一、代码：
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import cairo
import pycha.pie
import pycha.bar
import pycha.scatter
import pycha.stackedbar
import pycha.line
#设置画布
def set_charvalue():
width,height=600,600
surface=cairo.ImageSurface(cairo.FORMAT_ARGB32,width,height)
return surface
#画饼图
def draw_pie(surface, options, dataSet):
chart=pycha.pie.PieChart(surface,options)
chart.addDataset(dataSet)
chart.render()
surface.write_to_png('d:\\Pie.png')
#垂直直方图
def draw_vertical_bar(surface, options, dataSet):
chart=pycha.bar.VerticalBarChart(surface,options)
surface.write_to_png('d:\\vertical_bar.png')
#垂直水平直方图
def draw_horizontal_bar(surface, options, dataSet):
chart = pycha.bar.HorizontalBarChart(surface,options)
surface.write_to_png('d:\\horizontal_bar.png')
#线图
def draw_line(surface, options, dataSet):
chart = pycha.line.LineChart(surface,options)
surface.write_to_png('d:\\line.png')
#点图
def draw_scatterplot(surface, options, dataSet):
chart = pycha.scatter.ScatterplotChart(surface,options)
surface.write_to_png('d:\\scatterplotChart.png')
#垂直块图
def draw_stackedverticalbarChar(surface, options, dataSet):
chart = pycha.stackedbar.StackedVerticalBarChart(surface,options)
surface.write_to_png('d:\\stackedVerticalBarChart.png')
#水平块图
def draw_stackedhorizontalbarChart(surface, options, dataSet):
chart = pycha.stackedbar.StackedHorizontalBarChart(surface,options)
surface.write_to_png('d:\\stackedhorizontalbarChart.png')
if __name__ == '__main__':
'''''
Function:使用pycha画各种图表
Input：NONE
Output: NONE
author: socrates
blog:http://blog.csdn.net/dyx1024
date:2012-02-28
'''
#数据来源
dataSet=(
('iphone',((0,1),(1,3),(2,2.5))),
('htc',((0,2),(1,4),(2,3))),
('hw',((0,5),(1,1,),(2,0.5))),
('zte',((0,3),(1,2,),(2,1.5))),
)
#图像属性定义
options={
'legend':{'hide':False},
'title':'手机销售量分布图(by dyx1024)',
'titleColor':'#0000ff',
'titleFont':'字体',
'background':{'chartColor': '#ffffff'},
'axis':{'labelColor':'#ff0000'},
}
surface = set_charvalue()
#根据需要调用不同函数画不同形状的图
#draw_pie(surface, options, dataSet)
#draw_vertical_bar(surface, options, dataSet)
#draw_horizontal_bar(surface, options, dataSet)
#draw_scatterplot(surface, options, dataSet)
#draw_stackedverticalbarChar(surface, options, dataSet)
#draw_stackedhorizontalbarChart(surface, options, dataSet)
draw_line(surface, options, dataSet)
二、测试：
1、函数draw_pie(surface, options, dataSet)：
2、函数draw_vertical_bar(surface, options, dataSet)：
3、函数draw_horizontal_bar(surface, options, dataSet)：
4、函数draw_line(surface, options, dataSet):
5、函数draw_scatterplot(surface, options, dataSet)：
6、函数draw_stackedverticalbarChar(surface, options, dataSet)：
7、函数draw_stackedhorizontalbarChart(surface, options, dataSet)：
本文转自 chengxuyonghu 51CTO博客，原文链接：http://blog.51cto.com/6226001001/1576046，如需转载请自行联系原作者