Add "Skip triangles longer than" option to "Export to raster (using triangulation)" point cloud tool

[kannes]

Feature description

It would be great to be able to discard triangles above a certain size when creating a raster from triangulated point cloud data. Instead of the triangulated interpolated values, NODATA should be written there.

I have a point cloud that has two disconnected areas of data:

I want to create a raster file of this data.

When I use the "Export to raster (using triangulation)" processing tool, I get a raster where values between my separate "islands" of data are interpolated:

• Cyan: My point cloud data points
• Spectral: The exported raster

It would be nice if, similar to the Layer Styling triangulation, I could specify a maximum length of triangles.

Here is what "Skip triangles longer than" 100 meters looks like in the canvas:

A result could look like this:

Additional context

No response

[alexbruy]

This should be posted at the wrench repo, not here.

[kannes]

The what where?

[jef-n]

The what where?

PDAL algorithms use https://github.com/PDAL/wrench

[kannes]

I posted PDAL/wrench#43

Could this feature request stay open for future addition? I assume the option would not magically appear if implemented in wrench, right?