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- adds topology-based segmentation of the surfaces generated with
distance surfaces. This can occur when the surface terminates
close to a thin wall gap in the mesh; resulting in a cuts that
extend into the next region.
The cutting algorithm does not normally distinguish between these
types of "ragged" cuts, and legitimate ones (eg, cutting multiple
pipes). The additional segmentation controls provide for two common
scenarios:
largestRegion (pre-filter):
- The cut cells are checked for topological connectivity and the
region with the most number of cut cells is retained.
This handles the "ragged" edge problem.
nearestPoints (pre-filter):
- The cut cells split into regions, the regions closest to the
user-defined points are retained.
Uses maxDistance for additional control.
proximity (post-filter):
- Checks the resulting faces against the original search surface
and rejects faces with a distance greater than absProximity.
ENH: restructure distance surface geometric filtering
- prefilter cells, which can be used to adjust the distance
calculation in the far field to the real distance
(not the normal distance).
This can also be used to artificially sharpen the transition
between near/far regions, if required in the future.