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92a206a3dd
Correct handling of infinity solutions added for Curve / Curve case. Unused code deleted. Test cases updated to the new behavior.
288 lines
7.4 KiB
C++
288 lines
7.4 KiB
C++
// Created on: 1995-01-11
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// Created by: Remi LEQUETTE
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// Copyright (c) 1995-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <GeometryTest.hxx>
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#include <Geom2d_BSplineCurve.hxx>
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#include <Draw.hxx>
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#include <Draw_Interpretor.hxx>
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#include <DrawTrSurf.hxx>
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#include <Draw_Appli.hxx>
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#include <DrawTrSurf_Curve2d.hxx>
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#include <Geom2dAPI_ProjectPointOnCurve.hxx>
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#include <Geom2dAPI_ExtremaCurveCurve.hxx>
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#include <Geom2dAPI_PointsToBSpline.hxx>
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#include <Geom2dAPI_InterCurveCurve.hxx>
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#include <Geom2d_Line.hxx>
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#include <Geom2d_TrimmedCurve.hxx>
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#include <TColgp_Array1OfPnt2d.hxx>
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#include <gp_Pnt.hxx>
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#include <Draw_Marker2D.hxx>
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#include <Draw_Color.hxx>
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#include <Draw_MarkerShape.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <GeomAbs_Shape.hxx>
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#include <stdio.h>
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#ifdef _WIN32
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Standard_IMPORT Draw_Viewer dout;
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#endif
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//=======================================================================
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//function : proj
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//purpose :
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//=======================================================================
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static Standard_Integer proj (Draw_Interpretor& di, Standard_Integer n, const char** a)
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{
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if ( n < 4) return 1;
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gp_Pnt2d P(Draw::Atof(a[2]),Draw::Atof(a[3]));
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char name[100];
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Handle(Geom2d_Curve) GC = DrawTrSurf::GetCurve2d(a[1]);
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if (GC.IsNull())
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return 1;
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Geom2dAPI_ProjectPointOnCurve proj(P,GC,GC->FirstParameter(),
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GC->LastParameter());
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for ( Standard_Integer i = 1; i <= proj.NbPoints(); i++) {
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gp_Pnt2d P1 = proj.Point(i);
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Handle(Geom2d_Line) L = new Geom2d_Line(P,gp_Vec2d(P,P1));
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Handle(Geom2d_TrimmedCurve) CT =
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new Geom2d_TrimmedCurve(L, 0., P.Distance(P1));
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Sprintf(name,"%s%d","ext_",i);
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char* temp = name; // portage WNT
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DrawTrSurf::Set(temp, CT);
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di << name << " ";
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}
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return 0;
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}
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//=======================================================================
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//function : appro
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//purpose :
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//=======================================================================
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static Standard_Integer appro(Draw_Interpretor& di, Standard_Integer n, const char** a)
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{
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// Approximation et interpolation 2d
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// 2dappro
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// - affiche la tolerance
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// 2dappro tol
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// - change la tolerance
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// 2dappro result nbpoint
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// - saisie interactive
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// 2dappro result nbpoint curve
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// - calcule des points sur la courbe
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// 2dappro result nbpoint x1 y1 x2 y2 ..
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// - tableau de points
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// 2dappro result nbpoint x1 dx y1 y2 ..
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// - tableau de points (x1,y1) (x1+dx,y2) ... avec x = t
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static Standard_Real Tol2d = 1.e-6;
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if (n < 3) {
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if (n == 2)
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Tol2d = Draw::Atof(a[1]);
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di << "Tolerance for 2d approx : "<< Tol2d << "\n";
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return 0;
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}
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Standard_Integer i, Nb = Draw::Atoi(a[2]);
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Standard_Boolean hasPoints = Standard_True;
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TColgp_Array1OfPnt2d Points(1, Nb);
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TColStd_Array1OfReal YValues(1,Nb);
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Standard_Real X0=0,DX=0;
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Handle(Draw_Marker2D) mark;
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if (n == 3) {
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// saisie interactive
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Standard_Integer id,XX,YY,b;
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dout.Select(id,XX,YY,b);
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Standard_Real zoom = dout.Zoom(id);
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Points(1) = gp_Pnt2d( ((Standard_Real)XX)/zoom,
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((Standard_Real)YY)/zoom );
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mark = new Draw_Marker2D( Points(1), Draw_X, Draw_vert);
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dout << mark;
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for (Standard_Integer j = 2; j<=Nb; j++) {
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dout.Select(id,XX,YY,b);
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Points(j) = gp_Pnt2d( ((Standard_Real)XX)/zoom,
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((Standard_Real)YY)/zoom );
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mark = new Draw_Marker2D( Points(j), Draw_X, Draw_vert);
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dout << mark;
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}
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}
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else {
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if ( n == 4) {
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// points sur courbe
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Handle(Geom2d_Curve) GC = DrawTrSurf::GetCurve2d(a[3]);
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if ( GC.IsNull())
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return 1;
