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120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
#include <meshing.hpp>
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#include <geometry2d.hpp>
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namespace netgen
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{
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Refinement2d :: Refinement2d (const SplineGeometry2d & ageometry)
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: Refinement(), geometry(ageometry)
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{
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;
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}
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Refinement2d :: ~Refinement2d ()
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{
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;
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}
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void Refinement2d ::
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PointBetween (const Point<3> & p1, const Point<3> & p2, double secpoint,
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int surfi,
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const PointGeomInfo & gi1,
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const PointGeomInfo & gi2,
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Point<3> & newp, PointGeomInfo & newgi) const
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{
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newp = p1+secpoint*(p2-p1);
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newgi.trignum = 1;
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}
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void Refinement2d ::
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PointBetween (const Point<3> & p1, const Point<3> & p2, double secpoint,
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int surfi1, int surfi2,
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const EdgePointGeomInfo & ap1,
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const EdgePointGeomInfo & ap2,
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Point<3> & newp, EdgePointGeomInfo & newgi) const
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{
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Point<2> p2d;
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double newdist;
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auto spline = geometry.GetSplines().Get(ap1.edgenr);
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if( (ap1.dist == 0.0) && (ap2.dist == 0.0) )
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{
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// used for manually generated meshes
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const SplineSeg3<2> * ss3;
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const LineSeg<2> * ls;
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auto ext = dynamic_cast<const SplineSegExt *>(spline);
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if(ext)
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{
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ss3 = dynamic_cast<const SplineSeg3<2> *>(ext->seg);
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ls = dynamic_cast<const LineSeg<2> *>(ext->seg);
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}
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else
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{
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ss3 = dynamic_cast<const SplineSeg3<2> *>(spline);
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ls = dynamic_cast<const LineSeg<2> *>(spline);
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}
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Point<2> p12d(p1(0),p1(1)), p22d(p2(0),p2(1));
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Point<2> p1_proj(0.0,0.0), p2_proj(0.0,0.0);
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double t1_proj = 0.0;
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double t2_proj = 0.0;
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if(ss3)
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{
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ss3->Project(p12d,p1_proj,t1_proj);
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ss3->Project(p22d,p2_proj,t2_proj);
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}
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else if(ls)
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{
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ls->Project(p12d,p1_proj,t1_proj);
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ls->Project(p22d,p2_proj,t2_proj);
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}
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p2d = spline->GetPoint (((1-secpoint)*t1_proj+secpoint*t2_proj));
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newdist = (1-secpoint)*t1_proj+secpoint*t2_proj;
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}
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else
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{
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p2d = spline->GetPoint (((1-secpoint)*ap1.dist+secpoint*ap2.dist));
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newdist = (1-secpoint)*ap1.dist+secpoint*ap2.dist;
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}
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// (*testout) << "refine 2d line, ap1.dist, ap2.dist = " << ap1.dist << ", " << ap2.dist << endl;
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// (*testout) << "p1, p2 = " << p1 << p2 << ", newp = " << p2d << endl;
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newp = Point3d (p2d(0), p2d(1), 0);
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newgi.edgenr = ap1.edgenr;
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newgi.dist = newdist;
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};
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Vec<3> Refinement2d :: GetTangent (const Point<3> & p, int surfi1, int surfi2,
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const EdgePointGeomInfo & ap1) const
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{
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Vec<2> t2d = geometry.GetSplines().Get(ap1.edgenr) -> GetTangent(ap1.dist);
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return Vec<3> (t2d(0), t2d(1), 0);
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}
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Vec<3> Refinement2d :: GetNormal (const Point<3> & p, int surfi1,
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const PointGeomInfo & gi) const
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{
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return Vec<3> (0,0,1);
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}
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void Refinement2d :: ProjectToSurface (Point<3> & p, int surfi, const PointGeomInfo & /* gi */) const
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{
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p(2) = 0;
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}
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void Refinement2d :: ProjectToEdge (Point<3> & p, int surfi1, int surfi2,
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const EdgePointGeomInfo & egi) const
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{
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Point<2> p2d (p(0), p(1)), pp;
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double t;
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geometry.GetSplines().Get(egi.edgenr) -> Project (p2d, pp, t);
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p = Point<3> (pp(0), pp(1), 0);
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}
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}
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