height) | |
| 595 | cr.fill() | |
| 596 | ||
| 597 | cr.set_source_rgba(*self.line_color) | |
| 598 | cr.set_line_width(self.line_width) | |
| 599 | cr.rectangle(self.dimensions[HORZ] - self.borders[HORZ] - bounding_box_width, self.borders[VERT], | |
| 600 | bounding_box_width, bounding_box_height) | |
| 601 | cr.stroke() | |
| 602 | ||
| 603 | for idx,key in enumerate(self.series_labels): | |
| 604 | #Draw color box | |
| 605 | cr.set_source_rgba(*self.series_colors[idx][:4]) | |
| 606 | cr.rectangle(self.dimensions[HORZ] - self.borders[HORZ] - max_width - color_box_width - 10, | |
| 607 | self.borders[VERT] + color_box_height + (idx*max_height) , | |
| 608 | color_box_width, color_box_height) | |
| 609 | cr.fill() | |
| 610 | ||
| 611 | cr.set_source_rgba(0, 0, 0) | |
| 612 | cr.rectangle(self.dimensions[HORZ] - self.borders[HORZ] - max_width - color_box_width - 10, | |
| 613 | self.borders[VERT] + color_box_height + (idx*max_height), | |
| 614 | color_box_width, color_box_height) | |
| 615 | cr.stroke() | |
| 616 | ||
| 617 | #Draw series labels | |
| 618 | cr.set_source_rgba(0, 0, 0) | |
| 619 | cr.move_to(self.dimensions[HORZ] - self.borders[HORZ] - max_width - 5, self.borders[VERT] + ((idx+1)*max_height)) | |
| 620 | cr.show_text(key) | |
| 621 | ||
| 622 | def render_errors(self): | |
| 623 | cr = self.context | |
| 624 | cr.rectangle(self.borders[HORZ], self.borders[VERT], self.plot_width, self.plot_height) | |
| 625 | cr.clip() | |
| 626 | radius = self.dots | |
| 627 | x0 = self.borders[HORZ] - self.bounds[HORZ][0]*self.horizontal_step | |
| 628 | y0 = self.borders[VERT] - self.bounds[VERT][0]*self.vertical_step | |
| 629 | for index, group in enumerate(self.series): | |
| 630 | cr.set_source_rgba(*self.series_colors[index][:4]) | |
| 631 | for number, data in enumerate(group): | |
| 632 | x = x0 + self.horizontal_step * data.content[0] | |
| 633 | y = self.dimensions[VERT] - y0 - self.vertical_step * data.content[1] | |
| 634 | if self.errors[HORZ]: | |
| 635 | cr.move_to(x, y) | |
| 636 | x1 = x - self.horizontal_step * self.errors[HORZ][0][number] | |
| 637 | cr.line_to(x1, y) | |
| 638 | cr.line_to(x1, y - radius) | |
| 639 | cr.line_to(x1, y + radius) | |
| 640 | cr.stroke() | |
| 641 | if self.errors[HORZ] and len(self.errors[HORZ]) == 2: | |
| 642 | cr.move_to(x, y) | |
| 643 | x1 = x + self.horizontal_step * self.errors[HORZ][1][number] | |
| 644 | cr.line_to(x1, y) | |
| 645 | cr.line_to(x1, y - radius) | |
| 646 | cr.line_to(x1, y + radius) | |
| 647 | cr.stroke() | |
| 648 | if self.errors[VERT]: | |
| 649 | cr.move_to(x, y) | |
| 650 | y1 = y + self.vertical_step * self.errors[VERT][0][number] | |
| 651 | cr.line_to(x, y1) | |
| 652 | cr.line_to(x - radius, y1) | |
| 653 | cr.line_to(x + radius, y1) | |
| 654 | cr.stroke() | |
| 655 | if self.errors[VERT] and len(self.errors[VERT]) == 2: | |
| 656 | cr.move_to(x, y) | |
| 657 | y1 = y - self.vertical_step * self.errors[VERT][1][number] | |
| 658 | cr.line_to(x, y1) | |
| 659 | cr.line_to(x - radius, y1) | |
| 660 | cr.line_to(x + radius, y1) | |
| 661 | cr.stroke() | |
| 662 | ||
| 663 | ||
| 664 | def render_plot(self): | |
| 665 | cr = self.context | |
| 666 | if self.discrete: | |
| 667 | cr.rectangle(self.borders[HORZ], self.borders[VERT], self.plot_width, self.plot_height) | |
| 668 | cr.clip() | |
| 669 | x0 = self.borders[HORZ] - self.bounds[HORZ][0]*self.horizontal_step | |
| 670 | y0 = self.borders[VERT] - self.bounds[VERT][0]*self.vertical_step | |
| 671 | radius = self.dots | |
| 672 | for number, group in enumerate (self.series): | |
| 673 | cr.set_source_rgba(*self.series_colors[number][:4]) | |
| 674 | for data in group : | |
| 675 | if self.variable_radius: | |
| 676 | radius = data.content[2]*self.z_step | |
| 677 | if self.circle_colors: | |
| 678 | cr.set_source_rgba( *self.get_circle_color( data.content[2]) ) | |
| 679 | x = x0 + self.horizontal_step*data.content[0] | |
| 680 | y = y0 + self.vertical_step*data.content[1] | |
| 681 | cr.arc(x, self.dimensions[VERT] - y, radius, 0, 2*math.pi) | |
| 682 | cr.fill() | |
| 683 | else: | |
| 684 | cr.rectangle(self.borders[HORZ], self.borders[VERT], self.plot_width, self.plot_height) | |
| 685 | cr.clip() | |
| 686 | x0 = self.borders[HORZ] - self.bounds[HORZ][0]*self.horizontal_step | |
| 687 | y0 = self.borders[VERT] - self.bounds[VERT][0]*self.vertical_step | |
| 688 | radius = self.dots | |
| 689 | for number, group in enumerate (self.series): | |
| 690 | last_data = None | |
| 691 | cr.set_source_rgba(*self.series_colors[number][:4]) | |
| 692 | for data in group : | |
| 693 | x = x0 + self.horizontal_step*data.content[0] | |
| 694 | y = y0 + self.vertical_step*data.content[1] | |
| 695 | if self.dots: | |
| 696 | if self.variable_radius: | |
| 697 | radius = data.content[2]*self.z_step | |
| 698 | cr.arc(x, self.dimensions[VERT] - y, radius, 0, 2*math.pi) | |
| 699 | cr.fill() | |
| 700 | if last_data : | |
| 701 | old_x = x0 + self.horizontal_step*last_data.content[0] | |
| 702 | old_y = y0 + self.vertical_step*last_data.content[1] | |
| 703 | cr.move_to( old_x, self.dimensions[VERT] - old_y ) | |
| 704 | cr.line_to( x, self.dimensions[VERT] - y) | |
| 705 | cr.set_line_width(self.series_widths[number]) | |
| 706 | ||
| 707 | # Display line as dash line | |
| 708 | if self.dash and self.dash[number]: | |
| 709 | s = self.series_widths[number] | |
| 710 | cr.set_dash([s*3, s*3], 0) | |
| 711 | ||
| 712 | cr.stroke() | |
| 713 | cr.set_dash([]) | |
| 714 | last_data = data | |
| 715 | ||
| 716 | class DotLinePlot(ScatterPlot): | |
| 717 | def __init__(self, | |
| 718 | surface=None, | |
| 719 | data=None, | |
| 720 | width=640, | |
| 721 | height=480, | |
| 722 | background=None, | |
| 723 | border=0, | |
| 724 | axis = False, | |
| 725 | dash = False, | |
| 726 | dots = 0, | |
| 727 | grid = False, | |
| 728 | series_legend = False, | |
| 729 | x_labels = None, | |
| 730 | y_labels = None, | |
| 731 | x_bounds = None, | |
| 732 | y_bounds = None, | |
| 733 | x_title = None, | |
| 734 | y_title = None, | |
| 735 | series_colors = None): | |
| 736 | ||
| 737 | ScatterPlot.__init__(self, surface, data, None, None, width, height, background, border, | |
| 738 | axis, dash, False, dots, grid, series_legend, x_labels, y_labels, | |
| 739 | x_bounds, y_bounds, None, x_title, y_title, series_colors, None ) | |
| 740 | ||
| 741 | ||
| 742 | def load_series(self, data, x_labels = None, y_labels = None, series_colors=None): | |
| 743 | Plot.load_series(self, data, x_labels, y_labels, series_colors) | |
| 744 | for group in self.series : | |
| 745 | for index,data in enumerate(group): | |
| 746 | group[index].content = (index, data.content) | |
| 747 | ||
| 748 | self.calc_boundaries() | |
| 749 | self.calc_labels() | |
| 750 | ||
| 751 | class FunctionPlot(ScatterPlot): | |
| 752 | def __init__(self, | |
| 753 | surface=None, | |
| 754 | data=None, | |
| 755 | width=640, | |
| 756 | height=480, | |
| 757 | background=None, | |
| 758 | border=0, | |
| 759 | axis = False, | |
| 760 | discrete = False, | |
| 761 | dots = 0, | |
| 762 | grid = False, | |
| 763 | series_legend = False, | |
| 764 | x_labels = None, | |
| 765 | y_labels = None, | |
| 766 | x_bounds = None, | |
| 767 | y_bounds = None, | |
| 768 | x_title = None, | |
| 769 | y_title = None, | |
| 770 | series_colors = None, | |
| 771 | step = 1): | |
| 772 | ||
| 773 | self.function = data | |
| 774 | self.step = step | |
| 775 | self.discrete = discrete | |
| 776 | ||
| 777 | data, x_bounds = self.load_series_from_function( self.function, x_bounds ) | |
| 778 | ||
| 779 | ScatterPlot.__init__(self, surface, data, None, None, width, height, background, border, | |
| 780 | axis, False, discrete, dots, grid, series_legend, x_labels, y_labels, | |
| 781 | x_bounds, y_bounds, None, x_title, y_title, series_colors, None ) | |
| 782 | ||
| 783 | def load_series(self, data, x_labels = None, y_labels = None, series_colors=None): | |
| 784 | Plot.load_series(self, data, x_labels, y_labels, series_colors) | |
| 785 | ||
| 786 | if len(self.series[0][0]) is 1: | |
| 787 | for group_id, group in enumerate(self.series) : | |
| 788 | for index,data in enumerate(group): | |
| 789 | group[index].content = (self.bounds[HORZ][0] + self.step*index, data.content) | |
| 790 | ||
| 791 | self.calc_boundaries() | |
| 792 | self.calc_labels() | |
| 793 | ||
| 794 | def load_series_from_function( self, function, x_bounds ): | |
| 795 | #TODO: Add the possibility for the user to define multiple functions with different discretization parameters | |
| 796 | ||
| 797 | #This function converts a function, a list of functions or a dictionary | |
| 798 | #of functions into its corresponding array of data | |
| 799 | series = Series() | |
| 800 | ||
| 801 | if isinstance(function, Group) or isinstance(function, Data): | |
| 802 | function = Series(function) | |
| 803 | ||
| 804 | # If is instance of Series | |
| 805 | if isinstance(function, Series): | |
| 806 | # Overwrite any bounds passed by the function | |
| 807 | x_bounds = (function.range[0],function.range[-1]) | |
| 808 | ||
| 809 | #if no bounds are provided | |
| 810 | if x_bounds == None: | |
| 811 | x_bounds = (0,10) | |
| 812 | ||
| 813 | ||
| 814 | #TODO: Finish the dict translation | |
| 815 | if hasattr(function, "keys"): #dictionary: | |
| 816 | for key in function.keys(): | |
| 817 | group = Group(name=key) | |
| 818 | #data[ key ] = [] | |
| 819 | i = x_bounds[0] | |
| 820 | while i <= x_bounds[1] : | |
| 821 | group.add_data(function[ key ](i)) | |
| 822 | #data[ key ].append( function[ key ](i) ) | |
| 823 | i += self.step | |
| 824 | series.add_group(group) | |
| 825 | ||
| 826 | elif hasattr(function, "__delitem__"): #list of functions | |
| 827 | for index,f in enumerate( function ) : | |
| 828 | group = Group() | |
| 829 | #data.append( [] ) | |
| 830 | i = x_bounds[0] | |
| 831 | while i <= x_bounds[1] : | |
| 832 | group.add_data(f(i)) | |
| 833 | #data[ index ].append( f(i) ) | |
| 834 | i += self.step | |
| 835 | series.add_group(group) | |
| 836 | ||
| 837 | elif isinstance(function, Series): # instance of Series | |
| 838 | series = function | |
| 839 | ||
| 840 | else: #function | |
| 841 | group = Group() | |
| 842 | i = x_bounds[0] | |
| 843 | while i <= x_bounds[1] : | |
