mirror of
https://github.com/Open-Cascade-SAS/OCCT.git
synced 2026-06-11 09:32:38 +08:00
d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
222 lines
6.4 KiB
C++
222 lines
6.4 KiB
C++
// Created on: 1991-07-16
|
|
// Created by: Christophe MARION
|
|
// Copyright (c) 1991-1999 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 <DrawTrSurf_Drawable.ixx>
|
|
#include <GCPnts_UniformDeflection.hxx>
|
|
#include <gp_Pnt.hxx>
|
|
#include <gp_Pnt2d.hxx>
|
|
#include <TColStd_Array1OfReal.hxx>
|
|
#include <GeomAdaptor_Curve.hxx>
|
|
#include <Geom_BezierCurve.hxx>
|
|
#include <Geom_BSplineCurve.hxx>
|
|
#include <Precision.hxx>
|
|
|
|
|
|
//=======================================================================
|
|
//function : DrawTrSurf_Drawable
|
|
//purpose : initialise the discretisation
|
|
//=======================================================================
|
|
|
|
DrawTrSurf_Drawable::DrawTrSurf_Drawable (
|
|
|
|
const Standard_Integer discret,
|
|
const Standard_Real deflection,
|
|
const Standard_Integer DrawMode ) :
|
|
myDrawMode (DrawMode),
|
|
myDiscret(discret),
|
|
myDeflection(deflection)
|
|
{
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : DrawCurve2dOn
|
|
//purpose : draw a 2D curve
|
|
//=======================================================================
|
|
|
|
void DrawTrSurf_Drawable::DrawCurve2dOn (Adaptor2d_Curve2d& C,
|
|
Draw_Display& aDisplay) const
|
|
{
|
|
gp_Pnt P;
|
|
|
|
gp_Pnt2d aPoint2d,
|
|
*aPoint2dPtr ;
|
|
if (myDrawMode == 1) {
|
|
Standard_Real Fleche = myDeflection/aDisplay.Zoom();
|
|
GCPnts_UniformDeflection LineVu(C,Fleche);
|
|
if (LineVu.IsDone()) {
|
|
P = LineVu.Value(1) ;
|
|
aPoint2dPtr = (gp_Pnt2d *) &P ;
|
|
aDisplay.MoveTo(*aPoint2dPtr);
|
|
for (Standard_Integer i = 2; i <= LineVu.NbPoints(); i++) {
|
|
P = LineVu.Value(i) ;
|
|
aPoint2dPtr = (gp_Pnt2d *) &P ;
|
|
aDisplay.DrawTo(*aPoint2dPtr);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
Standard_Integer intrv, nbintv = C.NbIntervals(GeomAbs_CN);
|
|
TColStd_Array1OfReal TI(1,nbintv+1);
|
|
C.Intervals(TI,GeomAbs_CN);
|
|
C.D0(C.FirstParameter(),aPoint2d);
|
|
aDisplay.MoveTo(aPoint2d);
|
|
for (intrv = 1; intrv <= nbintv; intrv++) {
|
|
if (C.GetType() != GeomAbs_Line) {
|
|
Standard_Real t = TI(intrv);
|
|
Standard_Real step = (TI(intrv+1) - t) / myDiscret;
|
|
for (Standard_Integer i = 1; i < myDiscret; i++) {
|
|
t += step;
|
|
C.D0(t,aPoint2d);
|
|
aDisplay.DrawTo(aPoint2d);
|
|
}
|
|
}
|
|
C.D0(TI(intrv+1),aPoint2d);
|
|
aDisplay.DrawTo(aPoint2d);
|
|
}
|
|
}
|
|
}
|
|
|
|
//=======================================================================
|
|
//static function : PlotCurve
|
|
//purpose : draw a 3D curve
|
|
//=======================================================================
|
|
static void PlotCurve (Draw_Display& aDisplay,
|
|
const Adaptor3d_Curve& C,
|
|
Standard_Real& theFirstParam,
|
|
Standard_Real theHalfStep,
|
|
const gp_Pnt& theFirstPnt,
|
|
const gp_Pnt& theLastPnt)
|
|
{
|
|
Standard_Real IsoRatio = 1.001;
|
|
gp_Pnt Pm;
|
|
|
|
C.D0 (theFirstParam + theHalfStep, Pm);
