mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-12 02:23:34 +00:00
Thomas Krijnen
114 lines
4.4 KiB
C++
114 lines
4.4 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 <gp_Trsf2d.hxx>
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#include "../ifcgeom/IfcGeom.h"
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#include "../ifcgeom_schema_agnostic/profile_helper.h"
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#define Kernel MAKE_TYPE_NAME(Kernel)
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcTShapeProfileDef* l, TopoDS_Shape& face) {
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const bool doFlangeEdgeFillet = !!l->FlangeEdgeRadius();
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const bool doWebEdgeFillet = !!l->WebEdgeRadius();
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const bool doFillet = !!l->FilletRadius();
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const bool hasFlangeSlope = !!l->FlangeSlope();
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const bool hasWebSlope = !!l->WebSlope();
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const double y = l->Depth() / 2.0f * getValue(GV_LENGTH_UNIT);
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const double x = l->FlangeWidth() / 2.0f * getValue(GV_LENGTH_UNIT);
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const double d1 = l->WebThickness() * getValue(GV_LENGTH_UNIT);
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const double d2 = l->FlangeThickness() * getValue(GV_LENGTH_UNIT);
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const double flangeSlope = hasFlangeSlope ? (*l->FlangeSlope() * getValue(GV_PLANEANGLE_UNIT)) : 0.;
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const double webSlope = hasWebSlope ? (*l->WebSlope() * getValue(GV_PLANEANGLE_UNIT)) : 0.;
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if ( x < ALMOST_ZERO || y < ALMOST_ZERO || d1 < ALMOST_ZERO || d2 < ALMOST_ZERO ) {
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Logger::Message(Logger::LOG_NOTICE,"Skipping zero sized profile:",l);
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return false;
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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 = *l->FilletRadius() * getValue(GV_LENGTH_UNIT);
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}
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if (doWebEdgeFillet) {
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f2 = *l->WebEdgeRadius() * getValue(GV_LENGTH_UNIT);
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}
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if (doFlangeEdgeFillet) {
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f3 = *l->FlangeEdgeRadius() * getValue(GV_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 (ALMOST_THE_SAME(det, 0.)) {
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Logger::Message(Logger::LOG_NOTICE, "Web and flange do not intersect for:",l);
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return false;
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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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gp_Trsf2d trsf2d;
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bool has_position = true;
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#ifdef SCHEMA_IfcParameterizedProfileDef_Position_IS_OPTIONAL
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has_position = l->Position() != nullptr;
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#endif
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if (has_position) {
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IfcGeom::Kernel::convert(l->Position(), trsf2d);
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}
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double coords[16] = {d1/2.-dx2,-y, xx,xy, x,y-d2+dy2, x,y, -x,y, -x,y-d2+dy2, -xx,xy, -d1/2.+dx2,-y};
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int fillets[6] = {0,1,2,5,6,7};
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double radii[6] = {f2,f1,f3,f3,f1,f2};
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return util::profile_helper(8, coords, (doFillet || doWebEdgeFillet || doFlangeEdgeFillet) ? 6 : 0, fillets, radii, trsf2d, face);
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}
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