使用 Plotly 从点云生成表面网格

Generating surface mesh from point cloud using Plotly

我正在尝试从点云生成表面 . I have looked around and the solution seems to generate triangles from the cloud point to then produce the final mesh. However, I tried to follow the procedure proposed here but I failed and obtained this:

遗憾的是,我的数学背景不太好,当我开始从其他 awnsers 和 Plotly 文档中阅读镶嵌时,我并没有真正理解。

我使用的代码是这样的:

#Assume X_Vir, Y_Vir and Z_Vir are list of points used to create the scatter plot

points2D = np.vstack([X_Vir, Y_Vir]).T
tri = Delaunay(points2D)    
simplices = tri.simplices
fig = ff.create_trisurf(x=X_Vir, y=Y_Vir, z=Z_Vir, simplices=simplices)
fig.show()

有人有想法吗?

谢谢

我通过使用 plotly 的 Mesh3d 函数提供点坐标以及相关顶点来解决我的问题:

fig = pot.Figure(data=[pot.Mesh3d(x=points_coord90[:,1], y=points_coord90[:,0], z=points_coord90[:,2], 
                        i=points_vert[:,0], j=points_vert[:,1], k=points_vert[:,2], 
                        intensity=bi_volt, cmin=0, cmax=2, reversescale=False, colorscale='RdYlBu', opacity=1)])

fig.show()

如果你没有顶点,另一种可能性是使用 plotly 的 alphahull 选项(而不是 Delaunay),但它没有满足我的需求:

fig = pot.Figure(data=[pot.Mesh3d(x=points_coord90[:,1], y=points_coord90[:,0], z=points_coord90[:,2], alphahull=0.5, opacity=0.5)])