add intersection_p

src/experimental/intersection_p.scad

@@ -0,0 +1,9 @@
+use <__comm__/__line_intersection.scad>;
+use <__comm__/__in_line.scad>;
+
+function intersection_p(line_pts1, line_pts2, ext = false, epsilon = 0.0001) =
+     let(
+         pt = __line_intersection(line_pts1, line_pts2, epsilon)
+     )
+     ext ? pt :
+     pt != [] && __in_line(line_pts1, pt, epsilon) && __in_line(line_pts2, pt, epsilon) ? pt : [];