mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-12 18:43:26 +00:00
Thomas Krijnen
76 lines
3.7 KiB
C++
76 lines
3.7 KiB
C++
/********************************************************************************
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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 Lesser GNU General Public License as published by *
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* the Free Software Foundation, either version 3.0 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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* Lesser GNU General Public License for more details. *
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* *
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* You should have received a copy of the Lesser GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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********************************************************************************/
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#include "mapping.h"
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#define mapping POSTFIX_SCHEMA(mapping)
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using namespace ifcopenshell::geometry;
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#include "../function_item_evaluator.h"
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#ifdef SCHEMA_HAS_IfcSegmentedReferenceCurve
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taxonomy::ptr mapping::map_impl(const IfcSchema::IfcSegmentedReferenceCurve* inst) {
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if (!inst->BaseCurve()->as<IfcSchema::IfcGradientCurve>())
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Logger::Warning("Expected IfcSegmentedReferenceCurve.BaseCurve to be IfcGradient", inst); // CT 4.1.7.1.1.3
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auto segments = inst->Segments();
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taxonomy::piecewise_function::spans_t spans;
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for (auto& segment : *segments) {
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if (segment->as<IfcSchema::IfcCurveSegment>()) {
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// @todo check that we don't get a mixture of implicit and explicit definitions
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auto crv = map(segment->as<IfcSchema::IfcCurveSegment>());
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if (auto fi = taxonomy::dcast<taxonomy::function_item>(crv); crv && fi /*crv->kind() == taxonomy::FUNCTION_ITEM*/) {
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// crv->kind() is polymorphic and the kind of the actual function_item is returned. PWF can have spans of any FUNCTION_ITEM
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// for this reason, a dynamic cast is used and if crv is a function_item it is added to the span
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spans.push_back(fi);
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} else {
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Logger::Error("Unsupported");
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return nullptr;
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}
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} else {
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Logger::Error("Unsupported");
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return nullptr;
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}
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}
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// Get starting position of cant curve, relative to the gradient curve.
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// The cant curve can start before or after the start of the gradient curve
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auto first_segment = *(segments->begin());
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taxonomy::matrix4::ptr p;
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#ifdef SCHEMA_IfcCurveSegment_HAS_Placement
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p = taxonomy::cast<taxonomy::matrix4>(map(first_segment->as<IfcSchema::IfcCurveSegment>()->Placement()));
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#else
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throw std::runtime_error("Unsupported schema");
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#endif
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const Eigen::Matrix4d& m = p->ccomponents();
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double cant_start = m(0, 3); // start of cant curve
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auto cant = taxonomy::make<taxonomy::piecewise_function>(cant_start,spans);
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auto gradient = taxonomy::cast<taxonomy::gradient_function>(map(inst->BaseCurve()));
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auto cant_function = taxonomy::make<taxonomy::cant_function>(gradient, cant, inst);
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if (!(0 < cant_function->length())) {
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Logger::Error("IfcSegmentedReferenceCurve does not have a common domain with BaseCurve");
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cant_function = nullptr;
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}
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return cant_function;
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}
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#endif |