Merge branch 'master' of github.com:Ultimaker/Cura

cura/CuraApplication.py

@@ -631,7 +631,7 @@ class CuraApplication(QtApplication):
     # Cura has multiple locations where instance containers need to be saved, so we need to handle this differently.
     def saveSettings(self):
         if not self.started or not self._save_data_enabled:
-            # Do not do saving during application start or when data should not be safed on quit.
+            # Do not do saving during application start or when data should not be saved on quit.
             return
         ContainerRegistry.getInstance().saveDirtyContainers()
         self.savePreferences()

cura/OneAtATimeIterator.py

@@ -1,112 +1,147 @@
-# Copyright (c) 2015 Ultimaker B.V.
+# Copyright (c) 2018 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
-from UM.Scene.Iterator import Iterator
-from UM.Scene.SceneNode import SceneNode
-from functools import cmp_to_key
-from UM.Application import Application
+import sys
+
+from shapely import affinity
+from shapely.geometry import Polygon
+
+from UM.Scene.Iterator.Iterator import Iterator
+from UM.Scene.SceneNode import SceneNode
+
+
+# Iterator that determines the object print order when one-at a time mode is enabled.
+#
+# In one-at-a-time mode, only one extruder can be enabled to print. In order to maximize the number of objects we can
+# print, we need to print from the corner that's closest to the extruder that's being used. Here is an illustration:
+#
+#  +--------------------------------+
+#  |                                |
+#  |                                |
+#  |                                |          - Rectangle represents the complete print head including fans, etc.
+#  |       X                X       |    y     - X's are the nozzles
+#  |      (1)              (2)      |    ^
+#  |                                |    |
+#  +--------------------------------+    +--> x
+#
+# In this case, the nozzles are symmetric, nozzle (1) is closer to the bottom left corner while (2) is closer to the
+# bottom right. If we use nozzle (1) to print, then we better off printing from the bottom left corner so the print
+# head will not collide into an object on its top-right side, which is a very large unused area. Following the same
+# logic, if we are printing with nozzle (2), then it's better to print from the bottom-right side.
+#
+# This iterator determines the print order following the rules above.
+#
+class OneAtATimeIterator(Iterator):
 