| 844 | group.add_data(function(i)) | |
| 845 | i += self.step | |
| 846 | series.add_group(group) | |
| 847 | ||
| 848 | ||
| 849 | return series, x_bounds | |
| 850 | ||
| 851 | def calc_labels(self): | |
| 852 | if not self.labels[HORZ]: | |
| 853 | self.labels[HORZ] = [] | |
| 854 | i = self.bounds[HORZ][0] | |
| 855 | while i<=self.bounds[HORZ][1]: | |
| 856 | self.labels[HORZ].append(str(i)) | |
| 857 | i += float(self.bounds[HORZ][1] - self.bounds[HORZ][0])/10 | |
| 858 | ScatterPlot.calc_labels(self) | |
| 859 | ||
| 860 | def render_plot(self): | |
| 861 | if not self.discrete: | |
| 862 | ScatterPlot.render_plot(self) | |
| 863 | else: | |
| 864 | last = None | |
| 865 | cr = self.context | |
| 866 | for number, group in enumerate (self.series): | |
| 867 | cr.set_source_rgba(*self.series_colors[number][:4]) | |
| 868 | x0 = self.borders[HORZ] - self.bounds[HORZ][0]*self.horizontal_step | |
| 869 | y0 = self.borders[VERT] - self.bounds[VERT][0]*self.vertical_step | |
| 870 | for data in group: | |
| 871 | x = x0 + self.horizontal_step * data.content[0] | |
| 872 | y = y0 + self.vertical_step * data.content[1] | |
| 873 | cr.move_to(x, self.dimensions[VERT] - y) | |
| 874 | cr.line_to(x, self.plot_top) | |
| 875 | cr.set_line_width(self.series_widths[number]) | |
| 876 | cr.stroke() | |
| 877 | if self.dots: | |
| 878 | cr.new_path() | |
| 879 | cr.arc(x, self.dimensions[VERT] - y, 3, 0, 2.1 * math.pi) | |
| 880 | cr.close_path() | |
| 881 | cr.fill() | |
| 882 | ||
| 883 | class BarPlot(Plot): | |
| 884 | def __init__(self, | |
| 885 | surface = None, | |
| 886 | data = None, | |
| 887 | width = 640, | |
| 888 | height = 480, | |
| 889 | background = "white light_gray", | |
| 890 | border = 0, | |
| 891 | display_values = False, | |
| 892 | grid = False, | |
| 893 | rounded_corners = False, | |
| 894 | stack = False, | |
| 895 | three_dimension = False, | |
| 896 | x_labels = None, | |
| 897 | y_labels = None, | |
| 898 | x_bounds = None, | |
| 899 | y_bounds = None, | |
| 900 | series_colors = None, | |
| 901 | main_dir = None): | |
| 902 | ||
| 903 | self.bounds = {} | |
| 904 | self.bounds[HORZ] = x_bounds | |
| 905 | self.bounds[VERT] = y_bounds | |
| 906 | self.display_values = display_values | |
| 907 | self.grid = grid | |
| 908 | self.rounded_corners = rounded_corners | |
| 909 | self.stack = stack | |
| 910 | self.three_dimension = three_dimension | |
| 911 | self.x_label_angle = math.pi / 2.5 | |
| 912 | self.main_dir = main_dir | |
| 913 | self.max_value = {} | |
| 914 | self.plot_dimensions = {} | |
| 915 | self.steps = {} | |
| 916 | self.value_label_color = (0.5,0.5,0.5,1.0) | |
| 917 | ||
| 918 | Plot.__init__(self, surface, data, width, height, background, border, x_labels, y_labels, series_colors) | |
| 919 | ||
| 920 | def load_series(self, data, x_labels = None, y_labels = None, series_colors = None): | |
| 921 | Plot.load_series(self, data, x_labels, y_labels, series_colors) | |
| 922 | self.calc_boundaries() | |
| 923 | ||
| 924 | def process_colors(self, series_colors): | |
| 925 | #Data for a BarPlot might be a List or a List of Lists. | |
| 926 | #On the first case, colors must be generated for all bars, | |
| 927 | #On the second, colors must be generated for each of the inner lists. | |
| 928 | ||
| 929 | #TODO: Didn't get it... | |
| 930 | #if hasattr(self.data[0], '__getitem__'): | |
| 931 | # length = max(len(series) for series in self.data) | |
| 932 | #else: | |
| 933 | # length = len( self.data ) | |
| 934 | ||
| 935 | length = max(len(group) for group in self.series) | |
| 936 | ||
| 937 | Plot.process_colors( self, series_colors, length, 'linear') | |
| 938 | ||
| 939 | def calc_boundaries(self): | |
| 940 | if not self.bounds[self.main_dir]: | |
| 941 | if self.stack: | |
| 942 | max_data_value = max(sum(group.to_list()) for group in self.series) | |
| 943 | else: | |
| 944 | max_data_value = max(max(group.to_list()) for group in self.series) | |
| 945 | self.bounds[self.main_dir] = (0, max_data_value) | |
| 946 | if not self.bounds[other_direction(self.main_dir)]: | |
| 947 | self.bounds[other_direction(self.main_dir)] = (0, len(self.series)) | |
| 948 | ||
| 949 | def calc_extents(self, direction): | |
| 950 | self.max_value[direction] = 0 | |
| 951 | if self.labels[direction]: | |
| 952 | widest_word = max(self.labels[direction], key = lambda item: self.context.text_extents(item)[2]) | |
| 953 | self.max_value[direction] = self.context.text_extents(widest_word)[3 - direction] | |
| 954 | self.borders[other_direction(direction)] = (2-direction)*self.max_value[direction] + self.border + direction*(5) | |
| 955 | else: | |
| 956 | self.borders[other_direction(direction)] = self.border | |
| 957 | ||
| 958 | def calc_horz_extents(self): | |
| 959 | self.calc_extents(HORZ) | |
| 960 | ||
| 961 | def calc_vert_extents(self): | |
| 962 | self.calc_extents(VERT) | |
| 963 | ||
| 964 | def calc_all_extents(self): | |
| 965 | self.calc_horz_extents() | |
| 966 | self.calc_vert_extents() | |
| 967 | other_dir = other_direction(self.main_dir) | |
| 968 | self.value_label = 0 | |
| 969 | if self.display_values: | |
| 970 | if self.stack: | |
| 971 | self.value_label = self.context.text_extents(str(max(sum(group.to_list()) for group in self.series)))[2 + self.main_dir] | |
| 972 | else: | |
| 973 | self.value_label = self.context.text_extents(str(max(max(group.to_list()) for group in self.series)))[2 + self.main_dir] | |
| 974 | if self.labels[self.main_dir]: | |
| 975 | self.plot_dimensions[self.main_dir] = self.dimensions[self.main_dir] - 2*self.borders[self.main_dir] - self.value_label | |
| 976 | else: | |
| 977 | self.plot_dimensions[self.main_dir] = self.dimensions[self.main_dir] - self.borders[self.main_dir] - 1.2*self.border - self.value_label | |
| 978 | self.plot_dimensions[other_dir] = self.dimensions[other_dir] - self.borders[other_dir] - self.border | |
| 979 | self.plot_top = self.dimensions[VERT] - self.borders[VERT] | |
| 980 | ||
| 981 | def calc_steps(self): | |
| 982 | other_dir = other_direction(self.main_dir) | |
| 983 | self.series_amplitude = self.bounds[self.main_dir][1] - self.bounds[self.main_dir][0] | |
| 984 | if self.series_amplitude: | |
| 985 | self.steps[self.main_dir] = float(self.plot_dimensions[self.main_dir])/self.series_amplitude | |
| 986 | else: | |
| 987 | self.steps[self.main_dir] = 0.00 | |
| 988 | series_length = len(self.series) | |
| 989 | self.steps[other_dir] = float(self.plot_dimensions[other_dir])/(series_length + 0.1*(series_length + 1)) | |
| 990 | self.space = 0.1*self.steps[other_dir] | |
| 991 | ||
| 992 | def render(self): | |
| 993 | self.calc_all_extents() | |
| 994 | self.calc_steps() | |
| 995 | self.render_background() | |
| 996 | self.render_bounding_box() | |
| 997 | if self.grid: | |
| 998 | self.render_grid() | |
| 999 | if self.three_dimension: | |
| 1000 | self.render_ground() | |
| 1001 | if self.display_values: | |
| 1002 | self.render_values() | |
| 1003 | self.render_labels() | |
| 1004 | self.render_plot() | |
| 1005 | if self.series_labels: | |
| 1006 | self.render_legend() | |
| 1007 | ||
| 1008 | def draw_3d_rectangle_front(self, x0, y0, x1, y1, shift): | |
| 1009 | self.context.rectangle(x0-shift, y0+shift, x1-x0, y1-y0) | |
| 1010 | ||
| 1011 | def draw_3d_rectangle_side(self, x0, y0, x1, y1, shift): | |
| 1012 | self.context.move_to(x1-shift,y0+shift) | |
| 1013 | self.context.line_to(x1, y0) | |
| 1014 | self.context.line_to(x1, y1) | |
| 1015 | self.context.line_to(x1-shift, y1+shift) | |
| 1016 | self.context.line_to(x1-shift, y0+shift) | |
| 1017 | self.context.close_path() | |
| 1018 | ||
| 1019 | def draw_3d_rectangle_top(self, x0, y0, x1, y1, shift): | |
| 1020 | self.context.move_to(x0-shift,y0+shift) | |
| 1021 | self.context.line_to(x0, y0) | |
| 1022 | self.context.line_to(x1, y0) | |
| 1023 | self.context.line_to(x1-shift, y0+shift) | |
| 1024 | self.context.line_to(x0-shift, y0+shift) | |
| 1025 | self.context.close_path() | |
| 1026 | ||
| 1027 | def draw_round_rectangle(self, x0, y0, x1, y1): | |
| 1028 | self.context.arc(x0+5, y0+5, 5, -math.pi, -math.pi/2) | |
| 1029 | self.context.line_to(x1-5, y0) | |
| 1030 | self.context.arc(x1-5, y0+5, 5, -math.pi/2, 0) | |
| 1031 | self.context.line_to(x1, y1-5) | |
| 1032 | self.context.arc(x1-5, y1-5, 5, 0, math.pi/2) | |
| 1033 | self.context.line_to(x0+5, y1) | |
| 1034 | self.context.arc(x0+5, y1-5, 5, math.pi/2, math.pi) | |
| 1035 | self.context.line_to(x0, y0+5) | |
| 1036 | self.context.close_path() | |
| 1037 | ||
| 1038 | def render_ground(self): | |
| 1039 | self.draw_3d_rectangle_front(self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT], | |
| 1040 | self.dimensions[HORZ] - self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT] + 5, 10) | |
| 1041 | self.context.fill() | |
| 1042 | ||
| 1043 | self.draw_3d_rectangle_side (self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT], | |
| 1044 | self.dimensions[HORZ] - self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT] + 5, 10) | |
| 1045 | self.context.fill() | |
| 1046 | ||
| 1047 | self.draw_3d_rectangle_top (self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT], | |
| 1048 | self.dimensions[HORZ] - self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT] + 5, 10) | |
| 1049 | self.context.fill() | |
| 1050 | ||
| 1051 | def render_labels(self): | |
| 1052 | self.context.set_font_size(self.font_size * 0.8) | |
| 1053 | if self.labels[HORZ]: | |
| 1054 | self.render_horz_labels() | |
| 1055 | if self.labels[VERT]: | |
| 1056 | self.render_vert_labels() | |
| 1057 | ||
| 1058 | def render_legend(self): | |
| 1059 | cr = self.context | |
| 1060 | cr.set_font_size(self.font_size) | |
| 1061 | cr.set_line_width(self.line_width) | |
| 1062 | ||
| 1063 | widest_word = max(self.series_labels, key = lambda item: self.context.text_extents(item)[2]) | |
| 1064 | tallest_word = max(self.series_labels, key = lambda item: self.context.text_extents(item)[3]) | |
| 1065 | max_width = self.context.text_extents(widest_word)[2] | |
| 1066 | max_height = self.context.text_extents(tallest_word)[3] * 1.1 + 5 | |
| 1067 | ||
| 1068 | color_box_height = max_height / 2 | |
| 1069 | color_box_width = color_box_height * 2 | |
| 1070 | ||
| 1071 | #Draw a bounding box | |
