问题
I have a 3D point cloud each with different color/values attribute attached to each vertex of XYZ points.
The Raw data is in simple .txt / csv form in columns i.e x, y, z, V1, V2, V3 and a new line for next point I am trying to use .ply to make images. I want to create a 3D image such as:
.
What is the appropriate code in ply format to color each surface or vertex based on each of these values? I want to create multiple maps with the same shape but mapping different colors to the surface.
回答1:
The PLY format supports vertex color by defining
property uchar red
property uchar green
property uchar blue
in the header. The RGB values in [0, 255] can be added after each vertex coordinates.
If you want to define multiple color values attached to each vertex, use user-defined elements. See examples here: http://paulbourke.net/dataformats/ply/
来源：https://stackoverflow.com/questions/17122934/adding-color-to-vertex-points-in-ply-format