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Dion Moult
44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
# BlenderBIM Add-on - OpenBIM Blender Add-on
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# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of BlenderBIM Add-on.
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#
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# BlenderBIM Add-on is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# BlenderBIM Add-on is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with BlenderBIM Add-on. If not, see <http://www.gnu.org/licenses/>.
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import bpy
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import bmesh
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import pprint
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material_volumes = {}
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for obj in bpy.context.selected_objects:
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if not obj.data or not isinstance(obj.data, bpy.types.Mesh):
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continue
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material_polygons = {}
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for polygon in obj.data.polygons:
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material_polygons.setdefault(polygon.material_index, []).append(polygon.vertices)
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verts = [v.co for v in obj.data.vertices]
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for index, polygons in material_polygons.items():
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mesh = bpy.data.meshes.new("Temporary Mesh")
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mesh.from_pydata(verts, [], polygons)
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bm = bmesh.new()
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bm.from_mesh(mesh)
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material_name = obj.data.materials[index].name
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material_volumes.setdefault(material_name, 0)
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material_volumes[material_name] += bm.calc_volume()
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bm.free()
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bpy.data.meshes.remove(mesh)
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pprint.pprint(material_volumes)
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