// Created on: 1996-08-21 // Created by: Jacques MINOT // Copyright (c) 1996-1999 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include //========================================================================== // function : DsgPrs_DiameterPresentation::Add // purpose : it is possible to choose the symbol of extremities of the face (arrow, point ...) //========================================================================== void DsgPrs_DiameterPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation, const Handle(Prs3d_Drawer)& aDrawer, const TCollection_ExtendedString& aText, const gp_Pnt& AttachmentPoint, const gp_Circ& aCircle, const DsgPrs_ArrowSide ArrowPrs, const Standard_Boolean IsDiamSymbol ) { Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect(); Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect()); Standard_Real parat = ElCLib::Parameter(aCircle, AttachmentPoint); gp_Pnt ptoncirc = ElCLib::Value (parat, aCircle); // sideline gp_Pnt center = aCircle.Location(); gp_Vec vecrap (ptoncirc,center); Standard_Real dist = center.Distance(AttachmentPoint); Standard_Real aRadius = aCircle.Radius(); Standard_Boolean inside = (dist < aRadius); gp_Pnt pt1 = AttachmentPoint; if (inside) { pt1 = ptoncirc; dist = aRadius; } vecrap.Normalize(); vecrap *= (dist+aRadius); gp_Pnt OppositePoint = pt1.Translated(vecrap); Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2); aPrims->AddVertex(pt1); aPrims->AddVertex(OppositePoint); Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims); // value TCollection_ExtendedString Text = aText; if(IsDiamSymbol) Text = TCollection_ExtendedString("\330 ") + aText; // VRO (2007-05-17) inserted a blank. Prs3d_Text::Draw (Prs3d_Root::CurrentGroup (aPresentation), LA->TextAspect(), Text, AttachmentPoint); // arrows gp_Dir arrdir (vecrap); if (inside) arrdir.Reverse(); gp_Vec vecrap2 = vecrap; gp_Pnt ptoncirc2 = ptoncirc; gp_Dir arrdir2 = arrdir; vecrap2.Normalize(); vecrap2 *= (aCircle.Radius() * 2.); ptoncirc2.Translate (vecrap2); arrdir2.Reverse(); DsgPrs::ComputeSymbol(aPresentation,LA,ptoncirc,ptoncirc2,arrdir,arrdir2,ArrowPrs); } static Standard_Boolean DsgPrs_InDomain(const Standard_Real fpar, const Standard_Real lpar, const Standard_Real para) { if (fpar >= 0.) { if(lpar > fpar) return ((para >= fpar) && (para <= lpar)); else { // fpar > lpar Standard_Real delta = 2.*M_PI-fpar; Standard_Real lp, par, fp; lp = lpar + delta; par = para + delta; while(lp > 2*M_PI) lp-=2*M_PI; while(par > 2*M_PI) par-=2*M_PI; fp = 0.; return ((par >= fp) && (par <= lp)); } } if (para >= (fpar+2*M_PI)) return Standard_True; if (para <= lpar) return Standard_True; return Standard_False; } //======================================================================= //function : DsgPrs_DiameterPresentation::Add //purpose : SZY 12-february-98 //======================================================================= void DsgPrs_DiameterPresentation::Add (const Handle(Prs3d_Presentation)& aPresentation, const Handle(Prs3d_Drawer)& aDrawer, const TCollection_ExtendedString& aText, const gp_Pnt& AttachmentPoint, const gp_Circ& aCircle, const Standard_Real uFirst, const Standard_Real uLast, const DsgPrs_ArrowSide ArrowPrs,//ArrowSide const Standard_Boolean IsDiamSymbol ) { Standard_Real fpara = uFirst; Standard_Real lpara = uLast; while (lpara > 2.*M_PI) { fpara -= 2.*M_PI; lpara -= 2.*M_PI; } Handle(Prs3d_DimensionAspect) LA = aDrawer->DimensionAspect(); Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(LA->LineAspect()->Aspect()); Standard_Real parEndOfArrow = ElCLib::Parameter(aCircle,AttachmentPoint); gp_Pnt EndOfArrow; gp_Pnt DrawPosition = AttachmentPoint;// point of attachment gp_Pnt Center = aCircle.Location(); gp_Pnt FirstPoint = ElCLib::Value(uFirst, aCircle); gp_Pnt SecondPoint = ElCLib::Value(uLast, aCircle); if ( !DsgPrs_InDomain(fpara,lpara,parEndOfArrow)) { Standard_Real otherpar = parEndOfArrow + M_PI;// not in domain if (otherpar > 2*M_PI) otherpar -= 2*M_PI; if (DsgPrs_InDomain(fpara,lpara,otherpar)) { parEndOfArrow = otherpar; // parameter on circle EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle); } else { gp_Dir dir1(gp_Vec(Center, FirstPoint)); gp_Dir dir2(gp_Vec(Center, SecondPoint)); gp_Lin L1( Center, dir1 ); gp_Lin L2( Center, dir2 ); if(L1.Distance(AttachmentPoint) < L2.Distance(AttachmentPoint)) { EndOfArrow = FirstPoint; //*** DrawPosition = ElCLib::Value(ElCLib::Parameter( L1, AttachmentPoint ), L1); } else { EndOfArrow = SecondPoint; //*** DrawPosition = ElCLib::Value(ElCLib::Parameter( L2, AttachmentPoint ), L2); } } } else { EndOfArrow = ElCLib::Value(parEndOfArrow, aCircle); DrawPosition = AttachmentPoint; } Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2); aPrims->AddVertex(DrawPosition); aPrims->AddVertex(EndOfArrow); Prs3d_Root::CurrentGroup(aPresentation)->AddPrimitiveArray(aPrims); // text TCollection_ExtendedString Text = aText; if(IsDiamSymbol) Text = TCollection_ExtendedString("\330 ") + Text;// => \330 | \370? Prs3d_Text::Draw (Prs3d_Root::CurrentGroup (aPresentation), LA->TextAspect(), Text, DrawPosition); // Add presentation of arrow gp_Dir DirOfArrow(gp_Vec(DrawPosition, EndOfArrow).XYZ()); DsgPrs::ComputeSymbol(aPresentation, LA, EndOfArrow, EndOfArrow, DirOfArrow, DirOfArrow, ArrowPrs); }