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151 lines
3.3 KiB
C++
151 lines
3.3 KiB
C++
#ifdef OCCGEOMETRY
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#ifndef FILE_OCCMESHSURF
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#define FILE_OCCMESHSURF
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#include "occgeom.hpp"
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#include "mydefs.hpp"
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#define PARAMETERSPACE -1
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#define PLANESPACE 1
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class OCCGeometry;
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class SingularMatrixException
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{};
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class UVBoundsException
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{};
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class OCCSurface
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{
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public:
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TopoDS_Face topods_face;
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Handle(Geom_Surface) occface;
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TopAbs_Orientation orient;
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int projecttype;
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protected:
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Point<3> p1;
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Point<3> p2;
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/// in plane, directed p1->p2
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Vec<3> ex;
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/// in plane
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Vec<3> ey;
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/// outer normal direction
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Vec<3> ez;
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/// normal vector in p2
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Vec<3> n2;
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/// average normal vector
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Vec<3> nmid;
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// for transformation to parameter space
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Point<2> psp1;
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Point<2> psp2;
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Vec<2> psex;
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Vec<2> psey;
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Mat<2,2> Amat, Amatinv;
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// UV Bounds
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double umin, umax, vmin, vmax;
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public:
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OCCSurface (const TopoDS_Face & aface, int aprojecttype)
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{
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static Timer t("occurface ctor"); RegionTimer r(t);
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topods_face = aface;
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occface = BRep_Tool::Surface(topods_face);
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orient = topods_face.Orientation();
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projecttype = aprojecttype;
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ShapeAnalysis::GetFaceUVBounds (topods_face, umin, umax, vmin, vmax);
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umin -= fabs(umax-umin)/100.0;
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vmin -= fabs(vmax-vmin)/100.0;
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umax += fabs(umax-umin)/100.0;
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vmax += fabs(vmax-vmin)/100.0;
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// projecttype = PLANESPACE;
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/*
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TopExp_Explorer exp1;
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exp1.Init (topods_face, TopAbs_WIRE);
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orient = TopAbs::Compose (orient, exp1.Current().Orientation());
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*/
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};
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~OCCSurface()
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{};
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void Project (Point<3> & p, PointGeomInfo & gi);
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void GetNormalVector (const Point<3> & p,
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const PointGeomInfo & geominfo,
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Vec<3> & n) const;
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/**
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Defines tangential plane in ap1.
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The local x-coordinate axis point to the direction of ap2 */
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void DefineTangentialPlane (const Point<3> & ap1,
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const PointGeomInfo & geominfo1,
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const Point<3> & ap2,
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const PointGeomInfo & geominfo2);
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/// Transforms 3d point p3d to local coordinates pplane
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void ToPlane (const Point<3> & p3d, const PointGeomInfo & geominfo,
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Point<2> & pplane, double h, int & zone) const;
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/// Transforms point pplane in local coordinates to 3d point
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void FromPlane (const Point<2> & pplane,
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Point<3> & p3d,
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PointGeomInfo & gi,
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double h);
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};
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///
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class Meshing2OCCSurfaces : public Meshing2
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{
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///
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OCCSurface surface;
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public:
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///
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Meshing2OCCSurfaces (const TopoDS_Shape & asurf, const Box<3> & aboundingbox,
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int aprojecttype, const MeshingParameters & mparam);
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///
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int GetProjectionType ()
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{ return surface.projecttype; }
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protected:
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///
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void DefineTransformation (const Point<3> & p1, const Point<3> & p2,
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const PointGeomInfo * geominfo1,
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const PointGeomInfo * geominfo2) override;
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///
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void TransformToPlain (const Point<3> & locpoint,
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const MultiPointGeomInfo & geominfo,
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Point<2> & plainpoint,
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double h, int & zone) override;
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///
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int TransformFromPlain (const Point<2> & plainpoint,
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Point<3> & locpoint,
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PointGeomInfo & gi,
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double h) override;
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///
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double CalcLocalH (const Point<3> & p, double gh) const override;
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};
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class OCCGeometry;
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#endif
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#endif
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