Cura/cura/ConvexHullJob.py
Arjen Hiemstra f099c30dfd Merge branch 'master' of github.com:ultimaker/Cura into per_object_settings
* 'master' of github.com:ultimaker/Cura: (98 commits)
  15.10 Restyling of the message stack
  Fixed machine head polygons
  Removed unused settings from fdmprinter
  Added action for togling fullscreen
  Fixed usage of wrong checkbox in viewpage
  Added preference to disable automatic push free
  Added preference to disable auto center when selecting object
  Cleanup
  15.10 Restyling toolbar, viewmode button
  Update README.md
  Update README.md
  Added rudementary 3 point bed leveling
  15.10 New font for Cura
  15.10 Changes the styling for the open file button
  15.10 Changes the label names for the different action buttons
  Fixed typo
  Endstop now stops listening upon destruction
  15.10 Re-alignment of the messagestack
  Cleaned up code a bit
  Added heated bed check
  ...
2015-08-21 13:29:30 +02:00

71 lines
3.4 KiB
Python

# Copyright (c) 2015 Ultimaker B.V.
# Cura is released under the terms of the AGPLv3 or higher.
from UM.Job import Job
from UM.Application import Application
from UM.Math.Polygon import Polygon
import numpy
import copy
from . import ConvexHullNode
class ConvexHullJob(Job):
def __init__(self, node):
super().__init__()
self._node = node
def run(self):
if not self._node:
return
## If the scene node is a group, use the hull of the children to calculate its hull.
if self._node.callDecoration("isGroup"):
hull = Polygon(numpy.zeros((0, 2), dtype=numpy.int32))
for child in self._node.getChildren():
child_hull = child.callDecoration("getConvexHull")
if child_hull:
hull.setPoints(numpy.append(hull.getPoints(), child_hull.getPoints(), axis = 0))
if hull.getPoints().size < 3:
self._node.callDecoration("setConvexHull", None)
self._node.callDecoration("setConvexHullJob", None)
return
else:
if not self._node.getMeshData():
return
mesh = self._node.getMeshData()
vertex_data = mesh.getTransformed(self._node.getWorldTransformation()).getVertices()
# Don't use data below 0. TODO; We need a better check for this as this gives poor results for meshes with long edges.
vertex_data = vertex_data[vertex_data[:,1]>0]
hull = Polygon(numpy.rint(vertex_data[:, [0, 2]]).astype(int))
# First, calculate the normal convex hull around the points
hull = hull.getConvexHull()
# Then, do a Minkowski hull with a simple 1x1 quad to outset and round the normal convex hull.
# This is done because of rounding errors.
hull = hull.getMinkowskiHull(Polygon(numpy.array([[-1, -1], [-1, 1], [1, 1], [1, -1]], numpy.float32)))
settings = Application.getInstance().getMachineManager().getActiveMachineInstance()
if settings.getSettingValueByKey("print_sequence") == "One at a time" and not self._node.getParent().callDecoration("isGroup"):
# Printing one at a time and it's not an object in a group
self._node.callDecoration("setConvexHullBoundary", copy.deepcopy(hull))
head_hull = hull.getMinkowskiHull(Polygon(numpy.array(settings.getSettingValueByKey("machine_head_with_fans_polygon"),numpy.float32)))
self._node.callDecoration("setConvexHullHead", head_hull)
hull = hull.getMinkowskiHull(Polygon(numpy.array(settings.getSettingValueByKey("machine_head_polygon"),numpy.float32)))
hull_node = ConvexHullNode.ConvexHullNode(self._node, hull, Application.getInstance().getController().getScene().getRoot())
self._node.callDecoration("setConvexHullNode", hull_node)
self._node.callDecoration("setConvexHull", hull)
self._node.callDecoration("setConvexHullJob", None)
if self._node.getParent().callDecoration("isGroup"):
job = self._node.getParent().callDecoration("getConvexHullJob")
if job:
job.cancel()
self._node.getParent().callDecoration("setConvexHull", None)
hull_node = self._node.getParent().callDecoration("getConvexHullNode")
if hull_node:
hull_node.setParent(None)