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occt/src/DrawTrSurf/DrawTrSurf_BSplineSurface.cxx
bugmster 973c2be1e1 0024428: Implementation of LGPL license 
The copying permission statements at the beginning of source files updated to refer to LGPL.
Copyright dates extended till 2014 in advance.
2013-12-17 12:42:41 +04:00

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// Copyright (c) 1995-1999 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 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 <DrawTrSurf_BSplineSurface.ixx>
#include <DrawTrSurf_BSplineCurve.hxx>
#include <Geom_BSplineSurface.hxx>
#include <Draw_MarkerShape.hxx>
#include <GeomAdaptor_HSurface.hxx>
#include <GeomAdaptor_Surface.hxx>
#include <Adaptor3d_IsoCurve.hxx>
#include <gp_Pnt2d.hxx>
#include <TColgp_Array2OfPnt.hxx>
#include <TColStd_Array1OfReal.hxx>
DrawTrSurf_BSplineSurface::DrawTrSurf_BSplineSurface (
const Handle(Geom_BSplineSurface)& S)
: DrawTrSurf_Surface (S, S->NbUKnots()-2, S->NbVKnots()-2,
Draw_jaune, Draw_bleu, 30, 0.05, 0){
drawPoles = Standard_True;
drawKnots = Standard_True;
knotsIsos = Standard_True;
knotsForm = Draw_Losange;
knotsLook = Draw_violet;
knotsDim = 5;
polesLook = Draw_rouge;
}
DrawTrSurf_BSplineSurface::DrawTrSurf_BSplineSurface (
const Handle(Geom_BSplineSurface)& S, const Draw_Color& BoundsColor,
const Draw_Color& IsosColor, const Draw_Color& PolesColor,
const Draw_Color& KnotsColor, const Draw_MarkerShape KnotsShape,
const Standard_Integer KnotsSize, const Standard_Boolean ShowPoles, const Standard_Boolean ShowKnots,
const Standard_Integer Discret, const Standard_Real Deflection, const Standard_Integer DrawMode)
: DrawTrSurf_Surface (S, S->NbUKnots()-2, S->NbVKnots()-2, BoundsColor,
IsosColor, Discret, Deflection, DrawMode){
knotsIsos = Standard_True;
drawPoles = ShowPoles;
drawKnots = ShowKnots;
knotsForm = KnotsShape;
knotsLook = KnotsColor;
knotsDim = KnotsSize;
polesLook = PolesColor;
}
DrawTrSurf_BSplineSurface::DrawTrSurf_BSplineSurface (
const Handle(Geom_BSplineSurface)& S, const Standard_Integer NbUIsos,
const Standard_Integer NbVIsos, const Draw_Color& BoundsColor,
const Draw_Color& IsosColor, const Draw_Color& PolesColor,
const Draw_Color& KnotsColor, const Draw_MarkerShape KnotsShape,
const Standard_Integer KnotsSize, const Standard_Boolean ShowPoles, const Standard_Boolean ShowKnots,
const Standard_Integer Discret, const Standard_Real Deflection, const Standard_Integer DrawMode)
: DrawTrSurf_Surface (S, Abs(NbUIsos), Abs(NbVIsos), BoundsColor,
IsosColor, Discret, Deflection, DrawMode){
knotsIsos = Standard_False;
drawPoles = ShowPoles;
drawKnots = ShowKnots;
knotsForm = KnotsShape;
knotsLook = KnotsColor;
knotsDim = KnotsSize;
polesLook = PolesColor;
}
void DrawTrSurf_BSplineSurface::DrawOn (Draw_Display& dis) const {
Handle(Geom_BSplineSurface) S = Handle(Geom_BSplineSurface)::DownCast(surf);
Standard_Integer i, j;
Standard_Real Ua,Ub,Va,Vb;
S->Bounds(Ua,Ub,Va,Vb);
if (drawPoles) {
Standard_Integer NbUPoles = S->NbUPoles();
Standard_Integer NbVPoles = S->NbVPoles();
dis.SetColor(polesLook);
TColgp_Array2OfPnt SPoles (1, NbUPoles, 1, NbVPoles);
S->Poles (SPoles);
for (j = 1; j <= NbVPoles; j++) {
dis.MoveTo(SPoles(1, j));
for (i = 2; i <= NbUPoles; i++) {
dis.DrawTo(SPoles(i, j));
}
if (S->IsUPeriodic())
dis.DrawTo(SPoles(1,j));
}
for (i = 1; i <= NbUPoles; i++) {
dis.MoveTo(SPoles(i, 1));
for (j = 2; j <= NbVPoles; j++) {
dis.DrawTo(SPoles(i, j));
}
if (S->IsVPeriodic())
dis.DrawTo(SPoles(i,1));
}
}
if (knotsIsos) {
Standard_Integer first, last;
Handle(GeomAdaptor_HSurface) HS = new GeomAdaptor_HSurface();
HS->ChangeSurface().Load(surf);
Adaptor3d_IsoCurve C(HS);
dis.SetColor(isosLook);
first = S->FirstUKnotIndex() + 1;
last = S->LastUKnotIndex() - 1;
for (i = first; i <= last; i++) {
DrawIsoCurveOn(C,GeomAbs_IsoU,S->UKnot(i),Va,Vb,dis);
}
first = S->FirstVKnotIndex() + 1;
last = S->LastVKnotIndex() - 1;
for (j = first; j <= last; j++) {
