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Optimise rebar profile creation on IFC import

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Dion Moult
2020-04-16 13:40:46 +10:00
parent 7adf4934aa
commit f63ac9609b
1 changed files with 10 additions and 6 deletions
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src/ifcblenderexport/blenderbim/bim/import_ifc.py
+10 -6
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@@ -197,6 +197,7 @@ class IfcImporter():
self.time = 0 self.time = 0
self.unit_scale = 1 self.unit_scale = 1
self.added_data = {} self.added_data = {}
self.native_elements = {}
self.native_data = {} self.native_data = {}
self.groups = {} self.groups = {}
@@ -268,16 +269,17 @@ class IfcImporter():
def parse_native_products(self): def parse_native_products(self):
# TODO: simple code for now as we only treat rebar specially # TODO: simple code for now as we only treat rebar specially
self.native_data['rebar_profiles'] = {}
for element in self.file.by_type('IfcReinforcingBar'): for element in self.file.by_type('IfcReinforcingBar'):
for representation in element.Representation.Representations: for representation in element.Representation.Representations:
self.replace_with_directrix(representation, element) self.replace_with_directrix(representation, element)
for item in representation.Items: for item in representation.Items:
if item.is_a('IfcMappedItem'): if item.is_a('IfcMappedItem'):
self.replace_with_directrix(item.MappingSource.MappedRepresentation, element) self.replace_with_directrix(item.MappingSource.MappedRepresentation, element)
for global_id, data in self.native_data.items(): for radius in self.native_data['rebar_profiles'].keys():
bevel_object = bpy.data.objects.new('rebar-profile', self.create_bezier_circle(data['radius'])) obj = bpy.data.objects.new('rebar-profile-{}'.format(radius), self.create_bezier_circle(radius))
bpy.context.scene.collection.objects.link(bevel_object) self.native_data['rebar_profiles'][radius] = obj
data['bevel_object'] = bevel_object bpy.context.scene.collection.objects.link(obj)
def create_bezier_circle(self, radius): def create_bezier_circle(self, radius):
curve = bpy.data.curves.new('circle-profile', type='CURVE') curve = bpy.data.curves.new('circle-profile', type='CURVE')
@@ -307,7 +309,9 @@ class IfcImporter():
for item in representation.Items: for item in representation.Items:
if item.is_a('IfcSweptDiskSolid'): if item.is_a('IfcSweptDiskSolid'):
new_items.append(item.Directrix) new_items.append(item.Directrix)
self.native_data[element.GlobalId] = { 'radius': self.unit_scale * item.Radius } radius = round(self.unit_scale * item.Radius, 3)
self.native_elements[element.GlobalId] = { 'radius': radius }
self.native_data['rebar_profiles'][radius] = None
else: else:
new_items.append(item) new_items.append(item)
representation.Items = new_items representation.Items = new_items
@@ -461,7 +465,7 @@ class IfcImporter():
# TODO: figure out a design pattern for native objects # TODO: figure out a design pattern for native objects
if element.is_a('IfcReinforcingBar'): if element.is_a('IfcReinforcingBar'):
mesh = self.create_mesh(element, shape, is_curve=True) mesh = self.create_mesh(element, shape, is_curve=True)
mesh.bevel_object = self.native_data[element.GlobalId]['bevel_object'] mesh.bevel_object = self.native_data['rebar_profiles'][self.native_elements[element.GlobalId]['radius']]
mesh.use_fill_caps = True mesh.use_fill_caps = True
else: else:
mesh = self.create_mesh(element, shape) mesh = self.create_mesh(element, shape)