Hello all, 
  
Anybody got an idea how to do this in lisp: 
  
I want to stretch a boundary (the yellow line) over the X direction (like the red line) and then over the Y direction so you get the green line in the end. The value’s for X and Y can be different. The boundary can contain arcs.  
  
The best for me would be if the stretch to all 4 directions can be different. For instance left 1, bottom 0.5, right 1.5 and top 2. 
  
 
  
Thank you all for your input, 
  
ubsure