mirror of https://github.com/Kozea/pygal.git
qins
8 years ago
6 changed files with 682 additions and 1 deletions
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|
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# -*- coding: utf-8 -*- |
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# This file is part of pygal |
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# |
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# A python svg graph plotting library |
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# Copyright © 2012-2016 Kozea |
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# |
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# This library is free software: you can redistribute it and/or modify it under |
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# the terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 3 of the License, or (at your option) any |
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# later version. |
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# |
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# This library is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with pygal. If not, see <http://www.gnu.org/licenses/>. |
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|
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""" |
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Line chart: Display series of data as markers (dots) |
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connected by straight segments |
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""" |
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from __future__ import division |
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from pygal.graph.graph import Graph |
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from pygal.util import alter, cached_property, decorate |
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class Line(Graph): |
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"""Line graph class""" |
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def __init__(self, *args, **kwargs): |
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"""Set _self_close as False, it's True for Radar like Line""" |
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self._self_close = False |
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super(Line, self).__init__(*args, **kwargs) |
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@cached_property |
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def _values(self): |
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"""Getter for series values (flattened)""" |
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return [ |
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val[1] |
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for serie in self.series |
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for val in (serie.interpolated |
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if self.interpolate else serie.points) |
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if val[1] is not None and (not self.logarithmic or val[1] > 0)] |
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|
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@cached_property |
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def _secondary_values(self): |
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"""Getter for secondary series values (flattened)""" |
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return [ |
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val[1] |
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for serie in self.secondary_series |
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for val in (serie.interpolated |
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if self.interpolate else serie.points) |
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if val[1] is not None and (not self.logarithmic or val[1] > 0)] |
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|
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def _fill(self, values): |
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"""Add extra values to fill the line""" |
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zero = self.view.y(min(max(self.zero, self._box.ymin), self._box.ymax)) |
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# Check to see if the data has been padded with "none's" |
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# Fill doesn't work correctly otherwise |
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end = len(values) - 1 |
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while end > 0: |
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x, y = values[end] |
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if self.missing_value_fill_truncation == "either": |
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if x is not None and y is not None: |
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break |
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elif self.missing_value_fill_truncation == "x": |
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if x is not None: |
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break |
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elif self.missing_value_fill_truncation == "y": |
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if y is not None: |
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break |
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else: |
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raise ValueError( |
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"Invalid value ({}) for config key " |
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"'missing_value_fill_truncation';" |
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" Use 'x', 'y' or 'either'".format( |
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self.missing_value_fill_truncation)) |
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end -= 1 |
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return ([(values[0][0], zero)] + |
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values + |
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[(values[end][0], zero)]) |
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def line(self, serie, rescale=False): |
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"""Draw the line serie""" |
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serie_node = self.svg.serie(serie) |
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if rescale and self.secondary_series: |
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points = self._rescale(serie.points) |
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else: |
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points = serie.points |
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view_values = list(map(self.view, points)) |
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if serie.show_dots: |
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for i, (x, y) in enumerate(view_values): |
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if None in (x, y): |
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continue |
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|
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#modified |
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if self.logarithmic: |
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if points[i][1] == None or points[i][1] <= 0: |
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continue |
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|
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if (serie.show_only_major_dots and |
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self.x_labels and i < len(self.x_labels) and |
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self.x_labels[i] not in self._x_labels_major): |
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continue |
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metadata = serie.metadata.get(i) |
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classes = [] |
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if x > self.view.width / 2: |
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classes.append('left') |
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if y > self.view.height / 2: |
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classes.append('top') |
