OpenSCAD User Manual/WIP/Roof

roof() generates a chamfer of 45° over 2D child polygons. It is constructed via voronoi or straight point mesh generation.

roof(method = ["straight" | "voronoi"], convexity = N) { children };

parameters:

method

"straight" or "voronoi". The "voronoi" (default) setting produces rounded curves where the polygon corners are concave. For convex polygons, there is no difference between "straight" and "voronoi".

convexity

Integer. The convexity parameter specifies the maximum number of faces a ray intersecting the object might penetrate. This parameter is needed only for correct display of the object in OpenCSG preview mode. It has no effect on the polyhedron rendering. For display problems, setting it to 10 should work fine for most cases.

default values: roof() square(10);
yields:  roof(method = "voronoi", convexity = 1) square(10);

Example: beveled text

$fa=1; $fs=0.4;
intersection() {
  cube([100,100,2],true);
  scale([1,1,3]) roof(convexity=6) text("Wow");
}