Drag the zone's vertices or the robot. The dashed ray counts edge crossings.
Show shoelace triangle fan from origin
Show ray-casting crossings
Toggle dent (convex ⇄ concave)
Robot is
inside
Ray crossings
1 (odd)
Shoelace signed area
+0.00
Area
0.00 m²
Winding
counter-clockwise
Shape
convex
Bounding box area
0.00 m²