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classes = ' '.join(classes) |
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self._confidence_interval( |
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serie_node['overlay'], x, y, serie.values[i], metadata) |
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dots = decorate( |
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self.svg, |
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self.svg.node(serie_node['overlay'], class_="dots"), |
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metadata) |
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val = self._format(serie, i) |
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alter(self.svg.transposable_node( |
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dots, 'circle', cx=x, cy=y, r=serie.dots_size, |
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class_='dot reactive tooltip-trigger'), metadata) |
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self._tooltip_data( |
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dots, val, x, y, |
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xlabel=self._get_x_label(i)) |
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self._static_value( |
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serie_node, val, |
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x + self.style.value_font_size, |
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y + self.style.value_font_size, |
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metadata) |
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if serie.stroke: |
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if self.interpolate: |
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points = serie.interpolated |
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if rescale and self.secondary_series: |
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points = self._rescale(points) |
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view_values = list(map(self.view, points)) |
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if serie.fill: |
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view_values = self._fill(view_values) |
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if serie.allow_interruptions: |
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# view_values are in form [(x1, y1), (x2, y2)]. We |
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# need to split that into multiple sequences if a |
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# None is present here |
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sequences = [] |
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cur_sequence = [] |
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for x, y in view_values: |
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if y is None and len(cur_sequence) > 0: |
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# emit current subsequence |
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sequences.append(cur_sequence) |
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cur_sequence = [] |
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elif y is None: # just discard |
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continue |
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else: |
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cur_sequence.append((x, y)) # append the element |
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if len(cur_sequence) > 0: # emit last possible sequence |
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sequences.append(cur_sequence) |
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else: |
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# plain vanilla rendering |
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sequences = [view_values] |
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#modified |
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if self.logarithmic: |
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for seq in sequences: |
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for ele in seq[::-1]: |
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if points[seq.index(ele)][1]==None or points[seq.index(ele)][1] <= 0: |
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del seq[seq.index(ele)] |
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for seq in sequences: |
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self.svg.line( |
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serie_node['plot'], seq, close=self._self_close, |
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class_='line reactive' + |
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(' nofill' if not serie.fill else '')) |
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def _compute(self): |
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"""Compute y min and max and y scale and set labels""" |
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# X Labels |
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if self.horizontal: |
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self._x_pos = [ |
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x / (self._len - 1) for x in range(self._len) |
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][::-1] if self._len != 1 else [.5] # Center if only one value |
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else: |
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self._x_pos = [ |
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x / (self._len - 1) for x in range(self._len) |
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] if self._len != 1 else [.5] # Center if only one value |
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self._points(self._x_pos) |
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if self.include_x_axis: |
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# Y Label |
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self._box.ymin = min(self._min or 0, 0) |
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self._box.ymax = max(self._max or 0, 0) |
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else: |
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self._box.ymin = self._min |
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self._box.ymax = self._max |
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def _plot(self): |
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"""Plot the serie lines and secondary serie lines""" |
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for serie in self.series: |
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self.line(serie) |
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for serie in self.secondary_series: |
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self.line(serie, True) |
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@ -0,0 +1,15 @@
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# This file is test file for NoneMaxSolved |
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# I have modified the line.py and passed other test |
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# This test is for us to test whether the none value |
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# in the Log graph will be max or not (issue #309) |
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from __future__ import division |
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from pygal import Line |
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from pygal.test.utils import texts |
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from math import cos, sin |
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chart = Line(title='test', x_label_rotation=90, human_readable=True, logarithmic=True) |
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chart.add('test 1', [None, None, None, None, -38, 48, None, 4422, 34443, 345586, 40003452, 1235533, 2235533]) |
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chart.add('test 2', [ 1, 7, 19, 30, 40, 20, 38, 283, 2937, 29374, 20399, 293874, 3947]) |
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q = line.render_pyquery() |
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assert len(q(".dots")) == 20 |
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@ -0,0 +1,15 @@
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# This file is test file for NoneMaxSolved |
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# I have modified the line.py and passed other test |
