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occt/src/gp/gp_Ax3.cxx

148 lines
4.3 KiB
C++

// Created on: 1993-08-03
// Created by: Laurent BOURESCHE
// Copyright (c) 1993-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <gp_Ax3.hxx>
#include <gp_Ax1.hxx>
#include <gp_Ax2.hxx>
#include <gp_Dir.hxx>
#include <gp_Pnt.hxx>
#include <gp_Vec.hxx>
#include <Standard_ConstructionError.hxx>
#include <Standard_Dump.hxx>
//=======================================================================
//function : gp_Ax3
//purpose :
//=======================================================================
gp_Ax3::gp_Ax3 (const gp_Pnt& P,
const gp_Dir& V) : axis(P,V)
{
Standard_Real A = V.X();
Standard_Real B = V.Y();
Standard_Real C = V.Z();
Standard_Real Aabs = A;
if (Aabs < 0) Aabs = - Aabs;
Standard_Real Babs = B;
if (Babs < 0) Babs = - Babs;
Standard_Real Cabs = C;
if (Cabs < 0) Cabs = - Cabs;
gp_Dir D;
// pour determiner l axe X :
// on dit que le produit scalaire Vx.V = 0.
// et on recherche le max(A,B,C) pour faire la division.
// l une des coordonnees du vecteur est nulle.
if ( Babs <= Aabs && Babs <= Cabs) {
if (Aabs > Cabs) D.SetCoord(-C,0., A);
else D.SetCoord( C,0.,-A);
}
else if( Aabs <= Babs && Aabs <= Cabs) {
if (Babs > Cabs) D.SetCoord(0.,-C, B);
else D.SetCoord(0., C,-B);
}
else {
if (Aabs > Babs) D.SetCoord(-B, A,0.);
else D.SetCoord( B,-A,0.);
}
vxdir = D;
vydir = V.Crossed(vxdir);
}
void gp_Ax3::Mirror(const gp_Pnt& P)
{
axis.Mirror (P);
vxdir.Reverse ();
vydir.Reverse ();
}
gp_Ax3 gp_Ax3::Mirrored(const gp_Pnt& P)const
{
gp_Ax3 Temp = *this;
Temp.Mirror (P);
return Temp;
}
void gp_Ax3::Mirror(const gp_Ax1& A1)
{
vydir.Mirror (A1);
vxdir.Mirror (A1);
axis.Mirror (A1);
}
gp_Ax3 gp_Ax3::Mirrored(const gp_Ax1& A1)const
{
gp_Ax3 Temp = *this;
Temp.Mirror (A1);
return Temp;
}
void gp_Ax3::Mirror(const gp_Ax2& A2)
{
vydir.Mirror (A2);
vxdir.Mirror (A2);
axis.Mirror (A2);
}
gp_Ax3 gp_Ax3::Mirrored(const gp_Ax2& A2)const
{
gp_Ax3 Temp = *this;
Temp.Mirror (A2);
return Temp;
}
void gp_Ax3::DumpJson (Standard_OStream& theOStream, Standard_Integer) const
{
OCCT_DUMP_VECTOR_CLASS (theOStream, "Location", 3, Location().X(), Location().Y(), Location().Z())
OCCT_DUMP_VECTOR_CLASS (theOStream, "Direction", 3, Direction().X(), Direction().Y(), Direction().Z())
OCCT_DUMP_VECTOR_CLASS (theOStream, "XDirection", 3, XDirection().X(), XDirection().Y(), XDirection().Z())
OCCT_DUMP_VECTOR_CLASS (theOStream, "YDirection", 3, YDirection().X(), YDirection().Y(), YDirection().Z())
}
Standard_Boolean gp_Ax3::InitFromJson (const Standard_SStream& theSStream, Standard_Integer& theStreamPos)
{
Standard_Integer aPos = theStreamPos;
TCollection_AsciiString aStreamStr = Standard_Dump::Text (theSStream);
gp_XYZ anXYZLoc;
OCCT_INIT_VECTOR_CLASS (aStreamStr, "Location", aPos, 3,
&anXYZLoc.ChangeCoord (1), &anXYZLoc.ChangeCoord (2), &anXYZLoc.ChangeCoord (3))
SetLocation (anXYZLoc);
gp_XYZ aDir;
OCCT_INIT_VECTOR_CLASS (aStreamStr, "Direction", aPos, 3,
&aDir.ChangeCoord (1), &aDir.ChangeCoord (2), &aDir.ChangeCoord (3))
gp_XYZ aXDir;
OCCT_INIT_VECTOR_CLASS (aStreamStr, "XDirection", aPos, 3,
&aXDir.ChangeCoord (1), &aXDir.ChangeCoord (2), &aXDir.ChangeCoord (3))
gp_XYZ anYDir;
OCCT_INIT_VECTOR_CLASS (aStreamStr, "YDirection", aPos, 3,
&anYDir.ChangeCoord (1), &anYDir.ChangeCoord (2), &anYDir.ChangeCoord (3))
axis.SetDirection (gp_Dir (aDir));
vxdir = gp_Dir (aXDir);
vydir = gp_Dir (anYDir);
if (!Direction().IsEqual (aDir, Precision::Angular()))
return Standard_False;
theStreamPos = aPos;
return Standard_True;
}