### 5.6 Clip2D

• Clip2D( <polyline>, <convex contour> [, close(0/1) ] ).
• Description: that function allows to clip the <polyline> that has to be a variable containing a list of complexes, with the <convex contour>, that is also a complexes list. The function calculates the resulting polyline, then modify the variable <polyline>. The last argument <close> shows if the <polyline> has to be closed or not ($0$ by default). The function returns Nil.