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# This test is for us to test whether the none value |
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# in the Log graph will be max or not (issue #309) |
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from __future__ import division |
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from pygal import Line |
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from pygal.test.utils import texts |
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from math import cos, sin |
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chart = Line(title='test', x_label_rotation=90, human_readable=True, logarithmic=True) |
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chart.add('test 1', [None, None, None, None, -38, 48, None, 4422, 34443, 345586, 40003452, 1235533, 2235533]) |
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chart.add('test 2', [ 1, 7, 19, 30, 40, 20, 38, 283, 2937, 29374, 20399, 293874, 3947]) |
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chart.render_to_file("NoneMaxSolved.svg") |
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@ -0,0 +1,423 @@
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# -*- coding: utf-8 -*- |
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# This file is part of pygal |
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# |
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# A python svg graph plotting library |
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# Copyright © 2012-2016 Kozea |
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# |
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# This library is free software: you can redistribute it and/or modify it under |
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# the terms of the GNU Lesser General Public License as published by the Free |
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# Software Foundation, either version 3 of the License, or (at your option) any |
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# later version. |
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# |
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# This library is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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# details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with pygal. If not, see <http://www.gnu.org/licenses/>. |
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|
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"""Projection and bounding helpers""" |
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from __future__ import division |
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from math import cos, log10, pi, sin |
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class Margin(object): |
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"""Class reprensenting a margin (top, right, left, bottom)""" |
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def __init__(self, top, right, bottom, left): |
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"""Create the margin object from the top, right, left, bottom margin""" |
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self.top = top |
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self.right = right |
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self.bottom = bottom |
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self.left = left |
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@property |
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def x(self): |
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"""Helper for total x margin""" |
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return self.left + self.right |
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@property |
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def y(self): |
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"""Helper for total y margin""" |
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return self.top + self.bottom |
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class Box(object): |
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"""Chart boundings""" |
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margin = .02 |
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def __init__(self, xmin=0, ymin=0, xmax=1, ymax=1): |
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""" |
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Create the chart bounds with min max horizontal |
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and vertical values |
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""" |
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self._xmin = xmin |
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self._ymin = ymin |
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self._xmax = xmax |
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self._ymax = ymax |
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def set_polar_box(self, rmin=0, rmax=1, tmin=0, tmax=2 * pi): |
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"""Helper for polar charts""" |
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self._rmin = rmin |
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self._rmax = rmax |
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self._tmin = tmin |
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self._tmax = tmax |
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self.xmin = self.ymin = rmin - rmax |
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self.xmax = self.ymax = rmax - rmin |
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@property |
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def xmin(self): |
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"""X minimum getter""" |
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return self._xmin |
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@xmin.setter |
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def xmin(self, value): |
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"""X minimum setter""" |
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if value is not None: |
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self._xmin = value |
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@property |
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def ymin(self): |
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"""Y minimum getter""" |
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return self._ymin |
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@ymin.setter |
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def ymin(self, value): |
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"""Y minimum setter""" |
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if value is not None: |
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self._ymin = value |
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@property |
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def xmax(self): |
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"""X maximum getter""" |
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return self._xmax |
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@xmax.setter |
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def xmax(self, value): |
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"""X maximum setter""" |
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if value is not None: |
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self._xmax = value |
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@property |
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def ymax(self): |
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"""Y maximum getter""" |
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return self._ymax |
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@ymax.setter |
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def ymax(self, value): |
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"""Y maximum setter""" |
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if value or self.ymin: |
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self._ymax = value |
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@property |
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def width(self): |
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"""Helper for box width""" |
