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Mostly stable implementation of mirror modifier

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Dion Moult
2019-11-26 11:49:14 +11:00
parent e643966191
commit 031fd1baff
1 changed files with 12 additions and 1 deletions
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src/ifcblenderexport/blenderbim/export_ifc.py
+12 -1
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@@ -225,6 +225,7 @@ class IfcParser():
obj = product['raw'] obj = product['raw']
instance_objects = [(obj, { instance_objects = [(obj, {
'location': obj.matrix_world.translation, 'location': obj.matrix_world.translation,
'array_offset': Vector((0, 0, 0)),
'scale': obj.scale 'scale': obj.scale
})] })]
@@ -262,6 +263,8 @@ class IfcParser():
for obj in instance_objects: for obj in instance_objects:
for n in range(modifier.count - 1): for n in range(modifier.count - 1):
override = obj[1].copy() override = obj[1].copy()
override['array_offset'] = ((n + 1) * modifier.offset)
override['location'] = obj[1]['location'].copy()
location = override['location'] + ((n + 1) * modifier.offset) location = override['location'] + ((n + 1) * modifier.offset)
override['location'] = location override['location'] = location
self.add_product( self.add_product(
@@ -279,7 +282,6 @@ class IfcParser():
return created_instances return created_instances
def resolve_mirror_modifier(self, product, modifier, instance_objects): def resolve_mirror_modifier(self, product, modifier, instance_objects):
return [] # TODO: not yet stable
created_instances = [] created_instances = []
mirrors = [] mirrors = []
for axis in [0, 1, 2]: for axis in [0, 1, 2]:
@@ -291,7 +293,15 @@ class IfcParser():
override = obj[1].copy() override = obj[1].copy()
override['has_scale'] = True override['has_scale'] = True
override['has_mirror'] = True override['has_mirror'] = True
override['scale'] = obj[1]['scale'].copy()
override['scale'][mirror] *= -1 override['scale'][mirror] *= -1
mirror_axis = Vector((0, 0, 0))
mirror_axis[mirror] = 1
world_rotation = obj[0].matrix_world.decompose()[1].to_matrix().to_4x4()
unrotated_offset = world_rotation.inverted() @ override['array_offset']
mirrored_offset = unrotated_offset @ Matrix.Scale(-1, 4, mirror_axis)
rotated_offset = world_rotation @ mirrored_offset
override['location'] = override['location'] - override['array_offset'] + rotated_offset
self.add_product( self.add_product(
self.get_product( self.get_product(
{'raw': obj[0], 'metadata': product['metadata']}, {'raw': obj[0], 'metadata': product['metadata']},
@@ -358,6 +368,7 @@ class IfcParser():
'right_axis': self.get_axis(obj.matrix_world, 1), 'right_axis': self.get_axis(obj.matrix_world, 1),
'has_scale': obj.scale != Vector((1, 1, 1)), 'has_scale': obj.scale != Vector((1, 1, 1)),
'has_mirror': False, 'has_mirror': False,
'array_offset': Vector((0, 0, 0)),
'scale': obj.scale, 'scale': obj.scale,
'class': self.get_ifc_class(obj.name), 'class': self.get_ifc_class(obj.name),
'relating_structure': None, 'relating_structure': None,