| 1 | // Copyright: Matra-Datavision 1995 |
| 2 | |
| 3 | #include "stdafx.h" |
| 4 | |
| 5 | #include <ISession2D_SensitiveCurve.h> |
| 6 | |
| 7 | IMPLEMENT_STANDARD_HANDLE(ISession2D_SensitiveCurve,Select2D_SensitiveEntity) |
| 8 | IMPLEMENT_STANDARD_RTTIEXT(ISession2D_SensitiveCurve,Select2D_SensitiveEntity) |
| 9 | |
| 10 | #include <Bnd_Box2d.hxx> |
| 11 | #include <gp_Lin2d.hxx> |
| 12 | #include <gp_Dir2d.hxx> |
| 13 | #include <gp_Vec2d.hxx> |
| 14 | #include <TColgp_Array1OfPnt2d.hxx> |
| 15 | #include <SelectBasics_BasicTool.hxx> |
| 16 | #include "GCPnts_TangentialDeflection.hxx" |
| 17 | #include "Geom2dAdaptor_Curve.hxx" |
| 18 | |
| 19 | //===================================================== |
| 20 | // Function : Create |
| 21 | // Purpose :Constructor |
| 22 | //===================================================== |
| 23 | |
| 24 | |
| 25 | ISession2D_SensitiveCurve:: |
| 26 | ISession2D_SensitiveCurve(const Handle(SelectBasics_EntityOwner)& OwnerId, |
| 27 | const Handle(Geom2d_Curve)& C, |
| 28 | const Standard_Real CDeflect, |
| 29 | const Standard_Integer MaxRect): |
| 30 | Select2D_SensitiveEntity(OwnerId), |
| 31 | myMaxRect(MaxRect), |
| 32 | myCurve(C), |
| 33 | myCDeflect(CDeflect) |
| 34 | { |
| 35 | Compute(); |
| 36 | } |
| 37 | |
| 38 | void ISession2D_SensitiveCurve::Compute() |
| 39 | { |
| 40 | Geom2dAdaptor_Curve Curve (myCurve); |
| 41 | Standard_Real ADeflect = 180; //Angular deflection |
| 42 | |
| 43 | GCPnts_TangentialDeflection PointsOnCurve; |
| 44 | PointsOnCurve.Initialize (Curve, ADeflect, myCDeflect,myMaxRect,1.0e-9); |
| 45 | |
| 46 | |
| 47 | myPolyP2d = new TColgp_HArray1OfPnt2d(1,PointsOnCurve.NbPoints()); |
| 48 | |
| 49 | gp_Pnt P; |
| 50 | for (Standard_Integer i=1; i<=PointsOnCurve.NbPoints();i++) { |
| 51 | P = PointsOnCurve.Value (i); |
| 52 | myPolyP2d->SetValue(i,gp_Pnt2d(P.X(),P.Y())); |
| 53 | } |
| 54 | |
| 55 | } |
| 56 | |
| 57 | |
| 58 | //===================================================== |
| 59 | // Function : Areas |
| 60 | // Purpose : return the bounding boxes |
| 61 | //===================================================== |
| 62 | void ISession2D_SensitiveCurve::Areas(SelectBasics_ListOfBox2d& boxes) |
| 63 | { |
| 64 | // calcul des Areas --> le nombre voulu est myMaxRect |
| 65 | // mais il y a myPolyP2d->Length() segments |
| 66 | |
| 67 | Standard_Integer NbSeg = myPolyP2d->Length()-1; |
| 68 | Standard_Integer nbPerBoxes= NbSeg/myMaxRect; |
| 69 | |
| 70 | Standard_Integer CurrentPoint =1; |
| 71 | for (Standard_Integer i=1;i<=myMaxRect-1;i++) |
| 72 | { |
| 73 | Bnd_Box2d abox; |
| 74 | abox.Set(myPolyP2d->Value(CurrentPoint)); |
| 75 | for(Standard_Integer j=1;j<=nbPerBoxes;j++) |
| 76 | { |
| 77 | CurrentPoint++; |
| 78 | abox.Add(myPolyP2d->Value(CurrentPoint)); |
| 79 | } |
| 80 | boxes.Append(abox); |
| 81 | } |
| 82 | Bnd_Box2d abox; |
| 83 | abox.Set(myPolyP2d->Value(CurrentPoint)); |
| 84 | for(Standard_Integer j=CurrentPoint;j<=myPolyP2d->Length()-1;j++) |
| 85 | { |
| 86 | CurrentPoint++; |
| 87 | abox.Add(myPolyP2d->Value(CurrentPoint)); |
| 88 | } |
| 89 | boxes.Append(abox); |
| 90 | |
| 91 | } |
| 92 | |
| 93 | //======================================================= |
| 94 | // Function : Matches |
| 95 | // Purpose : test : segments in the bounding boxe |
| 96 | //======================================================= |
| 97 | Standard_Boolean ISession2D_SensitiveCurve:: |
| 98 | Matches (const Standard_Real XMin, |
| 99 | const Standard_Real YMin, |
| 100 | const Standard_Real XMax, |
| 101 | const Standard_Real YMax, |
| 102 | const Standard_Real aTol) |
| 103 | { |
| 104 | |
| 105 | Bnd_Box2d BoundBox; |
| 106 | BoundBox.Update(XMin-aTol,YMin-aTol,XMax+aTol,YMax+aTol); |
| 107 | |
| 108 | for(Standard_Integer j=1;j<=myPolyP2d->Length()-1;j++) |
| 109 | { |
| 110 | if(BoundBox.IsOut(myPolyP2d->Value(j))) return Standard_False; |
| 111 | } |
| 112 | return Standard_True; |
| 113 | |
| 114 | } |
| 115 | |
| 116 | //==================================================== |
| 117 | // Function : Matches |
| 118 | // Purpose : test the real dist to the segments |
| 119 | //==================================================== |
| 120 | Standard_Boolean ISession2D_SensitiveCurve:: |
| 121 | Matches(const Standard_Real X, |
| 122 | const Standard_Real Y, |
| 123 | const Standard_Real aTol, |
| 124 | Standard_Real& DMin) |
| 125 | { |
| 126 | // VERY VERY IMPORTANT : set the selector sensibility !!! ( it's aTol !! ) |
| 127 | Standard_Integer Rank=0; // New in 2.0 |
| 128 | if (aTol == 0) {TRACE0("VERY VERY IMPORTANT : set the selector sensibility !!! ( it's aTol !! )");} |
| 129 | |
| 130 | Standard_Boolean Result = SelectBasics_BasicTool::MatchPolyg2d(myPolyP2d->Array1(), |
| 131 | X,Y, |
| 132 | aTol, |
| 133 | DMin, |
| 134 | Rank); // new in 2.0 |
| 135 | return Result; |
| 136 | } |
| 137 | |
| 138 | |
| 139 | Handle(TColgp_HArray1OfPnt2d) ISession2D_SensitiveCurve:: |
| 140 | SensitivePolygon() |
| 141 | { |
| 142 | return myPolyP2d; |
| 143 | } |
| 144 | |
| 145 | |