3D-printing/Cura
1
0
Fork 0
mirror of https://github.com/Ultimaker/Cura.git synced 2025-07-25 15:44:04 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 10

Expand convex hull by horizontal expansion

Browse source 
The getSetting call doesn't seem to work at the moment, but the rest of the routine works if I replace the getSetting call with an actual value.

Contributes to issue CURA-2407.
This commit is contained in:
Ghostkeeper 2016-09-27 17:09:19 +02:00
parent dc80d50eb5
commit 6affb80189
No known key found for this signature in database
GPG key ID: 701948C5954A7385
1 changed files with 10 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

13
cura/ConvexHullDecorator.py
View file

@ -199,9 +199,16 @@ class ConvexHullDecorator(SceneNodeDecorator):
# First, calculate the normal convex hull around the points # First, calculate the normal convex hull around the points
convex_hull = hull.getConvexHull() convex_hull = hull.getConvexHull()
# Then, do a Minkowski hull with a simple 1x1 quad to outset and round the normal convex hull. #Then, offset the convex hull with the horizontal expansion value, since that is always added to the mesh.
# This is done because of rounding errors. #Use a minimum of 0.5mm to outset and round the normal convex hull if there is no horizontal expansion, because of edge cases.
rounded_hull = convex_hull.getMinkowskiHull(Polygon(numpy.array([[-0.5, -0.5], [-0.5, 0.5], [0.5, 0.5], [0.5, -0.5]], numpy.float32))) horizontal_expansion = max(0.5, self._getSettingProperty("xy_offset", "value"))
expansion_polygon = Polygon(numpy.array([
[-horizontal_expansion, -horizontal_expansion],
[-horizontal_expansion, horizontal_expansion],
[horizontal_expansion, horizontal_expansion],
[horizontal_expansion, -horizontal_expansion]
], numpy.float32))
rounded_hull = convex_hull.getMinkowskiHull(expansion_polygon)
# Store the result in the cache # Store the result in the cache
self._2d_convex_hull_mesh = mesh self._2d_convex_hull_mesh = mesh