-## Iterator that returns a list of nodes in the order that they need to be printed
-#  If there is no solution an empty list is returned.
-#  Take note that the list of nodes can have children (that may or may not contain mesh data)
-class OneAtATimeIterator(Iterator.Iterator):
     def __init__(self, scene_node):
-        super().__init__(scene_node) # Call super to make multiple inheritence work.
-        self._hit_map = [[]]
+        from cura.CuraApplication import CuraApplication
+        self._global_stack = CuraApplication.getInstance().getGlobalContainerStack()
         self._original_node_list = []
-    
+
+        super().__init__(scene_node)  # Call super to make multiple inheritance work.
+
+    def getMachineNearestCornerToExtruder(self, global_stack):
+        head_and_fans_coordinates = global_stack.getHeadAndFansCoordinates()
+
+        used_extruder = None
+        for extruder in global_stack.extruders.values():
+            if extruder.isEnabled:
+                used_extruder = extruder
+                break
+
+        extruder_offsets = [used_extruder.getProperty("machine_nozzle_offset_x", "value"),
+                            used_extruder.getProperty("machine_nozzle_offset_y", "value")]
+
+        # find the corner that's closest to the origin
+        min_distance2 = sys.maxsize
+        min_coord = None
+        for coord in head_and_fans_coordinates:
+            x = coord[0] - extruder_offsets[0]
+            y = coord[1] - extruder_offsets[1]
+
+            distance2 = x**2 + y**2
+            if distance2 <= min_distance2:
+                min_distance2 = distance2
+                min_coord = coord
+
+        return min_coord
+
+    def _checkForCollisions(self) -> bool:
+        all_nodes = []
+        for node in self._scene_node.getChildren():
+            if not issubclass(type(node), SceneNode):
+                continue
+            convex_hull = node.callDecoration("getConvexHullHead")
+            if not convex_hull:
+                continue
+
+            bounding_box = node.getBoundingBox()
+            from UM.Math.Polygon import Polygon
+            bounding_box_polygon = Polygon([[bounding_box.left, bounding_box.front],
+                                            [bounding_box.left, bounding_box.back],
+                                            [bounding_box.right, bounding_box.back],
+                                            [bounding_box.right, bounding_box.front]])
+
+            all_nodes.append({"node": node,
+                              "bounding_box": bounding_box_polygon,
+                              "convex_hull": convex_hull})
+
+        has_collisions = False
+        for i, node_dict in enumerate(all_nodes):
+            for j, other_node_dict in enumerate(all_nodes):
+                if i == j:
+                    continue
+                if node_dict["bounding_box"].intersectsPolygon(other_node_dict["convex_hull"]):
+                    has_collisions = True
+                    break
+
+            if has_collisions:
+                break
+
+        return has_collisions
+
     def _fillStack(self):
+        min_coord = self.getMachineNearestCornerToExtruder(self._global_stack)
+        transform_x = -int(round(min_coord[0] / abs(min_coord[0])))
+        transform_y = -int(round(min_coord[1] / abs(min_coord[1])))
+
+        machine_size = [self._global_stack.getProperty("machine_width", "value"),
+                        self._global_stack.getProperty("machine_depth", "value")]
+
+        def flip_x(polygon):
+            tm2 = [-1, 0, 0, 1, 0, 0]
+            return affinity.affine_transform(affinity.translate(polygon, xoff = -machine_size[0]), tm2)
+
+        def flip_y(polygon):
+            tm2 = [1, 0, 0, -1, 0, 0]
+            return affinity.affine_transform(affinity.translate(polygon, yoff = -machine_size[1]), tm2)
+
+        if self._checkForCollisions():
+            self._node_stack = []
+            return
+
         node_list = []
         for node in self._scene_node.getChildren():
             if not issubclass(type(node), SceneNode):
                 continue
 
-            if node.callDecoration("getConvexHull"):
-                node_list.append(node)
+            convex_hull = node.callDecoration("getConvexHull")
+            if convex_hull:
+                xmin = min(x for x, _ in convex_hull._points)
+                xmax = max(x for x, _ in convex_hull._points)
+                ymin = min(y for _, y in convex_hull._points)
+                ymax = max(y for _, y in convex_hull._points)
 
+                convex_hull_polygon = Polygon.from_bounds(xmin, ymin, xmax, ymax)
+                if transform_x < 0:
+                    convex_hull_polygon = flip_x(convex_hull_polygon)
+                if transform_y < 0:
+                    convex_hull_polygon = flip_y(convex_hull_polygon)
 
-        if len(node_list) < 2:
-            self._node_stack = node_list[:]
-            return 
+                node_list.append({"node": node,
+                                  "min_coord": [convex_hull_polygon.bounds[0], convex_hull_polygon.bounds[1]],
+                                  })
 
