samples/mfc/standard/Common/Primitive/Sample2D_Face.cpp

   1 #include "stdafx.h"
   2
   3 #include "Sample2D_Face.h"
   4
   5 IMPLEMENT_STANDARD_HANDLE(Sample2D_Face,AIS2D_InteractiveObject)
   6 IMPLEMENT_STANDARD_RTTIEXT(Sample2D_Face,AIS2D_InteractiveObject)
   7
   8 Sample2D_Face::Sample2D_Face (TopoDS_Face& aFace)
   9     :AIS2D_InteractiveObject(),myFace(aFace)
  10
  11 {
  12 myMarkerIndex        = 1;
  13 myMarkerWidth        = 5;
  14 myMarkerHeight       = 5;
  15 myFORWARDColorIndex  = 2;
  16 myREVERSEDColorIndex = 3;
  17 myINTERNALColorIndex = 4;
  18 myEXTERNALColorIndex = 5;
  19 myWidthIndex         = 1;
  20 myTypeIndex          = 1;
  21 }
  22
  23
  24 #include "TopExp_Explorer.hxx"
  25 #include "BRep_Tool.hxx"
  26 #include "TopoDS.hxx"
  27 #include "TopoDS_Edge.hxx"
  28 #include "TopoDS.hxx"
  29 #include "TopoDS_Vertex.hxx"
  30 #include "TopExp.hxx"
  31 #include "Graphic2d_Marker.hxx"
  32 #include "Graphic2d_PolylineMarker.hxx"
  33 #include "gp.hxx"
  34 #include "Prs2d_AspectLine.hxx"
  35 #include "Graphic2d_TypeOfPolygonFilling.hxx"
  36
  37 void Sample2D_Face::SetContext(const Handle(AIS2D_InteractiveContext)& theContext)
  38 {
  39     if(myFace.IsNull() || myFace.ShapeType()!=TopAbs_FACE) return;
  40
  41     AIS2D_InteractiveObject::SetContext(theContext);
  42
  43     Handle(Prs2d_AspectLine) aLineAspect_FORWARD = new Prs2d_AspectLine;
  44
  45         aLineAspect_FORWARD->SetTypeOfFill(Graphic2d_TOPF_EMPTY);
  46     aLineAspect_FORWARD->SetTypeIndex(myTypeIndex);
  47     aLineAspect_FORWARD->SetWidthIndex(myWidthIndex);
  48     aLineAspect_FORWARD->SetColorIndex(myFORWARDColorIndex);
  49
  50         Handle(Prs2d_AspectLine) aLineAspect_REVERSED = new Prs2d_AspectLine;
  51     aLineAspect_REVERSED->SetTypeOfFill(Graphic2d_TOPF_EMPTY);
  52     aLineAspect_REVERSED->SetTypeIndex(myTypeIndex);
  53     aLineAspect_REVERSED->SetWidthIndex(myWidthIndex);
  54     aLineAspect_REVERSED->SetColorIndex(myREVERSEDColorIndex);
  55
  56         Handle(Prs2d_AspectLine) aLineAspect_INTERNAL = new Prs2d_AspectLine;
  57     aLineAspect_INTERNAL->SetTypeOfFill(Graphic2d_TOPF_EMPTY);
  58     aLineAspect_INTERNAL->SetTypeIndex(myTypeIndex);
  59     aLineAspect_INTERNAL->SetWidthIndex(myWidthIndex);
  60     aLineAspect_INTERNAL->SetColorIndex(myINTERNALColorIndex);
  61
  62         Handle(Prs2d_AspectLine) aLineAspect_EXTERNAL = new Prs2d_AspectLine;
  63     aLineAspect_EXTERNAL->SetTypeOfFill(Graphic2d_TOPF_EMPTY);
  64     aLineAspect_EXTERNAL->SetTypeIndex(myTypeIndex);
  65     aLineAspect_EXTERNAL->SetWidthIndex(myWidthIndex);
  66     aLineAspect_EXTERNAL->SetColorIndex(myEXTERNALColorIndex);
  67
  68     // pcurves of a face
  69
  70     Handle(Graphic2d_SetOfCurves) segment_FORWARD;
  71     segment_FORWARD = new Graphic2d_SetOfCurves(this);
  72
  73     Handle(Graphic2d_SetOfCurves) segment_REVERSED;
  74     segment_REVERSED = new Graphic2d_SetOfCurves(this);
  75
  76     Handle(Graphic2d_SetOfCurves) segment_INTERNAL;
  77     segment_INTERNAL = new Graphic2d_SetOfCurves(this);
  78
  79     Handle(Graphic2d_SetOfCurves) segment_EXTERNAL;
  80     segment_EXTERNAL = new Graphic2d_SetOfCurves(this);
  81
  82     Standard_Real f,l;
  83     Standard_Integer i = 1;
  84     myFace.Orientation(TopAbs_FORWARD);
  85     TopExp_Explorer ex(myFace,TopAbs_EDGE);
  86     while (ex.More()) {
  87       const Handle(Geom2d_Curve) Curve = BRep_Tool::CurveOnSurface
  88                  (TopoDS::Edge(ex.Current()),TopoDS::Face(myFace),f,l);