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return self.xmax - self.xmin |
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@property |
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def height(self): |
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"""Helper for box height""" |
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return self.ymax - self.ymin |
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def swap(self): |
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"""Return the box (for horizontal graphs)""" |
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self.xmin, self.ymin = self.ymin, self.xmin |
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self.xmax, self.ymax = self.ymax, self.xmax |
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def fix(self, with_margin=True): |
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"""Correct box when no values and take margin in account""" |
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if not self.width: |
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self.xmax = self.xmin + 1 |
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if not self.height: |
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self.ymin /= 2 |
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self.ymax += self.ymin |
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xmargin = self.margin * self.width |
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self.xmin -= xmargin |
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self.xmax += xmargin |
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if with_margin: |
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ymargin = self.margin * self.height |
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self.ymin -= ymargin |
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self.ymax += ymargin |
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class View(object): |
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"""Projection base class""" |
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def __init__(self, width, height, box): |
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"""Create the view with a width an height and a box bounds""" |
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self.width = width |
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self.height = height |
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self.box = box |
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self.box.fix() |
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def x(self, x): |
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"""Project x""" |
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if x is None: |
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return None |
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return self.width * (x - self.box.xmin) / self.box.width |
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def y(self, y): |
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"""Project y""" |
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if y is None: |
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return None |
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return (self.height - self.height * |
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(y - self.box.ymin) / self.box.height) |
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def __call__(self, xy): |
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"""Project x and y""" |
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x, y = xy |
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return (self.x(x), self.y(y)) |
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class ReverseView(View): |
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"""Same as view but reversed vertically""" |
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def y(self, y): |
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"""Project reversed y""" |
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if y is None: |
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return None |
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return (self.height * (y - self.box.ymin) / self.box.height) |
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class HorizontalView(View): |
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"""Same as view but transposed""" |
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def __init__(self, width, height, box): |
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"""Create the view with a width an height and a box bounds""" |
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self._force_vertical = None |
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self.width = width |
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self.height = height |
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self.box = box |
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self.box.fix() |
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self.box.swap() |
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def x(self, x): |
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"""Project x as y""" |
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if x is None: |
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return None |
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if self._force_vertical: |
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return super(HorizontalView, self).x(x) |
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return super(HorizontalView, self).y(x) |
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def y(self, y): |
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"""Project y as x""" |
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if y is None: |
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return None |
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if self._force_vertical: |
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return super(HorizontalView, self).y(y) |
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return super(HorizontalView, self).x(y) |
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class PolarView(View): |
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"""Polar projection for pie like graphs""" |
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def __call__(self, rhotheta): |
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"""Project rho and theta""" |
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if None in rhotheta: |
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return None, None |
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rho, theta = rhotheta |
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return super(PolarView, self).__call__( |
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(rho * cos(theta), rho * sin(theta))) |
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class PolarLogView(View): |
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|
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"""Logarithmic polar projection""" |
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def __init__(self, width, height, box): |
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"""Create the view with a width an height and a box bounds""" |
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super(PolarLogView, self).__init__(width, height, box) |
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if not hasattr(box, '_rmin') or not hasattr(box, '_rmax'): |
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raise Exception( |
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'Box must be set with set_polar_box for polar charts') |
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|
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self.log10_rmax = log10(self.box._rmax) |
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self.log10_rmin = log10(self.box._rmin) |
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if self.log10_rmin == self.log10_rmax: |
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self.log10_rmax = self.log10_rmin + 1 |
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|
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def __call__(self, rhotheta): |
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"""Project rho and theta""" |
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if None in rhotheta: |
