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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.
98 lines
3.6 KiB
C++
98 lines
3.6 KiB
C++
// 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 <Prs3d_Arrow.ixx>
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#include <Graphic3d_Group.hxx>
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#include <Graphic3d_ArrayOfSegments.hxx>
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#include <Graphic3d_ArrayOfPolylines.hxx>
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//=======================================================================
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//function : Draw
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//purpose :
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//=======================================================================
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void Prs3d_Arrow::Draw(const Handle(Prs3d_Presentation)& aPresentation,
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const gp_Pnt& aLocation,
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const gp_Dir& aDirection,
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const Quantity_PlaneAngle anAngle,
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const Quantity_Length aLength)
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{
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Quantity_Length dx,dy,dz; aDirection.Coord(dx,dy,dz);
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//
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// Point of the arrow:
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Quantity_Length xo,yo,zo; aLocation.Coord(xo,yo,zo);
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// Center of the base circle of the arrow:
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Quantity_Length xc = xo - dx * aLength;
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Quantity_Length yc = yo - dy * aLength;
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Quantity_Length zc = zo - dz * aLength;
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// Construction of i,j mark for the circle:
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Quantity_Length xn=0., yn=0., zn=0.;
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if ( Abs(dx) <= Abs(dy) && Abs(dx) <= Abs(dz)) xn=1.;
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else if ( Abs(dy) <= Abs(dz) && Abs(dy) <= Abs(dx)) yn=1.;
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else zn=1.;
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Quantity_Length xi = dy * zn - dz * yn;
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Quantity_Length yi = dz * xn - dx * zn;
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Quantity_Length zi = dx * yn - dy * xn;
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Quantity_Length Norme = sqrt ( xi*xi + yi*yi + zi*zi );
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xi = xi / Norme; yi = yi / Norme; zi = zi/Norme;
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const Quantity_Length xj = dy * zi - dz * yi;
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const Quantity_Length yj = dz * xi - dx * zi;
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const Quantity_Length zj = dx * yi - dy * xi;
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const Standard_Integer NbPoints = 15;
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Handle(Graphic3d_ArrayOfSegments) aPrims1 = new Graphic3d_ArrayOfSegments(2*NbPoints);
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Handle(Graphic3d_ArrayOfPolylines) aPrims2 = new Graphic3d_ArrayOfPolylines(NbPoints+1);
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gp_Pnt p1;
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const Standard_Real Tg=tan(anAngle);
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for (Standard_Integer i = 1; i <= NbPoints ; i++)
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{
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const Standard_Real cosinus = cos ( 2 * M_PI / NbPoints * (i-1) );
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const Standard_Real sinus = sin ( 2 * M_PI / NbPoints * (i-1) );
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const gp_Pnt pp(xc + (cosinus * xi + sinus * xj) * aLength * Tg,
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yc + (cosinus * yi + sinus * yj) * aLength * Tg,
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zc + (cosinus * zi + sinus * zj) * aLength * Tg);
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aPrims1->AddVertex(aLocation);
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aPrims1->AddVertex(pp);
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if(i==1) p1 = pp;
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aPrims2->AddVertex(pp);
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}
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aPrims2->AddVertex(p1);
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims1);
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Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims2);
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}
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//=======================================================================
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//function : Fill
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//purpose :
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//=======================================================================
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void Prs3d_Arrow::Fill(const Handle(Prs3d_Presentation)& /*aPresentation*/,
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const gp_Pnt& /*aLocation*/,
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const gp_Dir& /*aDirection*/,
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const Quantity_PlaneAngle /*anAngle*/,
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const Quantity_Length /*aLength*/)
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{
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}
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