this fixes the drawing discrepancy where it assumed the canvas filled the entire window.  now we specify our canvas dimensions and position correct and keep track of where the mouse is with respect to the canvas.
this fixes the drawing discrepancy where it assumed the canvas filled the entire window.  now we specify our canvas dimensions and position correct and keep track of where the mouse is with respect to the canvas.

BRL-CAD/web,BRL-CAD/web,BRL-CAD/web,BRL-CAD/web,BRL-CAD/web,BRL-CAD/web,BRL-CAD/web