How to check x,y of object?

if you have a structure

push / translate / rotate / scale / draw_object() / pop

there is a way to know exactly where it is,
if you save that info with:

push / translate / rotate / scale / draw_object()

  float jx = modelX(0, 0, 0);
  float jy = modelY(0, 0, 0);
  float jz = modelZ(0, 0, 0);

pop

now can use that jx,jy,jz
like for a collision…

old 3D test code here: Trying to use modelX() but built a spiral galaxy of points - #4 by kll