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Standard_Real U, U1, U2;
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U1 = GC->FirstParameter();
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U2 = GC->LastParameter();
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Standard_Real Delta = ( U2 - U1) / (Nb-1);
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for ( i = 1 ; i <= Nb; i++) {
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U = U1 + (i-1) * Delta;
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Points(i) = GC->Value(U);
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}
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}
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else {
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// test points ou ordonnees
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hasPoints = Standard_False;
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Standard_Integer nc = n - 3;
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if (nc == 2 * Nb) {
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// points
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nc = 3;
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for (i = 1; i <= Nb; i++) {
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Points(i).SetCoord(Draw::Atof(a[nc]),Draw::Atof(a[nc+1]));
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nc += 2;
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}
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}
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else if (nc - 2 == Nb) {
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// YValues
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nc = 5;
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X0 = Draw::Atof(a[3]);
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DX = Draw::Atof(a[4]);
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for (i = 1; i <= Nb; i++) {
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YValues(i) = Draw::Atof(a[nc]);
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Points(i).SetCoord(X0+(i-1)*DX,YValues(i));
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nc++;
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}
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}
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else
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return 1;
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}
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// display the points
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for ( i = 1 ; i <= Nb; i++) {
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mark = new Draw_Marker2D( Points(i), Draw_X, Draw_vert);
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dout << mark;
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}
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}
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dout.Flush();
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Standard_Integer Dmin = 3;
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Standard_Integer Dmax = 8;
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Handle(Geom2d_BSplineCurve) TheCurve;
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if (hasPoints)
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TheCurve = Geom2dAPI_PointsToBSpline(Points,Dmin,Dmax,GeomAbs_C2,Tol2d);
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else
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TheCurve = Geom2dAPI_PointsToBSpline(YValues,X0,DX,Dmin,Dmax,GeomAbs_C2,Tol2d);
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DrawTrSurf::Set(a[1], TheCurve);
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di << a[1];
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return 0;
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}
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//=======================================================================
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//function : intersect
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//purpose :
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//=======================================================================
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static Standard_Integer intersect(Draw_Interpretor& /*di*/, Standard_Integer n, const char** a)
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{
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if( n < 2)
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return 1;
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Handle(Geom2d_Curve) C1 = DrawTrSurf::GetCurve2d(a[1]);
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if ( C1.IsNull())
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return 1;
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Standard_Real Tol = 0.001;
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Geom2dAPI_InterCurveCurve Intersector;
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Handle(Geom2d_Curve) C2;
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if ( n == 3) {
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C2 = DrawTrSurf::GetCurve2d(a[2]);
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if ( C2.IsNull())
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return 1;
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Intersector.Init(C1,C2,Tol);
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}
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else {
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Intersector.Init(C1, Tol);
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}
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Standard_Integer i;
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for ( i = 1; i <= Intersector.NbPoints(); i++) {
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gp_Pnt2d P = Intersector.Point(i);
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Handle(Draw_Marker2D) mark = new Draw_Marker2D( P, Draw_X, Draw_vert);
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dout << mark;
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}
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dout.Flush();
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Handle(Geom2d_Curve) S1,S2;
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Handle(DrawTrSurf_Curve2d) CD;
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if ( n == 3) {
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for ( i = 1; i <= Intersector.NbSegments(); i++) {
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Intersector.Segment(i,S1,S2);
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CD = new DrawTrSurf_Curve2d(S1, Draw_bleu, 30);
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dout << CD;
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CD = new DrawTrSurf_Curve2d(S2, Draw_violet, 30);
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dout << CD;
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}
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}
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dout.Flush();
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return 0;
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}
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void GeometryTest::API2dCommands(Draw_Interpretor& theCommands)
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{
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static Standard_Boolean done = Standard_False;
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if (done) return;
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const char *g;
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done = Standard_True;
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g = "GEOMETRY curves and surfaces analysis";
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theCommands.Add("2dproj", "proj curve x y",__FILE__, proj,g);
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g = "GEOMETRY approximations";
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theCommands.Add("2dapprox", "2dapprox result nbpoint [curve] [[x] y [x] y...]",__FILE__,
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appro,g);
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theCommands.Add("2dinterpole", "2dinterpole result nbpoint [curve] [[x] y [x] y ...]",__FILE__,
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appro,g);
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g = "GEOMETRY curves and surfaces analysis";
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g = "GEOMETRY intersections";
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theCommands.Add("2dintersect", "intersect curve curve",__FILE__,
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intersect,g);
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}
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