-        # Copy the list
-        self._original_node_list = node_list[:]
-
-        ## Initialise the hit map (pre-compute all hits between all objects)
-        self._hit_map = [[self._checkHit(i,j) for i in node_list] for j in node_list]
-
-        # Check if we have to files that block eachother. If this is the case, there is no solution!
-        for a in range(0,len(node_list)):
-            for b in range(0,len(node_list)):
-                if a != b and self._hit_map[a][b] and self._hit_map[b][a]:
-                    return 
-
-        # Sort the original list so that items that block the most other objects are at the beginning.
-        # This does not decrease the worst case running time, but should improve it in most cases.
-        sorted(node_list, key = cmp_to_key(self._calculateScore))
-
-        todo_node_list = [_ObjectOrder([], node_list)]
-        while len(todo_node_list) > 0:
-            current = todo_node_list.pop()
-            for node in current.todo:
-                # Check if the object can be placed with what we have and still allows for a solution in the future
-                if not self._checkHitMultiple(node, current.order) and not self._checkBlockMultiple(node, current.todo):
-                    # We found a possible result. Create new todo & order list.
-                    new_todo_list = current.todo[:]
-                    new_todo_list.remove(node)
-                    new_order = current.order[:] + [node]
-                    if len(new_todo_list) == 0: 
-                        # We have no more nodes to check, so quit looking.
-                        todo_node_list = None
-                        self._node_stack = new_order
-
-                        return
-                    todo_node_list.append(_ObjectOrder(new_order, new_todo_list))
-        self._node_stack = [] #No result found!
-
-
-    # Check if first object can be printed before the provided list (using the hit map)
-    def _checkHitMultiple(self, node, other_nodes):
-        node_index = self._original_node_list.index(node)
-        for other_node in other_nodes:
-            other_node_index = self._original_node_list.index(other_node)
-            if self._hit_map[node_index][other_node_index]:
-                return True
-        return False
-
-    def _checkBlockMultiple(self, node, other_nodes):
-        node_index = self._original_node_list.index(node)
-        for other_node in other_nodes:
-            other_node_index = self._original_node_list.index(other_node)
-            if self._hit_map[other_node_index][node_index] and node_index != other_node_index:
-                return True
-        return False
-
-    ##  Calculate score simply sums the number of other objects it 'blocks'
-    def _calculateScore(self, a, b):
-        score_a = sum(self._hit_map[self._original_node_list.index(a)])
-        score_b = sum(self._hit_map[self._original_node_list.index(b)])
-        return score_a - score_b
-
-    #   Checks if A can be printed before B
-    def _checkHit(self, a, b):
-        if a == b:
-            return False
-
-        overlap = a.callDecoration("getConvexHullBoundary").intersectsPolygon(b.callDecoration("getConvexHullHeadFull"))
-        if overlap:
-            return True
-        else: 
-            return False
-
-
-## Internal object used to keep track of a possible order in which to print objects.      
-class _ObjectOrder():
-    def __init__(self, order, todo):
-        """
-        :param order:   List of indexes in which to print objects, ordered by printing order.
-        :param todo:    List of indexes which are not yet inserted into the order list.
-        """
-        self.order = order
-        self.todo = todo
+        node_list = sorted(node_list, key = lambda d: d["min_coord"])
 
+        self._node_stack = [d["node"] for d in node_list]

cura/Scene/ConvexHullDecorator.py

@@ -229,7 +229,7 @@ class ConvexHullDecorator(SceneNodeDecorator):
             return offset_hull
 
     def _getHeadAndFans(self):
-        return Polygon(numpy.array(self._global_stack.getProperty("machine_head_with_fans_polygon", "value"), numpy.float32))
+        return Polygon(numpy.array(self._global_stack.getHeadAndFansCoordinates(), numpy.float32))
 
     def _compute2DConvexHeadFull(self):
         return self._compute2DConvexHull().getMinkowskiHull(self._getHeadAndFans())

cura/Settings/GlobalStack.py

@@ -102,6 +102,9 @@ class GlobalStack(CuraContainerStack):
 
         # Handle the "resolve" property.
         #TODO: Why the hell does this involve threading?
+        # Answer: Because if multiple threads start resolving properties that have the same underlying properties that's
+        # related, without taking a note of which thread a resolve paths belongs to, they can bump into each other and
+        # generate unexpected behaviours.
         if self._shouldResolve(key, property_name, context):
             current_thread = threading.current_thread()
             self._resolving_settings[current_thread.name].add(key)
@@ -178,6 +181,9 @@ class GlobalStack(CuraContainerStack):
                 return False
         return True
 
+    def getHeadAndFansCoordinates(self):
+        return self.getProperty("machine_head_with_fans_polygon", "value")
+
 
