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80 lines
2.3 KiB
C++
Executable File
80 lines
2.3 KiB
C++
Executable File
// File gp_Lin2d.cxx, JCV O3/04/90
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// File gp_Lin2d.cxx, FID 30/06/90 reprise complete
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// JCV 10/01/91 modifs suite a la deuxieme revue de projet
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// AGV 03/04/07 bug correction: "pos" origin too far when A is very small
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#define No_Standard_OutOfRange
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#include <gp_Lin2d.ixx>
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#include <gp.hxx>
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//=======================================================================
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//function : gp_Lin2d
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//purpose :
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//=======================================================================
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gp_Lin2d::gp_Lin2d (const Standard_Real A,
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const Standard_Real B,
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const Standard_Real C)
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{
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const Standard_Real Norm2 = A * A + B * B;
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Standard_ConstructionError_Raise_if (Norm2 <= gp::Resolution(), " ");
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const gp_Pnt2d P (-A*C/Norm2, -B*C/Norm2);
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const gp_Dir2d V (-B, A);
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// gp_Pnt2d P;
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// Standard_Real Norm = sqrt(A * A + B * B);
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// Standard_ConstructionError_Raise_if (Norm <= gp::Resolution(), " ");
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// Standard_Real A1 = A/Norm;
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// Standard_Real B1 = B/Norm;
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// Standard_Real C1 = C/Norm;
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// gp_Dir2d V = gp_Dir2d (-B1, A1);
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// Standard_Real AA1 = A1;
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// if (AA1 < 0) AA1 = - AA1;
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// if (AA1 > gp::Resolution()) P.SetCoord (-C1 / A1, 0.0);
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// else P.SetCoord (0.0, -C1 / B1);
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pos = gp_Ax2d(P, V);
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}
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//=======================================================================
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//function : Mirror
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//purpose :
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//=======================================================================
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void gp_Lin2d::Mirror (const gp_Pnt2d& P)
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{ pos.Mirror(P); }
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//=======================================================================
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//function : Mirrored
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//purpose :
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//=======================================================================
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gp_Lin2d gp_Lin2d::Mirrored (const gp_Pnt2d& P) const
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{
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gp_Lin2d L = *this;
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L.pos.Mirror(P);
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return L;
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}
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//=======================================================================
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//function : Mirror
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//purpose :
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//=======================================================================
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void gp_Lin2d::Mirror (const gp_Ax2d& A)
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{ pos.Mirror(A); }
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//=======================================================================
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//function : Mirrored
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//purpose :
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//=======================================================================
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gp_Lin2d gp_Lin2d::Mirrored (const gp_Ax2d& A) const
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{
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gp_Lin2d L = *this;
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L.pos.Mirror(A);
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return L;
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}
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