| 1072 | bounding_box_width = max_width + color_box_width + 15 | |
| 1073 | bounding_box_height = (len(self.series_labels)+0.5) * max_height | |
| 1074 | cr.set_source_rgba(1,1,1) | |
| 1075 | cr.rectangle(self.dimensions[HORZ] - self.border - bounding_box_width, self.border, | |
| 1076 | bounding_box_width, bounding_box_height) | |
| 1077 | cr.fill() | |
| 1078 | ||
| 1079 | cr.set_source_rgba(*self.line_color) | |
| 1080 | cr.set_line_width(self.line_width) | |
| 1081 | cr.rectangle(self.dimensions[HORZ] - self.border - bounding_box_width, self.border, | |
| 1082 | bounding_box_width, bounding_box_height) | |
| 1083 | cr.stroke() | |
| 1084 | ||
| 1085 | for idx,key in enumerate(self.series_labels): | |
| 1086 | #Draw color box | |
| 1087 | cr.set_source_rgba(*self.series_colors[idx][:4]) | |
| 1088 | cr.rectangle(self.dimensions[HORZ] - self.border - max_width - color_box_width - 10, | |
| 1089 | self.border + color_box_height + (idx*max_height) , | |
| 1090 | color_box_width, color_box_height) | |
| 1091 | cr.fill() | |
| 1092 | ||
| 1093 | cr.set_source_rgba(0, 0, 0) | |
| 1094 | cr.rectangle(self.dimensions[HORZ] - self.border - max_width - color_box_width - 10, | |
| 1095 | self.border + color_box_height + (idx*max_height), | |
| 1096 | color_box_width, color_box_height) | |
| 1097 | cr.stroke() | |
| 1098 | ||
| 1099 | #Draw series labels | |
| 1100 | cr.set_source_rgba(0, 0, 0) | |
| 1101 | cr.move_to(self.dimensions[HORZ] - self.border - max_width - 5, self.border + ((idx+1)*max_height)) | |
| 1102 | cr.show_text(key) | |
| 1103 | ||
| 1104 | ||
| 1105 | class HorizontalBarPlot(BarPlot): | |
| 1106 | def __init__(self, | |
| 1107 | surface = None, | |
| 1108 | data = None, | |
| 1109 | width = 640, | |
| 1110 | height = 480, | |
| 1111 | background = "white light_gray", | |
| 1112 | border = 0, | |
| 1113 | display_values = False, | |
| 1114 | grid = False, | |
| 1115 | rounded_corners = False, | |
| 1116 | stack = False, | |
| 1117 | three_dimension = False, | |
| 1118 | series_labels = None, | |
| 1119 | x_labels = None, | |
| 1120 | y_labels = None, | |
| 1121 | x_bounds = None, | |
| 1122 | y_bounds = None, | |
| 1123 | series_colors = None): | |
| 1124 | ||
| 1125 | BarPlot.__init__(self, surface, data, width, height, background, border, | |
| 1126 | display_values, grid, rounded_corners, stack, three_dimension, | |
| 1127 | x_labels, y_labels, x_bounds, y_bounds, series_colors, HORZ) | |
| 1128 | self.series_labels = series_labels | |
| 1129 | ||
| 1130 | def calc_vert_extents(self): | |
| 1131 | self.calc_extents(VERT) | |
| 1132 | if self.labels[HORZ] and not self.labels[VERT]: | |
| 1133 | self.borders[HORZ] += 10 | |
| 1134 | ||
| 1135 | def draw_rectangle_bottom(self, x0, y0, x1, y1): | |
| 1136 | self.context.arc(x0+5, y1-5, 5, math.pi/2, math.pi) | |
| 1137 | self.context.line_to(x0, y0+5) | |
| 1138 | self.context.arc(x0+5, y0+5, 5, -math.pi, -math.pi/2) | |
| 1139 | self.context.line_to(x1, y0) | |
| 1140 | self.context.line_to(x1, y1) | |
| 1141 | self.context.line_to(x0+5, y1) | |
| 1142 | self.context.close_path() | |
| 1143 | ||
| 1144 | def draw_rectangle_top(self, x0, y0, x1, y1): | |
| 1145 | self.context.arc(x1-5, y0+5, 5, -math.pi/2, 0) | |
| 1146 | self.context.line_to(x1, y1-5) | |
| 1147 | self.context.arc(x1-5, y1-5, 5, 0, math.pi/2) | |
| 1148 | self.context.line_to(x0, y1) | |
| 1149 | self.context.line_to(x0, y0) | |
| 1150 | self.context.line_to(x1, y0) | |
| 1151 | self.context.close_path() | |
| 1152 | ||
| 1153 | def draw_rectangle(self, index, length, x0, y0, x1, y1): | |
| 1154 | if length == 1: | |
| 1155 | BarPlot.draw_rectangle(self, x0, y0, x1, y1) | |
| 1156 | elif index == 0: | |
| 1157 | self.draw_rectangle_bottom(x0, y0, x1, y1) | |
| 1158 | elif index == length-1: | |
| 1159 | self.draw_rectangle_top(x0, y0, x1, y1) | |
| 1160 | else: | |
| 1161 | self.context.rectangle(x0, y0, x1-x0, y1-y0) | |
| 1162 | ||
| 1163 | #TODO: Review BarPlot.render_grid code | |
| 1164 | def render_grid(self): | |
| 1165 | self.context.set_source_rgba(0.8, 0.8, 0.8) | |
| 1166 | if self.labels[HORZ]: | |
| 1167 | self.context.set_font_size(self.font_size * 0.8) | |
| 1168 | step = (self.dimensions[HORZ] - 2*self.borders[HORZ] - self.value_label)/(len(self.labels[HORZ])-1) | |
| 1169 | x = self.borders[HORZ] | |
| 1170 | next_x = 0 | |
| 1171 | for item in self.labels[HORZ]: | |
| 1172 | width = self.context.text_extents(item)[2] | |
| 1173 | if x - width/2 > next_x and x - width/2 > self.border: | |
| 1174 | self.context.move_to(x, self.border) | |
| 1175 | self.context.line_to(x, self.dimensions[VERT] - self.borders[VERT]) | |
| 1176 | self.context.stroke() | |
| 1177 | next_x = x + width/2 | |
| 1178 | x += step | |
| 1179 | else: | |
| 1180 | lines = 11 | |
| 1181 | horizontal_step = float(self.plot_dimensions[HORZ])/(lines-1) | |
| 1182 | x = self.borders[HORZ] | |
| 1183 | for y in xrange(0, lines): | |
| 1184 | self.context.move_to(x, self.border) | |
| 1185 | self.context.line_to(x, self.dimensions[VERT] - self.borders[VERT]) | |
| 1186 | self.context.stroke() | |
| 1187 | x += horizontal_step | |
| 1188 | ||
| 1189 | def render_horz_labels(self): | |
| 1190 | step = (self.dimensions[HORZ] - 2*self.borders[HORZ])/(len(self.labels[HORZ])-1) | |
| 1191 | x = self.borders[HORZ] | |
| 1192 | next_x = 0 | |
| 1193 | ||
| 1194 | for item in self.labels[HORZ]: | |
| 1195 | self.context.set_source_rgba(*self.label_color) | |
| 1196 | width = self.context.text_extents(item)[2] | |
| 1197 | if x - width/2 > next_x and x - width/2 > self.border: | |
| 1198 | self.context.move_to(x - width/2, self.dimensions[VERT] - self.borders[VERT] + self.max_value[HORZ] + 3) | |
| 1199 | self.context.show_text(item) | |
| 1200 | next_x = x + width/2 | |
| 1201 | x += step | |
| 1202 | ||
| 1203 | def render_vert_labels(self): | |
| 1204 | series_length = len(self.labels[VERT]) | |
| 1205 | step = (self.plot_dimensions[VERT] - (series_length + 1)*self.space)/(len(self.labels[VERT])) | |
| 1206 | y = self.border + step/2 + self.space | |
| 1207 | ||
| 1208 | for item in self.labels[VERT]: | |
| 1209 | self.context.set_source_rgba(*self.label_color) | |
| 1210 | width, height = self.context.text_extents(item)[2:4] | |
| 1211 | self.context.move_to(self.borders[HORZ] - width - 5, y + height/2) | |
| 1212 | self.context.show_text(item) | |
| 1213 | y += step + self.space | |
| 1214 | self.labels[VERT].reverse() | |
| 1215 | ||
| 1216 | def render_values(self): | |
| 1217 | self.context.set_source_rgba(*self.value_label_color) | |
| 1218 | self.context.set_font_size(self.font_size * 0.8) | |
| 1219 | if self.stack: | |
| 1220 | for i,group in enumerate(self.series): | |
| 1221 | value = sum(group.to_list()) | |
| 1222 | height = self.context.text_extents(str(value))[3] | |
| 1223 | x = self.borders[HORZ] + value*self.steps[HORZ] + 2 | |
| 1224 | y = self.borders[VERT] + (i+0.5)*self.steps[VERT] + (i+1)*self.space + height/2 | |
| 1225 | self.context.move_to(x, y) | |
| 1226 | self.context.show_text(str(value)) | |
| 1227 | else: | |
| 1228 | for i,group in enumerate(self.series): | |
| 1229 | inner_step = self.steps[VERT]/len(group) | |
| 1230 | y0 = self.border + i*self.steps[VERT] + (i+1)*self.space | |
| 1231 | for number,data in enumerate(group): | |
| 1232 | height = self.context.text_extents(str(data.content))[3] | |
| 1233 | self.context.move_to(self.borders[HORZ] + data.content*self.steps[HORZ] + 2, y0 + 0.5*inner_step + height/2, ) | |
| 1234 | self.context.show_text(str(data.content)) | |
| 1235 | y0 += inner_step | |
| 1236 | ||
| 1237 | def render_plot(self): | |
| 1238 | if self.stack: | |
| 1239 | for i,group in enumerate(self.series): | |
| 1240 | x0 = self.borders[HORZ] | |
| 1241 | y0 = self.borders[VERT] + i*self.steps[VERT] + (i+1)*self.space | |
| 1242 | for number,data in enumerate(group): | |
| 1243 | if self.series_colors[number][4] in ('radial','linear') : | |
| 1244 | linear = cairo.LinearGradient( data.content*self.steps[HORZ]/2, y0, data.content*self.steps[HORZ]/2, y0 + self.steps[VERT] ) | |
| 1245 | color = self.series_colors[number] | |
| 1246 | linear.add_color_stop_rgba(0.0, 3.5*color[0]/5.0, 3.5*color[1]/5.0, 3.5*color[2]/5.0,1.0) | |
| 1247 | linear.add_color_stop_rgba(1.0, *color[:4]) | |
| 1248 | self.context.set_source(linear) | |
| 1249 | elif self.series_colors[number][4] == 'solid': | |
| 1250 | self.context.set_source_rgba(*self.series_colors[number][:4]) | |
| 1251 | if self.rounded_corners: | |
| 1252 | self.draw_rectangle(number, len(group), x0, y0, x0+data.content*self.steps[HORZ], y0+self.steps[VERT]) | |
| 1253 | self.context.fill() | |
| 1254 | else: | |
| 1255 | self.context.rectangle(x0, y0, data.content*self.steps[HORZ], self.steps[VERT]) | |
| 1256 | self.context.fill() | |
| 1257 | x0 += data.content*self.steps[HORZ] | |
| 1258 | else: | |
| 1259 | for i,group in enumerate(self.series): | |
| 1260 | inner_step = self.steps[VERT]/len(group) | |
| 1261 | x0 = self.borders[HORZ] | |
| 1262 | y0 = self.border + i*self.steps[VERT] + (i+1)*self.space | |
| 1263 | for number,data in enumerate(group): | |
| 1264 | linear = cairo.LinearGradient(data.content*self.steps[HORZ]/2, y0, data.content*self.steps[HORZ]/2, y0 + inner_step) | |
| 1265 | color = self.series_colors[number] | |
| 1266 | linear.add_color_stop_rgba(0.0, 3.5*color[0]/5.0, 3.5*color[1]/5.0, 3.5*color[2]/5.0,1.0) | |
| 1267 | linear.add_color_stop_rgba(1.0, *color[:4]) | |
| 1268 | self.context.set_source(linear) | |
| 1269 | if self.rounded_corners and data.content != 0: | |
| 1270 | BarPlot.draw_round_rectangle(self,x0, y0, x0 + data.content*self.steps[HORZ], y0 + inner_step) | |
| 1271 | self.context.fill() | |
| 1272 | else: | |
| 1273 | self.context.rectangle(x0, y0, data.content*self.steps[HORZ], inner_step) | |
| 1274 | self.context.fill() | |
| 1275 | y0 += inner_step | |
| 1276 | ||
| 1277 | class VerticalBarPlot(BarPlot): | |
| 1278 | def __init__(self, | |
| 1279 | surface = None, | |
| 1280 | data = None, | |
| 1281 | width = 640, | |
| 1282 | height = 480, | |
| 1283 | background = "white light_gray", | |
| 1284 | border = 0, | |
| 1285 | display_values = False, | |
| 1286 | grid = False, | |
| 1287 | rounded_corners = False, | |
| 1288 | stack = False, | |
| 1289 | three_dimension = False, | |
