We did the rotation of axes and foresee no problem in the getting the
resulting coordinates. One big problem is Excel plotting axes are not uniform
in scale making the plotting distorted.

"Cody" wrote:

Thank you for your help.

"PY & Associates" wrote:

I do not know why that I cannot retrieve the last three messages with
my home computer. Wish to add that you can make the problem simpler if
you transform the axes so that the side you choose, lines up with the Y
axis.

Regards
PY & Associates