How to determine the scale factors

[kaarigar]

I have a point cloud which needs scaling in X, Y and Z - however I don't have a clear idea to determine the scale factors. I have a ruler on ground whose length I know. So I think I should be able to scale the point cloud in X and Y. But I don' know what's the scale factor for X and Y. Perhaps I can have the same process to scale in Z if I have to known height in Z. Can someone help me with this? Thank you in advance!

[daniel]

Not sure if this helps, but you can pick two points with the 'Point picking' tool (see https://www.cloudcompare.org/doc/wiki/i ... ints_label). You'll be able to read the dimensions of the corresponding vector along each dimension. Maybe it will help you determine the right scales?