| 1290 | series_labels = None, | |
| 1291 | x_labels = None, | |
| 1292 | y_labels = None, | |
| 1293 | x_bounds = None, | |
| 1294 | y_bounds = None, | |
| 1295 | series_colors = None): | |
| 1296 | ||
| 1297 | BarPlot.__init__(self, surface, data, width, height, background, border, | |
| 1298 | display_values, grid, rounded_corners, stack, three_dimension, | |
| 1299 | x_labels, y_labels, x_bounds, y_bounds, series_colors, VERT) | |
| 1300 | self.series_labels = series_labels | |
| 1301 | ||
| 1302 | def calc_vert_extents(self): | |
| 1303 | self.calc_extents(VERT) | |
| 1304 | if self.labels[VERT] and not self.labels[HORZ]: | |
| 1305 | self.borders[VERT] += 10 | |
| 1306 | ||
| 1307 | def draw_rectangle_bottom(self, x0, y0, x1, y1): | |
| 1308 | self.context.move_to(x1,y1) | |
| 1309 | self.context.arc(x1-5, y1-5, 5, 0, math.pi/2) | |
| 1310 | self.context.line_to(x0+5, y1) | |
| 1311 | self.context.arc(x0+5, y1-5, 5, math.pi/2, math.pi) | |
| 1312 | self.context.line_to(x0, y0) | |
| 1313 | self.context.line_to(x1, y0) | |
| 1314 | self.context.line_to(x1, y1) | |
| 1315 | self.context.close_path() | |
| 1316 | ||
| 1317 | def draw_rectangle_top(self, x0, y0, x1, y1): | |
| 1318 | self.context.arc(x0+5, y0+5, 5, -math.pi, -math.pi/2) | |
| 1319 | self.context.line_to(x1-5, y0) | |
| 1320 | self.context.arc(x1-5, y0+5, 5, -math.pi/2, 0) | |
| 1321 | self.context.line_to(x1, y1) | |
| 1322 | self.context.line_to(x0, y1) | |
| 1323 | self.context.line_to(x0, y0) | |
| 1324 | self.context.close_path() | |
| 1325 | ||
| 1326 | def draw_rectangle(self, index, length, x0, y0, x1, y1): | |
| 1327 | if length == 1: | |
| 1328 | BarPlot.draw_rectangle(self, x0, y0, x1, y1) | |
| 1329 | elif index == 0: | |
| 1330 | self.draw_rectangle_bottom(x0, y0, x1, y1) | |
| 1331 | elif index == length-1: | |
| 1332 | self.draw_rectangle_top(x0, y0, x1, y1) | |
| 1333 | else: | |
| 1334 | self.context.rectangle(x0, y0, x1-x0, y1-y0) | |
| 1335 | ||
| 1336 | def render_grid(self): | |
| 1337 | self.context.set_source_rgba(0.8, 0.8, 0.8) | |
| 1338 | if self.labels[VERT]: | |
| 1339 | lines = len(self.labels[VERT]) | |
| 1340 | vertical_step = float(self.plot_dimensions[self.main_dir])/(lines-1) | |
| 1341 | y = self.borders[VERT] + self.value_label | |
| 1342 | else: | |
| 1343 | lines = 11 | |
| 1344 | vertical_step = float(self.plot_dimensions[self.main_dir])/(lines-1) | |
| 1345 | y = 1.2*self.border + self.value_label | |
| 1346 | for x in xrange(0, lines): | |
| 1347 | self.context.move_to(self.borders[HORZ], y) | |
| 1348 | self.context.line_to(self.dimensions[HORZ] - self.border, y) | |
| 1349 | self.context.stroke() | |
| 1350 | y += vertical_step | |
| 1351 | ||
| 1352 | def render_ground(self): | |
| 1353 | self.draw_3d_rectangle_front(self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT], | |
| 1354 | self.dimensions[HORZ] - self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT] + 5, 10) | |
| 1355 | self.context.fill() | |
| 1356 | ||
| 1357 | self.draw_3d_rectangle_side (self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT], | |
| 1358 | self.dimensions[HORZ] - self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT] + 5, 10) | |
| 1359 | self.context.fill() | |
| 1360 | ||
| 1361 | self.draw_3d_rectangle_top (self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT], | |
| 1362 | self.dimensions[HORZ] - self.borders[HORZ], self.dimensions[VERT] - self.borders[VERT] + 5, 10) | |
| 1363 | self.context.fill() | |
| 1364 | ||
| 1365 | def render_horz_labels(self): | |
| 1366 | series_length = len(self.labels[HORZ]) | |
| 1367 | step = float (self.plot_dimensions[HORZ] - (series_length + 1)*self.space)/len(self.labels[HORZ]) | |
| 1368 | x = self.borders[HORZ] + step/2 + self.space | |
| 1369 | next_x = 0 | |
| 1370 | ||
| 1371 | for item in self.labels[HORZ]: | |
| 1372 | self.context.set_source_rgba(*self.label_color) | |
| 1373 | width = self.context.text_extents(item)[2] | |
| 1374 | if x - width/2 > next_x and x - width/2 > self.borders[HORZ]: | |
| 1375 | self.context.move_to(x - width/2, self.dimensions[VERT] - self.borders[VERT] + self.max_value[HORZ] + 3) | |
| 1376 | self.context.show_text(item) | |
| 1377 | next_x = x + width/2 | |
| 1378 | x += step + self.space | |
| 1379 | ||
| 1380 | def render_vert_labels(self): | |
| 1381 | self.context.set_source_rgba(*self.label_color) | |
| 1382 | y = self.borders[VERT] + self.value_label | |
| 1383 | step = (self.dimensions[VERT] - 2*self.borders[VERT] - self.value_label)/(len(self.labels[VERT]) - 1) | |
| 1384 | self.labels[VERT].reverse() | |
| 1385 | for item in self.labels[VERT]: | |
| 1386 | width, height = self.context.text_extents(item)[2:4] | |
| 1387 | self.context.move_to(self.borders[HORZ] - width - 5, y + height/2) | |
| 1388 | self.context.show_text(item) | |
| 1389 | y += step | |
| 1390 | self.labels[VERT].reverse() | |
| 1391 | ||
| 1392 | def render_values(self): | |
| 1393 | self.context.set_source_rgba(*self.value_label_color) | |
| 1394 | self.context.set_font_size(self.font_size * 0.8) | |
| 1395 | if self.stack: | |
| 1396 | for i,group in enumerate(self.series): | |
| 1397 | value = sum(group.to_list()) | |
| 1398 | width = self.context.text_extents(str(value))[2] | |
| 1399 | x = self.borders[HORZ] + (i+0.5)*self.steps[HORZ] + (i+1)*self.space - width/2 | |
| 1400 | y = value*self.steps[VERT] + 2 | |
| 1401 | self.context.move_to(x, self.plot_top-y) | |
| 1402 | self.context.show_text(str(value)) | |
| 1403 | else: | |
| 1404 | for i,group in enumerate(self.series): | |
| 1405 | inner_step = self.steps[HORZ]/len(group) | |
| 1406 | x0 = self.borders[HORZ] + i*self.steps[HORZ] + (i+1)*self.space | |
| 1407 | for number,data in enumerate(group): | |
| 1408 | width = self.context.text_extents(str(data.content))[2] | |
| 1409 | self.context.move_to(x0 + 0.5*inner_step - width/2, self.plot_top - data.content*self.steps[VERT] - 2) | |
| 1410 | self.context.show_text(str(data.content)) | |
| 1411 | x0 += inner_step | |
| 1412 | ||
| 1413 | def render_plot(self): | |
| 1414 | if self.stack: | |
| 1415 | for i,group in enumerate(self.series): | |
| 1416 | x0 = self.borders[HORZ] + i*self.steps[HORZ] + (i+1)*self.space | |
| 1417 | y0 = 0 | |
| 1418 | for number,data in enumerate(group): | |
| 1419 | if self.series_colors[number][4] in ('linear','radial'): | |
| 1420 | linear = cairo.LinearGradient( x0, data.content*self.steps[VERT]/2, x0 + self.steps[HORZ], data.content*self.steps[VERT]/2 ) | |
| 1421 | color = self.series_colors[number] | |
| 1422 | linear.add_color_stop_rgba(0.0, 3.5*color[0]/5.0, 3.5*color[1]/5.0, 3.5*color[2]/5.0,1.0) | |
| 1423 | linear.add_color_stop_rgba(1.0, *color[:4]) | |
| 1424 | self.context.set_source(linear) | |
| 1425 | elif self.series_colors[number][4] == 'solid': | |
| 1426 | self.context.set_source_rgba(*self.series_colors[number][:4]) | |
| 1427 | if self.rounded_corners: | |
| 1428 | self.draw_rectangle(number, len(group), x0, self.plot_top - y0 - data.content*self.steps[VERT], x0 + self.steps[HORZ], self.plot_top - y0) | |
| 1429 | self.context.fill() | |
| 1430 | else: | |
| 1431 | self.context.rectangle(x0, self.plot_top - y0 - data.content*self.steps[VERT], self.steps[HORZ], data.content*self.steps[VERT]) | |
| 1432 | self.context.fill() | |
| 1433 | y0 += data.content*self.steps[VERT] | |
| 1434 | else: | |
| 1435 | for i,group in enumerate(self.series): | |
| 1436 | inner_step = self.steps[HORZ]/len(group) | |
| 1437 | y0 = self.borders[VERT] | |
| 1438 | x0 = self.borders[HORZ] + i*self.steps[HORZ] + (i+1)*self.space | |
| 1439 | for number,data in enumerate(group): | |
| 1440 | if self.series_colors[number][4] == 'linear': | |
| 1441 | linear = cairo.LinearGradient( x0, data.content*self.steps[VERT]/2, x0 + inner_step, data.content*self.steps[VERT]/2 ) | |
| 1442 | color = self.series_colors[number] | |
| 1443 | linear.add_color_stop_rgba(0.0, 3.5*color[0]/5.0, 3.5*color[1]/5.0, 3.5*color[2]/5.0,1.0) | |
| 1444 | linear.add_color_stop_rgba(1.0, *color[:4]) | |
| 1445 | self.context.set_source(linear) | |
| 1446 | elif self.series_colors[number][4] == 'solid': | |
| 1447 | self.context.set_source_rgba(*self.series_colors[number][:4]) | |
| 1448 | if self.rounded_corners and data.content != 0: | |
| 1449 | BarPlot.draw_round_rectangle(self, x0, self.plot_top - data.content*self.steps[VERT], x0+inner_step, self.plot_top) | |
| 1450 | self.context.fill() | |
| 1451 | elif self.three_dimension: | |
| 1452 | self.draw_3d_rectangle_front(x0, self.plot_top - data.content*self.steps[VERT], x0+inner_step, self.plot_top, 5) | |
| 1453 | self.context.fill() | |
| 1454 | self.draw_3d_rectangle_side(x0, self.plot_top - data.content*self.steps[VERT], x0+inner_step, self.plot_top, 5) | |
| 1455 | self.context.fill() | |
| 1456 | self.draw_3d_rectangle_top(x0, self.plot_top - data.content*self.steps[VERT], x0+inner_step, self.plot_top, 5) | |
| 1457 | self.context.fill() | |
| 1458 | else: | |
| 1459 | self.context.rectangle(x0, self.plot_top - data.content*self.steps[VERT], inner_step, data.content*self.steps[VERT]) | |
| 1460 | self.context.fill() | |
| 1461 | ||
| 1462 | x0 += inner_step | |
| 1463 | ||
| 1464 | class StreamChart(VerticalBarPlot): | |
| 1465 | def __init__(self, | |
| 1466 | surface = None, | |
| 1467 | data = None, | |
| 1468 | width = 640, | |
| 1469 | height = 480, | |
| 1470 | background = "white light_gray", | |
| 1471 | border = 0, | |
| 1472 | grid = False, | |
| 1473 | series_legend = None, | |
| 1474 | x_labels = None, | |
| 1475 | x_bounds = None, | |
| 1476 | y_bounds = None, | |
| 1477 | series_colors = None): | |
| 1478 | ||
| 1479 | VerticalBarPlot.__init__(self, surface, data, width, height, background, border, | |
| 1480 | False, grid, False, True, False, | |
| 1481 | None, x_labels, None, x_bounds, y_bounds, series_colors) | |
| 1482 | ||
| 1483 | def calc_steps(self): | |
| 1484 | other_dir = other_direction(self.main_dir) | |
| 1485 | self.series_amplitude = self.bounds[self.main_dir][1] - self.bounds[self.main_dir][0] | |
| 1486 | if self.series_amplitude: | |
| 1487 | self.steps[self.main_dir] = float(self.plot_dimensions[self.main_dir])/self.series_amplitude | |
| 1488 | else: | |
| 1489 | self.steps[self.main_dir] = 0.00 | |
| 1490 | series_length = len(self.data) | |