DrawIsoCurveOn(C,GeomAbs_IsoV,S->VKnot(j),Ua,Ub,dis);
}
}
DrawTrSurf_Surface::DrawOn(dis,!knotsIsos);
if (drawKnots) {
Standard_Integer first, last;
Standard_Integer NbUKnots = S->NbUKnots();
TColStd_Array1OfReal SUKnots (1, NbUKnots);
S->UKnots (SUKnots);
dis.SetColor(knotsLook);
first = S->FirstUKnotIndex();
last = S->LastUKnotIndex();
for (i = first; i <= last; i++) {
dis.DrawMarker (S->Value (SUKnots(i), Va), knotsForm, knotsDim);
}
Standard_Integer NbVKnots = S->NbVKnots();
TColStd_Array1OfReal SVKnots (1, NbVKnots);
S->VKnots (SVKnots);
dis.SetColor(knotsLook);
first = S->FirstVKnotIndex();
last = S->LastVKnotIndex();
for (j = first; j <= last; j++) {
dis.DrawMarker (S->Value (Ua, SVKnots(j)), knotsForm, knotsDim);
}
}
}
void DrawTrSurf_BSplineSurface::ShowPoles () { drawPoles = Standard_True; }
void DrawTrSurf_BSplineSurface::ShowKnots () { drawKnots = Standard_True; }
void DrawTrSurf_BSplineSurface::ClearPoles () { drawPoles = Standard_False; }
void DrawTrSurf_BSplineSurface::ShowKnotsIsos () {
knotsIsos = Standard_True;
Handle(Geom_BSplineSurface) S = Handle(Geom_BSplineSurface)::DownCast(surf);
nbUIsos = S->NbUKnots()-2;
nbVIsos = S->NbVKnots()-2;
}
void DrawTrSurf_BSplineSurface::ClearIsos () {
knotsIsos = Standard_False;
nbUIsos = 0;
nbVIsos = 0;
}
void DrawTrSurf_BSplineSurface::ShowIsos (
const Standard_Integer Nu, const Standard_Integer Nv) {
knotsIsos = Standard_False;
nbUIsos = Abs(Nu);
nbVIsos = Abs(Nv);
}
void DrawTrSurf_BSplineSurface::ClearKnots () { drawKnots = Standard_False; }
void DrawTrSurf_BSplineSurface::FindPole (
const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real XPrec,
Standard_Integer& UIndex, Standard_Integer& VIndex) const {
Handle(Geom_BSplineSurface) bs = Handle(Geom_BSplineSurface)::DownCast(surf);
gp_Pnt2d p1(X/D.Zoom(),Y/D.Zoom());
Standard_Real Prec = XPrec / D.Zoom();
UIndex++;
VIndex++;
Standard_Integer NbUPoles = bs->NbUPoles();
Standard_Integer NbVPoles = bs->NbVPoles();
while (VIndex <= NbVPoles) {
while (UIndex <= NbUPoles) {
if (D.Project(bs->Pole(UIndex, VIndex)).Distance(p1) <= Prec)
return;
UIndex++;
}
UIndex = 1;
VIndex++;
}
UIndex = VIndex = 0;
}
void DrawTrSurf_BSplineSurface::FindUKnot (
const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real Prec,
Standard_Integer& UIndex) const {
Handle(Geom_BSplineSurface) bs = Handle(Geom_BSplineSurface)::DownCast(surf);
gp_Pnt2d p1(X,Y);
UIndex++;
Standard_Integer NbUKnots = bs->NbUKnots();
Standard_Real U1, U2, V1, V2;
surf->Bounds (U1, U2, V1, V2);
while (UIndex <= NbUKnots) {
if (D.Project(bs->Value(bs->UKnot(UIndex), V1)).Distance(p1) <= Prec)
return;
UIndex++;
}
UIndex = 0;
}
void DrawTrSurf_BSplineSurface::FindVKnot (
const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real Prec,
Standard_Integer& VIndex) const {
Handle(Geom_BSplineSurface) bs = Handle(Geom_BSplineSurface)::DownCast(surf);
gp_Pnt2d p1(X,Y);
VIndex++;
Standard_Integer NbVKnots = bs->NbVKnots();
Standard_Real U1, U2, V1, V2;
surf->Bounds (U1, U2, V1, V2);
while (VIndex <= NbVKnots) {
if (D.Project(bs->Value(U1, bs->VKnot(VIndex))).Distance(p1) <= Prec)
return;
VIndex++;
}
VIndex = 0;
}
//=======================================================================
//function : Copy
//purpose :
//=======================================================================
Handle(Draw_Drawable3D) DrawTrSurf_BSplineSurface::Copy()const
{
Handle(DrawTrSurf_BSplineSurface) DS;
if (!knotsIsos)
DS = new DrawTrSurf_BSplineSurface
(Handle(Geom_BSplineSurface)::DownCast(surf->Copy()),
nbUIsos,nbVIsos,
boundsLook,isosLook,polesLook,knotsLook,
knotsForm,knotsDim,drawPoles,drawKnots,
GetDiscretisation(),GetDeflection(),GetDrawMode());
else
DS = new DrawTrSurf_BSplineSurface
(Handle(Geom_BSplineSurface)::DownCast(surf->Copy()),
boundsLook,isosLook,polesLook,knotsLook,
knotsForm,knotsDim,drawPoles,drawKnots,
GetDiscretisation(),GetDeflection(),GetDrawMode());
return DS;
}
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