Distance of a point to a patch

I'm trying to calculate the distance of a single point to a patch. As you know, the point might be out of the patch surface after projection and as a result, the distance of the point to the patch might differ than its distance to a plane. I just need to know what would be the easiest way to recognize if the point is inside or outside of the patch after projection (please see the attached image).

Thank you already!

[Jan]

Please mention how you have defined the coordinates.

Answer 1

[Jan]

See:

• https://www.mathworks.com/matlabcentral/fileexchange/52882-point2trimesh-distance-between-point-and-triangulated-surface
• https://www.mathworks.com/matlabcentral/fileexchange/12744-distance-from-points-to-polyline-or-polygon