def test_multipleItemsRename(self, objects_model):
node1 = SceneNode()
node2 = SceneNode()
result = objects_model._renameNodes({"zomg": _NodeInfo(nodes_to_rename=[node1, node2])})
assert result == [node1, node2]
assert node1.getName() == "zomg(1)"
assert node2.getName() == "zomg(2)"
def read(self, file_name):
mesh_builder = MeshBuilder()
scene_node = SceneNode()
self.load_file(file_name, mesh_builder, _use_numpystl = use_numpystl)
mesh = mesh_builder.build()
if use_numpystl:
verts = mesh.getVertices()
# In some cases numpy stl reads incorrectly and the result is that the Z values are all 0
# Add new error cases if you find them.
if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
# Something may have gone wrong in numpy stl, start over without numpy stl
Logger.log("w", "All Z coordinates are the same using numpystl, trying again without numpy stl.")
mesh_builder = MeshBuilder()
self.load_file(file_name, mesh_builder, _use_numpystl = False)
mesh = mesh_builder.build()
verts = mesh.getVertices()
if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
Logger.log("e", "All Z coordinates are still the same without numpy stl... let's hope for the best")
if mesh_builder.getVertexCount() == 0:
Logger.log("d", "File did not contain valid data, unable to read.")
return None # We didn't load anything.
scene_node.setMeshData(mesh)
Logger.log("d", "Loaded a mesh with %s vertices", mesh_builder.getVertexCount())
return scene_node
def _onSceneChangedDelayed(self, scene_node: SceneNode) -> None:
# Ignore any changes that are not related to sliceable objects
if not isinstance(scene_node, SceneNode) \
or not scene_node.callDecoration("isSliceable") \
or not scene_node.callDecoration("getBuildPlateNumber") == self._active_build_plate:
return
self._change_timer.start()
def read(self, file_name):
mesh_builder = MeshBuilder()
scene_node = SceneNode()
if use_numpystl:
self._loadWithNumpySTL(file_name, mesh_builder)
else:
f = open(file_name, "rb")
if not self._loadBinary(mesh_builder, f):
f.close()
f = open(file_name, "rt")
try:
self._loadAscii(mesh_builder, f)
except UnicodeDecodeError:
return None
f.close()
Job.yieldThread() # Yield somewhat to ensure the GUI has time to update a bit.
mesh_builder.calculateNormals(fast = True)
mesh_builder.setFileName(file_name)
mesh = mesh_builder.build()
Logger.log("d", "Loaded a mesh with %s vertices", mesh_builder.getVertexCount())
scene_node.setMeshData(mesh)
return scene_node
def initialize(self, parent: SceneNode, step=None, callback=None):
parent.addChild(self)
mesh_data = parent.getMeshData()
if mesh_data:
Logger.log(
'd', 'Compute interactive mesh from SceneNode {}'.format(
parent.getName()))
if mesh_data.getVertexCount() < 1000:
self._interactive_mesh = makeInteractiveMesh(mesh_data)
if step:
self.loadStep(step)
self.setOrigin()
if callback:
callback()
else:
job = AnalyzeMeshJob(mesh_data, step, callback)
job.finished.connect(self._process_mesh_analysis)
self._mesh_analyzing_message = Message(
title=i18n_catalog.i18n("Smart Slice"),
text=i18n_catalog.i18n(
"Analyzing geometry - this may take a few moments"),
progress=-1,
dismissable=False,
lifetime=0,
use_inactivity_timer=False)
self._mesh_analyzing_message.show()
job.start()
self.rootChanged.emit(self)
def read(self, file_name):
mesh_builder = MeshBuilder()
scene_node = SceneNode()
if use_numpystl:
self._loadWithNumpySTL(file_name, mesh_builder)
else:
f = open(file_name, "rb")
if not self._loadBinary(mesh_builder, f):
f.close()
f = open(file_name, "rt")
try:
self._loadAscii(mesh_builder, f)
except UnicodeDecodeError:
return None
f.close()
Job.yieldThread() # Yield somewhat to ensure the GUI has time to update a bit.
mesh_builder.calculateNormals(fast = True)
mesh = mesh_builder.build()
Logger.log("d", "Loaded a mesh with %s vertices", mesh_builder.getVertexCount())
scene_node.setMeshData(mesh)
return scene_node
def _reloadJobFinished(self, replaced_node: SceneNode, job: ReadMeshJob) -> None:
for node in job.getResult():
mesh_data = node.getMeshData()
if mesh_data:
replaced_node.setMeshData(mesh_data)
else:
Logger.log("w", "Could not find a mesh in reloaded node.")
