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https://git.mirrors.martin98.com/https://github.com/Ultimaker/Cura
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73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
from UM.Scene.SceneNode import SceneNode
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from UM.Resources import Resources
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from UM.Math.Color import Color
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from UM.Math.Vector import Vector
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from UM.Mesh.MeshData import MeshData
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import numpy
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class ConvexHullNode(SceneNode):
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def __init__(self, node, hull, parent = None):
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super().__init__(parent)
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self.setCalculateBoundingBox(False)
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self._material = None
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self._original_parent = parent
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self._inherit_orientation = False
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self._inherit_scale = False
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self._node = node
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self._node.transformationChanged.connect(self._onNodePositionChanged)
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self._node.parentChanged.connect(self._onNodeParentChanged)
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#self._onNodePositionChanged(self._node)
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self._hull = hull
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hull_points = self._hull.getPoints()
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center = (hull_points.min(0) + hull_points.max(0)) / 2.0
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mesh = MeshData()
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mesh.addVertex(center[0], 0.1, center[1])
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for point in hull_points:
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mesh.addVertex(point[0], 0.1, point[1])
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indices = []
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for i in range(len(hull_points) - 1):
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indices.append([0, i + 1, i + 2])
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indices.append([0, mesh.getVertexCount() - 1, 1])
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mesh.addIndices(numpy.array(indices, numpy.int32))
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self.setMeshData(mesh)
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def render(self, renderer):
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if not self._material:
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self._material = renderer.createMaterial(Resources.getPath(Resources.ShadersLocation, 'basic.vert'), Resources.getPath(Resources.ShadersLocation, 'color.frag'))
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self._material.setUniformValue('u_color', Color(35, 35, 35, 128))
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renderer.queueNode(self, material = self._material, transparent = True)
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return True
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def _onNodePositionChanged(self, node):
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#self.setPosition(node.getWorldPosition())
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if hasattr(node, "_convex_hull"):
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delattr(node, "_convex_hull")
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self.setParent(None)
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#self._node.transformationChanged.disconnect(self._onNodePositionChanged)
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#self._node.parentChanged.disconnect(self._onNodeParentChanged)
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def _onNodeParentChanged(self, node):
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if node.getParent():
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self.setParent(self._original_parent)
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else:
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self.setParent(None)
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