mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-12 02:23:34 +00:00
Richard Brice
40f92d15c3
* Some basic COGO survey points functions * Update alignment api Includes defining alignment segment by segment, automatic geometry definitions, and automatric stationing and referents * Fixes bonsai import alignment from csv * Adds DMS angle conversion functions to COGO api * Updated per @civilx64 review comments * Fixes problem with segment representations * Fixes problem with segment transition codes * Allows for compound vertical and horizontal curves * Implements callbacks for referent naming * Renames angle_from_bearing to bearing2dd for consistency with ifcopenshell.util.geolocation.dms2dd. Removes angle_from_dms because it duplicates dms2dd * Documents register_referent_name_callback * Fixes all sorts of problems with Cant/SegRefCurve implementation * refactor referent unit tests to use a fixture for test setup * lint with black --------- Co-authored-by: Scott Lecher <civilx64@gmail.com>
51 lines
2.2 KiB
Python
51 lines
2.2 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 ifcopenshell
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import ifcopenshell.api.alignment
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import ifcopenshell.util.element
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from ifcopenshell import entity_instance
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def has_zero_length_segment(layout: entity_instance) -> bool:
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"""
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Returns true if the layout ends with a zero length segment.
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:param layout: An IfcAlignmentHorizontal, IfcAlignmentVertical, or IfcAlignmentCant
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:return: True if the zero length segment is present
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"""
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expected_types = ["IfcAlignmentHorizontal", "IfcAlignmentVertical", "IfcAlignmentCant"]
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if not layout.is_a() in expected_types:
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raise TypeError(
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f"Expected entity type to be one of {[_ for _ in expected_types]}, instead received '{layout.is_a()}"
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)
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result = False
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for rel in layout.IsNestedBy:
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if 0 < len(rel.RelatedObjects):
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last_segment = rel.RelatedObjects[-1]
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if last_segment.is_a("IfcAlignmentSegment"):
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if last_segment.DesignParameters.is_a("IfcAlignmentHorizontalSegment"):
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result = last_segment.DesignParameters.SegmentLength == 0.0
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elif last_segment.DesignParameters.is_a("IfcAlignmentVerticalSegment"):
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result = last_segment.DesignParameters.HorizontalLength == 0.0
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elif last_segment.DesignParameters.is_a("IfcAlignmentCantSegment"):
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result = last_segment.DesignParameters.HorizontalLength == 0.0
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return result
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