def _read(self, file_name):
"""Decide if we need to use ascii or binary in order to read file"""
mesh_builder = MeshBuilder()
scene_node = SceneNode()
self.load_file(file_name, mesh_builder, _use_numpystl = use_numpystl)
mesh = mesh_builder.build()
if use_numpystl:
verts = mesh.getVertices()
# In some cases numpy stl reads incorrectly and the result is that the Z values are all 0
# Add new error cases if you find them.
if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
# Something may have gone wrong in numpy stl, start over without numpy stl
Logger.log("w", "All Z coordinates are the same using numpystl, trying again without numpy stl.")
mesh_builder = MeshBuilder()
self.load_file(file_name, mesh_builder, _use_numpystl = False)
mesh = mesh_builder.build()
verts = mesh.getVertices()
if numpy.amin(verts[:, 1]) == numpy.amax(verts[:, 1]):
Logger.log("e", "All Z coordinates are still the same without numpy stl... let's hope for the best")
if mesh_builder.getVertexCount() == 0:
Logger.log("d", "File did not contain valid data, unable to read.")
return None # We didn't load anything.
scene_node.setMeshData(mesh)
Logger.log("d", "Loaded a mesh with %s vertices", mesh_builder.getVertexCount())
return scene_node
def test_singleItemRenameWithIndex(self, objects_model):
node = SceneNode()
objects_model._renameNodes({
"zomg":
_NodeInfo(index_to_node={1: node}, nodes_to_rename=[node])
})
assert node.getName() == "zomg(2)"
def test_getConvexHullPrintingMesh(convex_hull_decorator):
node = SceneNode()
node.addDecorator(PrintingDecorator())
with patch("UM.Application.Application.getInstance", MagicMock(return_value=mocked_application)):
convex_hull_decorator.setNode(node)
convex_hull_decorator._compute2DConvexHull = MagicMock(return_value = Polygon.approximatedCircle(10))
assert convex_hull_decorator.getConvexHull() == Polygon.approximatedCircle(10)
def test_getConvexHulLBoundaryPrintingMesh(convex_hull_decorator):
node = SceneNode()
node.addDecorator(PrintingDecorator())
with patch("UM.Application.Application.getInstance", MagicMock(return_value=mocked_application)):
convex_hull_decorator.setNode(node)
# Should still be None, since print sequence is not one at a time
assert convex_hull_decorator.getConvexHullBoundary() is None
def test_getConvexHullBoundaryNotPrintingMesh(convex_hull_decorator):
node = SceneNode()
node.addDecorator(NonPrintingDecorator())
with patch("UM.Application.Application.getInstance",
MagicMock(return_value=mocked_application)):
convex_hull_decorator.setNode(node)
assert convex_hull_decorator.getConvexHullBoundary() is None
def read(self, file_name):
self._dxf = DXFObjectReader.DXFObjectReader(open(file_name, "rt"))
self._mesh = MeshData()
for obj in self._dxf:
if obj.getName() == "SECTION":
if obj.get(2) == "ENTITIES":
self._handleEntities()
elif obj.get(2) == "TABLES":
self._handleTables()
else:
Logger.log("d", "DXF: Got unknown section: %s", obj.get(2))
for obj in self._dxf:
if obj.getName() == "ENDSEC":
break
else:
Logger.log("d", "DXF: %s", obj)
elif obj.getName() == "EOF":
pass
else:
Logger.log("e", "DXF: Unexpected object: %s", obj)
#self._mesh.calculateNormals()
node = SceneNode()
node.setMeshData(self._mesh)
return node
def _reloadJobFinished(self, replaced_node: SceneNode, job: ReadMeshJob) -> None:
for node in job.getResult():
mesh_data = node.getMeshData()
if mesh_data:
replaced_node.setMeshData(mesh_data)
else:
Logger.log("w", "Could not find a mesh in reloaded node.")
