Hi there!
I'd like to share the restults of investigastions for currently undocumented commands in HyperMesh. Feel free to add information about your experiences ...
hm_findclosestpointonline – Find closest point on line for given coordinates.
Syntax hm_findclosestpointonline x y z lineIDArguments x The X coordinate of the input point. y The Y coordinate of the input point. z The Z coordinate of the input point. lineID Entity ID of line.Comments Returns xL yL zL dist xL The X coordinate of the nearest point on line. yL The Y coordinate of the nearest point on line. zL The Z coordinate of the nearest point on line. dist The shortest distance from point to line.