Update documentation & code cleanup

cura/BuildVolume.py

@@ -15,6 +15,8 @@ from UM.View.GL.OpenGL import OpenGL
 
 import numpy
 
+
+##  Build volume is a special kind of node that is responsible for rendering the printable area & disallowed areas.
 class BuildVolume(SceneNode):
     VolumeOutlineColor = Color(12, 169, 227, 255)
 
@@ -72,6 +74,7 @@ class BuildVolume(SceneNode):
             renderer.queueNode(self, mesh = self._disallowed_area_mesh, shader = self._shader, transparent = True, backface_cull = True, sort = -9)
         return True
 
+    ##  Recalculates the build volume & disallowed areas.
     def rebuild(self):
         if self._width == 0 or self._height == 0 or self._depth == 0:
             return
@@ -127,9 +130,10 @@ class BuildVolume(SceneNode):
                     new_point = Vector(self._clamp(point[0], min_w, max_w), disallowed_area_height, self._clamp(point[1], min_d, max_d))
                     mb.addFace(first, previous_point, new_point, color = color)
                     previous_point = new_point
+
                 # Find the largest disallowed area to exclude it from the maximum scale bounds.
-                # This is a very nasty hack. This pretty much only works for UM machines. This disallowed area_size needs
-                # A -lot- of rework at some point in the future: TODO
+                # This is a very nasty hack. This pretty much only works for UM machines.
+                # This disallowed area_size needs a -lot- of rework at some point in the future: TODO
                 if numpy.min(points[:, 1]) >= 0: # This filters out all areas that have points to the left of the centre. This is done to filter the skirt area.
                     size = abs(numpy.max(points[:, 1]) - numpy.min(points[:, 1]))
                 else:
@@ -148,7 +152,7 @@ class BuildVolume(SceneNode):
         if profile:
             skirt_size = self._getSkirtSize(profile)
 
-        # As this works better for UM machines, we only add the dissallowed_area_size for the z direction.
+        # As this works better for UM machines, we only add the disallowed_area_size for the z direction.
         # This is probably wrong in all other cases. TODO!
         # The +1 and -1 is added as there is always a bit of extra room required to work properly.
         scale_to_max_bounds = AxisAlignedBox(
@@ -194,8 +198,6 @@ class BuildVolume(SceneNode):
             self._updateDisallowedAreas()
             self.rebuild()
 
-
-
     def _updateDisallowedAreas(self):
         if not self._active_instance or not self._active_profile:
             return
@@ -224,7 +226,7 @@ class BuildVolume(SceneNode):
 
                 areas.append(poly)
 
-        # Add the skirt areas arround the borders of the build plate.
+        # Add the skirt areas around the borders of the build plate.
         if skirt_size > 0:
             half_machine_width = self._active_instance.getMachineSettingValue("machine_width") / 2
             half_machine_depth = self._active_instance.getMachineSettingValue("machine_depth") / 2
@@ -259,6 +261,7 @@ class BuildVolume(SceneNode):
 
         self._disallowed_areas = areas
 
+    ##  Convenience function to calculate the size of the bed adhesion.
     def _getSkirtSize(self, profile):
         skirt_size = 0.0
 

cura/ConvexHullDecorator.py

@@ -1,17 +1,24 @@
 from UM.Scene.SceneNodeDecorator import SceneNodeDecorator
 from UM.Application import Application
 
+
+##  The convex hull decorator is a scene node decorator that adds the convex hull functionality to a scene node.
+#   If a scene node has a convex hull decorator, it will have a shadow in which other objects can not be printed.
 class ConvexHullDecorator(SceneNodeDecorator):
     def __init__(self):
         super().__init__()
         self._convex_hull = None
         
-        # In case of printing all at once this is the same as the convex hull. For one at the time this is the area without the head.
+        # In case of printing all at once this is the same as the convex hull.
+        # For one at the time this is the area without the head.
         self._convex_hull_boundary = None 
         
-        # In case of printing all at once this is the same as the convex hull. For one at the time this is area with intersection of mirrored head
+        # In case of printing all at once this is the same as the convex hull.
+        # For one at the time this is area with intersection of mirrored head
         self._convex_hull_head = None
-        # In case of printing all at once this is the same as the convex hull. For one at the time this is area with intersection of full head
+
+        # In case of printing all at once this is the same as the convex hull.
+        # For one at the time this is area with intersection of full head
         self._convex_hull_head_full = None
         
         self._convex_hull_node = None
@@ -27,19 +34,27 @@ class ConvexHullDecorator(SceneNodeDecorator):
         copy = ConvexHullDecorator()
         return copy
 
+    ##  Get the unmodified convex hull of the node
     def getConvexHull(self):
         return self._convex_hull
-    
+
+    ##  Get the convex hull of the node with the full head size
     def getConvexHullHeadFull(self):
         if not self._convex_hull_head_full:
             return self.getConvexHull()
         return self._convex_hull_head_full
 
+    ##  Get convex hull of the object + head size
+    #   In case of printing all at once this is the same as the convex hull.
+    #   For one at the time this is area with intersection of mirrored head
     def getConvexHullHead(self):
         if not self._convex_hull_head:
             return self.getConvexHull()
         return self._convex_hull_head
-    
+
+    ##  Get convex hull of the node
+    #   In case of printing all at once this is the same as the convex hull.
+    #   For one at the time this is the area without the head.
     def getConvexHullBoundary(self):
         if not self._convex_hull_boundary:
             return self.getConvexHull()

cura/ConvexHullJob.py

@@ -9,6 +9,7 @@ import numpy
 import copy
 from . import ConvexHullNode
 
+##  Job to async calculate the convex hull of a node.
 class ConvexHullJob(Job):
     def __init__(self, node):
         super().__init__()
@@ -38,7 +39,8 @@ class ConvexHullJob(Job):
                 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.
+            # 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))
 
