63 lines
2.1 KiB
Python
63 lines
2.1 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2025 Thomas Krijnen <thomas@aecgeeks.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser 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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# IfcOpenShell 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 Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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import numpy as np
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import ifcopenshell
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import ifcopenshell.util.placement
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from ifcopenshell import entity_instance
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def update_fallback_position(file: ifcopenshell.file, lp: entity_instance):
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"""
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Updates the IfcLinearPlacement.CartesianPoint fallback position.
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If the CartesianPosition is not assigned to the IfcLinearPlacement, one will be created
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:param lp: The linear placement
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:return: None
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"""
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if not lp.CartesianPosition:
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lp.CartesianPosition = file.createIfcAxis2Placement3D(Location=file.createIfcCartesianPoint((0.0, 0.0)))
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p = np.array(ifcopenshell.util.placement.get_axis2placement(lp.RelativePlacement))
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x = float(p[0, 3])
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y = float(p[1, 3])
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z = float(p[2, 3])
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rx = float(p[0, 0])
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ry = float(p[1, 0])
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rz = float(p[2, 0])
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ax = float(p[0, 2])
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ay = float(p[1, 2])
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az = float(p[2, 2])
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lp.CartesianPosition.Location.Coordinates = (x, y, z)
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if not lp.CartesianPosition.RefDirection:
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lp.CartesianPosition.RefDirection = file.createIfcDirection((1.0, 0.0, 0.0))
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if not lp.CartesianPosition.Axis:
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lp.CartesianPosition.Axis = file.createIfcDirection((0.0, 0.0, 1.0))
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lp.CartesianPosition.RefDirection.DirectionRatios = (rx, ry, rz)
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lp.CartesianPosition.Axis.DirectionRatios = (ax, ay, az)
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