1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
# Copyright (c) 2019 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from UM.Application import Application
from UM.Job import Job
from UM.Scene.SceneNode import SceneNode
from UM.Math.Vector import Vector
from UM.Operations.TranslateOperation import TranslateOperation
from UM.Operations.GroupedOperation import GroupedOperation
from UM.Message import Message
from UM.i18n import i18nCatalog
i18n_catalog = i18nCatalog("cura")
from cura.Scene.ZOffsetDecorator import ZOffsetDecorator
from cura.Arranging.Arrange import Arrange
from cura.Arranging.ShapeArray import ShapeArray
from typing import List
class ArrangeArray:
"""Do arrangements on multiple build plates (aka builtiplexer)"""
def __init__(self, x: int, y: int, fixed_nodes: List[SceneNode]) -> None:
self._x = x
self._y = y
self._fixed_nodes = fixed_nodes
self._count = 0
self._first_empty = None
self._has_empty = False
self._arrange = [] # type: List[Arrange]
def _updateFirstEmpty(self):
for i, a in enumerate(self._arrange):
if a.isEmpty:
self._first_empty = i
self._has_empty = True
return
self._first_empty = None
self._has_empty = False
def add(self):
new_arrange = Arrange.create(x = self._x, y = self._y, fixed_nodes = self._fixed_nodes)
self._arrange.append(new_arrange)
self._count += 1
self._updateFirstEmpty()
def count(self):
return self._count
def get(self, index):
return self._arrange[index]
def getFirstEmpty(self):
if not self._has_empty:
self.add()
return self._arrange[self._first_empty]
class ArrangeObjectsAllBuildPlatesJob(Job):
def __init__(self, nodes: List[SceneNode], min_offset = 8) -> None:
super().__init__()
self._nodes = nodes
self._min_offset = min_offset
def run(self):
status_message = Message(i18n_catalog.i18nc("@info:status", "Finding new location for objects"),
lifetime = 0,
dismissable=False,
progress = 0,
title = i18n_catalog.i18nc("@info:title", "Finding Location"))
status_message.show()
# Collect nodes to be placed
nodes_arr = [] # fill with (size, node, offset_shape_arr, hull_shape_arr)
for node in self._nodes:
offset_shape_arr, hull_shape_arr = ShapeArray.fromNode(node, min_offset = self._min_offset)
nodes_arr.append((offset_shape_arr.arr.shape[0] * offset_shape_arr.arr.shape[1], node, offset_shape_arr, hull_shape_arr))
# Sort the nodes with the biggest area first.
nodes_arr.sort(key=lambda item: item[0])
nodes_arr.reverse()
global_container_stack = Application.getInstance().getGlobalContainerStack()
machine_width = global_container_stack.getProperty("machine_width", "value")
machine_depth = global_container_stack.getProperty("machine_depth", "value")
x, y = machine_width, machine_depth
arrange_array = ArrangeArray(x = x, y = y, fixed_nodes = [])
arrange_array.add()
# Place nodes one at a time
start_priority = 0
grouped_operation = GroupedOperation()
found_solution_for_all = True
left_over_nodes = [] # nodes that do not fit on an empty build plate
for idx, (size, node, offset_shape_arr, hull_shape_arr) in enumerate(nodes_arr):
# For performance reasons, we assume that when a location does not fit,
# it will also not fit for the next object (while what can be untrue).
try_placement = True
current_build_plate_number = 0 # always start with the first one
while try_placement:
# make sure that current_build_plate_number is not going crazy or you'll have a lot of arrange objects
while current_build_plate_number >= arrange_array.count():
arrange_array.add()
arranger = arrange_array.get(current_build_plate_number)
best_spot = arranger.bestSpot(hull_shape_arr, start_prio=start_priority)
x, y = best_spot.x, best_spot.y
node.removeDecorator(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
arranger.place(x, y, offset_shape_arr) # place the object in the arranger
node.callDecoration("setBuildPlateNumber", current_build_plate_number)
grouped_operation.addOperation(TranslateOperation(node, Vector(x, center_y, y), set_position = True))
try_placement = False
else:
# very naive, because we skip to the next build plate if one model doesn't fit.
if arranger.isEmpty:
# apparently we can never place this object
left_over_nodes.append(node)
try_placement = False
else:
# try next build plate
current_build_plate_number += 1
try_placement = True
status_message.setProgress((idx + 1) / len(nodes_arr) * 100)
Job.yieldThread()
for node in left_over_nodes:
node.callDecoration("setBuildPlateNumber", -1) # these are not on any build plate
found_solution_for_all = False
grouped_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", "Can't Find Location"),
message_type = Message.MessageType.WARNING)
no_full_solution_message.show()
|