| 1491 | self.steps[other_dir] = float(self.plot_dimensions[other_dir])/series_length | |
| 1492 | ||
| 1493 | def render_legend(self): | |
| 1494 | pass | |
| 1495 | ||
| 1496 | def ground(self, index): | |
| 1497 | sum_values = sum(self.data[index]) | |
| 1498 | return -0.5*sum_values | |
| 1499 | ||
| 1500 | def calc_angles(self): | |
| 1501 | middle = self.plot_top - self.plot_dimensions[VERT]/2.0 | |
| 1502 | self.angles = [tuple([0.0 for x in range(len(self.data)+1)])] | |
| 1503 | for x_index in range(1, len(self.data)-1): | |
| 1504 | t = [] | |
| 1505 | x0 = self.borders[HORZ] + (0.5 + x_index - 1)*self.steps[HORZ] | |
| 1506 | x2 = self.borders[HORZ] + (0.5 + x_index + 1)*self.steps[HORZ] | |
| 1507 | y0 = middle - self.ground(x_index-1)*self.steps[VERT] | |
| 1508 | y2 = middle - self.ground(x_index+1)*self.steps[VERT] | |
| 1509 | t.append(math.atan(float(y0-y2)/(x0-x2))) | |
| 1510 | for data_index in range(len(self.data[x_index])): | |
| 1511 | x0 = self.borders[HORZ] + (0.5 + x_index - 1)*self.steps[HORZ] | |
| 1512 | x2 = self.borders[HORZ] + (0.5 + x_index + 1)*self.steps[HORZ] | |
| 1513 | y0 = middle - self.ground(x_index-1)*self.steps[VERT] - self.data[x_index-1][data_index]*self.steps[VERT] | |
| 1514 | y2 = middle - self.ground(x_index+1)*self.steps[VERT] - self.data[x_index+1][data_index]*self.steps[VERT] | |
| 1515 | ||
| 1516 | for i in range(0,data_index): | |
| 1517 | y0 -= self.data[x_index-1][i]*self.steps[VERT] | |
| 1518 | y2 -= self.data[x_index+1][i]*self.steps[VERT] | |
| 1519 | ||
| 1520 | if data_index == len(self.data[0])-1 and False: | |
| 1521 | self.context.set_source_rgba(0.0,0.0,0.0,0.3) | |
| 1522 | self.context.move_to(x0,y0) | |
| 1523 | self.context.line_to(x2,y2) | |
| 1524 | self.context.stroke() | |
| 1525 | self.context.arc(x0,y0,2,0,2*math.pi) | |
| 1526 | self.context.fill() | |
| 1527 | t.append(math.atan(float(y0-y2)/(x0-x2))) | |
| 1528 | self.angles.append(tuple(t)) | |
| 1529 | self.angles.append(tuple([0.0 for x in range(len(self.data)+1)])) | |
| 1530 | ||
| 1531 | def render_plot(self): | |
| 1532 | self.calc_angles() | |
| 1533 | middle = self.plot_top - self.plot_dimensions[VERT]/2.0 | |
| 1534 | p = 0.4*self.steps[HORZ] | |
| 1535 | for data_index in range(len(self.data[0])-1,-1,-1): | |
| 1536 | self.context.set_source_rgba(*self.series_colors[data_index][:4]) | |
| 1537 | ||
| 1538 | #draw the upper line | |
| 1539 | for x_index in range(len(self.data)-1) : | |
| 1540 | x1 = self.borders[HORZ] + (0.5 + x_index)*self.steps[HORZ] | |
| 1541 | y1 = middle - self.ground(x_index)*self.steps[VERT] - self.data[x_index][data_index]*self.steps[VERT] | |
| 1542 | x2 = self.borders[HORZ] + (0.5 + x_index + 1)*self.steps[HORZ] | |
| 1543 | y2 = middle - self.ground(x_index + 1)*self.steps[VERT] - self.data[x_index + 1][data_index]*self.steps[VERT] | |
| 1544 | ||
| 1545 | for i in range(0,data_index): | |
| 1546 | y1 -= self.data[x_index][i]*self.steps[VERT] | |
| 1547 | y2 -= self.data[x_index+1][i]*self.steps[VERT] | |
| 1548 | ||
| 1549 | if x_index == 0: | |
| 1550 | self.context.move_to(x1,y1) | |
| 1551 | ||
| 1552 | ang1 = self.angles[x_index][data_index+1] | |
| 1553 | ang2 = self.angles[x_index+1][data_index+1] + math.pi | |
| 1554 | self.context.curve_to(x1+p*math.cos(ang1),y1+p*math.sin(ang1), | |
| 1555 | x2+p*math.cos(ang2),y2+p*math.sin(ang2), | |
| 1556 | x2,y2) | |
| 1557 | ||
| 1558 | for x_index in range(len(self.data)-1,0,-1) : | |
| 1559 | x1 = self.borders[HORZ] + (0.5 + x_index)*self.steps[HORZ] | |
| 1560 | y1 = middle - self.ground(x_index)*self.steps[VERT] | |
| 1561 | x2 = self.borders[HORZ] + (0.5 + x_index - 1)*self.steps[HORZ] | |
| 1562 | y2 = middle - self.ground(x_index - 1)*self.steps[VERT] | |
| 1563 | ||
| 1564 | for i in range(0,data_index): | |
| 1565 | y1 -= self.data[x_index][i]*self.steps[VERT] | |
| 1566 | y2 -= self.data[x_index-1][i]*self.steps[VERT] | |
| 1567 | ||
| 1568 | if x_index == len(self.data)-1: | |
| 1569 | self.context.line_to(x1,y1+2) | |
| 1570 | ||
| 1571 | #revert angles by pi degrees to take the turn back | |
| 1572 | ang1 = self.angles[x_index][data_index] + math.pi | |
| 1573 | ang2 = self.angles[x_index-1][data_index] | |
| 1574 | self.context.curve_to(x1+p*math.cos(ang1),y1+p*math.sin(ang1), | |
| 1575 | x2+p*math.cos(ang2),y2+p*math.sin(ang2), | |
| 1576 | x2,y2+2) | |
| 1577 | ||
| 1578 | self.context.close_path() | |
| 1579 | self.context.fill() | |
| 1580 | ||
| 1581 | if False: | |
| 1582 | self.context.move_to(self.borders[HORZ] + 0.5*self.steps[HORZ], middle) | |
| 1583 | for x_index in range(len(self.data)-1) : | |
| 1584 | x1 = self.borders[HORZ] + (0.5 + x_index)*self.steps[HORZ] | |
| 1585 | y1 = middle - self.ground(x_index)*self.steps[VERT] - self.data[x_index][data_index]*self.steps[VERT] | |
| 1586 | x2 = self.borders[HORZ] + (0.5 + x_index + 1)*self.steps[HORZ] | |
| 1587 | y2 = middle - self.ground(x_index + 1)*self.steps[VERT] - self.data[x_index + 1][data_index]*self.steps[VERT] | |
| 1588 | ||
| 1589 | for i in range(0,data_index): | |
| 1590 | y1 -= self.data[x_index][i]*self.steps[VERT] | |
| 1591 | y2 -= self.data[x_index+1][i]*self.steps[VERT] | |
| 1592 | ||
| 1593 | ang1 = self.angles[x_index][data_index+1] | |
| 1594 | ang2 = self.angles[x_index+1][data_index+1] + math.pi | |
| 1595 | self.context.set_source_rgba(1.0,0.0,0.0) | |
| 1596 | self.context.arc(x1+p*math.cos(ang1),y1+p*math.sin(ang1),2,0,2*math.pi) | |
| 1597 | self.context.fill() | |
| 1598 | self.context.set_source_rgba(0.0,0.0,0.0) | |
| 1599 | self.context.arc(x2+p*math.cos(ang2),y2+p*math.sin(ang2),2,0,2*math.pi) | |
| 1600 | self.context.fill() | |
| 1601 | '''self.context.set_source_rgba(0.0,0.0,0.0,0.3) | |
| 1602 | self.context.arc(x2,y2,2,0,2*math.pi) | |
| 1603 | self.context.fill()''' | |
| 1604 | self.context.move_to(x1,y1) | |
| 1605 | self.context.line_to(x1+p*math.cos(ang1),y1+p*math.sin(ang1)) | |
| 1606 | self.context.stroke() | |
| 1607 | self.context.move_to(x2,y2) | |
| 1608 | self.context.line_to(x2+p*math.cos(ang2),y2+p*math.sin(ang2)) | |
| 1609 | self.context.stroke() | |
| 1610 | if False: | |
| 1611 | for x_index in range(len(self.data)-1,0,-1) : | |
| 1612 | x1 = self.borders[HORZ] + (0.5 + x_index)*self.steps[HORZ] | |
| 1613 | y1 = middle - self.ground(x_index)*self.steps[VERT] | |
| 1614 | x2 = self.borders[HORZ] + (0.5 + x_index - 1)*self.steps[HORZ] | |
| 1615 | y2 = middle - self.ground(x_index - 1)*self.steps[VERT] | |
| 1616 | ||
| 1617 | for i in range(0,data_index): | |
| 1618 | y1 -= self.data[x_index][i]*self.steps[VERT] | |
| 1619 | y2 -= self.data[x_index-1][i]*self.steps[VERT] | |
| 1620 | ||
| 1621 | #revert angles by pi degrees to take the turn back | |
| 1622 | ang1 = self.angles[x_index][data_index] + math.pi | |
| 1623 | ang2 = self.angles[x_index-1][data_index] | |
| 1624 | self.context.set_source_rgba(0.0,1.0,0.0) | |
| 1625 | self.context.arc(x1+p*math.cos(ang1),y1+p*math.sin(ang1),2,0,2*math.pi) | |
| 1626 | self.context.fill() | |
| 1627 | self.context.set_source_rgba(0.0,0.0,1.0) | |
| 1628 | self.context.arc(x2+p*math.cos(ang2),y2+p*math.sin(ang2),2,0,2*math.pi) | |
| 1629 | self.context.fill() | |
| 1630 | '''self.context.set_source_rgba(0.0,0.0,0.0,0.3) | |
| 1631 | self.context.arc(x2,y2,2,0,2*math.pi) | |
| 1632 | self.context.fill()''' | |
| 1633 | self.context.move_to(x1,y1) | |
| 1634 | self.context.line_to(x1+p*math.cos(ang1),y1+p*math.sin(ang1)) | |
| 1635 | self.context.stroke() | |
| 1636 | self.context.move_to(x2,y2) | |
| 1637 | self.context.line_to(x2+p*math.cos(ang2),y2+p*math.sin(ang2)) | |
| 1638 | self.context.stroke() | |
| 1639 | #break | |
| 1640 | ||
| 1641 | #self.context.arc(self.dimensions[HORZ]/2, self.dimensions[VERT]/2,50,0,3*math.pi/2) | |
| 1642 | #self.context.fill() | |
| 1643 | ||
| 1644 | ||
| 1645 | class PiePlot(Plot): | |
| 1646 | #TODO: Check the old cairoplot, graphs aren't matching | |
| 1647 | def __init__ (self, | |
| 1648 | surface = None, | |
| 1649 | data = None, | |
| 1650 | width = 640, | |
| 1651 | height = 480, | |
| 1652 | background = "white light_gray", | |
| 1653 | gradient = False, | |
| 1654 | shadow = False, | |
| 1655 | colors = None): | |
| 1656 | ||
| 1657 | Plot.__init__( self, surface, data, width, height, background, series_colors = colors ) | |
| 1658 | self.center = (self.dimensions[HORZ]/2, self.dimensions[VERT]/2) | |
| 1659 | self.total = sum( self.series.to_list() ) | |
| 1660 | self.radius = min(self.dimensions[HORZ]/3,self.dimensions[VERT]/3) | |
| 1661 | self.gradient = gradient | |
| 1662 | self.shadow = shadow | |
| 1663 | ||
| 1664 | def sort_function(x,y): | |
| 1665 | return x.content - y.content | |
| 1666 | ||
| 1667 | def load_series(self, data, x_labels=None, y_labels=None, series_colors=None): | |
| 1668 | Plot.load_series(self, data, x_labels, y_labels, series_colors) | |
| 1669 | # Already done inside series | |
| 1670 | #self.data = sorted(self.data) | |
| 1671 | ||
| 1672 | def draw_piece(self, angle, next_angle): | |
| 1673 | self.context.move_to(self.center[0],self.center[1]) | |
| 1674 | self.context.line_to(self.center[0] + self.radius*math.cos(angle), self.center[1] + self.radius*math.sin(angle)) | |
| 1675 | self.context.arc(self.center[0], self.center[1], self.radius, angle, next_angle) | |
| 1676 | self.context.line_to(self.center[0], self.center[1]) | |
| 1677 | self.context.close_path() | |
| 1678 | ||
| 1679 | def render(self): | |
| 1680 | self.render_background() | |
| 1681 | self.render_bounding_box() | |
| 1682 | if self.shadow: | |
| 1683 | self.render_shadow() | |
| 1684 | self.render_plot() | |
| 1685 | self.render_series_labels() | |
| 1686 | ||
| 1687 | def render_shadow(self): | |
| 1688 | horizontal_shift = 3 | |
| 1689 | vertical_shift = 3 | |
| 1690 | self.context.set_source_rgba(0, 0, 0, 0.5) | |
| 1691 | self.context.arc(self.center[0] + horizontal_shift, self.center[1] + vertical_shift, self.radius, 0, 2*math.pi) | |
| 1692 | self.context.fill() | |
| 1693 | ||
| 1694 | def render_series_labels(self): | |
| 1695 | angle = 0 | |
| 1696 | next_angle = 0 | |
| 1697 | x0,y0 = self.center | |
| 1698 | cr = self.context | |
| 1699 | for number,key in enumerate(self.series_labels): | |
| 1700 | # self.data[number] should be just a number | |
