mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-26 13:50:33 +05:00
120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
#include <meshing.hpp>
|
|
#include <geometry2d.hpp>
|
|
|
|
namespace netgen
|
|
{
|
|
|
|
Refinement2d :: Refinement2d (const SplineGeometry2d & ageometry)
|
|
: Refinement(), geometry(ageometry)
|
|
{
|
|
;
|
|
}
|
|
|
|
Refinement2d :: ~Refinement2d ()
|
|
{
|
|
;
|
|
}
|
|
|
|
|
|
void Refinement2d ::
|
|
PointBetween (const Point<3> & p1, const Point<3> & p2, double secpoint,
|
|
int surfi,
|
|
const PointGeomInfo & gi1,
|
|
const PointGeomInfo & gi2,
|
|
Point<3> & newp, PointGeomInfo & newgi) const
|
|
{
|
|
newp = p1+secpoint*(p2-p1);
|
|
newgi.trignum = 1;
|
|
}
|
|
|
|
|
|
|
|
void Refinement2d ::
|
|
PointBetween (const Point<3> & p1, const Point<3> & p2, double secpoint,
|
|
int surfi1, int surfi2,
|
|
const EdgePointGeomInfo & ap1,
|
|
const EdgePointGeomInfo & ap2,
|
|
Point<3> & newp, EdgePointGeomInfo & newgi) const
|
|
{
|
|
Point<2> p2d;
|
|
double newdist;
|
|
auto spline = geometry.GetSplines().Get(ap1.edgenr);
|
|
if( (ap1.dist == 0.0) && (ap2.dist == 0.0) )
|
|
{
|
|
// used for manually generated meshes
|
|
const SplineSeg3<2> * ss3;
|
|
const LineSeg<2> * ls;
|
|
auto ext = dynamic_cast<const SplineSegExt *>(spline);
|
|
if(ext)
|
|
{
|
|
ss3 = dynamic_cast<const SplineSeg3<2> *>(&ext->seg);
|
|
ls = dynamic_cast<const LineSeg<2> *>(&ext->seg);
|
|
}
|
|
else
|
|
{
|
|
ss3 = dynamic_cast<const SplineSeg3<2> *>(spline);
|
|
ls = dynamic_cast<const LineSeg<2> *>(spline);
|
|
}
|
|
Point<2> p12d(p1(0),p1(1)), p22d(p2(0),p2(1));
|
|
Point<2> p1_proj(0.0,0.0), p2_proj(0.0,0.0);
|
|
double t1_proj = 0.0;
|
|
double t2_proj = 0.0;
|
|
if(ss3)
|
|
{
|
|
ss3->Project(p12d,p1_proj,t1_proj);
|
|
ss3->Project(p22d,p2_proj,t2_proj);
|
|
}
|
|
else if(ls)
|
|
{
|
|
ls->Project(p12d,p1_proj,t1_proj);
|
|
ls->Project(p22d,p2_proj,t2_proj);
|
|
}
|
|
p2d = spline->GetPoint (((1-secpoint)*t1_proj+secpoint*t2_proj));
|
|
newdist = (1-secpoint)*t1_proj+secpoint*t2_proj;
|
|
}
|
|
else
|
|
{
|
|
p2d = spline->GetPoint (((1-secpoint)*ap1.dist+secpoint*ap2.dist));
|
|
newdist = (1-secpoint)*ap1.dist+secpoint*ap2.dist;
|
|
}
|
|
|
|
// (*testout) << "refine 2d line, ap1.dist, ap2.dist = " << ap1.dist << ", " << ap2.dist << endl;
|
|
// (*testout) << "p1, p2 = " << p1 << p2 << ", newp = " << p2d << endl;
|
|
|
|
newp = Point3d (p2d(0), p2d(1), 0);
|
|
newgi.edgenr = ap1.edgenr;
|
|
newgi.dist = newdist;
|
|
};
|
|
|
|
|
|
|
|
Vec<3> Refinement2d :: GetTangent (const Point<3> & p, int surfi1, int surfi2,
|
|
const EdgePointGeomInfo & ap1) const
|
|
{
|
|
Vec<2> t2d = geometry.GetSplines().Get(ap1.edgenr) -> GetTangent(ap1.dist);
|
|
return Vec<3> (t2d(0), t2d(1), 0);
|
|
}
|
|
|
|
Vec<3> Refinement2d :: GetNormal (const Point<3> & p, int surfi1,
|
|
const PointGeomInfo & gi) const
|
|
{
|
|
return Vec<3> (0,0,1);
|
|
}
|
|
|
|
|
|
void Refinement2d :: ProjectToSurface (Point<3> & p, int surfi, const PointGeomInfo & /* gi */) const
|
|
{
|
|
p(2) = 0;
|
|
}
|
|
|
|
|
|
void Refinement2d :: ProjectToEdge (Point<3> & p, int surfi1, int surfi2,
|
|
const EdgePointGeomInfo & egi) const
|
|
{
|
|
Point<2> p2d (p(0), p(1)), pp;
|
|
double t;
|
|
geometry.GetSplines().Get(egi.edgenr) -> Project (p2d, pp, t);
|
|
p = Point<3> (pp(0), pp(1), 0);
|
|
}
|
|
}
|