1 // Copyright (C) 2007-2015 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 #include <HYDROGUI_Polyline.h>
25 #include <AIS_InteractiveContext.hxx>
26 #include <BRep_Tool.hxx>
27 #include <GCPnts_AbscissaPoint.hxx>
28 #include <GeomAdaptor_Curve.hxx>
31 #include <Prs3d_Arrow.hxx>
33 #include <TopoDS_Shape.hxx>
35 #include <TopExp_Explorer.hxx>
37 #include <TopoDS_Edge.hxx>
38 #include <TopoDS_Shape.hxx>
39 #include <TopoDS_Vertex.hxx>
40 #include <BRepBndLib.hxx>
41 #include <Precision.hxx>
43 IMPLEMENT_STANDARD_HANDLE (HYDROGUI_Polyline, AIS_Shape)
44 IMPLEMENT_STANDARD_RTTIEXT(HYDROGUI_Polyline, AIS_Shape)
47 HYDROGUI_Polyline::HYDROGUI_Polyline(const TopoDS_Shape& shape)
52 HYDROGUI_Polyline::~HYDROGUI_Polyline()
56 void HYDROGUI_Polyline::Compute(const Handle(PrsMgr_PresentationManager3d)& aPresentationManager,
57 const Handle(Prs3d_Presentation)& aPrs,
58 const Standard_Integer aMode)
60 AIS_Shape::Compute(aPresentationManager, aPrs, aMode);
62 TopExp_Explorer Exp ( myshape, TopAbs_EDGE );
63 for ( ; Exp.More(); Exp.Next() ) {
64 TopoDS_Vertex aV1, aV2;
65 TopoDS_Edge anEdge = TopoDS::Edge(Exp.Current());
67 if ( anEdge.IsNull() )
69 TopExp::Vertices(anEdge, aV1, aV2);
70 gp_Pnt aP = BRep_Tool::Pnt(aV1);
73 Handle(Geom_Curve) C = BRep_Tool::Curve(anEdge,aFp,aLp);
78 BRepBndLib::Add(anEdge, aBB);
79 Standard_Real aXmin,aYmin,aZmin,aXmax,aYmax,aZmax;
80 aBB.Get(aXmin,aYmin,aZmin,aXmax,aYmax,aZmax);
81 Standard_Real aLen = Max(Abs(aXmax - aXmin), Max (Abs(aZmax - aZmin), Abs(aYmax - aYmin)));
83 GeomAdaptor_Curve aAdC;
84 aAdC.Load(C, aFp, aLp);
88 double aArrLen = aLen / 10.;
89 double anIncr = (aLp-aFp)/aNbSegments;
91 double aMaxRatioStep = 1;
92 for (double t = aFp; t < aLp - anIncr; t += anIncr)
94 aLenC = GCPnts_AbscissaPoint::Length(aAdC, t, t + anIncr);
95 aLenH = C->Value (t).Distance (C->Value (t + anIncr));
96 if ( aLenH / aLenC > aMaxRatio) {
97 aMaxRatio = aLenH / aLenC;
103 if (Abs(aMaxRatioStep) < Precision::Confusion())
105 aMaxRatioStep = (aLp - aFp)/2.0;
109 if (Abs(aLp - aMaxRatioStep) < Precision::Confusion())
111 aMaxRatioStep = (aLp - aFp)/2.0;
115 gp_Pnt aPnt1 = C->Value (aMaxRatioStep);
118 GCPnts_AbscissaPoint aAbsPoint(aAdC, -aArrLen, aMaxRatioStep);
119 double aParam = aAbsPoint.Parameter();
120 gp_Pnt aPnt2 = C->Value (aParam);
121 gp_XYZ D = aPnt1.XYZ();
122 D.Subtract (aPnt2.XYZ());
126 C->D1(aMaxRatioStep, aPnt1, aDir);
128 if ( anEdge.Orientation() == TopAbs_REVERSED )
131 Prs3d_Arrow::Draw(aPrs, aPnt1, aDir, M_PI/180.*12., aArrLen);