This node takes a Curve Geometry input and creates a fill on Z=0 using a constrained Delaunay triangulation algorithm.
In case of many non-connected splines (for example a text curve) it accepts a spline attribute `group_index` to parallelize the CDT for better perfomance.
{F10216342}
A single spline segment can be added anywhere to improve triangulation like this:
{F10216344}