 ## private:
 global_stack_mime = MimeType(

cura/Settings/MachineManager.py

@@ -21,9 +21,6 @@ from UM.Settings.SettingFunction import SettingFunction
 from UM.Signal import postponeSignals, CompressTechnique
 
 import cura.CuraApplication
-from cura.Machines.ContainerNode import ContainerNode #For typing.
-from cura.Machines.QualityChangesGroup import QualityChangesGroup #For typing.
-from cura.Machines.QualityGroup import QualityGroup #For typing.
 from cura.Machines.QualityManager import getMachineDefinitionIDForQualitySearch
 from cura.PrinterOutputDevice import PrinterOutputDevice
 from cura.PrinterOutput.ConfigurationModel import ConfigurationModel
@@ -44,12 +41,16 @@ if TYPE_CHECKING:
     from cura.Machines.MaterialManager import MaterialManager
     from cura.Machines.QualityManager import QualityManager
     from cura.Machines.VariantManager import VariantManager
+    from cura.Machines.ContainerNode import ContainerNode
+    from cura.Machines.QualityChangesGroup import QualityChangesGroup
+    from cura.Machines.QualityGroup import QualityGroup
+
 
 class MachineManager(QObject):
     def __init__(self, parent: QObject = None) -> None:
         super().__init__(parent)
 
-        self._active_container_stack = None     # type: Optional[ExtruderManager]
+        self._active_container_stack = None     # type: Optional[ExtruderStack]
         self._global_container_stack = None     # type: Optional[GlobalStack]
 
         self._current_root_material_id = {}  # type: Dict[str, str]
@@ -1087,7 +1088,7 @@ class MachineManager(QObject):
         self.activeQualityGroupChanged.emit()
         self.activeQualityChangesGroupChanged.emit()
 
-    def _setQualityGroup(self, quality_group: Optional[QualityGroup], empty_quality_changes: bool = True) -> None:
+    def _setQualityGroup(self, quality_group: Optional["QualityGroup"], empty_quality_changes: bool = True) -> None:
         if self._global_container_stack is None:
             return
         if quality_group is None:
@@ -1118,7 +1119,7 @@ class MachineManager(QObject):
         self.activeQualityGroupChanged.emit()
         self.activeQualityChangesGroupChanged.emit()
 
-    def _fixQualityChangesGroupToNotSupported(self, quality_changes_group: QualityChangesGroup) -> None:
+    def _fixQualityChangesGroupToNotSupported(self, quality_changes_group: "QualityChangesGroup") -> None:
         nodes = [quality_changes_group.node_for_global] + list(quality_changes_group.nodes_for_extruders.values())
         containers = [n.getContainer() for n in nodes if n is not None]
         for container in containers:
@@ -1126,7 +1127,7 @@ class MachineManager(QObject):
                 container.setMetaDataEntry("quality_type", "not_supported")
         quality_changes_group.quality_type = "not_supported"
 
-    def _setQualityChangesGroup(self, quality_changes_group: QualityChangesGroup) -> None:
+    def _setQualityChangesGroup(self, quality_changes_group: "QualityChangesGroup") -> None:
         if self._global_container_stack is None:
             return #Can't change that.
         quality_type = quality_changes_group.quality_type
@@ -1170,20 +1171,20 @@ class MachineManager(QObject):
         self.activeQualityGroupChanged.emit()
         self.activeQualityChangesGroupChanged.emit()
 
-    def _setVariantNode(self, position: str, container_node: ContainerNode) -> None:
+    def _setVariantNode(self, position: str, container_node: "ContainerNode") -> None:
         if container_node.getContainer() is None or self._global_container_stack is None:
             return
         self._global_container_stack.extruders[position].variant = container_node.getContainer()
         self.activeVariantChanged.emit()
 
-    def _setGlobalVariant(self, container_node: ContainerNode) -> None:
+    def _setGlobalVariant(self, container_node: "ContainerNode") -> None:
         if self._global_container_stack is None:
             return
         self._global_container_stack.variant = container_node.getContainer()
         if not self._global_container_stack.variant:
             self._global_container_stack.variant = self._application.empty_variant_container
 
