Add option to skip huge triangles to to_raster_tin feature

[kannes]

This is a feature request, coming from a QGIS user :)

My original feature request over at QGIS: qgis/QGIS#60113

It would be great if the to_raster_tin function had an option to "skip triangles bigger than ...". Then one could nicely rasterize data with islands in it. Currently one gets huge triangles connecting the islands.

Example

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

A result could look like this

[wonder-sk]

This will need support in PDAL first - there's a pending ticket for it: PDAL/PDAL#3924

[kannes]

Heh, thank you!

(https://en.wikipedia.org/wiki/Turtles_all_the_way_down#/media/File:River_terrapin.jpg)