def _checkHit(self, a: SceneNode, b: SceneNode) -> bool:
"""Checks if a can be printed before b
:param a: node
:param b: node
:return: true if a can be printed before b
"""
if a == b:
return False
a_hit_hull = a.callDecoration("getConvexHullBoundary")
b_hit_hull = b.callDecoration("getConvexHullHeadFull")
overlap = a_hit_hull.intersectsPolygon(b_hit_hull)
if overlap:
return True
# Adhesion areas must never overlap, regardless of printing order
# This would cause over-extrusion
a_hit_hull = a.callDecoration("getAdhesionArea")
b_hit_hull = b.callDecoration("getAdhesionArea")
overlap = a_hit_hull.intersectsPolygon(b_hit_hull)
if overlap:
return True
else:
return False
def test_relativeScale():
node = SceneNode()
op = ScaleOperation(node, Vector(2, 2, 2), set_scale=True)
op.redo()
op2 = ScaleOperation(node, Vector(1, 2, 3), relative_scale=True)
op2.redo()
assert node.getScale() == Vector(3, 4, 5)
def _updateNodeListeners(self, node: SceneNode):
per_mesh_stack = node.callDecoration("getStack")
if per_mesh_stack:
per_mesh_stack.propertyChanged.connect(self._onSettingPropertyChanged)
active_extruder_changed = node.callDecoration("getActiveExtruderChangedSignal")
if active_extruder_changed is not None:
active_extruder_changed.connect(self._updateDisallowedAreasAndRebuild)
self._updateDisallowedAreasAndRebuild()
def test_addScale():
node = SceneNode()
op = ScaleOperation(node, Vector(1, 2, 3), set_scale = True)
op.redo()
op2 = ScaleOperation(node, Vector(1, 2, 3), add_scale = True)
op2.redo()
assert node.getScale() == Vector(2, 4, 6)
def test_addScale():
node = SceneNode()
op = ScaleOperation(node, Vector(1, 2, 3), set_scale=True)
op.redo()
op2 = ScaleOperation(node, Vector(1, 2, 3), add_scale=True)
op2.redo()
assert node.getScale() == Vector(2, 4, 6)
def test_getConvexHulLBoundaryPrintingMesh(convex_hull_decorator):
node = SceneNode()
node.addDecorator(PrintingDecorator())
with patch("UM.Application.Application.getInstance",
MagicMock(return_value=mocked_application)):
convex_hull_decorator.setNode(node)
# Should still be None, since print sequence is not one at a time
assert convex_hull_decorator.getConvexHullBoundary() is None
def _updateNodeListeners(self, node: SceneNode):
per_mesh_stack = node.callDecoration("getStack")
if per_mesh_stack:
per_mesh_stack.propertyChanged.connect(self._onSettingPropertyChanged)
active_extruder_changed = node.callDecoration("getActiveExtruderChangedSignal")
if active_extruder_changed is not None:
active_extruder_changed.connect(self._updateDisallowedAreasAndRebuild)
self._updateDisallowedAreasAndRebuild()
def test_relativeScale():
node = SceneNode()
op = ScaleOperation(node, Vector(2, 2, 2), set_scale=True)
op.redo()
op2 = ScaleOperation(node, Vector(1, 2, 3), relative_scale=True)
op2.redo()
assert node.getScale() == Vector(3, 4, 5)
def _onSceneChanged(self, scene_node: SceneNode) -> None:
# Ignore any changes that are not related to sliceable objects
if not isinstance(scene_node, SceneNode)\
or not scene_node.callDecoration("isSliceable")\
or not scene_node.callDecoration("getBuildPlateNumber") == self._active_build_plate:
return
self.setToZeroPrintInformation(self._active_build_plate)
def test_getSelectedObject(self):
node_1 = SceneNode()
node_2 = SceneNode()
Selection.add(node_1)
Selection.add(node_2)
assert Selection.getSelectedObject(0) == node_1
assert Selection.getSelectedObject(1) == node_2
assert Selection.getSelectedObject(3) is None
def _subdivide(self, mesh, plane):
start_time = time.time()
plane_mesh_data = plane.getMeshData()
plane_vertices = plane_mesh_data.getVertices()
plane_face = [plane_vertices[0], plane_vertices[1], plane_vertices[2]]
builders = [MeshBuilder(), MeshBuilder()]
mesh_data = mesh.getMeshData()
vertices = mesh_data.getVertices()
indices = mesh_data.getIndices()
faces = []
if indices:
for index_array in indices:
faces.append([
vertices[index_array[0]], vertices[index_array[1]],
vertices[index_array[2]]
])
else:
for i in range(0, len(vertices), 3):