| 1701 | data = sum(self.series[number].to_list()) | |
| 1702 | ||
| 1703 | next_angle = angle + 2.0*math.pi*data/self.total | |
| 1704 | cr.set_source_rgba(*self.series_colors[number][:4]) | |
| 1705 | w = cr.text_extents(key)[2] | |
| 1706 | if (angle + next_angle)/2 < math.pi/2 or (angle + next_angle)/2 > 3*math.pi/2: | |
| 1707 | cr.move_to(x0 + (self.radius+10)*math.cos((angle+next_angle)/2), y0 + (self.radius+10)*math.sin((angle+next_angle)/2) ) | |
| 1708 | else: | |
| 1709 | cr.move_to(x0 + (self.radius+10)*math.cos((angle+next_angle)/2) - w, y0 + (self.radius+10)*math.sin((angle+next_angle)/2) ) | |
| 1710 | cr.show_text(key) | |
| 1711 | angle = next_angle | |
| 1712 | ||
| 1713 | def render_plot(self): | |
| 1714 | angle = 0 | |
| 1715 | next_angle = 0 | |
| 1716 | x0,y0 = self.center | |
| 1717 | cr = self.context | |
| 1718 | for number,group in enumerate(self.series): | |
| 1719 | # Group should be just a number | |
| 1720 | data = sum(group.to_list()) | |
| 1721 | next_angle = angle + 2.0*math.pi*data/self.total | |
| 1722 | if self.gradient or self.series_colors[number][4] in ('linear','radial'): | |
| 1723 | gradient_color = cairo.RadialGradient(self.center[0], self.center[1], 0, self.center[0], self.center[1], self.radius) | |
| 1724 | gradient_color.add_color_stop_rgba(0.3, *self.series_colors[number][:4]) | |
| 1725 | gradient_color.add_color_stop_rgba(1, self.series_colors[number][0]*0.7, | |
| 1726 | self.series_colors[number][1]*0.7, | |
| 1727 | self.series_colors[number][2]*0.7, | |
| 1728 | self.series_colors[number][3]) | |
| 1729 | cr.set_source(gradient_color) | |
| 1730 | else: | |
| 1731 | cr.set_source_rgba(*self.series_colors[number][:4]) | |
| 1732 | ||
| 1733 | self.draw_piece(angle, next_angle) | |
| 1734 | cr.fill() | |
| 1735 | ||
| 1736 | cr.set_source_rgba(1.0, 1.0, 1.0) | |
| 1737 | self.draw_piece(angle, next_angle) | |
| 1738 | cr.stroke() | |
| 1739 | ||
| 1740 | angle = next_angle | |
| 1741 | ||
| 1742 | class DonutPlot(PiePlot): | |
| 1743 | def __init__ (self, | |
| 1744 | surface = None, | |
| 1745 | data = None, | |
| 1746 | width = 640, | |
| 1747 | height = 480, | |
| 1748 | background = "white light_gray", | |
| 1749 | gradient = False, | |
| 1750 | shadow = False, | |
| 1751 | colors = None, | |
| 1752 | inner_radius=-1): | |
| 1753 | ||
| 1754 | Plot.__init__( self, surface, data, width, height, background, series_colors = colors ) | |
| 1755 | ||
| 1756 | self.center = ( self.dimensions[HORZ]/2, self.dimensions[VERT]/2 ) | |
| 1757 | self.total = sum( self.series.to_list() ) | |
| 1758 | self.radius = min( self.dimensions[HORZ]/3,self.dimensions[VERT]/3 ) | |
| 1759 | self.inner_radius = inner_radius*self.radius | |
| 1760 | ||
| 1761 | if inner_radius == -1: | |
| 1762 | self.inner_radius = self.radius/3 | |
| 1763 | ||
| 1764 | self.gradient = gradient | |
| 1765 | self.shadow = shadow | |
| 1766 | ||
| 1767 | def draw_piece(self, angle, next_angle): | |
| 1768 | self.context.move_to(self.center[0] + (self.inner_radius)*math.cos(angle), self.center[1] + (self.inner_radius)*math.sin(angle)) | |
| 1769 | self.context.line_to(self.center[0] + self.radius*math.cos(angle), self.center[1] + self.radius*math.sin(angle)) | |
| 1770 | self.context.arc(self.center[0], self.center[1], self.radius, angle, next_angle) | |
| 1771 | self.context.line_to(self.center[0] + (self.inner_radius)*math.cos(next_angle), self.center[1] + (self.inner_radius)*math.sin(next_angle)) | |
| 1772 | self.context.arc_negative(self.center[0], self.center[1], self.inner_radius, next_angle, angle) | |
| 1773 | self.context.close_path() | |
| 1774 | ||
| 1775 | def render_shadow(self): | |
| 1776 | horizontal_shift = 3 | |
| 1777 | vertical_shift = 3 | |
| 1778 | self.context.set_source_rgba(0, 0, 0, 0.5) | |
| 1779 | self.context.arc(self.center[0] + horizontal_shift, self.center[1] + vertical_shift, self.inner_radius, 0, 2*math.pi) | |
| 1780 | self.context.arc_negative(self.center[0] + horizontal_shift, self.center[1] + vertical_shift, self.radius, 0, -2*math.pi) | |
| 1781 | self.context.fill() | |
| 1782 | ||
| 1783 | class GanttChart (Plot) : | |
| 1784 | def __init__(self, | |
| 1785 | surface = None, | |
| 1786 | data = None, | |
| 1787 | width = 640, | |
| 1788 | height = 480, | |
| 1789 | x_labels = None, | |
| 1790 | y_labels = None, | |
| 1791 | colors = None): | |
| 1792 | self.bounds = {} | |
| 1793 | self.max_value = {} | |
| 1794 | Plot.__init__(self, surface, data, width, height, x_labels = x_labels, y_labels = y_labels, series_colors = colors) | |
| 1795 | ||
| 1796 | def load_series(self, data, x_labels=None, y_labels=None, series_colors=None): | |
| 1797 | Plot.load_series(self, data, x_labels, y_labels, series_colors) | |
| 1798 | self.calc_boundaries() | |
| 1799 | ||
| 1800 | def calc_boundaries(self): | |
| 1801 | self.bounds[HORZ] = (0,len(self.series)) | |
| 1802 | end_pos = max(self.series.to_list()) | |
| 1803 | ||
| 1804 | #for group in self.series: | |
| 1805 | # if hasattr(item, "__delitem__"): | |
| 1806 | # for sub_item in item: | |
| 1807 | # end_pos = max(sub_item) | |
| 1808 | # else: | |
| 1809 | # end_pos = max(item) | |
| 1810 | self.bounds[VERT] = (0,end_pos) | |
| 1811 | ||
| 1812 | def calc_extents(self, direction): | |
| 1813 | self.max_value[direction] = 0 | |
| 1814 | if self.labels[direction]: | |
| 1815 | self.max_value[direction] = max(self.context.text_extents(item)[2] for item in self.labels[direction]) | |
| 1816 | else: | |
| 1817 | self.max_value[direction] = self.context.text_extents( str(self.bounds[direction][1] + 1) )[2] | |
| 1818 | ||
| 1819 | def calc_horz_extents(self): | |
| 1820 | self.calc_extents(HORZ) | |
| 1821 | self.borders[HORZ] = 100 + self.max_value[HORZ] | |
| 1822 | ||
| 1823 | def calc_vert_extents(self): | |
| 1824 | self.calc_extents(VERT) | |
| 1825 | self.borders[VERT] = self.dimensions[VERT]/(self.bounds[HORZ][1] + 1) | |
| 1826 | ||
| 1827 | def calc_steps(self): | |
| 1828 | self.horizontal_step = (self.dimensions[HORZ] - self.borders[HORZ])/(len(self.labels[VERT])) | |
| 1829 | self.vertical_step = self.borders[VERT] | |
| 1830 | ||
| 1831 | def render(self): | |
| 1832 | self.calc_horz_extents() | |
| 1833 | self.calc_vert_extents() | |
| 1834 | self.calc_steps() | |
| 1835 | self.render_background() | |
| 1836 | ||
| 1837 | self.render_labels() | |
| 1838 | self.render_grid() | |
| 1839 | self.render_plot() | |
| 1840 | ||
| 1841 | def render_background(self): | |
| 1842 | cr = self.context | |
| 1843 | cr.set_source_rgba(255,255,255) | |
| 1844 | cr.rectangle(0,0,self.dimensions[HORZ], self.dimensions[VERT]) | |
| 1845 | cr.fill() | |
| 1846 | for number,group in enumerate(self.series): | |
| 1847 | linear = cairo.LinearGradient(self.dimensions[HORZ]/2, self.borders[VERT] + number*self.vertical_step, | |
| 1848 | self.dimensions[HORZ]/2, self.borders[VERT] + (number+1)*self.vertical_step) | |
| 1849 | linear.add_color_stop_rgba(0,1.0,1.0,1.0,1.0) | |
| 1850 | linear.add_color_stop_rgba(1.0,0.9,0.9,0.9,1.0) | |
| 1851 | cr.set_source(linear) | |
| 1852 | cr.rectangle(0,self.borders[VERT] + number*self.vertical_step,self.dimensions[HORZ],self.vertical_step) | |
| 1853 | cr.fill() | |
| 1854 | ||
| 1855 | def render_grid(self): | |
| 1856 | cr = self.context | |
| 1857 | cr.set_source_rgba(0.7, 0.7, 0.7) | |
| 1858 | cr.set_dash((1,0,0,0,0,0,1)) | |
| 1859 | cr.set_line_width(0.5) | |
| 1860 | for number,label in enumerate(self.labels[VERT]): | |
| 1861 | h = cr.text_extents(label)[3] | |
| 1862 | cr.move_to(self.borders[HORZ] + number*self.horizontal_step, self.vertical_step/2 + h) | |
| 1863 | cr.line_to(self.borders[HORZ] + number*self.horizontal_step, self.dimensions[VERT]) | |
| 1864 | cr.stroke() | |
| 1865 | ||
| 1866 | def render_labels(self): | |
| 1867 | self.context.set_font_size(0.02 * self.dimensions[HORZ]) | |
| 1868 | ||
| 1869 | self.render_horz_labels() | |
| 1870 | self.render_vert_labels() | |
| 1871 | ||
| 1872 | def render_horz_labels(self): | |
| 1873 | cr = self.context | |
| 1874 | labels = self.labels[HORZ] | |
| 1875 | if not labels: | |
| 1876 | labels = [str(i) for i in range(1, self.bounds[HORZ][1] + 1) ] | |
| 1877 | for number,label in enumerate(labels): | |
| 1878 | if label != None: | |
| 1879 | cr.set_source_rgba(0.5, 0.5, 0.5) | |
| 1880 | w,h = cr.text_extents(label)[2], cr.text_extents(label)[3] | |
| 1881 | cr.move_to(40,self.borders[VERT] + number*self.vertical_step + self.vertical_step/2 + h/2) | |
| 1882 | cr.show_text(label) | |
| 1883 | ||
| 1884 | def render_vert_labels(self): | |
| 1885 | cr = self.context | |
| 1886 | labels = self.labels[VERT] | |
| 1887 | if not labels: | |
| 1888 | labels = [str(i) for i in range(1, self.bounds[VERT][1] + 1) ] | |
| 1889 | for number,label in enumerate(labels): | |
| 1890 | w,h = cr.text_extents(label)[2], cr.text_extents(label)[3] | |
| 1891 | cr.move_to(self.borders[HORZ] + number*self.horizontal_step - w/2, self.vertical_step/2) | |
| 1892 | cr.show_text(label) | |
| 1893 | ||
| 1894 | def render_rectangle(self, x0, y0, x1, y1, color): | |
| 1895 | self.draw_shadow(x0, y0, x1, y1) | |
| 1896 | self.draw_rectangle(x0, y0, x1, y1, color) | |
| 1897 | ||
| 1898 | def draw_rectangular_shadow(self, gradient, x0, y0, w, h): | |
| 1899 | self.context.set_source(gradient) | |
| 1900 | self.context.rectangle(x0,y0,w,h) | |
| 1901 | self.context.fill() | |
| 1902 | ||
| 1903 | def draw_circular_shadow(self, x, y, radius, ang_start, ang_end, mult, shadow): | |
| 1904 | gradient = cairo.RadialGradient(x, y, 0, x, y, 2*radius) | |
| 1905 | gradient.add_color_stop_rgba(0, 0, 0, 0, shadow) | |
| 1906 | gradient.add_color_stop_rgba(1, 0, 0, 0, 0) | |
| 1907 | self.context.set_source(gradient) | |
| 1908 | self.context.move_to(x,y) | |
| 1909 | self.context.line_to(x + mult[0]*radius,y + mult[1]*radius) | |
| 1910 | self.context.arc(x, y, 8, ang_start, ang_end) | |
| 1911 | self.context.line_to(x,y) | |
| 1912 | self.context.close_path() | |
| 1913 | self.context.fill() | |
| 1914 | ||
| 1915 | def draw_rectangle(self, x0, y0, x1, y1, color): | |
| 1916 | cr = self.context | |
| 1917 | middle = (x0+x1)/2 | |
| 1918 | linear = cairo.LinearGradient(middle,y0,middle,y1) | |
| 1919 | linear.add_color_stop_rgba(0,3.5*color[0]/5.0, 3.5*color[1]/5.0, 3.5*color[2]/5.0,1.0) | |
