我正在尝试使用级别数组和颜色数组创建一个在Python 3.5中使用的自定义cmap。
水平数组是：levels = [-4, 0 ,0, .25, 1, 1.5, 2, 3, 4, 5, 6, 8]
，颜色是：
colors=[
(0,0,0),
(.8627,.8627, .8627),
(.5569,.4745,.7098),
(.0392,.0392, .6078),
(.2667,.9725,.8314),
(.3529,.8667,.3843),
(1,1,.3922),
(.8627,.0392,.0196),
(.6863,0,0),
(.9412, .4706,.7059),
(1,1,1),
(.5686,.1765,.5882)
]
我尝试过使用此页Making a custom colormap using matplotlib in python
中的信息随后
vmax = 8.0
zdr = mpl.colors.LinearSegmentedColormap.from_list('mycmap', [(-4 / vmax, (0,0,0)), (0 / vmax, (.8627,.8627, .8627)), (0 / vmax, (.5569,.4745,.7098)), (.25 / vmax, (.0392,.0392, .6078)),
(1 / vmax, (.2667,.9725,.8314)), (1.5 / vmax, (.3529,.8667,.3843)), (2 / vmax, (1,1,.3922)), (3 / vmax, (.8627,.0392,.0196)),
(4 / vmax, (.6863,0,0)), (5 / vmax, (.9412, .4706,.7059)), (6 / vmax, (1,1,1)), (8 / vmax, (.5686,.1765,.5882))])
但仍会收到以下错误。
ValueError: data mapping points must start with x=0. and end with x=1
非常感谢任何帮助或正确方向的观点。谢谢！