mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-14 11:24:19 +00:00
Thomas Krijnen
111 lines
5.4 KiB
C++
111 lines
5.4 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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#ifndef IFCGEOM_H
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#define IFCGEOM_H
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#define ALMOST_ZERO (1e-9)
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#define ALMOST_THE_SAME(a,b) (fabs(a-b) < ALMOST_ZERO)
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#include <gp_Pnt.hxx>
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#include <gp_Vec.hxx>
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#include <gp_Mat.hxx>
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#include <gp_Mat2d.hxx>
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#include <gp_GTrsf.hxx>
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#include <gp_GTrsf2d.hxx>
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#include <gp_Trsf.hxx>
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#include <gp_Trsf2d.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopoDS_Face.hxx>
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#include <Geom_Curve.hxx>
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#include <gp_Pln.hxx>
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#include "../ifcparse/IfcParse.h"
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#include "../ifcparse/IfcUtil.h"
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#include "../ifcgeom/IfcRepresentationShapeItem.h"
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namespace IfcGeom {
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// Tolerances and settings for various geometrical operations:
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enum GeomValue {
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// Specifies the deflection of the mesher
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// Default: 0.001m / 1mm
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GV_DEFLECTION_TOLERANCE,
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// Specifies the tolerance of the wire builder, most notably for trimmed curves
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// Defailt: 0.0001m / 0.1mm
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GV_WIRE_CREATION_TOLERANCE,
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// Specifies the minimal area of a face to be included in an IfcConnectedFaceset
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// Default: 0.000001m 0.01cm2
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GV_MINIMAL_FACE_AREA,
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// Specifies the treshold distance under which cartesian points are deemed equal
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// Default: 0.00001m / 0.01mm
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GV_POINT_EQUALITY_TOLERANCE,
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// Specifies maximum number of faces for a shell to be sewed. Sewing shells
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// that consist of many faces is really detrimental for the performance.
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// Default: 1000
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GV_MAX_FACES_TO_SEW,
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// By default singular faces have no explicitly defined orientation, to
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// force faces to be defined CounterClockWise, set this value greater than zero.
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GV_FORCE_CCW_FACE_ORIENTATION,
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// The length unit used the creation of TopoDS_Shapes, primarily affects the
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// interpretation of IfcCartesianPoints and IfcVector magnitudes
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// DefaultL 1.0
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GV_LENGTH_UNIT,
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// The plane angle unit used for the creation of TopoDS_Shapes, primarily affects
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// the interpretation of IfcParamaterValues of IfcTrimmedCurves
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// Default: -1.0 (= not set, fist try degrees, then radians)
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GV_PLANEANGLE_UNIT,
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};
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bool convert_wire_to_face(const TopoDS_Wire& wire, TopoDS_Face& face);
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bool convert_shapes(const IfcUtil::IfcBaseClass* L, IfcRepresentationShapeItems& result);
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bool is_shape_collection(const IfcUtil::IfcBaseClass* L);
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bool convert_shape(const IfcUtil::IfcBaseClass* L, TopoDS_Shape& result);
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bool convert_wire(const IfcUtil::IfcBaseClass* L, TopoDS_Wire& result);
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bool convert_curve(const IfcUtil::IfcBaseClass* L, Handle(Geom_Curve)& result);
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bool convert_face(const IfcUtil::IfcBaseClass* L, TopoDS_Face& result);
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bool convert_openings(const Ifc2x3::IfcProduct::ptr entity, const Ifc2x3::IfcRelVoidsElement::list& openings, const IfcRepresentationShapeItems& entity_shapes, const gp_Trsf& entity_trsf, IfcRepresentationShapeItems& cut_shapes);
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bool convert_openings_fast(const Ifc2x3::IfcProduct::ptr entity, const Ifc2x3::IfcRelVoidsElement::list& openings, const IfcRepresentationShapeItems& entity_shapes, const gp_Trsf& entity_trsf, IfcRepresentationShapeItems& cut_shapes);
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Ifc2x3::IfcSurfaceStyleShading* get_surface_style(Ifc2x3::IfcRepresentationItem* item);
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bool create_solid_from_compound(const TopoDS_Shape& compound, TopoDS_Shape& solid);
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bool is_compound(const TopoDS_Shape& shape);
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bool is_convex(const TopoDS_Wire& wire);
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TopoDS_Shape halfspace_from_plane(const gp_Pln& pln,const gp_Pnt& cent);
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gp_Pln plane_from_face(const TopoDS_Face& face);
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gp_Pnt point_above_plane(const gp_Pln& pln, bool agree=true);
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const TopoDS_Shape& ensure_fit_for_subtraction(const TopoDS_Shape& shape, TopoDS_Shape& solid);
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bool profile_helper(int numVerts, double* verts, int numFillets, int* filletIndices, double* filletRadii, gp_Trsf2d trsf, TopoDS_Face& face);
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double shape_volume(const TopoDS_Shape& s);
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double face_area(const TopoDS_Face& f);
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void SetValue(GeomValue var, double value);
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double GetValue(GeomValue var);
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Ifc2x3::IfcProductDefinitionShape* tesselate(TopoDS_Shape& shape, double deflection, IfcEntities es);
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namespace Cache {
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void Purge();
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void PurgeShapeCache();
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}
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#include "IfcRegisterGeomHeader.h"
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}
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#endif
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