| 1920 | linear.add_color_stop_rgba(1,*color[:4]) | |
| 1921 | cr.set_source(linear) | |
| 1922 | ||
| 1923 | cr.arc(x0+5, y0+5, 5, 0, 2*math.pi) | |
| 1924 | cr.arc(x1-5, y0+5, 5, 0, 2*math.pi) | |
| 1925 | cr.arc(x0+5, y1-5, 5, 0, 2*math.pi) | |
| 1926 | cr.arc(x1-5, y1-5, 5, 0, 2*math.pi) | |
| 1927 | cr.rectangle(x0+5,y0,x1-x0-10,y1-y0) | |
| 1928 | cr.rectangle(x0,y0+5,x1-x0,y1-y0-10) | |
| 1929 | cr.fill() | |
| 1930 | ||
| 1931 | def draw_shadow(self, x0, y0, x1, y1): | |
| 1932 | shadow = 0.4 | |
| 1933 | h_mid = (x0+x1)/2 | |
| 1934 | v_mid = (y0+y1)/2 | |
| 1935 | h_linear_1 = cairo.LinearGradient(h_mid,y0-4,h_mid,y0+4) | |
| 1936 | h_linear_2 = cairo.LinearGradient(h_mid,y1-4,h_mid,y1+4) | |
| 1937 | v_linear_1 = cairo.LinearGradient(x0-4,v_mid,x0+4,v_mid) | |
| 1938 | v_linear_2 = cairo.LinearGradient(x1-4,v_mid,x1+4,v_mid) | |
| 1939 | ||
| 1940 | h_linear_1.add_color_stop_rgba( 0, 0, 0, 0, 0) | |
| 1941 | h_linear_1.add_color_stop_rgba( 1, 0, 0, 0, shadow) | |
| 1942 | h_linear_2.add_color_stop_rgba( 0, 0, 0, 0, shadow) | |
| 1943 | h_linear_2.add_color_stop_rgba( 1, 0, 0, 0, 0) | |
| 1944 | v_linear_1.add_color_stop_rgba( 0, 0, 0, 0, 0) | |
| 1945 | v_linear_1.add_color_stop_rgba( 1, 0, 0, 0, shadow) | |
| 1946 | v_linear_2.add_color_stop_rgba( 0, 0, 0, 0, shadow) | |
| 1947 | v_linear_2.add_color_stop_rgba( 1, 0, 0, 0, 0) | |
| 1948 | ||
| 1949 | self.draw_rectangular_shadow(h_linear_1,x0+4,y0-4,x1-x0-8,8) | |
| 1950 | self.draw_rectangular_shadow(h_linear_2,x0+4,y1-4,x1-x0-8,8) | |
| 1951 | self.draw_rectangular_shadow(v_linear_1,x0-4,y0+4,8,y1-y0-8) | |
| 1952 | self.draw_rectangular_shadow(v_linear_2,x1-4,y0+4,8,y1-y0-8) | |
| 1953 | ||
| 1954 | self.draw_circular_shadow(x0+4, y0+4, 4, math.pi, 3*math.pi/2, (-1,0), shadow) | |
| 1955 | self.draw_circular_shadow(x1-4, y0+4, 4, 3*math.pi/2, 2*math.pi, (0,-1), shadow) | |
| 1956 | self.draw_circular_shadow(x0+4, y1-4, 4, math.pi/2, math.pi, (0,1), shadow) | |
| 1957 | self.draw_circular_shadow(x1-4, y1-4, 4, 0, math.pi/2, (1,0), shadow) | |
| 1958 | ||
| 1959 | def render_plot(self): | |
| 1960 | for index,group in enumerate(self.series): | |
| 1961 | for data in group: | |
| 1962 | self.render_rectangle(self.borders[HORZ] + data.content[0]*self.horizontal_step, | |
| 1963 | self.borders[VERT] + index*self.vertical_step + self.vertical_step/4.0, | |
| 1964 | self.borders[HORZ] + data.content[1]*self.horizontal_step, | |
| 1965 | self.borders[VERT] + index*self.vertical_step + 3.0*self.vertical_step/4.0, | |
| 1966 | self.series_colors[index]) | |
| 1967 | ||
| 1968 | # Function definition | |
| 1969 | ||
| 1970 | def scatter_plot(name, | |
| 1971 | data = None, | |
| 1972 | errorx = None, | |
| 1973 | errory = None, | |
| 1974 | width = 640, | |
| 1975 | height = 480, | |
| 1976 | background = "white light_gray", | |
| 1977 | border = 0, | |
| 1978 | axis = False, | |
| 1979 | dash = False, | |
| 1980 | discrete = False, | |
| 1981 | dots = False, | |
| 1982 | grid = False, | |
| 1983 | series_legend = False, | |
| 1984 | x_labels = None, | |
| 1985 | y_labels = None, | |
| 1986 | x_bounds = None, | |
| 1987 | y_bounds = None, | |
| 1988 | z_bounds = None, | |
| 1989 | x_title = None, | |
| 1990 | y_title = None, | |
| 1991 | series_colors = None, | |
| 1992 | circle_colors = None): | |
| 1993 | ||
| 1994 | ''' | |
| 1995 | - Function to plot scatter data. | |
| 1996 | ||
| 1997 | - Parameters | |
| 1998 | ||
| 1999 | data - The values to be ploted might be passed in a two basic: | |
| 2000 | list of points: [(0,0), (0,1), (0,2)] or [(0,0,1), (0,1,4), (0,2,1)] | |
| 2001 | lists of coordinates: [ [0,0,0] , [0,1,2] ] or [ [0,0,0] , [0,1,2] , [1,4,1] ] | |
| 2002 | Notice that these kinds of that can be grouped in order to form more complex data | |
| 2003 | using lists of lists or dictionaries; | |
| 2004 | series_colors - Define color values for each of the series | |
| 2005 | circle_colors - Define a lower and an upper bound for the circle colors for variable radius | |
| 2006 | (3 dimensions) series | |
| 2007 | ''' | |
| 2008 | ||
| 2009 | plot = ScatterPlot( name, data, errorx, errory, width, height, background, border, | |
| 2010 | axis, dash, discrete, dots, grid, series_legend, x_labels, y_labels, | |
| 2011 | x_bounds, y_bounds, z_bounds, x_title, y_title, series_colors, circle_colors ) | |
| 2012 | plot.render() | |
| 2013 | plot.commit() | |
| 2014 | ||
| 2015 | def dot_line_plot(name, | |
| 2016 | data, | |
| 2017 | width, | |
| 2018 | height, | |
| 2019 | background = "white light_gray", | |
| 2020 | border = 0, | |
| 2021 | axis = False, | |
| 2022 | dash = False, | |
| 2023 | dots = False, | |
| 2024 | grid = False, | |
| 2025 | series_legend = False, | |
| 2026 | x_labels = None, | |
| 2027 | y_labels = None, | |
| 2028 | x_bounds = None, | |
| 2029 | y_bounds = None, | |
| 2030 | x_title = None, | |
| 2031 | y_title = None, | |
| 2032 | series_colors = None): | |
| 2033 | ''' | |
| 2034 | - Function to plot graphics using dots and lines. | |
| 2035 | ||
| 2036 | dot_line_plot (name, data, width, height, background = "white light_gray", border = 0, axis = False, grid = False, x_labels = None, y_labels = None, x_bounds = None, y_bounds = None) | |
| 2037 | ||
| 2038 | - Parameters | |
| 2039 | ||
| 2040 | name - Name of the desired output file, no need to input the .svg as it will be added at runtim; | |
| 2041 | data - The list, list of lists or dictionary holding the data to be plotted; | |
| 2042 | width, height - Dimensions of the output image; | |
| 2043 | background - A 3 element tuple representing the rgb color expected for the background or a new cairo linear gradient. | |
| 2044 | If left None, a gray to white gradient will be generated; | |
| 2045 | border - Distance in pixels of a square border into which the graphics will be drawn; | |
| 2046 | axis - Whether or not the axis are to be drawn; | |
| 2047 | dash - Boolean or a list or a dictionary of booleans indicating whether or not the associated series should be drawn in dashed mode; | |
| 2048 | dots - Whether or not dots should be drawn on each point; | |
| 2049 | grid - Whether or not the gris is to be drawn; | |
| 2050 | series_legend - Whether or not the legend is to be drawn; | |
| 2051 | x_labels, y_labels - lists of strings containing the horizontal and vertical labels for the axis; | |
| 2052 | x_bounds, y_bounds - tuples containing the lower and upper value bounds for the data to be plotted; | |
| 2053 | x_title - Whether or not to plot a title over the x axis. | |
| 2054 | y_title - Whether or not to plot a title over the y axis. | |
| 2055 | ||
| 2056 | - Examples of use | |
| 2057 | ||
| 2058 | data = [0, 1, 3, 8, 9, 0, 10, 10, 2, 1] | |
| 2059 | CairoPlot.dot_line_plot('teste', data, 400, 300) | |
| 2060 | ||
| 2061 | data = { "john" : [10, 10, 10, 10, 30], "mary" : [0, 0, 3, 5, 15], "philip" : [13, 32, 11, 25, 2] } | |
| 2062 | x_labels = ["jan/2008", "feb/2008", "mar/2008", "apr/2008", "may/2008" ] | |
| 2063 | CairoPlot.dot_line_plot( 'test', data, 400, 300, axis = True, grid = True, | |
| 2064 | series_legend = True, x_labels = x_labels ) | |
| 2065 | ''' | |
| 2066 | plot = DotLinePlot( name, data, width, height, background, border, | |
| 2067 | axis, dash, dots, grid, series_legend, x_labels, y_labels, | |
| 2068 | x_bounds, y_bounds, x_title, y_title, series_colors ) | |
| 2069 | plot.render() | |
| 2070 | plot.commit() | |
| 2071 | ||
| 2072 | def function_plot(name, | |
| 2073 | data, | |
| 2074 | width, | |
| 2075 | height, | |
| 2076 | background = "white light_gray", | |
| 2077 | border = 0, | |
| 2078 | axis = True, | |
| 2079 | dots = False, | |
| 2080 | discrete = False, | |
| 2081 | grid = False, | |
| 2082 | series_legend = False, | |
| 2083 | x_labels = None, | |
| 2084 | y_labels = None, | |
| 2085 | x_bounds = None, | |
| 2086 | y_bounds = None, | |
| 2087 | x_title = None, | |
| 2088 | y_title = None, | |
| 2089 | series_colors = None, | |
| 2090 | step = 1): | |
| 2091 | ||
| 2092 | ''' | |
| 2093 | - Function to plot functions. | |
| 2094 | ||
| 2095 | function_plot(name, data, width, height, background = "white light_gray", border = 0, axis = True, grid = False, dots = False, x_labels = None, y_labels = None, x_bounds = None, y_bounds = None, step = 1, discrete = False) | |
| 2096 | ||
| 2097 | - Parameters | |
| 2098 | ||
| 2099 | name - Name of the desired output file, no need to input the .svg as it will be added at runtim; | |
| 2100 | data - The list, list of lists or dictionary holding the data to be plotted; | |
| 2101 | width, height - Dimensions of the output image; | |
| 2102 | background - A 3 element tuple representing the rgb color expected for the background or a new cairo linear gradient. | |
| 2103 | If left None, a gray to white gradient will be generated; | |
| 2104 | border - Distance in pixels of a square border into which the graphics will be drawn; | |
| 2105 | axis - Whether or not the axis are to be drawn; | |
| 2106 | grid - Whether or not the gris is to be drawn; | |
| 2107 | dots - Whether or not dots should be shown at each point; | |
| 2108 | x_labels, y_labels - lists of strings containing the horizontal and vertical labels for the axis; | |
| 2109 | x_bounds, y_bounds - tuples containing the lower and upper value bounds for the data to be plotted; | |
| 2110 | step - the horizontal distance from one point to the other. The smaller, the smoother the curve will be; | |
| 2111 | discrete - whether or not the function should be plotted in discrete format. | |
| 2112 | ||
| 2113 | - Example of use | |
| 2114 | ||
| 2115 | data = lambda x : x**2 | |
| 2116 | CairoPlot.function_plot('function4', data, 400, 300, grid = True, x_bounds=(-10,10), step = 0.1) | |
| 2117 | ''' | |
| 2118 | ||
| 2119 | plot = FunctionPlot( name, data, width, height, background, border, | |
| 2120 | axis, discrete, dots, grid, series_legend, x_labels, y_labels, | |
| 2121 | x_bounds, y_bounds, x_title, y_title, series_colors, step ) | |
| 2122 | plot.render() | |
| 2123 | plot.commit() | |
| 2124 | ||
| 2125 | def pie_plot( name, data, width, height, background = "white light_gray", gradient = False, shadow = False, colors = None ): | |
| 2126 | ||
| 2127 | ''' | |
| 2128 | - Function to plot pie graphics. | |