@@ -55,6 +57,7 @@ class ConvexHullJob(Job):
                 # Printing one at a time and it's not an object in a group
                 self._node.callDecoration("setConvexHullBoundary", copy.deepcopy(hull))
                 head_and_fans = Polygon(numpy.array(profile.getSettingValue("machine_head_with_fans_polygon"), numpy.float32))
+
                 # Full head hull is used to actually check the order.
                 full_head_hull = hull.getMinkowskiHull(head_and_fans)
                 self._node.callDecoration("setConvexHullHeadFull", full_head_hull)
@@ -62,17 +65,19 @@ class ConvexHullJob(Job):
                 mirrored.mirror([0, 0], [0, 1]) #Mirror horizontally.
                 mirrored.mirror([0, 0], [1, 0]) #Mirror vertically.
                 head_and_fans = head_and_fans.intersectionConvexHulls(mirrored)
+
                 # Min head hull is used for the push free
                 min_head_hull = hull.getMinkowskiHull(head_and_fans)
                 self._node.callDecoration("setConvexHullHead", min_head_hull)
                 hull = hull.getMinkowskiHull(Polygon(numpy.array(profile.getSettingValue("machine_head_polygon"),numpy.float32)))
             else:
                 self._node.callDecoration("setConvexHullHead", None)
-        if self._node.getParent() is None: #Node was already deleted before job is done.
+        if self._node.getParent() is None:  # Node was already deleted before job is done.
             self._node.callDecoration("setConvexHullNode",None)
             self._node.callDecoration("setConvexHull", None)
             self._node.callDecoration("setConvexHullJob", None)
             return
+
         hull_node = ConvexHullNode.ConvexHullNode(self._node, hull, Application.getInstance().getController().getScene().getRoot())
         self._node.callDecoration("setConvexHullNode", hull_node)
         self._node.callDecoration("setConvexHull", hull)

cura/ConvexHullNode.py

@@ -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():

cura/CuraActions.py

@@ -4,6 +4,7 @@ from PyQt5.QtGui import QDesktopServices
 from UM.Event import CallFunctionEvent
 from UM.Application import Application
 
+
 class CuraActions(QObject):
     def __init__(self, parent = None):
         super().__init__(parent)

cura/CuraApplication.py

@@ -56,7 +56,8 @@ if platform.system() == "Linux": # Needed for platform.linux_distribution, which
 try:
     from cura.CuraVersion import CuraVersion
 except ImportError:
-    CuraVersion = "master" # [CodeStyle: Reflecting imported value]
+    CuraVersion = "master"  # [CodeStyle: Reflecting imported value]
+
 
 class CuraApplication(QtApplication):
     class ResourceTypes:
@@ -69,7 +70,7 @@ class CuraApplication(QtApplication):
         if not hasattr(sys, "frozen"):
             Resources.addSearchPath(os.path.join(os.path.abspath(os.path.dirname(__file__)), ".."))
 
-        self._open_file_queue = [] #Files to open when plug-ins are loaded.
+        self._open_file_queue = []  # Files to open when plug-ins are loaded.
 
         super().__init__(name = "cura", version = CuraVersion)
 
@@ -96,6 +97,8 @@ class CuraApplication(QtApplication):
         self._scene_boundingbox = AxisAlignedBox()
         self._job_name = None
         self._center_after_select = False
+        self._camera_animation = None
+        self._cura_actions = None
 
         self.getMachineManager().activeMachineInstanceChanged.connect(self._onActiveMachineChanged)
         self.getMachineManager().addMachineRequested.connect(self._onAddMachineRequested)
@@ -205,7 +208,7 @@ class CuraApplication(QtApplication):
 
             self.exec_()
 
-    #   Handle Qt events
+    ##   Handle Qt events
     def event(self, event):
         if event.type() == QEvent.FileOpen:
             if self._plugins_loaded:
@@ -215,6 +218,7 @@ class CuraApplication(QtApplication):
 
         return super().event(event)
 
+    ##  Get print information (duration / material used)
     def getPrintInformation(self):
         return self._print_information
 
@@ -585,30 +589,7 @@ class CuraApplication(QtApplication):
         return CuraSplashScreen.CuraSplashScreen()
 
     def _onActiveMachineChanged(self):
-        machine = self.getMachineManager().getActiveMachineInstance()
-        if machine:
-            pass
-            #Preferences.getInstance().setValue("cura/active_machine", machine.getName())
-
-            #self._volume.setWidth(machine.getSettingValueByKey("machine_width"))
-            #self._volume.setHeight(machine.getSettingValueByKey("machine_height"))
-            #self._volume.setDepth(machine.getSettingValueByKey("machine_depth"))
-
-            #disallowed_areas = machine.getSettingValueByKey("machine_disallowed_areas")
-            #areas = []
-            #if disallowed_areas:
-                #for area in disallowed_areas:
-                    #areas.append(Polygon(numpy.array(area, numpy.float32)))
-
-            #self._volume.setDisallowedAreas(areas)
-
-            #self._volume.rebuild()
-
-            #offset = machine.getSettingValueByKey("machine_platform_offset")
-            #if offset:
-                #self._platform.setPosition(Vector(offset[0], offset[1], offset[2]))
-            #else:
-                #self._platform.setPosition(Vector(0.0, 0.0, 0.0))
+        pass
 
     def _onFileLoaded(self, job):
         node = job.getResult()

cura/CuraVersion.py.in

@@ -1,4 +0,0 @@
-# Copyright (c) 2015 Ultimaker B.V.
-# Cura is released under the terms of the AGPLv3 or higher.
-
-CuraVersion = "@CURA_VERSION@"