2014-11-14 147 views
12

對於我想繪製的多邊形的面(Nx3)和頂點(Mx3),我有兩個矩陣TriV。有沒有任何matplotlib(或任何其他)的方式來做到這一點?同樣的事情也到MATLAB命令在Python中繪製填充的多邊形

patch('faces',Tri,'vertices',V,'facecolor', 
     'flat','edgecolor','none','facealpha',1) 
+0

你可能想多邊形轉換爲三角形,然後用['plot_tri_surf'](http://matplotlib.org/mpl_toolkits/mplot3d/ tutorial.html#三面圖)。 – will 2014-11-14 17:57:14

回答

20

我不完全相信MATLAB做什麼,而是你可以得出使用matplotlib.patches.Polygon多邊形。從example在文檔改編:

import numpy as np 

import matplotlib.pyplot as plt 
import matplotlib 
from matplotlib.patches import Polygon 
from matplotlib.collections import PatchCollection 

fig, ax = plt.subplots() 
patches = [] 
num_polygons = 5 
num_sides = 5 

for i in range(num_polygons): 
    polygon = Polygon(np.random.rand(num_sides ,2), True) 
    patches.append(polygon) 

p = PatchCollection(patches, cmap=matplotlib.cm.jet, alpha=0.4) 

colors = 100*np.random.rand(len(patches)) 
p.set_array(np.array(colors)) 

ax.add_collection(p) 

plt.show() 

enter image description here