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CURA-4269 use z offset decorator to keep project file positions below bed

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This commit is contained in:
ChrisTerBeke 2017-09-18 17:24:00 +02:00
parent b386bda2c8
commit e18b24add2
1 changed files with 16 additions and 2 deletions
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18
plugins/3MFReader/ThreeMFReader.py
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@ -12,6 +12,7 @@ from UM.Mesh.MeshBuilder import MeshBuilder
from UM.Mesh.MeshReader import MeshReader
from UM.Scene.GroupDecorator import GroupDecorator
from cura.Settings.SettingOverrideDecorator import SettingOverrideDecorator
from cura.ZOffsetDecorator import ZOffsetDecorator
from UM.Application import Application
from cura.Settings.ExtruderManager import ExtruderManager
from cura.QualityManager import QualityManager
@ -47,6 +48,8 @@ class ThreeMFReader(MeshReader):
if transformation == "":
return Matrix()
Logger.log("d", "raw_transformation=%s", transformation)
splitted_transformation = transformation.split()
## Transformation is saved as:
## M00 M01 M02 0.0
@ -104,8 +107,8 @@ class ThreeMFReader(MeshReader):
# Add the setting override decorator, so we can add settings to this node.
if settings:
um_node.addDecorator(SettingOverrideDecorator())
global_container_stack = Application.getInstance().getGlobalContainerStack()
# Ensure the correct next container for the SettingOverride decorator is set.
if global_container_stack:
multi_extrusion = global_container_stack.getProperty("machine_extruder_count", "value") > 1
@ -143,12 +146,15 @@ class ThreeMFReader(MeshReader):
if len(um_node.getChildren()) > 0:
group_decorator = GroupDecorator()
um_node.addDecorator(group_decorator)
um_node.setSelectable(True)
if um_node.getMeshData():
# Assuming that all nodes with mesh data are printable objects
# affects (auto) slicing
sliceable_decorator = SliceableObjectDecorator()
um_node.addDecorator(sliceable_decorator)
return um_node
def read(self, file_name):
@ -168,10 +174,18 @@ class ThreeMFReader(MeshReader):
transform_matrix = Matrix()
mesh_data = um_node.getMeshData()
if mesh_data is not None:
extents = mesh_data.getExtents()
center_vector = Vector(extents.center.x, extents.center.y, extents.center.z)
# If the object in a saved project is below the bed, keep it that way
if extents.minimum.z < 0.0:
um_node.addDecorator(ZOffsetDecorator())
um_node.callDecoration("setZOffset", extents.minimum.z)
transform_matrix.setByTranslation(center_vector)
transform_matrix.multiply(um_node.getLocalTransformation())
um_node.setTransformation(transform_matrix)
@ -195,7 +209,7 @@ class ThreeMFReader(MeshReader):
translation_matrix.setByTranslation(translation_vector)
transformation_matrix.multiply(translation_matrix)
# Third step: 3MF also defines a unit, wheras Cura always assumes mm.
# Third step: 3MF also defines a unit, whereas Cura always assumes mm.
scale_matrix = Matrix()
scale_matrix.setByScaleVector(self._getScaleFromUnit(self._unit))
transformation_matrix.multiply(scale_matrix)