mirror of https://github.com/Kozea/pygal.git
Python to generate nice looking SVG graph
http://pygal.org/
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119 lines
3.5 KiB
119 lines
3.5 KiB
# -*- coding: utf-8 -*- |
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from flask import Flask, Response, render_template, url_for |
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from log_colorizer import make_colored_stream_handler |
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from logging import getLogger, INFO, WARN, DEBUG |
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from moulinrouge.data import labels, series |
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from pygal.bar import VerticalBar, HorizontalBar |
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from pygal.line import Line |
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from pygal.pie import Pie |
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import string |
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import random |
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def random_label(): |
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chars = string.letters + string.digits + u' àéèçêâäëï' |
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return ''.join( |
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[random.choice(chars) |
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for i in range( |
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random.randrange(4, 30))]) |
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def random_value(): |
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return random.randrange(0, 15, 1) |
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def generate_vbar(**opts): |
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g = VerticalBar(labels, opts) |
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for serie, values in series.items(): |
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g.add_data({'data': values, 'title': serie}) |
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return Response(g.burn(), mimetype='image/svg+xml') |
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def create_app(): |
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"""Creates the pygal test web app""" |
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app = Flask(__name__) |
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handler = make_colored_stream_handler() |
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getLogger('werkzeug').addHandler(handler) |
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getLogger('werkzeug').setLevel(INFO) |
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getLogger('pygal').addHandler(handler) |
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getLogger('pygal').setLevel(DEBUG) |
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@app.route("/") |
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def index(): |
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return render_template('index.jinja2') |
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@app.route("/all-<type>.svg") |
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def all_svg(type): |
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series = random.randrange(1, 10) |
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data = random.randrange(1, 10) |
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labels = [random_label() for i in range(data)] |
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if type == 'vbar': |
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g = VerticalBar(labels) |
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elif type == 'hbar': |
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g = HorizontalBar(labels) |
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elif type == 'pie': |
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series = 1 |
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g = Pie({'fields': labels}) |
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elif type == 'line': |
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g = Line({'fields': labels}) |
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for i in range(series): |
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values = [random_value() for i in range(data)] |
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g.add_data({'data': values, 'title': random_label()}) |
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return Response(g.burn(), mimetype='image/svg+xml') |
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@app.route("/all") |
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def all(): |
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width, height = 600, 400 |
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svgs = [url_for('all_svg', type=type) for type in |
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('vbar', 'hbar', 'line', 'pie')] |
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return render_template('svgs.jinja2', |
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svgs=svgs, |
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width=width, |
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height=height) |
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@app.route("/rotation[<int:angle>].svg") |
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def rotation_svg(angle): |
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return generate_vbar( |
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show_graph_title=True, |
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graph_title="Rotation %d" % angle, |
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x_label_rotation=angle) |
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@app.route("/rotation") |
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def rotation(): |
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width, height = 375, 245 |
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svgs = [url_for('rotation_svg', angle=angle) |
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for angle in range(0, 91, 5)] |
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return render_template('svgs.jinja2', |
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svgs=svgs, |
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width=width, |
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height=height) |
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@app.route("/bigline.svg") |
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def big_line_svg(): |
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g = Line({'fields': ['a', 'b', 'c', 'd']}) |
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g.width = 1500 |
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g.area_fill = True |
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g.scale_divisions = 50 |
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# values = [120, 50, 42, 100] |
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# g.add_data({'data': values, 'title': '1'}) |
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values = [11, 50, 133, 2] |
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g.add_data({'data': values, 'title': '2'}) |
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return Response(g.burn(), mimetype='image/svg+xml') |
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@app.route("/bigline") |
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def big_line(): |
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width, height = 900, 800 |
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svgs = [url_for('big_line_svg')] |
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return render_template('svgs.jinja2', |
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svgs=svgs, |
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width=width, |
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height=height) |
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return app
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