mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-11 02:02:22 +00:00
Thomas Krijnen
122 lines
4.3 KiB
C++
122 lines
4.3 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::geom;
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#include "../profile_helper.h"
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taxonomy::ptr mapping::map_impl(const IfcSchema::IfcTShapeProfileDef& inst) {
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const bool doFlangeEdgeFillet = !!inst.FlangeEdgeRadius();
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const bool doWebEdgeFillet = !!inst.WebEdgeRadius();
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const bool doFillet = !!inst.FilletRadius();
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const bool hasFlangeSlope = !!inst.FlangeSlope();
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const bool hasWebSlope = !!inst.WebSlope();
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const double y = inst.Depth() / 2.0f * length_unit_;
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const double x = inst.FlangeWidth() / 2.0f * length_unit_;
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const double d1 = inst.WebThickness() * length_unit_;
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const double d2 = inst.FlangeThickness() * length_unit_;
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const double flangeSlope = hasFlangeSlope ? (*inst.FlangeSlope() * angle_unit_) : 0.;
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const double webSlope = hasWebSlope ? (*inst.WebSlope() * angle_unit_) : 0.;
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const double tol = settings_.get<settings::Precision>().get();
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if (x < tol || y < tol || d1 < tol || d2 < tol) {
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logger_.message(ifcopenshell::logger::LOG_NOTICE, "GEO", 296, "Skipping zero sized profile:", inst);
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return nullptr;
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}
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double dy1 = 0.0f;
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double dy2 = 0.0f;
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double dx1 = 0.0f;
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double dx2 = 0.0f;
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double f1 = 0.0f;
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double f2 = 0.0f;
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double f3 = 0.0f;
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if (doFillet) {
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f1 = *inst.FilletRadius() * length_unit_;
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}
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if (doWebEdgeFillet) {
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f2 = *inst.WebEdgeRadius() * length_unit_;
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}
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if (doFlangeEdgeFillet) {
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f3 = *inst.FlangeEdgeRadius() * length_unit_;
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}
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double xx, xy;
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if (hasFlangeSlope) {
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dy1 = (x / 2. - d1) * tan(flangeSlope);
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dy2 = x / 2. * tan(flangeSlope);
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}
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if (hasWebSlope) {
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dx1 = (y - d2) * tan(webSlope);
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dx2 = y * tan(webSlope);
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}
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if (hasWebSlope || hasFlangeSlope) {
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const double x1s = d1/2. - dx2; const double y1s = -y;
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const double x1e = d1/2. + dx1; const double y1e = y - d2;
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const double x2s = x; const double y2s = y - d2 + dy2;
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const double x2e = d1/2.; const double y2e = y - d2 - dy1;
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const double a1 = y1e - y1s;
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const double b1 = x1s - x1e;
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const double c1 = a1*x1s + b1*y1s;
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const double a2 = y2e - y2s;
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const double b2 = x2s - x2e;
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const double c2 = a2*x2s + b2*y2s;
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const double det = a1*b2 - a2*b1;
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if (std::fabs(det) < 1.e-5) {
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logger_.message(ifcopenshell::logger::LOG_NOTICE, "GEO", 297, "Web and flange do not intersect for:", inst);
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return nullptr;
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}
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xx = (b2*c1 - b1*c2) / det;
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xy = (a1*c2 - a2*c1) / det;
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} else {
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xx = d1 / 2;
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xy = y - d2;
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}
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taxonomy::matrix4::ptr m4;
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bool has_position = true;
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#ifdef SCHEMA_IfcParameterizedProfileDef_Position_IS_OPTIONAL
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has_position = !!inst.Position();
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#endif
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if (has_position) {
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m4 = taxonomy::cast<taxonomy::matrix4>(map(inst.Position()));
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}
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return profile_helper(m4, {
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{{d1 / 2. - dx2,-y},{ f2} },
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{{xx,xy},{ f1}},
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{{x,y - d2 + dy2},{ f3}},
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{{x,y}},
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{{-x,y}},
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{{-x,y - d2 + dy2},{f3}},
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{{-xx,xy},{f1}},
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{{-d1 / 2. + dx2,-y},{f2}}
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});
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}
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