Physical setup & coordinate system
Node 3 --------------------- 0 --------------------- Node 2 | | | | | frame_dy | | | | | | | 0 - - - - - - - - - - - - * 0/0/0 - - - - - - - - - 0 | | | | | frame_dy | | | | | | | Node 0 ----- frame_dx ------ 0 ----- frame_dx ------ Node 1
// frame dimensions, x and y are doubled, 0 is the frame center // z represents the height, positive up. 0 is x/y plane