faces.append([vertices[i], vertices[i + 1], vertices[i + 2]])
for f in faces:
intersection_type = self.check_intersection_with_triangle(
plane_face, f)
if intersection_type is None or (
intersection_type is not None and intersection_type[0]
in [IntersectionType.Point, IntersectionType.Edge]):
side = self.check_plane_side(plane_face, f)
if side is not None:
self.add_face_to_builder(builders[side], f)
else:
Logger.log("w", "Invalid face detected: " + str(f))
elif intersection_type[0] == IntersectionType.Face:
self.add_face_to_builder(builders[0], f)
self.add_face_to_builder(builders[1], f)
elif intersection_type[0] == IntersectionType.Segment:
new_faces = self.split_triangle(f, intersection_type[1])
for new_face in new_faces:
self.add_face_to_builder(
builders[self.check_plane_side(plane_face, new_face)],
new_face)
elif intersection_type[0] == IntersectionType.PointAndSegment:
new_faces = self.split_triangle_in_one_segment(
f, intersection_type[1])
for new_face in new_faces:
self.add_face_to_builder(
builders[self.check_plane_side(plane_face, new_face)],
new_face)
nodes = [SceneNode(), SceneNode()]
for n in range(len(nodes)):
builders[n].calculateNormals()
nodes[n].setMeshData(builders[n].build())
nodes[n].setSelectable(True)
nodes[n].setScale(mesh.getScale())
Logger.log(
"w",
i18n_catalog.i18n("Subdivision took %f seconds") %
(time.time() - start_time))
return nodes[0], nodes[1]
def __init__(self):
super().__init__() # Call super to make multiple inheritance work.
self._root = SceneNode(name= "Root")
self._root.setCalculateBoundingBox(False)
self._connectSignalsRoot()
self._active_camera = None
self._ignore_scene_changes = False
self._lock = threading.Lock()
def test_setSimpleScale():
node = SceneNode()
op = ScaleOperation(node, Vector(1, 2, 3), set_scale=True)
op.redo()
assert node.getScale() == Vector(1, 2, 3)
op.undo()
assert node.getScale() == Vector(1, 1, 1)
def test_setSimpleScale():
node = SceneNode()
op = ScaleOperation(node, Vector(1, 2, 3), set_scale = True)
op.redo()
assert node.getScale() == Vector(1, 2, 3)
op.undo()
assert node.getScale() == Vector(1, 1, 1)
def _onSceneChanged(self, source: SceneNode) -> None:
if not isinstance(source, SceneNode):
return
# This case checks if the source node is a node that contains GCode. In this case the
# current layer data is removed so the previous data is not rendered - CURA-4821
if source.callDecoration("isBlockSlicing") and source.callDecoration(
"getLayerData"):
self._stored_optimized_layer_data = {}
build_plate_changed = set()
source_build_plate_number = source.callDecoration(
"getBuildPlateNumber")
if source == self._scene.getRoot():
# we got the root node
num_objects = self._numObjectsPerBuildPlate()
for build_plate_number in list(
self._last_num_objects.keys()) + list(num_objects.keys()):
if build_plate_number not in self._last_num_objects or num_objects[
build_plate_number] != self._last_num_objects[
build_plate_number]:
self._last_num_objects[build_plate_number] = num_objects[
build_plate_number]
build_plate_changed.add(build_plate_number)
else:
# we got a single scenenode
if not source.callDecoration("isGroup"):
mesh_data = source.getMeshData()
if mesh_data is None or mesh_data.getVertices() is None:
return
# There are some SceneNodes that do not have any build plate associated, then do not add to the list.
if source_build_plate_number is not None:
build_plate_changed.add(source_build_plate_number)
if not build_plate_changed:
return
if self._tool_active:
# do it later, each source only has to be done once
if source not in self._postponed_scene_change_sources:
self._postponed_scene_change_sources.append(source)
return
self.stopSlicing()
for build_plate_number in build_plate_changed:
if build_plate_number not in self._build_plates_to_be_sliced:
self._build_plates_to_be_sliced.append(build_plate_number)
self.printDurationMessage.emit(source_build_plate_number, {}, [])
self.processingProgress.emit(0.0)
self.setState(BackendState.NotStarted)