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return None, None |
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rho, theta = rhotheta |
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# Center case |
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if rho == 0: |
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return super(PolarLogView, self).__call__((0, 0)) |
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rho = (self.box._rmax - self.box._rmin) * ( |
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log10(rho) - self.log10_rmin) / ( |
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self.log10_rmax - self.log10_rmin) |
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return super(PolarLogView, self).__call__( |
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(rho * cos(theta), rho * sin(theta))) |
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|
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|
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class PolarThetaView(View): |
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|
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"""Logarithmic polar projection""" |
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|
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def __init__(self, width, height, box, aperture=pi / 3): |
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"""Create the view with a width an height and a box bounds""" |
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super(PolarThetaView, self).__init__(width, height, box) |
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self.aperture = aperture |
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if not hasattr(box, '_tmin') or not hasattr(box, '_tmax'): |
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raise Exception( |
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'Box must be set with set_polar_box for polar charts') |
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|
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def __call__(self, rhotheta): |
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"""Project rho and theta""" |
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if None in rhotheta: |
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return None, None |
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rho, theta = rhotheta |
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start = 3 * pi / 2 + self.aperture / 2 |
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theta = start + (2 * pi - self.aperture) * ( |
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theta - self.box._tmin) / ( |
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self.box._tmax - self.box._tmin) |
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return super(PolarThetaView, self).__call__( |
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(rho * cos(theta), rho * sin(theta))) |
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|
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|
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class PolarThetaLogView(View): |
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|
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"""Logarithmic polar projection""" |
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|
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def __init__(self, width, height, box, aperture=pi / 3): |
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"""Create the view with a width an height and a box bounds""" |
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super(PolarThetaLogView, self).__init__(width, height, box) |
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self.aperture = aperture |
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if not hasattr(box, '_tmin') or not hasattr(box, '_tmax'): |
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raise Exception( |
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'Box must be set with set_polar_box for polar charts') |
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self.log10_tmax = log10(self.box._tmax) if self.box._tmax > 0 else 0 |
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self.log10_tmin = log10(self.box._tmin) if self.box._tmin > 0 else 0 |
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if self.log10_tmin == self.log10_tmax: |
||||
self.log10_tmax = self.log10_tmin + 1 |
||||
|
||||
def __call__(self, rhotheta): |
||||
"""Project rho and theta""" |
||||
if None in rhotheta: |
||||
return None, None |
||||
rho, theta = rhotheta |
||||
# Center case |
||||
if theta == 0: |
||||
return super(PolarThetaLogView, self).__call__((0, 0)) |
||||
theta = self.box._tmin + (self.box._tmax - self.box._tmin) * ( |
||||
log10(theta) - self.log10_tmin) / ( |
||||
self.log10_tmax - self.log10_tmin) |
||||
|
||||
start = 3 * pi / 2 + self.aperture / 2 |
||||
theta = start + (2 * pi - self.aperture) * ( |
||||
theta - self.box._tmin) / ( |
||||
self.box._tmax - self.box._tmin) |
||||
|
||||
return super(PolarThetaLogView, self).__call__( |
||||
(rho * cos(theta), rho * sin(theta))) |
||||
|
||||
|
||||
class LogView(View): |
||||
|
||||
"""Y Logarithmic projection""" |
||||
|
||||
# Do not want to call the parent here |
||||
def __init__(self, width, height, box): |
||||
"""Create the view with a width an height and a box bounds""" |
||||
self.width = width |
||||
self.height = height |
||||
self.box = box |
||||
self.log10_ymax = log10(self.box.ymax) if self.box.ymax > 0 else 0 |
||||
self.log10_ymin = log10(self.box.ymin) if self.box.ymin > 0 else 0 |
||||
if self.log10_ymin == self.log10_ymax: |
||||
self.log10_ymax = self.log10_ymin + 1 |
||||
self.box.fix(False) |
||||
|
||||
def y(self, y): |
||||
"""Project y""" |
||||
if y is None or y <= 0 or self.log10_ymax - self.log10_ymin == 0: |
||||
return 0.000001 |
||||
return (self.height - self.height * |
||||
(log10(y) - self.log10_ymin) / ( |
||||
self.log10_ymax - self.log10_ymin)) |
||||
|
||||
|
||||
class XLogView(View): |
||||
|
||||
"""X logarithmic projection""" |
||||
|
||||
# Do not want to call the parent here |
||||
def __init__(self, width, height, box): |
||||
"""Create the view with a width an height and a box bounds""" |
||||
self.width = width |
||||
self.height = height |
||||
self.box = box |
||||
self.log10_xmax = log10(self.box.xmax) if self.box.xmax > 0 else 0 |
||||
self.log10_xmin = log10(self.box.xmin) if self.box.xmin > 0 else 0 |
||||
self.box.fix(False) |
||||
|
||||
def x(self, x): |
||||
"""Project x""" |
||||
if x is None or x <= 0 or self.log10_xmax - self.log10_xmin == 0: |
||||
return None |
||||
return (self.width * |
||||
(log10(x) - self.log10_xmin) / |
||||
(self.log10_xmax - self.log10_xmin)) |
||||
|
||||
|
||||
class XYLogView(XLogView, LogView): |
||||
|
||||
"""X and Y logarithmic projection""" |
||||
|
||||
def __init__(self, width, height, box): |
||||
"""Create the view with a width an height and a box bounds""" |
||||
self.width = width |
||||
self.height = height |
||||
self.box = box |
||||
self.log10_ymax = log10(self.box.ymax) if self.box.ymax > 0 else 0 |
||||
self.log10_ymin = log10(self.box.ymin) if self.box.ymin > 0 else 0 |
||||
self.log10_xmax = log10(self.box.xmax) if self.box.xmax > 0 else 0 |
||||
self.log10_xmin = log10(self.box.xmin) if self.box.xmin > 0 else 0 |
||||
self.box.fix(False) |
||||
|
||||
|
||||
class HorizontalLogView(XLogView): |
||||
|
||||
"""Transposed Logarithmic projection""" |
||||
|
||||
# Do not want to call the parent here |
||||
def __init__(self, width, height, box): |
||||
"""Create the view with a width an height and a box bounds""" |
||||
self._force_vertical = None |
||||
self.width = width |
||||
self.height = height |
||||
self.box = box |
||||
self.log10_xmax = log10(self.box.ymax) if self.box.ymax > 0 else 0 |
||||
self.log10_xmin = log10(self.box.ymin) if self.box.ymin > 0 else 0 |
||||
if self.log10_xmin == self.log10_xmax: |
||||
self.log10_xmax = self.log10_xmin + 1 |
||||
self.box.fix(False) |
||||
self.box.swap() |
||||
|
||||
def x(self, x): |
||||
"""Project x as y""" |
||||
if x is None: |
||||
return None |
||||
if self._force_vertical: |
||||
return super(HorizontalLogView, self).x(x) |
||||
return super(XLogView, self).y(x) |
||||
|
||||
def y(self, y): |
||||
"""Project y as x""" |
||||
if y is None: |
||||
return None |
||||
if self._force_vertical: |
||||
return super(XLogView, self).y(y) |
||||
return super(HorizontalLogView, self).x(y) |
||||
Loading…
Reference in new issue