CloudCompare forum

Hello. I am a relatively new user of CloudCompare. I am currently in the process of designing a workflow to quantify the corrosion of a concrete block using different point cloud capture methods (SfM photogrammetry and laser scanning). As part of this process, I would like to take point clouds of a cylindrical concrete block, similar to the image below and turn it into a flat surface. Is this possible within CloudCompare? I would appreciate any insight from the community. Thanks.

You should check out Surface of Revolution Analysis plugin

And if you just want to 'unroll' the cylinder, then the 'Unroll' tool is what you need: https://www.cloudcompare.org/doc/wiki/i ... tle=Unroll

Thank you for your replies. I will look into your suggestions and see what happens.

Hello again. I used the ‘unroll’ tool to unroll the cylinder shown in previous post about the Y-axis. The result is not the flat rectangular surface I was hoping for (pictured below). Is that because the concrete cylinder itself is not aligned to the Y-axis? If so, is there a way for me to align it? Apologies if this appears trivial, I am still new to CloudCompare. Thank you.

Yes you are supposed to align your cylinder/cloud indeed.

Either you do it manually (with the 'Edit > Transform/Rotate' tool), or you use the 'Level' tool to make the bottom or top surface horizontal for instance (if you trust them to be orthogonal to the cylinder axis)