# if not self._use_timer:
# With manually having to slice, we want to clear the old invalid layer data.
self._clearLayerData(build_plate_changed)
self._invokeSlice()
def test_getConvexHullPrintingMesh(convex_hull_decorator):
node = SceneNode()
node.addDecorator(PrintingDecorator())
with patch("UM.Application.Application.getInstance",
MagicMock(return_value=mocked_application)):
convex_hull_decorator.setNode(node)
convex_hull_decorator._compute2DConvexHull = MagicMock(
return_value=Polygon.approximatedCircle(10))
assert convex_hull_decorator.getConvexHull() == Polygon.approximatedCircle(
10)
def test_selectionCount(self):
assert self.proxy.selectionCount == 0
node_1 = SceneNode()
Selection.add(node_1)
assert self.proxy.selectionCount == 1
node_2 = SceneNode()
Selection.add(node_2)
assert self.proxy.selectionCount == 2
def test_getSelectionCenter(self):
node_1 = SceneNode()
node_1.getBoundingBox = MagicMock(return_value = AxisAlignedBox(Vector(0, 0, 0), Vector(10, 20, 30)))
Selection.add(node_1)
assert Selection.getSelectionCenter() == Vector(5, 10, 15)
node_2 = SceneNode()
node_2.getBoundingBox = MagicMock(return_value=AxisAlignedBox(Vector(0, 0, 0), Vector(20, 30, 40)))
Selection.add(node_2)
assert Selection.getSelectionCenter() == Vector(10, 15, 20)
def test_clearSelection(self):
node_1 = SceneNode()
node_2 = SceneNode()
Selection.add(node_1)
Selection.add(node_2)
# Ensure that the objects we want selected are selected
assert Selection.getAllSelectedObjects() == [node_1, node_2]
Selection.clear()
assert Selection.getAllSelectedObjects() == []
def findNodePlacement(self,
node: SceneNode,
offset_shape_arr: ShapeArray,
hull_shape_arr: ShapeArray,
step=1):
best_spot = self.bestSpot(hull_shape_arr,
start_prio=self._last_priority,
step=step)
x, y = best_spot.x, best_spot.y
# Save the last priority.
self._last_priority = best_spot.priority
# Ensure that the object is above the build platform
node.removeDecorator(ZOffsetDecorator.ZOffsetDecorator)
if node.getBoundingBox():
center_y = node.getWorldPosition().y - node.getBoundingBox().bottom
else:
center_y = 0
if x is not None: # We could find a place
node.setPosition(Vector(x, center_y, y))
found_spot = True
self.place(x, y, offset_shape_arr) # place the object in arranger
else:
Logger.log("d", "Could not find spot!"),
found_spot = False
node.setPosition(Vector(200, center_y, 100))
return found_spot
def test_getConvexHulLBoundaryPrintingMeshOneAtATime(convex_hull_decorator):
node = SceneNode()
node.addDecorator(PrintingDecorator())
with patch("UM.Application.Application.getInstance", MagicMock(return_value=mocked_application)):
convex_hull_decorator.setNode(node)
convex_hull_decorator._global_stack = MagicMock()
convex_hull_decorator._global_stack.getProperty = MagicMock(return_value = "one_at_a_time")
# In this test we don't care for the result of the function, just that the convex hull computation is called.
convex_hull_decorator._compute2DConvexHull = MagicMock()
convex_hull_decorator.getConvexHullBoundary()
convex_hull_decorator._compute2DConvexHull.assert_called_once_with()
def test_SimpleRedoUndo():
node = SceneNode()
parent_node = SceneNode()
operation = AddSceneNodeOperation(node, parent_node)
operation.redo()
assert node.getParent() == parent_node
operation.undo()
assert node.getParent() is None
def _reloadJobFinished(self, replaced_node: SceneNode, job: ReadMeshJob) -> None:
"""Triggered when reloading has finished.
This then puts the resulting mesh data in the node.
