Drawing 3D lines with LINE

[Han]

(04-19-2019 01:37 AM)Eddie W. Shore Wrote:  Yes Ian. However, I'm still not sure about P1 and P2 of the line definition matrix.

The values p1 and p2 are the index values (within the points definition) corresponding to the two endpoints of the line you wish to draw. Each line is of the form { p1, p2, color, alpha } (last two parameters are optional, I think). I.e. if you call your points definition 'ptsdef' then the command draws a line starting from the point ptsdef(p1) and ending at the point ptsdef(p2).