_Added in 1.9.4_

*$onpoly(n1,n2,x,y,x,y,...)*

Returns [[$true]] if two polygons overlap, otherwise [[$false]].

*Parameters*

table(ktable).
|*Parameter*|*Description*|
| n1 | Number of points in the first polygon. |
| n2 | Number of points in the second polygon. |
| x | First x coordinate. |
| y | First y coordinate. |
| x | Second x coordinate. |
| y | Second y coordinate. |
| ... | Additional coordinates. |