"""
for node in job.getResult():
mesh_data = node.getMeshData()
if mesh_data:
replaced_node.setMeshData(mesh_data)
else:
Logger.log("w", "Could not find a mesh in reloaded node.")
def test_UndoRedoWithSelection():
node = SceneNode()
parent_node = SceneNode()
Selection.add(node)
operation = AddSceneNodeOperation(node, parent_node)
operation.undo()
assert not Selection.isSelected(node)
operation.redo()
assert Selection.isSelected(node)
def test_compute2DConvexHullMeshData(convex_hull_decorator):
node = SceneNode()
mb = MeshBuilder()
mb.addCube(10,10,10)
node.setMeshData(mb.build())
convex_hull_decorator._getSettingProperty = MagicMock(return_value = 0)
with patch("UM.Application.Application.getInstance", MagicMock(return_value=mocked_application)):
convex_hull_decorator.setNode(node)
assert convex_hull_decorator._compute2DConvexHull() == Polygon([[5.0,-5.0], [-5.0,-5.0], [-5.0,5.0], [5.0,5.0]])
def setUp(self):
# Called before the first testfunction is executed
self._scene = Scene()
self._scene_object = SceneNode()
self._scene_object2 = SceneNode()
self._scene_object.addChild(self._scene_object2)
self._scene.getRoot().addChild(self._scene_object)
temp_matrix = Matrix()
temp_matrix.setByTranslation(Vector(10, 10, 10))
self._scene_object2.setLocalTransformation(deepcopy(temp_matrix))
temp_matrix.setByScaleFactor(0.5)
self._scene_object.setLocalTransformation(temp_matrix)
def setUp(self):
# Called before the first testfunction is executed
self._scene = Scene()
self._scene_object = SceneNode()
self._scene_object2 = SceneNode()
self._scene_object.addChild(self._scene_object2)
self._scene.getRoot().addChild(self._scene_object)
temp_matrix = Matrix()
temp_matrix.setByTranslation(Vector(10,10,10))
self._scene_object2.setLocalTransformation(deepcopy(temp_matrix))
temp_matrix.setByScaleFactor(0.5)
self._scene_object.setLocalTransformation(temp_matrix)
def test_ignoreSceneChanges():
scene = Scene()
scene.sceneChanged.emit = MagicMock()
scene.setIgnoreSceneChanges(ignore_scene_changes=True)
root = scene.getRoot()
root.addChild(SceneNode())
assert scene.sceneChanged.emit.call_count == 0
scene.setIgnoreSceneChanges(ignore_scene_changes=False)
root.addChild(SceneNode())
assert scene.sceneChanged.emit.call_count == 2
def test_removeChildren(self):
node1 = SceneNode()
node2 = SceneNode()
node1.addChild(node2)
assert node1.hasChildren()
node1.removeAllChildren()
assert not node1.hasChildren()
def test_scaleWorld(self):
node1 = SceneNode()
node2 = SceneNode(node1)
node2.scale(Vector(1.5,1.,1.))
node2.translate(Vector(10,10,10))
self.assertEqual(node2.getWorldPosition(), Vector(15,10,10))
node2.scale(Vector(1.5,1,1))
self.assertEqual(node2.getWorldPosition(), Vector(15,10,10))
def __init__(self, node: SceneNode, mesh_data: MeshData, name: str = "") -> None:
super().__init__()
self._node = node
self._old_mesh_data = node.getMeshData()
self._old_name = node.getName()
self._new_mesh_data = mesh_data
self._new_name = name
if mesh_data.getVertices != None:
self.redo()
def test_getConvexHulLBoundaryPrintingMeshOneAtATime(convex_hull_decorator):
node = SceneNode()
node.addDecorator(PrintingDecorator())
with patch("UM.Application.Application.getInstance",
MagicMock(return_value=mocked_application)):
convex_hull_decorator.setNode(node)
convex_hull_decorator._global_stack = MagicMock()
convex_hull_decorator._global_stack.getProperty = MagicMock(
return_value="one_at_a_time")
# In this test we don't care for the result of the function, just that the convex hull computation is called.
convex_hull_decorator._compute2DConvexHull = MagicMock()
convex_hull_decorator.getConvexHullBoundary()
convex_hull_decorator._compute2DConvexHull.assert_called_once_with()
def __init__(self) -> None:
super().__init__() # Call super to make multiple inheritance work.
from UM.Scene.SceneNode import SceneNode
self._root = SceneNode(name="Root")
self._root.setCalculateBoundingBox(False)
self._connectSignalsRoot()
self._active_camera = None # type: Optional[Camera]
self._ignore_scene_changes = False
self._lock = threading.Lock()
