Python to generate nice looking SVG graph http://pygal.org/
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# -*- coding: utf-8 -*-
from flask import Flask, Response, render_template, url_for
from log_colorizer import make_colored_stream_handler
from moulinrouge.data import labels, series
from logging import getLogger, INFO, DEBUG
import pygal
from pygal.config import Config
from pygal.style import styles
import string
import random
def random_label():
chars = string.letters + string.digits + u' àéèçêâäëï'
return ''.join(
[random.choice(chars)
for i in range(
random.randrange(4, 30))])
def random_value(min=0, max=15):
return random.randrange(min, max, 1)
def create_app():
"""Creates the pygal test web app"""
app = Flask(__name__)
handler = make_colored_stream_handler()
getLogger('werkzeug').addHandler(handler)
getLogger('werkzeug').setLevel(INFO)
getLogger('pygal').addHandler(handler)
getLogger('pygal').setLevel(DEBUG)
@app.route("/")
def index():
return render_template('index.jinja2')
@app.route("/all-<type>-<style>(fill=<fill>).svg")
def all_svg(type, style, fill):
data = random.randrange(1, 10)
order = random.randrange(1, 10)
max = 10 ** order
min = 10 ** random.randrange(0, order)
config = Config()
config.width = 600
config.height = 400
config.fill = fill == 'True'
config.style = styles[style]
if type != 'Pie':
config.x_labels = [random_label() for i in range(data)]
config.title = "%d - %d" % (min, max)
g = getattr(pygal, type)(config)
for i in range(random.randrange(1, 10)):
if type == 'Pie':
values = random_value(min, max)
elif type == 'XY':
values = [(
random_value((-max, min)[random.randrange(0, 2)], max),
random_value((-max, min)[random.randrange(0, 2)], max))
for i in range(data)]
else:
values = [random_value((-max, min)[random.randrange(0, 2)],
max) for i in range(data)]
g.add(random_label(), values)
return g.render_response()
@app.route("/all")
def all():
width, height = 600, 400
svgs = [url_for('all_svg', type=type, style=style, fill=fill)
for style in styles
for fill in (False, True)
for type in ('Bar', 'Line', 'XY', 'Pie', 'StackedBar',
'HorizontalBar', 'HorizontalStackedBar', 'Radar')]
return render_template('svgs.jinja2',
svgs=svgs,
width=width,
height=height)
@app.route("/rotation[<int:angle>].svg")
def rotation_svg(angle):
config = Config()
config.width = 375
config.height = 245
config.x_labels = labels
config.x_label_rotation = angle
g = pygal.Line(config)
for serie, values in series.items():
g.add(serie, values)
g.add(serie, values)
return g.render_response()
@app.route("/rotation")
def rotation():
width, height = 375, 245
svgs = [url_for('rotation_svg', angle=angle)
for angle in range(0, 91, 5)]
return render_template('svgs.jinja2',
svgs=svgs,
width=width,
height=height)
@app.route("/bigline.svg")
def big_line_svg():
g = pygal.Line(600, 400)
g.x_labels = ['a', 'b', 'c', 'd']
g.add('serie', [11, 50, 133, 2])
return g.render_response()
@app.route("/bigline")
def big_line():
width, height = 900, 800
svgs = [url_for('big_line_svg')]
return render_template('svgs.jinja2',
svgs=svgs,
width=width,
height=height)
return app