将值映射到 Matplotlib 中的颜色
要将值映射到tuple(red,greenandblue)matplotlib中的颜色，我们可以采取以下步骤-
创建一个从1.00到2.00的值列表，count=10。
将线性归一化数据放入vmin和vmax区间。
获取一个对象将标量数据映射到rgba。
迭代这些值以映射颜色值。
针对映射的红色、绿色和蓝色值打印值。
示例
import numpy as np
from matplotlib import cm, colors
values = np.linspace(1.0, 2.0, 10)
norm = colors.Normalize(vmin=1.0, vmax=2.0, clip=True)
mapper = cm.ScalarMappable(norm=norm, cmap=cm.Greys_r)
for value in values:
print("%.2f" % value, "=",
"red:%.2f" % mapper.to_rgba(value)[0],
"green:%.2f" % mapper.to_rgba(value)[1],
"blue:%.2f" % mapper.to_rgba(value)[2])输出结果1.00 = red:0.00 green:0.00 blue:0.00 1.11 = red:0.13 green:0.13 blue:0.13 1.22 = red:0.28 green:0.28 blue:0.28 1.33 = red:0.41 green:0.41 blue:0.41 1.44 = red:0.53 green:0.53 blue:0.53 1.56 = red:0.66 green:0.66 blue:0.66 1.67 = red:0.78 green:0.78 blue:0.78 1.78 = red:0.87 green:0.87 blue:0.87 1.89 = red:0.95 green:0.95 blue:0.95 2.00 = red:1.00 green:1.00 blue:1.00