# Watching file for changes.
self._file_watcher = QFileSystemWatcher()
self._file_watcher.fileChanged.connect(self._onFileChanged)
def run(self):
objectIdMap = {}
new_node = SceneNode()
## Put all nodes in a dict identified by ID
for node in DepthFirstIterator(self._scene.getRoot()):
if type(node) is SceneNode and node.getMeshData():
if hasattr(node.getMeshData(), "layerData"):
self._scene.getRoot().removeChild(node)
else:
objectIdMap[id(node)] = node
settings = Application.getInstance().getActiveMachine()
layerHeight = settings.getSettingValueByKey("layer_height")
for object in self._message.objects:
try:
node = objectIdMap[object.id]
except KeyError:
continue
mesh = MeshData()
layerData = LayerData.LayerData()
for layer in object.layers:
for polygon in layer.polygons:
points = numpy.fromstring(polygon.points, dtype="i8") # Convert bytearray to numpy array
points = points.reshape((-1,2)) # We get a linear list of pairs that make up the points, so make numpy interpret them correctly.
points = numpy.asarray(points, dtype=numpy.float32)
points /= 1000
points = numpy.insert(points, 1, layer.id * layerHeight, axis = 1)
points[:,2] *= -1
if not settings.getSettingValueByKey("machine_center_is_zero"):
center = [settings.getSettingValueByKey("machine_width") / 2, 0.0, -settings.getSettingValueByKey("machine_depth") / 2]
points -= numpy.array(center)
#points = numpy.pad(points, ((0,0), (0,1)), "constant", constant_values=(0.0, 1.0))
#inverse = node.getWorldTransformation().getInverse().getData()
#points = points.dot(inverse)
#points = points[:,0:3]
layerData.addPolygon(layer.id, polygon.type, points)
# We are done processing all the layers we got from the engine, now create a mesh out of the data
layerData.build()
mesh.layerData = layerData
new_node.setMeshData(mesh)
new_node.setParent(self._scene.getRoot())
def _onSceneChanged(self, source: SceneNode) -> None:
if not isinstance(source, SceneNode):
return
# This case checks if the source node is a node that contains GCode. In this case the
# current layer data is removed so the previous data is not rendered - CURA-4821
if source.callDecoration("isBlockSlicing") and source.callDecoration("getLayerData"):
self._stored_optimized_layer_data = {}
build_plate_changed = set()
source_build_plate_number = source.callDecoration("getBuildPlateNumber")
if source == self._scene.getRoot():
# we got the root node
num_objects = self._numObjectsPerBuildPlate()
for build_plate_number in list(self._last_num_objects.keys()) + list(num_objects.keys()):
if build_plate_number not in self._last_num_objects or num_objects[build_plate_number] != self._last_num_objects[build_plate_number]:
self._last_num_objects[build_plate_number] = num_objects[build_plate_number]
build_plate_changed.add(build_plate_number)
else:
# we got a single scenenode
if not source.callDecoration("isGroup"):
mesh_data = source.getMeshData()
if mesh_data is None or mesh_data.getVertices() is None:
return
# There are some SceneNodes that do not have any build plate associated, then do not add to the list.
if source_build_plate_number is not None:
build_plate_changed.add(source_build_plate_number)
if not build_plate_changed:
return
if self._tool_active:
# do it later, each source only has to be done once
if source not in self._postponed_scene_change_sources:
self._postponed_scene_change_sources.append(source)
return
self.stopSlicing()
for build_plate_number in build_plate_changed:
if build_plate_number not in self._build_plates_to_be_sliced:
self._build_plates_to_be_sliced.append(build_plate_number)
self.printDurationMessage.emit(source_build_plate_number, {}, [])
self.processingProgress.emit(0.0)
self.setState(BackendState.NotStarted)
# if not self._use_timer:
# With manually having to slice, we want to clear the old invalid layer data.
self._clearLayerData(build_plate_changed)
self._invokeSlice()
def _shouldNodeBeHandled(self, node: SceneNode) -> bool:
is_group = bool(node.callDecoration("isGroup"))
if not node.callDecoration("isSliceable") and not is_group:
return False
parent = node.getParent()
if parent and parent.callDecoration("isGroup"):
return False # Grouped nodes don't need resetting as their parent (the group) is resetted)
node_build_plate_number = node.callDecoration("getBuildPlateNumber")
if Application.getInstance().getPreferences().getValue("view/filter_current_build_plate") and node_build_plate_number != self._build_plate_number:
return False
return True
def findNodePlacement(self, node: SceneNode, offset_shape_arr: ShapeArray, hull_shape_arr: ShapeArray, step = 1):
best_spot = self.bestSpot(
hull_shape_arr, start_prio = self._last_priority, step = step)