|
|
|
|
Standard_Real dfLength = theFirstPnt.Distance(theLastPnt);
|
|
if (dfLength < Precision::Confusion() ||
|
|
Pm.Distance(theFirstPnt) + Pm.Distance(theLastPnt) <= IsoRatio*dfLength) {
|
|
aDisplay.DrawTo (theLastPnt);
|
|
} else {
|
|
PlotCurve (aDisplay, C, theFirstParam, theHalfStep/2., theFirstPnt, Pm);
|
|
Standard_Real aLocalF = theFirstParam + theHalfStep;
|
|
PlotCurve (aDisplay, C, aLocalF, theHalfStep/2., Pm, theLastPnt);
|
|
}
|
|
}
|
|
//=======================================================================
|
|
//function : DrawCurveOn
|
|
//purpose : draw a 3D curve
|
|
//=======================================================================
|
|
|
|
void DrawTrSurf_Drawable::DrawCurveOn (Adaptor3d_Curve& C,
|
|
Draw_Display& aDisplay) const
|
|
{
|
|
gp_Pnt P;
|
|
if (myDrawMode == 1)
|
|
{
|
|
Standard_Real Fleche = myDeflection/aDisplay.Zoom();
|
|
GCPnts_UniformDeflection LineVu(C,Fleche);
|
|
if (LineVu.IsDone())
|
|
{
|
|
aDisplay.MoveTo(LineVu.Value(1));
|
|
for (Standard_Integer i = 2; i <= LineVu.NbPoints(); i++)
|
|
{
|
|
aDisplay.DrawTo(LineVu.Value(i));
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Standard_Integer j;
|
|
Standard_Integer intrv, nbintv = C.NbIntervals(GeomAbs_CN);
|
|
TColStd_Array1OfReal TI(1,nbintv+1);
|
|
C.Intervals(TI,GeomAbs_CN);
|
|
C.D0(C.FirstParameter(),P);
|
|
aDisplay.MoveTo(P);
|
|
GeomAbs_CurveType CurvType = C.GetType();
|
|
gp_Pnt aPPnt=P, aNPnt;
|
|
|
|
for (intrv = 1; intrv <= nbintv; intrv++)
|
|
{
|
|
Standard_Real t = TI(intrv);
|
|
Standard_Real step = (TI(intrv+1) - t) / myDiscret;
|
|
|
|
switch (CurvType)
|
|
{
|
|
case GeomAbs_Line:
|
|
break;
|
|
case GeomAbs_Circle:
|
|
case GeomAbs_Ellipse:
|
|
for (j = 1; j < myDiscret; j++)
|
|
{
|
|
t += step;
|
|
C.D0(t,P);
|
|
aDisplay.DrawTo(P);
|
|
}
|
|
break;
|
|
case GeomAbs_Parabola:
|
|
case GeomAbs_Hyperbola:
|
|
case GeomAbs_BezierCurve:
|
|
case GeomAbs_BSplineCurve:
|
|
case GeomAbs_OtherCurve:
|
|
const Standard_Integer nIter = myDiscret/2;
|
|
for (j = 1; j < nIter; j++)
|
|
{
|
|
const Standard_Real t1 = t+step*2.;
|
|
C.D0 (t1, aNPnt);
|
|
PlotCurve (aDisplay, C, t, step, aPPnt, aNPnt);
|
|
aPPnt = aNPnt;
|
|
t = t1;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
C.D0(TI(intrv+1),P);
|
|
PlotCurve (aDisplay, C, t, step, aPPnt, P);
|
|
aDisplay.DrawTo(P);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//=======================================================================
|
|
//function : DrawIsoCurveOn
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void DrawTrSurf_Drawable::DrawIsoCurveOn(Adaptor3d_IsoCurve& C,
|
|
const GeomAbs_IsoType T,
|
|
const Standard_Real P,
|
|
const Standard_Real F,
|
|
const Standard_Real L,
|
|
Draw_Display& dis) const
|
|
{
|
|
C.Load(T,P,F,L);
|
|
if ((C.GetType() == GeomAbs_BezierCurve) ||
|
|
(C.GetType() == GeomAbs_BSplineCurve)) {
|
|
GeomAdaptor_Curve GC;
|
|
if (C.GetType() == GeomAbs_BezierCurve)
|
|
GC.Load(C.Bezier(),F,L);
|
|
else
|
|
GC.Load(C.BSpline(),F,L);
|
|
|
|
DrawCurveOn(GC,dis);
|
|
}
|
|
else
|
|
DrawCurveOn(C,dis);
|
|
|
|
}
|