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1 | // File: GccAna_LinPnt2dBisec.cxx |
| 2 | // Created: Fri Oct 4 09:53:31 1991 |
| 3 | // Author: Remi GILET |
| 4 | // <reg@phobox> |
| 5 | |
| 6 | |
| 7 | //========================================================================= |
| 8 | // CREATION DE LA BISSECTRICE ENTRE UNE DROITE ET UN POINTS. + |
| 9 | //========================================================================= |
| 10 | |
| 11 | #include <GccAna_LinPnt2dBisec.ixx> |
| 12 | |
| 13 | #include <gp_XY.hxx> |
| 14 | #include <gp_Dir2d.hxx> |
| 15 | #include <gp_Ax2d.hxx> |
| 16 | #include <GccInt_BParab.hxx> |
| 17 | #include <GccInt_BLine.hxx> |
| 18 | #include <Standard_ConstructionError.hxx> |
| 19 | #include <StdFail_NotDone.hxx> |
| 20 | #include <gp.hxx> |
| 21 | |
| 22 | //========================================================================= |
| 23 | |
| 24 | GccAna_LinPnt2dBisec:: |
| 25 | GccAna_LinPnt2dBisec (const gp_Lin2d& Line1 , |
| 26 | const gp_Pnt2d& Point2) { |
| 27 | |
| 28 | WellDone = Standard_False; |
| 29 | |
| 30 | Standard_Real xdir = Line1.Direction().X(); |
| 31 | Standard_Real ydir = Line1.Direction().Y(); |
| 32 | Standard_Real xloc = Line1.Location().X(); |
| 33 | Standard_Real yloc = Line1.Location().Y(); |
| 34 | Standard_Real dist = Line1.Distance(Point2); |
| 35 | // if ( dist > gp::Resolution()) { |
| 36 | if ( dist > 1.e-10) |
| 37 | { |
| 38 | Standard_Real xpoint2 = Point2.X(); |
| 39 | Standard_Real ypoint2 = Point2.Y(); |
| 40 | if ((-ydir*(xpoint2-xloc)+xdir*(ypoint2-yloc)) > 0.0) |
| 41 | { |
| 42 | gp_Ax2d axeparab(gp_Pnt2d(Point2.XY()-dist/2.*gp_XY(-ydir,xdir)), |
| 43 | gp_Dir2d(-ydir,xdir)); |
| 44 | gp_Parab2d bislinpnt(axeparab,dist/2.0); |
| 45 | bissol = new GccInt_BParab(bislinpnt); |
| 46 | // ===================================== |
| 47 | } |
| 48 | else |
| 49 | { |
| 50 | gp_Ax2d axeparab(gp_Pnt2d(Point2.XY()+dist/2.*gp_XY(-ydir,xdir)), |
| 51 | gp_Dir2d(ydir,-xdir)); |
| 52 | gp_Parab2d bislinpnt(axeparab,dist/2.0); |
| 53 | bissol = new GccInt_BParab(bislinpnt); |
| 54 | // ===================================== |
| 55 | } |
| 56 | WellDone = Standard_True; |
| 57 | } |
| 58 | else |
| 59 | { |
| 60 | gp_Lin2d bislinpnt(Point2,gp_Dir2d(-ydir,xdir)); |
| 61 | bissol = new GccInt_BLine(bislinpnt); |
| 62 | // ==================================== |
| 63 | WellDone = Standard_True; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | //========================================================================= |
| 68 | |
| 69 | Standard_Boolean GccAna_LinPnt2dBisec:: |
| 70 | IsDone () const { return WellDone; } |
| 71 | |
| 72 | Handle(GccInt_Bisec) GccAna_LinPnt2dBisec:: |
| 73 | ThisSolution () const |
| 74 | { |
| 75 | if (!WellDone) |
| 76 | StdFail_NotDone::Raise(); |
| 77 | |
| 78 | return bissol; |
| 79 | } |
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