x, y = best_spot.x, best_spot.y
# Save the last priority.
self._last_priority = best_spot.priority
# Ensure that the object is above the build platform
node.removeDecorator(ZOffsetDecorator.ZOffsetDecorator)
bbox = node.getBoundingBox()
if bbox:
center_y = node.getWorldPosition().y - bbox.bottom
else:
center_y = 0
if x is not None: # We could find a place
node.setPosition(Vector(x, center_y, y))
found_spot = True
self.place(x, y, offset_shape_arr) # place the object in arranger
else:
Logger.log("d", "Could not find spot!"),
found_spot = False
node.setPosition(Vector(200, center_y, 100))
return found_spot
def test_getAllChildren(self):
parent_node = SceneNode()
child_node_1 = SceneNode()
child_node_2 = SceneNode()
parent_node.addChild(child_node_1)
parent_node.addChild(child_node_2)
child_1_of_child_node_1 = SceneNode()
child_2_of_child_node_1 = SceneNode()
child_node_1.addChild(child_1_of_child_node_1)
child_node_1.addChild(child_2_of_child_node_1)
child_1_of_child_node_2 = SceneNode()
child_node_2.addChild(child_1_of_child_node_2)
assert parent_node.getAllChildren() == [child_node_1, child_node_2, child_1_of_child_node_1, child_2_of_child_node_1, child_1_of_child_node_2]
def multiplyObject(self, object_id, count):
node = self.getController().getScene().findObject(object_id)
if node:
op = GroupedOperation()
for i in range(count):
new_node = SceneNode()
new_node.setMeshData(node.getMeshData())
new_node.setScale(node.getScale())
new_node.translate(Vector((i + 1) * node.getBoundingBox().width, 0, 0))
new_node.setSelectable(True)
op.addOperation(AddSceneNodeOperation(new_node, node.getParent()))
op.push()
def test_addRemoveDouble(self):
# Adding a child that's already a child of a node should not cause issues. Same for trying to remove one that isn't a child
node_1 = SceneNode()
node_2 = SceneNode()
# Should work
node_1.addChild(node_2)
# Should still work!
node_1.addChild(node_2)
# This has already been tested somewhere else, so no problems are expected
node_1.removeChild(node_2)
# Doing it again shouldn't break.
node_1.removeChild(node_2)
def groupSelected(self):
group_node = SceneNode()
group_decorator = GroupDecorator()
group_node.addDecorator(group_decorator)
group_node.setParent(self.getController().getScene().getRoot())
center = Selection.getSelectionCenter()
group_node.setPosition(center)
group_node.setCenterPosition(center)
for node in Selection.getAllSelectedObjects():
world = node.getWorldPosition()
node.setParent(group_node)
node.setPosition(world - center)
for node in group_node.getChildren():
Selection.remove(node)
Selection.add(group_node)
def __init__(self):
super().__init__() # Call super to make multiple inheritance work.
self._root = SceneNode()
self._root.setCalculateBoundingBox(False)
self._connectSignalsRoot()
self._active_camera = None
self._lock = threading.Lock()
def test_scale(self):
node = SceneNode()
self.assertEqual(node.getScale(), Vector(1, 1, 1))
node.scale(Vector(1.5, 1.5, 1.5))
self.assertEqual(node.getScale(), Vector(1.5, 1.5, 1.5))
node.scale(Vector(1.5, 1.5, 1.5))
self.assertEqual(node.getScale(), Vector(2.25, 2.25, 2.25))
def test_rotate(self):
node = SceneNode()
self.assertEqual(node.getOrientation(), Quaternion())
node.rotate(Quaternion.fromAngleAxis(math.pi / 4, Vector.Unit_Z))
self.assertEqual(node.getOrientation(), Quaternion.fromAngleAxis(math.pi / 4, Vector.Unit_Z))
node.rotate(Quaternion.fromAngleAxis(math.pi / 4, Vector.Unit_Z))
self.assertEqual(node.getOrientation(), Quaternion.fromAngleAxis(math.pi / 2, Vector.Unit_Z))
def test_translate(self):
node = SceneNode()
self.assertEqual(node.getPosition(), Vector(0, 0, 0))
node.translate(Vector(0, 0, 10))
self.assertEqual(node.getPosition(), Vector(0, 0, 10))
node.translate(Vector(0, 0, 10))
self.assertEqual(node.getPosition(), Vector(0, 0, 20))