-    def _setMaterial(self, position: str, container_node: ContainerNode = None) -> None:
+    def _setMaterial(self, position: str, container_node: Optional["ContainerNode"] = None) -> None:
         if self._global_container_stack is None:
             return
         if container_node and container_node.getContainer():
@@ -1388,7 +1389,7 @@ class MachineManager(QObject):
         return bool(containers)
 
     @pyqtSlot("QVariant")
-    def setGlobalVariant(self, container_node: ContainerNode) -> None:
+    def setGlobalVariant(self, container_node: "ContainerNode") -> None:
         self.blurSettings.emit()
         with postponeSignals(*self._getContainerChangedSignals(), compress = CompressTechnique.CompressPerParameterValue):
             self._setGlobalVariant(container_node)
@@ -1438,7 +1439,7 @@ class MachineManager(QObject):
         self.setVariant(position, variant_node)
 
     @pyqtSlot(str, "QVariant")
-    def setVariant(self, position: str, container_node: ContainerNode) -> None:
+    def setVariant(self, position: str, container_node: "ContainerNode") -> None:
         position = str(position)
         self.blurSettings.emit()
         with postponeSignals(*self._getContainerChangedSignals(), compress = CompressTechnique.CompressPerParameterValue):
@@ -1462,7 +1463,7 @@ class MachineManager(QObject):
     ##  Optionally provide global_stack if you want to use your own
     #   The active global_stack is treated differently.
     @pyqtSlot(QObject)
-    def setQualityGroup(self, quality_group: QualityGroup, no_dialog: bool = False, global_stack: Optional["GlobalStack"] = None) -> None:
+    def setQualityGroup(self, quality_group: "QualityGroup", no_dialog: bool = False, global_stack: Optional["GlobalStack"] = None) -> None:
         if global_stack is not None and global_stack != self._global_container_stack:
             if quality_group is None:
                 Logger.log("e", "Could not set quality group because quality group is None")
@@ -1489,11 +1490,11 @@ class MachineManager(QObject):
             self._application.discardOrKeepProfileChanges()
 
     @pyqtProperty(QObject, fset = setQualityGroup, notify = activeQualityGroupChanged)
-    def activeQualityGroup(self) -> Optional[QualityGroup]:
+    def activeQualityGroup(self) -> Optional["QualityGroup"]:
         return self._current_quality_group
 
     @pyqtSlot(QObject)
-    def setQualityChangesGroup(self, quality_changes_group: QualityChangesGroup, no_dialog: bool = False) -> None:
+    def setQualityChangesGroup(self, quality_changes_group: "QualityChangesGroup", no_dialog: bool = False) -> None:
         self.blurSettings.emit()
         with postponeSignals(*self._getContainerChangedSignals(), compress = CompressTechnique.CompressPerParameterValue):
             self._setQualityChangesGroup(quality_changes_group)
@@ -1512,7 +1513,7 @@ class MachineManager(QObject):
                 stack.userChanges.clear()
 
     @pyqtProperty(QObject, fset = setQualityChangesGroup, notify = activeQualityChangesGroupChanged)
-    def activeQualityChangesGroup(self) -> Optional[QualityChangesGroup]:
+    def activeQualityChangesGroup(self) -> Optional["QualityChangesGroup"]:
         return self._current_quality_changes_group
 
     @pyqtProperty(str, notify = activeQualityGroupChanged)

plugins/UM3NetworkPrinting/PrinterVideoStream.qml

@@ -16,9 +16,9 @@ Item
 
     MouseArea
     {
-      anchors.fill: parent
-      onClicked: OutputDevice.setActivePrinter(null)
-      z: 0
+        anchors.fill: parent
+        onClicked: OutputDevice.setActivePrinter(null)
+        z: 0
     }
 
     Button
@@ -28,7 +28,7 @@ Item
         anchors.bottomMargin: UM.Theme.getSize("default_margin").width
         anchors.right: cameraImage.right
 
-        // TODO: Harcoded sizes
+        // TODO: Hardcoded sizes
         width: 20 * screenScaleFactor
         height: 20 * screenScaleFactor