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Update documentation & code cleanup

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This commit is contained in:
Jaime van Kessel 2016-04-08 14:26:28 +02:00
parent 4c233e75f4
commit 97d16ae3bd
7 changed files with 63 additions and 51 deletions
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25
cura/ConvexHullNode.py
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@ -5,11 +5,15 @@ from UM.Scene.SceneNode import SceneNode
from UM.Resources import Resources
from UM.Math.Color import Color
from UM.Math.Vector import Vector
from UM.Mesh.MeshBuilder import MeshBuilder #To create a mesh to display the convex hull with.
from UM.Mesh.MeshBuilder import MeshBuilder # To create a mesh to display the convex hull with.
from UM.View.GL.OpenGL import OpenGL
class ConvexHullNode(SceneNode):
## Convex hull node is a special type of scene node that is used to display a 2D area, to indicate the
# location an object uses on the buildplate. This area (or area's in case of one at a time printing) is
# then displayed as a transparent shadow.
def __init__(self, node, hull, parent = None):
super().__init__(parent)
@ -22,18 +26,22 @@ class ConvexHullNode(SceneNode):
self._inherit_orientation = False
self._inherit_scale = False
# Color of the drawn convex hull
self._color = Color(35, 35, 35, 128)
self._mesh_height = 0.1 #The y-coordinate of the convex hull mesh. Must not be 0, to prevent z-fighting.
# The y-coordinate of the convex hull mesh. Must not be 0, to prevent z-fighting.
self._mesh_height = 0.1
# The node this mesh is "watching"
self._node = node
self._node.transformationChanged.connect(self._onNodePositionChanged)
self._node.parentChanged.connect(self._onNodeParentChanged)
self._node.decoratorsChanged.connect(self._onNodeDecoratorsChanged)
self._onNodeDecoratorsChanged(self._node)
self._convex_hull_head_mesh = None
self._hull = hull
hull_points = self._hull.getPoints() # TODO: @UnusedVariable
hull_mesh = self.createHullMesh(self._hull.getPoints())
if hull_mesh:
self.setMeshData(hull_mesh)
@ -41,18 +49,21 @@ class ConvexHullNode(SceneNode):
if convex_hull_head:
self._convex_hull_head_mesh = self.createHullMesh(convex_hull_head.getPoints())
## Actually create the mesh from the hullpoints
# /param hull_points list of xy values
# /return meshData
def createHullMesh(self, hull_points):
#Input checking.
# Input checking.
if len(hull_points) < 3:
return None
mesh_builder = MeshBuilder()
point_first = Vector(hull_points[0][0], self._mesh_height, hull_points[0][1])
point_previous = Vector(hull_points[1][0], self._mesh_height, hull_points[1][1])
for point in hull_points[2:]: #Add the faces in the order of a triangle fan.
for point in hull_points[2:]: # Add the faces in the order of a triangle fan.
point_new = Vector(point[0], self._mesh_height, point[1])
mesh_builder.addFace(point_first, point_previous, point_new, color = self._color)
point_previous = point_new #Prepare point_previous for the next triangle.
point_previous = point_new # Prepare point_previous for the next triangle.
return mesh_builder.getData()
@ -75,7 +86,7 @@ class ConvexHullNode(SceneNode):
if node.callDecoration("getConvexHull"):
node.callDecoration("setConvexHull", None)
node.callDecoration("setConvexHullNode", None)
self.setParent(None)
self.setParent(None) # Garbage collection should delete this node after a while.
def _onNodeParentChanged(self, node):
if node.getParent():