2.5D Volume Calculation between (inclined) plane and Point Cloud

[rspielma]

Hi there!

I'm trying to calculate the volume between two point clouds: One of them represents a plane and the other some material that was put on that plane. Now I would like to know the volume of that material.
I tried to use the "Compute 2.5D volume" tool, and it did indeed work to calculate the volume between the point clouds. Since my point cloud representing the plane is kind of noisy, I fitted a plane through it.

Now I would like to calculate the volume between this fitted plane and my point cloud, which is apparently not possible with the 2.5D volume calculation tool. Is there any way I could do this?

I tried to select "constant" as a reference / ground, but since my plane is an inclined plane it does not really make sense to calculate the volume between a horizontal plane and the point cloud.

Thanks for any help!

[daniel]

So you should instead sample points on the plane (a lot, so as to get a dense reference cloud).

However, for the other cloud (that represents the top of the pile) it's way too sparse. You may try to create a mesh first (with Delaunay 2.5D). If it works (i.e. if it's not too ugly) then you can also sample points on this mesh so as to use it in the 2.5D Volume calculation tool.