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0031570: Samples - add Qt samples similar to standard MFC samples

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Added Qt sample OCCTOverview providing examples of use of OCCT API with relevant code and demonstration of results in the viewer.

Off-topic: some unused images are removed from dox/introduction/images/
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asuraven
2020-05-26 14:16:46 +03:00
committed by bugmaster
parent 50ae6dad80
commit a2176e6524
142 changed files with 13409 additions and 24 deletions
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samples/OCCTOverview/code/AdaptorCurve2d_AIS.cxx Normal file
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// Copyright (c) 2020 OPEN CASCADE SAS
//
// This file is part of the examples of the Open CASCADE Technology software library.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
#include "AdaptorCurve2d_AIS.h"
#include <Prs3d_LineAspect.hxx>
#include <Prs3d_PointAspect.hxx>
#include <StdPrs_PoleCurve.hxx>
#include <Geom2dAdaptor_Curve.hxx>
#include <GCPnts_QuasiUniformDeflection.hxx>
#include <Graphic3d_ArrayOfPolylines.hxx>
#include <Geom2d_BezierCurve.hxx>
#include <Geom2d_BSplineCurve.hxx>
#include <Geom2dLProp_CLProps2d.hxx>
AdaptorCurve2d_AIS::AdaptorCurve2d_AIS (const Handle(Geom2d_Curve)& theGeom2dCurve,
const Aspect_TypeOfLine theTypeOfLine,
const Aspect_WidthOfLine theWidthOfLine)
: myGeom2dCurve (theGeom2dCurve),
myTypeOfLine (theTypeOfLine),
myWidthOfLine (theWidthOfLine),
myDisplayPole (Standard_True),
myDisplayCurbure (Standard_False),
myDiscretisation (20),
myradiusmax (10),
myradiusratio (1)
{
//
}
void AdaptorCurve2d_AIS::Compute (const Handle(PrsMgr_PresentationManager3d)&,
const Handle(Prs3d_Presentation)& thePrs,
const Standard_Integer theMode)
{
if (theMode != 0)
{
return;
}
Geom2dAdaptor_Curve anAdaptor(myGeom2dCurve);
GCPnts_QuasiUniformDeflection anEdgeDistrib(anAdaptor, 1.e-2);
if (anEdgeDistrib.IsDone())
{
Handle(Graphic3d_ArrayOfPolylines) aCurve = new Graphic3d_ArrayOfPolylines(anEdgeDistrib.NbPoints());
for (Standard_Integer i = 1; i <= anEdgeDistrib.NbPoints(); ++i)
{
aCurve->AddVertex(anEdgeDistrib.Value(i));
}
Handle(Graphic3d_Group) aPrsGroup = thePrs->NewGroup();
aPrsGroup->SetGroupPrimitivesAspect(myDrawer->LineAspect()->Aspect());
aPrsGroup->AddPrimitiveArray(aCurve);
}
if (myDisplayPole)
{
if (anAdaptor.GetType() == GeomAbs_BezierCurve)
{
Handle(Geom2d_BezierCurve) aBezier = anAdaptor.Bezier();
Handle(Graphic3d_ArrayOfPolylines) anArrayOfVertex = new Graphic3d_ArrayOfPolylines(aBezier->NbPoles());
for (int i = 1; i <= aBezier->NbPoles(); i++)
{
gp_Pnt2d CurrentPoint = aBezier->Pole(i);
anArrayOfVertex->AddVertex(CurrentPoint.X(), CurrentPoint.Y(), 0.);
}
Handle(Graphic3d_Group) aPrsGroup = thePrs->NewGroup();
aPrsGroup->SetGroupPrimitivesAspect(myDrawer->LineAspect()->Aspect());
aPrsGroup->AddPrimitiveArray(anArrayOfVertex);
}
if (anAdaptor.GetType() == GeomAbs_BSplineCurve)
{
Handle(Geom2d_BSplineCurve) aBSpline = anAdaptor.BSpline();
Handle(Graphic3d_ArrayOfPolylines) anArrayOfVertex = new Graphic3d_ArrayOfPolylines(aBSpline->NbPoles());
for (int i = 1; i <= aBSpline->NbPoles(); i++)
{
gp_Pnt2d CurrentPoint = aBSpline->Pole(i);
anArrayOfVertex->AddVertex(CurrentPoint.X(), CurrentPoint.Y(), 0.);
}
Handle(Graphic3d_Group) aPrsGroup = thePrs->NewGroup();
aPrsGroup->SetGroupPrimitivesAspect(myDrawer->LineAspect()->Aspect());
aPrsGroup->AddPrimitiveArray(anArrayOfVertex);
}
}
if (myDisplayCurbure && (anAdaptor.GetType() != GeomAbs_Line))
{
const Standard_Integer nbintv = anAdaptor.NbIntervals(GeomAbs_CN);
TColStd_Array1OfReal TI(1, nbintv + 1);
anAdaptor.Intervals(TI, GeomAbs_CN);
Standard_Real Resolution = 1.0e-9, Curvature;
Geom2dLProp_CLProps2d LProp(myGeom2dCurve, 2, Resolution);
gp_Pnt2d P1, P2;
Handle(Graphic3d_Group) aPrsGroup = thePrs->NewGroup();
aPrsGroup->SetGroupPrimitivesAspect (myDrawer->LineAspect()->Aspect());
for (Standard_Integer intrv = 1; intrv <= nbintv; intrv++)
{
Standard_Real t = TI(intrv);
Standard_Real step = (TI(intrv + 1) - t) / GetDiscretisation();
Standard_Real LRad, ratio;
for (Standard_Integer ii = 1; ii <= myDiscretisation; ii++)
{
LProp.SetParameter(t);
if (LProp.IsTangentDefined())
{
Curvature = Abs(LProp.Curvature());
if (Curvature > Resolution)
{
myGeom2dCurve->D0(t, P1);
LRad = 1. / Curvature;
ratio = ((LRad > myradiusmax) ? myradiusmax / LRad : 1);
ratio *= myradiusratio;
LProp.CentreOfCurvature(P2);
gp_Vec2d V(P1, P2);
gp_Pnt2d P3 = P1.Translated(ratio*V);
Handle(Graphic3d_ArrayOfPolylines) aSegment = new Graphic3d_ArrayOfPolylines(2);
aSegment->AddVertex(P1.X(), P1.Y(), 0.);
aSegment->AddVertex(P3.X(), P3.Y(), 0.);
aPrsGroup->AddPrimitiveArray(aSegment);
}
}
t += step;
}
}
}
}