Find geometry from point (is_point_contained)

Coreform Cubit Geometry
#1

When I use the python method is_point_contained() for volumes, I can find a specific volume at any point. However, this method does not seem to work for surfaces or curves. I always get -1 as a result, even though i am sure the point is on the surface/curve.

Is there any other method I can use, when I want to find the entity specified by some coordinate?
Thanks for any help.
Best regards
Ingo

#2

Hi Ingo,

Currently, we only support point containment for types volume and body. It looks like it would be an easy fix to support surfaces and curves as well. I will add that to our development list.

You could use a get_distance_between_entities and check if the returned distance is less than some tolerance.

Is that helpful?

Thanks,
Karl

#3

Thank you very much for the quick response. Unfortunately, get_distance_between_entities does not really help, since I want to get a curve or surface id based on a coordinate triple, not an entity.

#4

You might be able to use the get_closest_point() and closest_point_trimmed() methods (see below). If the distance between your triple and the closest point is > 0 (with floating-point tolerances considered) then it’s not on the curve / surface:

Curve

Surface