python - 如何使用Pychart在饼图中填充颜色

Question

我正在使用 python Pychart。我已经完成了以下代码来生成饼图:

from pychart import *
import sys

data = [("foo", 10),("bar", 20), ("baz", 30), ("ao", 40)]
theme.get_options()    
ar = area.T(size=(150,150), legend=legend.T(),
            x_grid_style = None, y_grid_style = None)

plot = pie_plot.T(data=data, arc_offsets=[0,0,0,0],
                  shadow = (0, 0, fill_style.gray50),
                  label_offset = 25,
                  arrow_style = arrow.a3)
ar.add_plot(plot)
ar.draw()

生成灰度饼图。我想要饼图中的不同颜色而不是灰度。我该怎么做？

Answer 1

在调用 get_options() 之前添加 theme.use_color = True。

对于主题文档:

use_color

The default value of this variable is False. If the value is True, PyChart colorizes some of the default objects. If the value is False, PyChart uses gray scale for the color of these objects.