mirror of
https://github.com/Open-Cascade-SAS/OCCT.git
synced 2026-05-15 22:11:17 +08:00
295 lines
8.3 KiB
C++
Executable File
295 lines
8.3 KiB
C++
Executable File
// Created on: 1994-03-18
|
|
// Created by: Bruno DUMORTIER
|
|
// Copyright (c) 1994-1999 Matra Datavision
|
|
// Copyright (c) 1999-2012 OPEN CASCADE SAS
|
|
//
|
|
// The content of this file is subject to the Open CASCADE Technology Public
|
|
// License Version 6.5 (the "License"). You may not use the content of this file
|
|
// except in compliance with the License. Please obtain a copy of the License
|
|
// at http://www.opencascade.org and read it completely before using this file.
|
|
//
|
|
// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
|
|
// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
|
|
//
|
|
// The Original Code and all software distributed under the License is
|
|
// distributed on an "AS IS" basis, without warranty of any kind, and the
|
|
// Initial Developer hereby disclaims all such warranties, including without
|
|
// limitation, any warranties of merchantability, fitness for a particular
|
|
// purpose or non-infringement. Please see the License for the specific terms
|
|
// and conditions governing the rights and limitations under the License.
|
|
|
|
|
|
#include <GeomAPI_ExtremaCurveSurface.ixx>
|
|
|
|
#include <GeomAdaptor_Curve.hxx>
|
|
#include <GeomAdaptor_Surface.hxx>
|
|
#include <Extrema_POnCurv.hxx>
|
|
#include <Extrema_POnSurf.hxx>
|
|
|
|
#include <Precision.hxx>
|
|
|
|
|
|
//=======================================================================
|
|
//function : GeomAPI_ExtremaCurveSurface
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
GeomAPI_ExtremaCurveSurface::GeomAPI_ExtremaCurveSurface()
|
|
{
|
|
myIsDone = Standard_False;
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : GeomAPI_ExtremaCurveSurface
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
GeomAPI_ExtremaCurveSurface::GeomAPI_ExtremaCurveSurface
|
|
(const Handle(Geom_Curve)& Curve,
|
|
const Handle(Geom_Surface)& Surface)
|
|
{
|
|
Init(Curve,Surface);
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : GeomAPI_ExtremaCurveSurface
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
GeomAPI_ExtremaCurveSurface::GeomAPI_ExtremaCurveSurface
|
|
(const Handle(Geom_Curve)& Curve,
|
|
const Handle(Geom_Surface)& Surface,
|
|
const Standard_Real Wmin,
|
|
const Standard_Real Wmax,
|
|
const Standard_Real Umin,
|
|
const Standard_Real Umax,
|
|
const Standard_Real Vmin,
|
|
const Standard_Real Vmax)
|
|
{
|
|
Init(Curve,Surface,Wmin,Wmax,Umin,Umax,Vmin,Vmax);
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : Init
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void GeomAPI_ExtremaCurveSurface::Init
|
|
(const Handle(Geom_Curve)& Curve,
|
|
const Handle(Geom_Surface)& Surface)
|
|
{
|
|
GeomAdaptor_Curve TheCurve (Curve);
|
|
GeomAdaptor_Surface TheSurface (Surface);
|
|
|
|
Standard_Real Tol = Precision::PConfusion();
|
|
Extrema_ExtCS theExtCS(TheCurve,TheSurface,Tol,Tol);
|
|
myExtCS = theExtCS;
|
|
|
|
myIsDone = myExtCS.IsDone() && ( myExtCS.NbExt() > 0);
|
|
|
|
if ( myIsDone) {
|
|
|
|
// evaluate the lower distance and its index;
|
|
|
|
Standard_Real Dist2, Dist2Min = myExtCS.SquareDistance(1);
|
|
myIndex = 1;
|
|
|
|
for ( Standard_Integer i = 2; i <= myExtCS.NbExt(); i++) {
|
|
Dist2 = myExtCS.SquareDistance(i);
|
|
if ( Dist2 < Dist2Min) {
|
|
Dist2Min = Dist2;
|
|
myIndex = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : Init
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void GeomAPI_ExtremaCurveSurface::Init
|
|
(const Handle(Geom_Curve)& Curve,
|
|
const Handle(Geom_Surface)& Surface,
|
|
const Standard_Real Wmin,
|
|
const Standard_Real Wmax,
|
|
const Standard_Real Umin,
|
|
const Standard_Real Umax,
|
|
const Standard_Real Vmin,
|
|
