CloudCompare forum

Hello,
I am working on 3D point clouds in cloud compare and I am quite new to point cloud. I want to know it there is some tool in cloud compare which can change the scalar values based on the selected region. My scalar values contain the labels for each point and these labels correspond to the segmentation of the object. I want to change the labels of some region and then store the changed values in csv file.

You could split the points based on their scalar values (with 'Edit > Scalar fields > Filter by value'). Then on the point cloud that corresponds to the region you want to update, you can use the 'SF Arithmetic' tool to change the value (see http://www.cloudcompare.org/doc/wiki/in ... Arithmetic). And eventually you can merge the parts back into one cloud.