mirror of https://github.com/Kozea/pygal.git
Florian Mounier
13 years ago
29 changed files with 672 additions and 164 deletions
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GNU LESSER GENERAL PUBLIC LICENSE |
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Version 3, 29 June 2007 |
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Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> |
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Everyone is permitted to copy and distribute verbatim copies |
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of this license document, but changing it is not allowed. |
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This version of the GNU Lesser General Public License incorporates |
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the terms and conditions of version 3 of the GNU General Public |
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License, supplemented by the additional permissions listed below. |
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0. Additional Definitions. |
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As used herein, "this License" refers to version 3 of the GNU Lesser |
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General Public License, and the "GNU GPL" refers to version 3 of the GNU |
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General Public License. |
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"The Library" refers to a covered work governed by this License, |
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other than an Application or a Combined Work as defined below. |
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An "Application" is any work that makes use of an interface provided |
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by the Library, but which is not otherwise based on the Library. |
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Defining a subclass of a class defined by the Library is deemed a mode |
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of using an interface provided by the Library. |
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A "Combined Work" is a work produced by combining or linking an |
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Application with the Library. The particular version of the Library |
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with which the Combined Work was made is also called the "Linked |
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Version". |
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The "Minimal Corresponding Source" for a Combined Work means the |
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Corresponding Source for the Combined Work, excluding any source code |
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for portions of the Combined Work that, considered in isolation, are |
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based on the Application, and not on the Linked Version. |
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The "Corresponding Application Code" for a Combined Work means the |
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object code and/or source code for the Application, including any data |
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and utility programs needed for reproducing the Combined Work from the |
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Application, but excluding the System Libraries of the Combined Work. |
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1. Exception to Section 3 of the GNU GPL. |
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You may convey a covered work under sections 3 and 4 of this License |
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without being bound by section 3 of the GNU GPL. |
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2. Conveying Modified Versions. |
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If you modify a copy of the Library, and, in your modifications, a |
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facility refers to a function or data to be supplied by an Application |
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that uses the facility (other than as an argument passed when the |
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facility is invoked), then you may convey a copy of the modified |
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version: |
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a) under this License, provided that you make a good faith effort to |
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ensure that, in the event an Application does not supply the |
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function or data, the facility still operates, and performs |
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whatever part of its purpose remains meaningful, or |
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b) under the GNU GPL, with none of the additional permissions of |
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this License applicable to that copy. |
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3. Object Code Incorporating Material from Library Header Files. |
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The object code form of an Application may incorporate material from |
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a header file that is part of the Library. You may convey such object |
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code under terms of your choice, provided that, if the incorporated |
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material is not limited to numerical parameters, data structure |
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layouts and accessors, or small macros, inline functions and templates |
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(ten or fewer lines in length), you do both of the following: |
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a) Give prominent notice with each copy of the object code that the |
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Library is used in it and that the Library and its use are |
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covered by this License. |
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b) Accompany the object code with a copy of the GNU GPL and this license |
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document. |
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|
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4. Combined Works. |
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|
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You may convey a Combined Work under terms of your choice that, |
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taken together, effectively do not restrict modification of the |
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portions of the Library contained in the Combined Work and reverse |
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engineering for debugging such modifications, if you also do each of |
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the following: |
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|
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a) Give prominent notice with each copy of the Combined Work that |
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the Library is used in it and that the Library and its use are |
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covered by this License. |
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b) Accompany the Combined Work with a copy of the GNU GPL and this license |
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document. |
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|
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c) For a Combined Work that displays copyright notices during |
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execution, include the copyright notice for the Library among |
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these notices, as well as a reference directing the user to the |
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copies of the GNU GPL and this license document. |
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d) Do one of the following: |
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0) Convey the Minimal Corresponding Source under the terms of this |
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License, and the Corresponding Application Code in a form |
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suitable for, and under terms that permit, the user to |
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recombine or relink the Application with a modified version of |
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the Linked Version to produce a modified Combined Work, in the |
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manner specified by section 6 of the GNU GPL for conveying |
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Corresponding Source. |
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|
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1) Use a suitable shared library mechanism for linking with the |
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Library. A suitable mechanism is one that (a) uses at run time |
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a copy of the Library already present on the user's computer |
