mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-12 18:43:26 +00:00
Stephen Boddy
d5e890bccd
poe ty's sequence only reaches ty-ios once ty-bonsai passes, so these
never surfaced until now:
- util/alignment.py: drop the stale `include_referent=False` kwarg from
add_zero_length_segment() - that parameter was removed from the function's
signature in 45ea5eb07 but this caller in a different file was missed,
leaving a latent TypeError if this code path is ever exercised.
- ifcopenshell_wrapper.pyi: add the optional trailing `logger` parameter to
parse_ifcxml/open/construct_iterator*, matching the real SWIG signatures
in src/ifcwrap/*.i (all declare `Logger& logger = Logger::Root()`) that
the hand-maintained stub never picked up.
- ifcopenshell/__init__.py: remove a stale `ty: ignore[unknown-argument]`
comment that ty confirms is no longer suppressing anything.
- assign_cost_item_quantity.py: OPERATORS mixes 2-arg binary operators with
the 1-arg `operator.neg` (for ast.USub), but FormulaEvaluator has no
visit_UnaryOp so USub can never reach this lookup via visit_BinOp.
Suppressed at the call site rather than touching the dict, since this
looks like scaffolding for unary-minus support rather than dead code.
- Explicit submodule imports (ifcopenshell.geom / api.alignment / util.unit
/ api.aggregate / api.context / api.spatial) added where accessed but
only reachable by accident of import order.
90 lines
4.5 KiB
Python
90 lines
4.5 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.api.alignment
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import ifcopenshell.geom
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from ifcopenshell import entity_instance, ifcopenshell_wrapper
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from ifcopenshell.api.alignment._map_alignment_segment import _map_alignment_segment
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from typing import Union
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import math
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import numpy as np
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def _get_segment_endpoint(file: ifcopenshell.file, segment: entity_instance) -> Union[np.array, None]:
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"""
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Computes the 4x4 matrix for a segment end point. The segment can be an IfcAlignmentSegment
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or IfcCurveSegment
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"""
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expected_types = ["IfcAlignmentSegment", "IfcCurveSegment"]
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if not segment.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 {segment.is_a()}"
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)
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file.begin_transaction() # use a transaction so we can discard any temporary IFC entities created
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curve_segment = segment
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if segment.is_a("IfcAlignmentSegment"):
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layout = ifcopenshell.api.alignment.get_layout(segment)
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mapped_segments = _map_alignment_segment(file, layout, segment)
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curve_segment = mapped_segments[0] if mapped_segments[1] == None else mapped_segments[1]
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# Inside of the IfcOpenShell C++ implementation where the IfcCurveSegment calculations occur,
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# the composite curve owning the segment is evaluated to determine if a horizontal, vertical, or cant segment is being evaluated.
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# This is necessary to determine how the end point of the curve segment is calculated.
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# A temporary curve segment has been created and it needs to be associated with the correct composite curve for the end point to be calculated correctly.
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# Inside the C++ implementation, if a composite curve isn't associated with the segment the segment is assumed to be horizontal. For this reason
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# a temporary IfcCompositeCurve for horizontal segments doesn't need to be created.
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if layout.is_a("IfcAlignmentVertical"):
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gc = file.createIfcGradientCurve(Segments=[curve_segment])
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elif layout.is_a("IfcAlignmentCant"):
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# The evaluation of cant segments depend on the start conditions of the next segment. In the absense of a next segment the
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# optional EndPoint is used. Since a tempoaryar IfcSegmentReferenceCurve is being used, there is not a next segment.
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# For this reason the EndPoint must be created from the design parameters of the sementic segment definiton.
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Dsl = segment.DesignParameters.StartCantLeft
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Dsr = segment.DesignParameters.StartCantRight
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Del = segment.DesignParameters.EndCantLeft if segment.DesignParameters.EndCantLeft != None else Dsl
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Der = segment.DesignParameters.EndCantRight if segment.DesignParameters.EndCantRight != None else Dsr
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cant = Der - Del
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rh = layout.RailHeadDistance
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Ay = cant / rh
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Az = math.sqrt(rh**2 - cant**2) / rh
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src = file.createIfcSegmentedReferenceCurve(
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Segments=[curve_segment],
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EndPoint=file.createIfcAxis2Placement3D(
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Location=file.createIfcCartesianPoint((segment.DesignParameters.StartDistAlong, 0.5 * cant, 0.0)),
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RefDirection=file.createIfcDirection((1.0, 0.0, 0.0)),
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Axis=file.createIfcDirection((0.0, Ay, Az)),
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),
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)
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settings = ifcopenshell.geom.settings()
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segment_fn = ifcopenshell_wrapper.map_shape(settings, curve_segment.wrapped_data)
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segment_evaluator = ifcopenshell_wrapper.function_item_evaluator(settings, segment_fn)
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x = segment_fn.end()
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e = segment_evaluator.evaluate(x)
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end = np.array(e)
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file.discard_transaction()
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return end
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