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IfcOpenShell/src/ifcgeom/IfcIShapeProfileDef.cpp
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2023-02-18 13:00:45 +01:00

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C++

/********************************************************************************
* *
* This file is part of IfcOpenShell. *
* *
* IfcOpenShell is free software: you can redistribute it and/or modify *
* it under the terms of the Lesser GNU General Public License as published by *
* the Free Software Foundation, either version 3.0 of the License, or *
* (at your option) any later version. *
* *
* IfcOpenShell is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* Lesser GNU General Public License for more details. *
* *
* You should have received a copy of the Lesser GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
********************************************************************************/
#include <gp_Trsf2d.hxx>
#include "../ifcgeom/IfcGeom.h"
#include "../ifcgeom_schema_agnostic/profile_helper.h"
#define Kernel MAKE_TYPE_NAME(Kernel)
bool IfcGeom::Kernel::convert(const IfcSchema::IfcIShapeProfileDef* l, TopoDS_Shape& face) {
const bool doFillet1 = !!l->FilletRadius();
#ifdef SCHEMA_IfcIShapeProfileDef_HAS_FlangeEdgeRadius
const bool doFlangeEdgeRadius = !!l->FlangeEdgeRadius();
const bool hasSlope = !!l->FlangeSlope();
#else
const bool doFlangeEdgeRadius = false;
#endif
const double x1 = l->OverallWidth() / 2.0f * getValue(GV_LENGTH_UNIT);
const double y = l->OverallDepth() / 2.0f * getValue(GV_LENGTH_UNIT);
const double d1 = l->WebThickness() / 2.0f * getValue(GV_LENGTH_UNIT);
const double ft1 = l->FlangeThickness() * getValue(GV_LENGTH_UNIT);
#ifdef SCHEMA_IfcIShapeProfileDef_HAS_FlangeEdgeRadius
const double slope = l->FlangeSlope().get_value_or(0.) * getValue(GV_PLANEANGLE_UNIT);
#endif
double dy = 0.0f;
double f1 = 0.0f;
double f2 = 0.0f;
double fe1 = 0.0f;
double fe2 = 0.0f;
double x2 = x1;
double ft2 = ft1;
if ( doFillet1 ) {
f1 = *l->FilletRadius() * getValue(GV_LENGTH_UNIT);
}
#ifdef SCHEMA_IfcIShapeProfileDef_HAS_FlangeEdgeRadius
if (doFlangeEdgeRadius) {
fe1 = *l->FlangeEdgeRadius() * getValue(GV_LENGTH_UNIT);
}
if (hasSlope) {
dy = (x1 - d1) * tan(slope);
}
#endif
bool doFillet2 = doFillet1;
// @todo in IFC4 a IfcAsymmetricIShapeProfileDef is not a subtype anymore of IfcIShapeProfileDef!
if (l->declaration().is(IfcSchema::IfcAsymmetricIShapeProfileDef::Class())) {
IfcSchema::IfcAsymmetricIShapeProfileDef* assym = (IfcSchema::IfcAsymmetricIShapeProfileDef*) l;
x2 = assym->TopFlangeWidth() / 2. * getValue(GV_LENGTH_UNIT);
doFillet2 = !!assym->TopFlangeFilletRadius();
if (doFillet2) {
f2 = *assym->TopFlangeFilletRadius() * getValue(GV_LENGTH_UNIT);
}
if (assym->TopFlangeThickness()) {
ft2 = *assym->TopFlangeThickness() * getValue(GV_LENGTH_UNIT);
}
} else {
f2 = f1;
fe2 = fe1;
}
if ( x1 < ALMOST_ZERO || x2 < ALMOST_ZERO || y < ALMOST_ZERO || d1 < ALMOST_ZERO || ft1 < ALMOST_ZERO || ft2 < ALMOST_ZERO ) {
Logger::Message(Logger::LOG_NOTICE,"Skipping zero sized profile:",l);
return false;
}
gp_Trsf2d trsf2d;
bool has_position = true;
#ifdef SCHEMA_IfcParameterizedProfileDef_Position_IS_OPTIONAL
has_position = l->Position() != nullptr;
#endif
if (has_position) {
IfcGeom::Kernel::convert(l->Position(), trsf2d);
}
double coords[24] = {
-x1,-y,
x1,-y,
x1,-y+ft1,
d1,-y+ft1+dy,
d1,y-ft2-dy,
x2,y-ft2,
x2,y,
-x2,y,
-x2,y-ft2,
-d1,y-ft2-dy,
-d1,-y+ft1+dy,
-x1,-y+ft1
};
int fillets[8] = {2,3,4,5,8,9,10,11};
double radii[8] = {fe1,f1,f2,fe2,fe2,f2,f1,fe1};
return util::profile_helper(12,coords,(doFillet1 || doFillet2 || doFlangeEdgeRadius) ? 8 : 0,fillets,radii,trsf2d,face);
}