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# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
import copy
from typing import List
from UM.Job import Job
from UM.Operations.GroupedOperation import GroupedOperation
from UM.Message import Message
from UM.Scene.SceneNode import SceneNode
from UM.i18n import i18nCatalog
i18n_catalog = i18nCatalog("cura")
from cura.Arranging.Arrange import Arrange
from cura.Arranging.ShapeArray import ShapeArray
from UM.Application import Application
from UM.Operations.AddSceneNodeOperation import AddSceneNodeOperation
class MultiplyObjectsJob(Job):
def __init__(self, objects, count, min_offset = 8):
super().__init__()
self._objects = objects
self._count = count
self._min_offset = min_offset
def run(self) -> None:
status_message = Message(i18n_catalog.i18nc("@info:status", "Multiplying and placing objects"), lifetime=0,
dismissable=False, progress=0, title = i18n_catalog.i18nc("@info:title", "Placing Objects"))
status_message.show()
scene = Application.getInstance().getController().getScene()
total_progress = len(self._objects) * self._count
current_progress = 0
global_container_stack = Application.getInstance().getGlobalContainerStack()
if global_container_stack is None:
return # We can't do anything in this case.
machine_width = global_container_stack.getProperty("machine_width", "value")
machine_depth = global_container_stack.getProperty("machine_depth", "value")
root = scene.getRoot()
scale = 0.5
arranger = Arrange.create(x = machine_width, y = machine_depth, scene_root = root, scale = scale, min_offset = self._min_offset)
processed_nodes = [] # type: List[SceneNode]
nodes = []
not_fit_count = 0
found_solution_for_all = False
for node in self._objects:
# If object is part of a group, multiply group
current_node = node
while current_node.getParent() and (current_node.getParent().callDecoration("isGroup") or current_node.getParent().callDecoration("isSliceable")):
current_node = current_node.getParent()
if current_node in processed_nodes:
continue
processed_nodes.append(current_node)
node_too_big = False
if node.getBoundingBox().width < machine_width or node.getBoundingBox().depth < machine_depth:
offset_shape_arr, hull_shape_arr = ShapeArray.fromNode(current_node, min_offset = self._min_offset, scale = scale)
else:
node_too_big = True
found_solution_for_all = True
arranger.resetLastPriority()
for _ in range(self._count):
# We do place the nodes one by one, as we want to yield in between.
new_node = copy.deepcopy(node)
solution_found = False
if not node_too_big:
if offset_shape_arr is not None and hull_shape_arr is not None:
solution_found = arranger.findNodePlacement(new_node, offset_shape_arr, hull_shape_arr)
else:
# The node has no shape, so no need to arrange it. The solution is simple: Do nothing.
solution_found = True
if node_too_big or not solution_found:
found_solution_for_all = False
new_location = new_node.getPosition()
new_location = new_location.set(z = - not_fit_count * 20)
new_node.setPosition(new_location)
not_fit_count += 1
# Same build plate
build_plate_number = current_node.callDecoration("getBuildPlateNumber")
new_node.callDecoration("setBuildPlateNumber", build_plate_number)
for child in new_node.getChildren():
child.callDecoration("setBuildPlateNumber", build_plate_number)
nodes.append(new_node)
current_progress += 1
status_message.setProgress((current_progress / total_progress) * 100)
Job.yieldThread()
Job.yieldThread()
if nodes:
operation = GroupedOperation()
for new_node in nodes:
operation.addOperation(AddSceneNodeOperation(new_node, current_node.getParent()))
operation.push()
status_message.hide()
if not found_solution_for_all:
no_full_solution_message = Message(i18n_catalog.i18nc("@info:status", "Unable to find a location within the build volume for all objects"), title = i18n_catalog.i18nc("@info:title", "Placing Object"))
no_full_solution_message.show()
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