const Standard_Real Vmax)
|
|
{
|
|
GeomAdaptor_Curve TheCurve (Curve, Wmin, Wmax);
|
|
GeomAdaptor_Surface TheSurface (Surface, Umin, Umax, Vmin, Vmax);
|
|
|
|
Standard_Real Tol = Precision::PConfusion();
|
|
Extrema_ExtCS theExtCS(TheCurve,TheSurface,
|
|
Wmin,Wmax,Umin,Umax,Vmin,Vmax,Tol,Tol);
|
|
myExtCS = theExtCS;
|
|
|
|
myIsDone = myExtCS.IsDone() && ( myExtCS.NbExt() > 0);
|
|
|
|
if ( myIsDone) {
|
|
|
|
// evaluate the lower distance and its index;
|
|
|
|
Standard_Real Dist2, Dist2Min = myExtCS.SquareDistance(1);
|
|
myIndex = 1;
|
|
|
|
for ( Standard_Integer i = 2; i <= myExtCS.NbExt(); i++) {
|
|
Dist2 = myExtCS.SquareDistance(i);
|
|
if ( Dist2 < Dist2Min) {
|
|
Dist2Min = Dist2;
|
|
myIndex = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : NbExtrema
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
Standard_Integer GeomAPI_ExtremaCurveSurface::NbExtrema() const
|
|
{
|
|
if ( myIsDone)
|
|
return myExtCS.NbExt();
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : Points
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void GeomAPI_ExtremaCurveSurface::Points
|
|
(const Standard_Integer Index,
|
|
gp_Pnt& P1,
|
|
gp_Pnt& P2) const
|
|
{
|
|
Standard_OutOfRange_Raise_if( Index < 1 || Index > NbExtrema(),
|
|
"GeomAPI_ExtremaCurveCurve::Points");
|
|
|
|
Extrema_POnCurv PC;
|
|
Extrema_POnSurf PS;
|
|
myExtCS.Points(Index,PC,PS);
|
|
|
|
P1 = PC.Value();
|
|
P2 = PS.Value();
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : Parameters
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void GeomAPI_ExtremaCurveSurface::Parameters
|
|
(const Standard_Integer Index,
|
|
Standard_Real& W,
|
|
Standard_Real& U,
|
|
Standard_Real& V) const
|
|
{
|
|
Standard_OutOfRange_Raise_if( Index < 1 || Index > NbExtrema(),
|
|
"GeomAPI_ExtremaCurveCurve::Parameters");
|
|
|
|
Extrema_POnCurv PC;
|
|
Extrema_POnSurf PS;
|
|
myExtCS.Points(Index,PC,PS);
|
|
|
|
W = PC.Parameter();
|
|
PS.Parameter(U,V);
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : Distance
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
Standard_Real GeomAPI_ExtremaCurveSurface::Distance
|
|
(const Standard_Integer Index) const
|
|
{
|
|
Standard_OutOfRange_Raise_if( Index < 1 || Index > NbExtrema(),
|
|
"GeomAPI_ExtremaCurveCurve::Distance");
|
|
|
|
return sqrt (myExtCS.SquareDistance(Index));
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : NearestPoints
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void GeomAPI_ExtremaCurveSurface::NearestPoints(gp_Pnt& PC, gp_Pnt& PS) const
|
|
{
|
|
StdFail_NotDone_Raise_if
|
|
(!myIsDone, "GeomAPI_ExtremaCurveSurface::NearestPoints");
|
|
|
|
Points(myIndex,PC,PS);
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : LowerDistanceParameters
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void GeomAPI_ExtremaCurveSurface::LowerDistanceParameters
|
|
(Standard_Real& W,
|
|
Standard_Real& U,
|
|
Standard_Real& V) const
|
|
{
|
|
StdFail_NotDone_Raise_if
|
|
(!myIsDone, "GeomAPI_ExtremaCurveSurface::LowerDistanceParameters");
|
|
|
|
Parameters(myIndex,W,U,V);
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : LowerDistance
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
Standard_Real GeomAPI_ExtremaCurveSurface::LowerDistance() const
|
|
{
|
|
StdFail_NotDone_Raise_if
|
|
(!myIsDone, "GeomAPI_ExtremaCurveSurface::LowerDistance");
|
|
|
|
return sqrt (myExtCS.SquareDistance(myIndex));
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : Standard_Integer
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
GeomAPI_ExtremaCurveSurface::operator Standard_Integer() const
|
|
{
|
|
return NbExtrema();
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : Standard_Real
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
GeomAPI_ExtremaCurveSurface::operator Standard_Real() const
|
|
{
|
|
return LowerDistance();
|
|
}
|
|
|
|
|