  89
  90       Handle(Geom2d_TrimmedCurve) c = new Geom2d_TrimmedCurve(Curve,f,l);
  91
  92       if (c.IsNull())
  93       {
  94         // null curve --> EDGE have a null lenght
  95         // --> get first and last Vertices
  96         TopoDS_Edge CurrentEdge= TopoDS::Edge(ex.Current());
  97
  98         TopoDS_Vertex FirstVertex = TopExp::FirstVertex(CurrentEdge);
  99         TopoDS_Vertex LastVertex  = TopExp::LastVertex(CurrentEdge);
 100
 101         if (FirstVertex != LastVertex)
 102           Standard_Failure::Raise("Null Edge pcurve But different vertices");
 103
 104          gp_Pnt aPnt  = BRep_Tool::Pnt(FirstVertex);
 105
 106
 107         Handle(Graphic2d_Marker) aMarker=
 108            new Graphic2d_Marker(this,myMarkerIndex,
 109                                 aPnt.X() ,aPnt.Y(),
 110                                 myMarkerWidth,myMarkerHeight,0);
 111
 112         switch (ex.Current().Orientation())
 113         {
 114           case TopAbs_FORWARD:  aMarker->SetColorIndex (myFORWARDColorIndex);   break;
 115           case TopAbs_REVERSED: aMarker->SetColorIndex (myREVERSEDColorIndex);  break;
 116           case TopAbs_INTERNAL: aMarker->SetColorIndex (myINTERNALColorIndex);  break;
 117           case TopAbs_EXTERNAL: aMarker->SetColorIndex (myEXTERNALColorIndex);  break;
 118           default : break;
 119         }
 120         ex.Next();
 121       }
 122       else
 123       {
 124         gp_Pnt2d p1,p2;
 125         gp_Vec2d v;
 126         c->D1(l,p1,v);
 127         Graphic2d_Array1OfVertex aListVertex(1,3);
 128         if (v.Magnitude() > gp::Resolution()) {
 129             Standard_Real L = 2;
 130             Standard_Real H = 1;
 131             gp_Dir2d d(v);
 132             p2.SetCoord(- L*d.X() - H*d.Y(),- L*d.Y() + H*d.X());
 133             aListVertex(1)=Graphic2d_Vertex(p2.X(),p2.Y());
 134
 135             p2.SetCoord(- L*d.X() + H*d.Y(),- L*d.Y() - H*d.X());
 136             aListVertex(2)=Graphic2d_Vertex(0.,0.);
 137             aListVertex(3)=Graphic2d_Vertex(p2.X(),p2.Y());
 138         }
 139
 140         Handle(Graphic2d_PolylineMarker) aMarker=
 141           new Graphic2d_PolylineMarker(this,p1.X(),p1.Y(),aListVertex);
 142
 143                 // Display the Curve
 144
 145                 switch (ex.Current().Orientation())
 146         {
 147                 case TopAbs_FORWARD: {
 148              segment_FORWARD->Add(c);
 149              SetAspect(aLineAspect_FORWARD, aMarker);
 150              break;
 151                 }
 152                 case TopAbs_REVERSED: {
 153              segment_REVERSED->Add(c);
 154              SetAspect(aLineAspect_REVERSED, aMarker);
 155              break;
 156                 }
 157                 case TopAbs_INTERNAL: {
 158              segment_INTERNAL->Add(c);
 159              SetAspect(aLineAspect_INTERNAL, aMarker);
 160              break;
 161                 }
 162                 case TopAbs_EXTERNAL: {
 163              segment_EXTERNAL->Add(c);
 164              SetAspect(aLineAspect_EXTERNAL, aMarker);
 165              break;
 166                 }
 167           default : break;
 168         }
 169       }
 170       ex.Next();
 171     }
 172
 173
 174
 175         SetAspect(aLineAspect_FORWARD, segment_FORWARD);
 176         SetAspect(aLineAspect_REVERSED, segment_REVERSED);
 177     SetAspect(aLineAspect_INTERNAL, segment_INTERNAL);
 178         SetAspect(aLineAspect_EXTERNAL, segment_EXTERNAL);
 179 }
 180
 181
 182
 183