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system, and (b) will operate properly with a modified version |
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of the Library that is interface-compatible with the Linked |
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Version. |
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e) Provide Installation Information, but only if you would otherwise |
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be required to provide such information under section 6 of the |
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GNU GPL, and only to the extent that such information is |
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necessary to install and execute a modified version of the |
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Combined Work produced by recombining or relinking the |
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Application with a modified version of the Linked Version. (If |
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you use option 4d0, the Installation Information must accompany |
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the Minimal Corresponding Source and Corresponding Application |
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Code. If you use option 4d1, you must provide the Installation |
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Information in the manner specified by section 6 of the GNU GPL |
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for conveying Corresponding Source.) |
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|
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5. Combined Libraries. |
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You may place library facilities that are a work based on the |
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Library side by side in a single library together with other library |
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facilities that are not Applications and are not covered by this |
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License, and convey such a combined library under terms of your |
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choice, if you do both of the following: |
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a) Accompany the combined library with a copy of the same work based |
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on the Library, uncombined with any other library facilities, |
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conveyed under the terms of this License. |
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b) Give prominent notice with the combined library that part of it |
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is a work based on the Library, and explaining where to find the |
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accompanying uncombined form of the same work. |
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|
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6. Revised Versions of the GNU Lesser General Public License. |
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The Free Software Foundation may publish revised and/or new versions |
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of the GNU Lesser General Public License from time to time. Such new |
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versions will be similar in spirit to the present version, but may |
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differ in detail to address new problems or concerns. |
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|
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Each version is given a distinguishing version number. If the |
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Library as you received it specifies that a certain numbered version |
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of the GNU Lesser General Public License "or any later version" |
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applies to it, you have the option of following the terms and |
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conditions either of that published version or of any later version |
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published by the Free Software Foundation. If the Library as you |
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received it does not specify a version number of the GNU Lesser |
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General Public License, you may choose any version of the GNU Lesser |
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|
General Public License ever published by the Free Software Foundation. |
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|
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If the Library as you received it specifies that a proxy can decide |
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whether future versions of the GNU Lesser General Public License shall |
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apply, that proxy's public statement of acceptance of any version is |
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permanent authorization for you to choose that version for the |
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Library. |
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@ -1,143 +0,0 @@ |
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from pygal.serie import Serie |
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from pygal.view import Margin, Box |
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from pygal.util import round_to_scale, cut, rad |
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from pygal.svg import Svg |
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from pygal.config import Config |
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from math import log10, sin, cos |
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class BaseGraph(object): |
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"""Graphs commons""" |
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def __init__(self, config=None): |
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self.config = config or Config() |
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self.svg = Svg(self) |
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self.series = [] |
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self.margin = Margin(*([20] * 4)) |
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self._x_labels = self._y_labels = None |
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self._box = Box() |
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def __getattr__(self, attr): |
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if attr in dir(self.config): |
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return object.__getattribute__(self.config, attr) |
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return object.__getattribute__(self, attr) |
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def _pos(self, min_, max_, scale): |
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order = round(log10(max(abs(min_), abs(max_)))) - 1 |
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while (max_ - min_) / float(10 ** order) < 4: |
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order -= 1 |
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step = float(10 ** order) |
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while (max_ - min_) / step > 20: |
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step *= 2. |
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positions = set() |
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if self.x_start_at_zero: |
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position = 0 |
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else: |
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position = round_to_scale(min_, step) |
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while position < (max_ + step): |
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rounded = round_to_scale(position, scale) |
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if min_ <= rounded <= max_: |
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positions.add(rounded) |
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position += step |
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if not positions: |
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return [min_] |
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return positions |
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def _text_len(self, lenght, fs): |
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return lenght * 0.6 * fs |
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def _get_text_box(self, text, fs): |
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return (fs, self._text_len(len(text), fs)) |
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def _get_texts_box(self, texts, fs): |
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max_len = max(map(len, texts)) |
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return (fs, self._text_len(max_len, fs)) |
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def _compute(self): |
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"""Initial computations to draw the graph""" |
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def _compute_margin(self): |
