PyChartDirector中文教程[4]：简单的饼状图

May 04	PyChartDirector中文教程[4]：简单的饼状图
	Categories: Default \| Tags: ChartDirector, Python \| Views: 2,072

先来看看我们要画的这个最简单的饼状图吧:

这个例子展示了画饼状图的基本步骤:

用PieChart创建一个pie chart对象

用setPieSize指定中心和半径

为饼状图指定数据

用makeChart保存图像

我们先看一下源代码:

#!/usr/bin/python
from pychartdir import *
 
# The data for the pie chart
data = [25, 18, 15, 12, 8, 30, 35]
 
# The labels for the pie chart
labels = ["Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities",
    "Production"]
 
# Create a PieChart object of size 360 x 300 pixels
c = PieChart(360, 300)
 
# Set the center of the pie at (180, 140) and the radius to 100 pixels, 
# 圆心(180,140) 半径:100px
c.setPieSize(180, 140, 100)
 
# Set the pie data and the pie labels 
# 指定数据和标签
c.setData(data, labels)
 
# Output the chart
c.makeChart("simplepie.png")