IfcOpenShell/src/ifcgeom/IfcCShapeProfileDef.cpp

/********************************************************************************
 *                                                                              *
 * 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.                                          *
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 * 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/>.         *
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 ********************************************************************************/

#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::IfcCShapeProfileDef* l, TopoDS_Shape& face) {
	const double y = l->Depth() / 2.0f * getValue(GV_LENGTH_UNIT);
	const double x = l->Width() / 2.0f * getValue(GV_LENGTH_UNIT);
	const double d1 = l->WallThickness() * getValue(GV_LENGTH_UNIT);
	const double d2 = l->Girth() * getValue(GV_LENGTH_UNIT);
	bool doFillet = !!l->InternalFilletRadius();
	double f1 = 0;
	double f2 = 0;
	if ( doFillet ) {
		f1 = *l->InternalFilletRadius() * getValue(GV_LENGTH_UNIT);
		f2 = f1 + d1;
	}

	if ( x < ALMOST_ZERO || y < ALMOST_ZERO || d1 < ALMOST_ZERO || d2 < 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] = {-x,-y,x,-y,x,-y+d2,x-d1,-y+d2,x-d1,-y+d1,-x+d1,-y+d1,-x+d1,y-d1,x-d1,y-d1,x-d1,y-d2,x,y-d2,x,y,-x,y};
	int fillets[8] = {0,1,4,5,6,7,10,11};
	double radii[8] = {f2,f2,f1,f1,f1,f1,f2,f2};
	return util::profile_helper(12,coords,doFillet ? 8 : 0,fillets,radii,trsf2d,face);
}