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if self.show_legend: |
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h, w = self._get_texts_box( |
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cut(self.series, 'title'), self.legend_font_size) |
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self.margin.right += 10 + w + self.legend_box_size |
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if self.title: |
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h, w = self._get_text_box(self.title, self.title_font_size) |
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self.margin.top += 10 + h |
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if self._x_labels: |
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h, w = self._get_texts_box( |
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cut(self._x_labels), self.label_font_size) |
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self.margin.bottom += 10 + max( |
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w * sin(rad(self.x_label_rotation)), h) |
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if self.x_label_rotation: |
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self.margin.right = max( |
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.5 * w * cos(rad(self.x_label_rotation)), |
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self.margin.right) |
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if self._y_labels: |
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h, w = self._get_texts_box( |
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cut(self._y_labels), self.label_font_size) |
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self.margin.left += 10 + max( |
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w * cos(rad(self.y_label_rotation)), h) |
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@property |
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def _legends(self): |
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return [serie.title for serie in self.series] |
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def _decorate(self): |
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self.svg.set_view() |
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self.svg.make_graph() |
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self.svg.x_axis() |
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self.svg.y_axis() |
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self.svg.legend() |
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self.svg.title() |
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def _draw(self): |
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self._compute() |
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self._compute_margin() |
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self._decorate() |
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self._plot() |
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def add(self, title, values): |
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self.series.append(Serie(title, values, len(self.series))) |
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def render(self): |
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if len(self.series) == 0 or sum( |
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map(len, map(lambda s: s.values, self.series))) == 0: |
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return "No data" |
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try: |
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self.validate() |
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self._draw() |
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return self.svg.render() |
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except Exception: |
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from traceback import format_exc |
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error_svg = ( |
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'<?xml version="1.0" standalone="no"?>' |
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'<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" ' |
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'"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">' |
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'<svg xmlns="http://www.w3.org/2000/svg" version="1.1">') |
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trace = (format_exc() |
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.replace('&', '&') |
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.replace('<', '<') |
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.replace('>', '>')) |
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for i, line in enumerate(trace.split('\n')): |
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error_svg += '<text y="%d">%s</text>' % ( |
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(i + 1) * 25, line) |
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error_svg += '</svg>' |
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return error_svg |
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def validate(self): |
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if self.x_labels: |
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assert len(self.series[0].values) == len(self.x_labels) |
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for serie in self.series: |
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assert len(self.series[0].values) == len(serie.values) |
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def _in_browser(self): |
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from lxml.html import open_in_browser |
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self._draw() |
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open_in_browser(self.svg.root, encoding='utf-8') |
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def render_response(self): |
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from flask import Response |
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return Response(self.render(), mimetype='image/svg+xml') |
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@ -0,0 +1,18 @@ |
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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 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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@ -0,0 +1,18 @@ |
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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 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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@ -1,13 +1,45 @@ |
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#!/usr/bin/env python |
#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
# -*- coding: utf-8 -*- |
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# This file is part of pygal |
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# |
# |
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# Public Domain |
# A python svg graph plotting library |
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from setuptools import setup, find_packages |
# Copyright © 2012 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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from setuptools import setup |
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setup( |
setup( |
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name="pygal", |
name="pygal", |
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packages=find_packages(), |
version='0.9', |
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description="A python svg graph plotting library", |
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author="Kozea", |
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author_email="florian.mounier@kozea.fr", |
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license="GNU LGPL v3", |
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platforms="Any", |
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packages=['pygal'], |
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provides=['pygal'], |
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keywords=["svg", "graph", "diagram", "plot", "histogram", "kiviat"], |
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tests_require=["pytest"], |
tests_require=["pytest"], |
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package_data={'pygal': ['css/*']}, |
package_data={'pygal': ['css/*']}, |
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install_requires=['lxml']) |
install_requires=['lxml'], |
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classifiers=[ |
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"Development Status :: 4 - Beta", |
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"Environment :: Console", |
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"Intended Audience :: End Users/Desktop", |
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"License :: OSI Approved :: " |
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"GNU Library or Lesser General Public License (LGPL)", |
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"Operating System :: OS Independent", |
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"Programming Language :: Python :: 2", |
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"Topic :: Multimedia :: Graphics :: Presentation"]) |
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