/********************************************************************************
* *
* 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 . *
* *
********************************************************************************/
#ifndef IFCGEOM_H
#define IFCGEOM_H
#define ALMOST_ZERO (1e-9)
#define ALMOST_THE_SAME(a,b) (fabs(a-b) < ALMOST_ZERO)
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "../ifcparse/IfcParse.h"
#include "../ifcparse/IfcUtil.h"
#include "../ifcgeom/IfcShapeList.h"
// Tolerances for various geometrical operations:
// Specifies the deflection of the mesher
#define DEFLECTION_TOLERANCE 0.001
// Specifies the tolerance of the wire builder, most notably for trimmed curves
#define WIRE_CREATION_TOLERANCE 0.0001
// Specifies the minimal area of a face to be included in an IfcConnectedFaceset
#define MINIMAL_FACE_AREA 0.000001
// Specifies the treshold distance under which cartesian points are deemed equal
#define POINT_EQUALITY_TOLERANCE 0.00001
// Specifies maximum number of faces for a shell to be sewed. Sewing shells
// that consist of many faces is really detrimental for the performance.
#define MAX_FACES_TO_SEW 1000
namespace IfcGeom {
bool convert_wire_to_face(const TopoDS_Wire& wire, TopoDS_Face& face);
bool convert_shapes(const IfcUtil::IfcBaseClass* L, ShapeList& result);
bool is_shape_collection(const IfcUtil::IfcBaseClass* L);
const TopoDS_Shape* convert_shape(const IfcUtil::IfcBaseClass* L, TopoDS_Shape& result);
bool convert_wire(const IfcUtil::IfcBaseClass* L, TopoDS_Wire& result);
bool convert_curve(const IfcUtil::IfcBaseClass* L, Handle(Geom_Curve)& result);
bool convert_face(const IfcUtil::IfcBaseClass* L, TopoDS_Face& result);
bool convert_openings(const Ifc2x3::IfcProduct::ptr entity, const Ifc2x3::IfcRelVoidsElement::list& openings, const ShapeList& entity_shapes, const gp_Trsf& entity_trsf, ShapeList& cut_shapes);
bool convert_openings_fast(const Ifc2x3::IfcProduct::ptr entity, const Ifc2x3::IfcRelVoidsElement::list& openings, const ShapeList& entity_shapes, const gp_Trsf& entity_trsf, ShapeList& cut_shapes);
bool create_solid_from_compound(const TopoDS_Shape& compound, TopoDS_Shape& solid);
bool is_compound(const TopoDS_Shape& shape);
bool is_convex(const TopoDS_Wire& wire);
TopoDS_Shape halfspace_from_plane(const gp_Pln& pln,const gp_Pnt& cent);
gp_Pln plane_from_face(const TopoDS_Face& face);
gp_Pnt point_above_plane(const gp_Pln& pln, bool agree=true);
const TopoDS_Shape& ensure_fit_for_subtraction(const TopoDS_Shape& shape, TopoDS_Shape& solid);
bool profile_helper(int numVerts, double* verts, int numFillets, int* filletIndices, double* filletRadii, gp_Trsf2d trsf, TopoDS_Face& face);
double shape_volume(const TopoDS_Shape& s);
double face_area(const TopoDS_Face& f);
namespace Cache {
void Purge();
void PurgeShapeCache();
}
#include "IfcRegisterGeomHeader.h"
}
#endif