| 2129 | ||
| 2130 | pie_plot(name, data, width, height, background = "white light_gray", gradient = False, colors = None) | |
| 2131 | ||
| 2132 | - Parameters | |
| 2133 | ||
| 2134 | name - Name of the desired output file, no need to input the .svg as it will be added at runtim; | |
| 2135 | data - The list, list of lists or dictionary holding the data to be plotted; | |
| 2136 | width, height - Dimensions of the output image; | |
| 2137 | background - A 3 element tuple representing the rgb color expected for the background or a new cairo linear gradient. | |
| 2138 | If left None, a gray to white gradient will be generated; | |
| 2139 | gradient - Whether or not the pie color will be painted with a gradient; | |
| 2140 | shadow - Whether or not there will be a shadow behind the pie; | |
| 2141 | colors - List of slices colors. | |
| 2142 | ||
| 2143 | - Example of use | |
| 2144 | ||
| 2145 | teste_data = {"john" : 123, "mary" : 489, "philip" : 890 , "suzy" : 235} | |
| 2146 | CairoPlot.pie_plot("pie_teste", teste_data, 500, 500) | |
| 2147 | ''' | |
| 2148 | ||
| 2149 | plot = PiePlot( name, data, width, height, background, gradient, shadow, colors ) | |
| 2150 | plot.render() | |
| 2151 | plot.commit() | |
| 2152 | ||
| 2153 | def donut_plot(name, data, width, height, background = "white light_gray", gradient = False, shadow = False, colors = None, inner_radius = -1): | |
| 2154 | ||
| 2155 | ''' | |
| 2156 | - Function to plot donut graphics. | |
| 2157 | ||
| 2158 | donut_plot(name, data, width, height, background = "white light_gray", gradient = False, inner_radius = -1) | |
| 2159 | ||
| 2160 | - Parameters | |
| 2161 | ||
| 2162 | name - Name of the desired output file, no need to input the .svg as it will be added at runtim; | |
| 2163 | data - The list, list of lists or dictionary holding the data to be plotted; | |
| 2164 | width, height - Dimensions of the output image; | |
| 2165 | background - A 3 element tuple representing the rgb color expected for the background or a new cairo linear gradient. | |
| 2166 | If left None, a gray to white gradient will be generated; | |
| 2167 | shadow - Whether or not there will be a shadow behind the donut; | |
| 2168 | gradient - Whether or not the donut color will be painted with a gradient; | |
| 2169 | colors - List of slices colors; | |
| 2170 | inner_radius - The radius of the donut's inner circle. | |
| 2171 | ||
| 2172 | - Example of use | |
| 2173 | ||
| 2174 | teste_data = {"john" : 123, "mary" : 489, "philip" : 890 , "suzy" : 235} | |
| 2175 | CairoPlot.donut_plot("donut_teste", teste_data, 500, 500) | |
| 2176 | ''' | |
| 2177 | ||
| 2178 | plot = DonutPlot(name, data, width, height, background, gradient, shadow, colors, inner_radius) | |
| 2179 | plot.render() | |
| 2180 | plot.commit() | |
| 2181 | ||
| 2182 | def gantt_chart(name, pieces, width, height, x_labels, y_labels, colors): | |
| 2183 | ||
| 2184 | ''' | |
| 2185 | - Function to generate Gantt Charts. | |
| 2186 | ||
| 2187 | gantt_chart(name, pieces, width, height, x_labels, y_labels, colors): | |
| 2188 | ||
| 2189 | - Parameters | |
| 2190 | ||
| 2191 | name - Name of the desired output file, no need to input the .svg as it will be added at runtim; | |
| 2192 | pieces - A list defining the spaces to be drawn. The user must pass, for each line, the index of its start and the index of its end. If a line must have two or more spaces, they must be passed inside a list; | |
| 2193 | width, height - Dimensions of the output image; | |
| 2194 | x_labels - A list of names for each of the vertical lines; | |
| 2195 | y_labels - A list of names for each of the horizontal spaces; | |
| 2196 | colors - List containing the colors expected for each of the horizontal spaces | |
| 2197 | ||
| 2198 | - Example of use | |
| 2199 | ||
| 2200 | pieces = [ (0.5,5.5) , [(0,4),(6,8)] , (5.5,7) , (7,8)] | |
| 2201 | x_labels = [ 'teste01', 'teste02', 'teste03', 'teste04'] | |
| 2202 | y_labels = [ '0001', '0002', '0003', '0004', '0005', '0006', '0007', '0008', '0009', '0010' ] | |
| 2203 | colors = [ (1.0, 0.0, 0.0), (1.0, 0.7, 0.0), (1.0, 1.0, 0.0), (0.0, 1.0, 0.0) ] | |
| 2204 | CairoPlot.gantt_chart('gantt_teste', pieces, 600, 300, x_labels, y_labels, colors) | |
| 2205 | ''' | |
| 2206 | ||
| 2207 | plot = GanttChart(name, pieces, width, height, x_labels, y_labels, colors) | |
| 2208 | plot.render() | |
| 2209 | plot.commit() | |
| 2210 | ||
| 2211 | def vertical_bar_plot(name, | |
| 2212 | data, | |
| 2213 | width, | |
| 2214 | height, | |
| 2215 | background = "white light_gray", | |
| 2216 | border = 0, | |
| 2217 | display_values = False, | |
| 2218 | grid = False, | |
| 2219 | rounded_corners = False, | |
| 2220 | stack = False, | |
| 2221 | three_dimension = False, | |
| 2222 | series_labels = None, | |
| 2223 | x_labels = None, | |
| 2224 | y_labels = None, | |
| 2225 | x_bounds = None, | |
| 2226 | y_bounds = None, | |
| 2227 | colors = None): | |
| 2228 | #TODO: Fix docstring for vertical_bar_plot | |
| 2229 | ''' | |
| 2230 | - Function to generate vertical Bar Plot Charts. | |
| 2231 | ||
| 2232 | bar_plot(name, data, width, height, background, border, grid, rounded_corners, three_dimension, | |
| 2233 | x_labels, y_labels, x_bounds, y_bounds, colors): | |
| 2234 | ||
| 2235 | - Parameters | |
| 2236 | ||
| 2237 | name - Name of the desired output file, no need to input the .svg as it will be added at runtime; | |
| 2238 | data - The list, list of lists or dictionary holding the data to be plotted; | |
| 2239 | width, height - Dimensions of the output image; | |
| 2240 | background - A 3 element tuple representing the rgb color expected for the background or a new cairo linear gradient. | |
| 2241 | If left None, a gray to white gradient will be generated; | |
| 2242 | border - Distance in pixels of a square border into which the graphics will be drawn; | |
| 2243 | grid - Whether or not the gris is to be drawn; | |
| 2244 | rounded_corners - Whether or not the bars should have rounded corners; | |
| 2245 | three_dimension - Whether or not the bars should be drawn in pseudo 3D; | |
| 2246 | x_labels, y_labels - lists of strings containing the horizontal and vertical labels for the axis; | |
| 2247 | x_bounds, y_bounds - tuples containing the lower and upper value bounds for the data to be plotted; | |
| 2248 | colors - List containing the colors expected for each of the bars. | |
| 2249 | ||
| 2250 | - Example of use | |
| 2251 | ||
| 2252 | data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] | |
| 2253 | CairoPlot.vertical_bar_plot ('bar2', data, 400, 300, border = 20, grid = True, rounded_corners = False) | |
| 2254 | ''' | |
| 2255 | ||
| 2256 | plot = VerticalBarPlot(name, data, width, height, background, border, | |
| 2257 | display_values, grid, rounded_corners, stack, three_dimension, | |
| 2258 | series_labels, x_labels, y_labels, x_bounds, y_bounds, colors) | |
| 2259 | plot.render() | |
| 2260 | plot.commit() | |
| 2261 | ||
| 2262 | def horizontal_bar_plot(name, | |
| 2263 | data, | |
| 2264 | width, | |
| 2265 | height, | |
| 2266 | background = "white light_gray", | |
| 2267 | border = 0, | |
| 2268 | display_values = False, | |
| 2269 | grid = False, | |
| 2270 | rounded_corners = False, | |
| 2271 | stack = False, | |
| 2272 | three_dimension = False, | |
| 2273 | series_labels = None, | |
| 2274 | x_labels = None, | |
| 2275 | y_labels = None, | |
| 2276 | x_bounds = None, | |
| 2277 | y_bounds = None, | |
| 2278 | colors = None): | |
| 2279 | ||
| 2280 | #TODO: Fix docstring for horizontal_bar_plot | |
| 2281 | ''' | |
| 2282 | - Function to generate Horizontal Bar Plot Charts. | |
| 2283 | ||
| 2284 | bar_plot(name, data, width, height, background, border, grid, rounded_corners, three_dimension, | |
| 2285 | x_labels, y_labels, x_bounds, y_bounds, colors): | |
| 2286 | ||
| 2287 | - Parameters | |
| 2288 | ||
| 2289 | name - Name of the desired output file, no need to input the .svg as it will be added at runtime; | |
| 2290 | data - The list, list of lists or dictionary holding the data to be plotted; | |
| 2291 | width, height - Dimensions of the output image; | |
| 2292 | background - A 3 element tuple representing the rgb color expected for the background or a new cairo linear gradient. | |
| 2293 | If left None, a gray to white gradient will be generated; | |
| 2294 | border - Distance in pixels of a square border into which the graphics will be drawn; | |
| 2295 | grid - Whether or not the gris is to be drawn; | |
| 2296 | rounded_corners - Whether or not the bars should have rounded corners; | |
| 2297 | three_dimension - Whether or not the bars should be drawn in pseudo 3D; | |
| 2298 | x_labels, y_labels - lists of strings containing the horizontal and vertical labels for the axis; | |
| 2299 | x_bounds, y_bounds - tuples containing the lower and upper value bounds for the data to be plotted; | |
| 2300 | colors - List containing the colors expected for each of the bars. | |
| 2301 | ||
| 2302 | - Example of use | |
| 2303 | ||
| 2304 | data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] | |
| 2305 | CairoPlot.bar_plot ('bar2', data, 400, 300, border = 20, grid = True, rounded_corners = False) | |
| 2306 | ''' | |
| 2307 | ||
| 2308 | plot = HorizontalBarPlot(name, data, width, height, background, border, | |
| 2309 | display_values, grid, rounded_corners, stack, three_dimension, | |
| 2310 | series_labels, x_labels, y_labels, x_bounds, y_bounds, colors) | |
| 2311 | plot.render() | |
| 2312 | plot.commit() | |
| 2313 | ||
| 2314 | def stream_chart(name, | |
| 2315 | data, | |
| 2316 | width, | |
| 2317 | height, | |
| 2318 | background = "white light_gray", | |
| 2319 | border = 0, | |
| 2320 | grid = False, | |
| 2321 | series_legend = None, | |
| 2322 | x_labels = None, | |
| 2323 | x_bounds = None, | |
| 2324 | y_bounds = None, | |
| 2325 | colors = None): | |
| 2326 | ||
| 2327 | #TODO: Fix docstring for horizontal_bar_plot | |
| 2328 | plot = StreamChart(name, data, width, height, background, border, | |
| 2329 | grid, series_legend, x_labels, x_bounds, y_bounds, colors) | |
| 2330 | plot.render() | |
| 2331 | plot.commit() | |
| 2332 | ||
| 2333 | ||
| 2334 | if __name__ == "__main__": | |
| 2335 | import tests | |
| 2336 | import seriestests |