How to export point cloud with colour data

Hello,

I have a pointcloud with colour values by using fscatter3 . My question is how do I export this pointcloud with the colour values? I have looked into the matpcl library, and pointCloud2mesh.mat , and makeVRMLfile.mat but unable to export with colour. Any help is appreciated.

[Doug Hull]

what is fscatter3?

What does it mean to "ex[port this pointcloud wit the color values?"

Why would .MAT files (our way of saving the workspace) help with this?

Please clarify the question.

[Ryan]

Hi Doug,

This is what the fscatter3 function does: fscatter3 effcient 3d scatter plot. H = fscatter3(X,Y,Z,C.MAP) is a faster version of SCATTER3 which can be used to render colored point clouds. The 3d points are defined by the N element column vectors X, Y, and Z, and the per-vertex colors by the Nx3 matrix C. This function was derived from fscatter3 by Felix Morsdorf, which is available on Matlab Central:

        http://www.mathworks.com/matlabcentral/fileexchange/

By "exporting the pointcloud with the color values", I mean that I want to add RGB color data into the pointcloud. A pointcloud is a collection of points that are connected with the nearest neighbour method. It is essentially a 3D mesh. My pointcloud currently generates a monochrome (grey) 3D image, but I want to add the color information in it too.

I have been able to add color data into my pointcloud using the fscatter3 function, but I am not able to export it into a .ply / .wrl / .stl file. Can you assist me on this?

Thanks, Ryan