plt的cmap有哪些
时间: 2024-09-27 07:15:48 浏览: 30
Matplotlib库中的`plt.cm`模块提供了一系列预定义的颜色映射(colormap),用于将数值数据映射到颜色空间上。常用的`cmap`包括但不限于:
1. 热色地图(Hot colormap):`hot`, `hot_r`
2. 冷色地图(Cold colormap):`cool`, `coolwarm`
3. 彩虹色(Rainbow colormap):`rainbow`, `jet`, `hsv`, `prism`
4. 分段线性地图(Sequential colormaps):`Blues`, `Greens`, `Oranges`, `YlGnBu`, `BuPu`
5. 对称分段线性地图:`binary`, `gray`, `Purples`, `RdGy`, `RdBu`
6. 类似灰度的渐变:`gnuplot`, `gnuplot2`, `ocean`
7. 地图相关的:`terrain`, `terrain.colors`
8. 其他:`brg`, `CMRmap`, `Pastel1`, `Pastel2`, `tab10`, `tab20`, `tab20b`, `tab20c`
你可以通过`plt.cm.get_cmap(name)`获取特定颜色映射,并在`plot`等函数中传入`cmap`参数来应用它。例如:
```python
import matplotlib.pyplot as plt
plt.imshow(data, cmap=plt.cm.RdBu) # 使用RdBu颜色映射
```
相关问题
plt.scatter的cmap有哪些
`plt.scatter`函数的`cmap`参数可以接受许多不同的颜色映射(colormap),包括:
- 'viridis'
- 'plasma'
- 'inferno'
- 'magma'
- 'cividis'
- 'Greys'
- 'Purples'
- 'Blues'
- 'Greens'
- 'Oranges'
- 'Reds'
- 'YlOrBr'
- 'YlOrRd'
- 'OrRd'
- 'PuRd'
- 'RdPu'
- 'BuPu'
- 'GnBu'
- 'PuBu'
- 'YlGnBu'
- 'PuBuGn'
- 'BuGn'
- 'YlGn'
你可以根据需要选择合适的颜色映射。
plt.imshow中的cmap参数有哪些
可选值?
可以选择的cmap参数包括: "viridis", "plasma", "inferno", "magma", "cividis", "Greys", "Purples", "Blues", "Greens", "Oranges", "Reds", "YlOrBr", "YlOrRd", "OrRd", "PuRd", "RdPu", "BuPu", "GnBu", "PuBu", "YlGnBu", "PuBuGn", "BuGn", "YlGn", "binary", "gist_yarg", "gist_gray", "gray", "bone", "pink", "spring", "summer", "autumn", "winter", "cool", "Wistia", "hot", "afmhot", "gist_heat", "copper".
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