1 // Created on: 1998-01-22
2 // Created by: Sergey ZARITCHNY
3 // Copyright (c) 1998-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #include <AIS_EllipseRadiusDimension.ixx>
19 #include <TCollection_ExtendedString.hxx>
26 #include <BRepAdaptor_Surface.hxx>
27 #include <BRepAdaptor_Curve.hxx>
29 #include <Geom_Ellipse.hxx>
30 #include <Geom_TrimmedCurve.hxx>
31 #include <Geom_Plane.hxx>
32 #include <Geom_Surface.hxx>
33 #include <Geom_CylindricalSurface.hxx>
34 #include <Geom_SurfaceOfRevolution.hxx>
35 #include <Geom_CylindricalSurface.hxx>
36 #include <Geom_SurfaceOfLinearExtrusion.hxx>
37 #include <GeomAPI_ExtremaCurveCurve.hxx>
38 #include <Geom_Line.hxx>
39 #include <GeomAPI.hxx>
47 #include <gp_Elips.hxx>
51 #include <Precision.hxx>
53 #include <TopExp_Explorer.hxx>
55 //=======================================================================
56 //function : AIS_EllipseRadiusDimension
58 //=======================================================================
60 AIS_EllipseRadiusDimension::AIS_EllipseRadiusDimension(const TopoDS_Shape& aShape,
61 const TCollection_ExtendedString& aText)
66 // ComputeGeometry( );
69 //=======================================================================
70 //function : ComputeGeometry
72 //=======================================================================
74 void AIS_EllipseRadiusDimension::ComputeGeometry()
77 switch (myFShape.ShapeType()) {
80 // compute one face case
81 ComputeFaceGeometry ();
86 ComputeEdgeGeometry ();
92 while (myFirstPar > 2*M_PI) myFirstPar -= 2*M_PI;
93 while (myLastPar > 2*M_PI) myLastPar -= 2*M_PI;
94 while (myFirstPar < 0.0) myFirstPar += 2*M_PI;
95 while (myLastPar < 0.0) myLastPar += 2*M_PI;
98 //=======================================================================
99 //function : ComputeFaceGeometry
101 //=======================================================================
103 void AIS_EllipseRadiusDimension::ComputeFaceGeometry()
107 Handle( Geom_Surface ) aBasisSurf;
108 AIS_KindOfSurface aSurfType;
109 Standard_Real Offset;
110 AIS::GetPlaneFromFace( TopoDS::Face( myFShape),
116 if ( aSurfType == AIS_KOS_Plane )
117 ComputePlanarFaceGeometry( );
119 ComputeCylFaceGeometry( aSurfType, aBasisSurf, Offset );
123 //=======================================================================
124 //function : ComputeCylFaceGeometry
125 //purpose : defines Ellipse and plane of dimension
126 //=======================================================================
128 void AIS_EllipseRadiusDimension::ComputeCylFaceGeometry(const AIS_KindOfSurface aSurfType,
129 const Handle( Geom_Surface )& aBasisSurf,
130 const Standard_Real Offset)
133 BRepAdaptor_Surface surf1(TopoDS::Face(myFShape));
134 Standard_Real vFirst, vLast;
135 vFirst = surf1.FirstVParameter();
136 vLast = surf1.LastVParameter();
137 Standard_Real vMid = (vFirst + vLast)*0.5;
140 // Standard_Real Param;
141 if (aSurfType == AIS_KOS_Extrusion)
143 Axis.SetDirection((Handle( Geom_SurfaceOfLinearExtrusion )::DownCast( aBasisSurf ))
145 Axis.SetLocation( gp_Pnt((Handle( Geom_SurfaceOfLinearExtrusion )::DownCast( aBasisSurf ))
146 ->Direction().XYZ() ) );
148 aPlane.SetAxis(Axis);
149 aPlane.SetLocation(myEllipse.Location());
150 myPlane = new Geom_Plane(aPlane);
152 Handle(Geom_Curve) aCurve;
153 aCurve = aBasisSurf->VIso(vMid);
154 if (aCurve->DynamicType() == STANDARD_TYPE(Geom_Ellipse))
156 myEllipse = Handle(Geom_Ellipse)::DownCast(aCurve)-> Elips();//gp_Elips
157 myIsAnArc = Standard_False;
159 else if (aCurve->DynamicType() == STANDARD_TYPE(Geom_TrimmedCurve)) {
160 Handle(Geom_TrimmedCurve) tCurve = Handle(Geom_TrimmedCurve)::DownCast(aCurve);
161 aCurve = tCurve->BasisCurve();
162 myFirstPar = tCurve->FirstParameter();
163 myLastPar = tCurve->LastParameter();
164 myIsAnArc = Standard_True;
165 if (aCurve->DynamicType() == STANDARD_TYPE(Geom_Ellipse))
167 myEllipse = Handle(Geom_Ellipse)::DownCast(aCurve)->Elips();//gp_Elips
172 Standard_ConstructionError::Raise("AIS:: Not expected type of surface") ;
178 if(surf1.GetType() == GeomAbs_OffsetSurface)
180 if(Offset <0.0 && Abs(Offset) > myEllipse.MinorRadius ())
182 Standard_ConstructionError::Raise("AIS:: Absolute value of negative offset is larger than MinorRadius");
186 myOffsetCurve = new Geom_OffsetCurve(new Geom_Ellipse(myEllipse), Offset,
187 myPlane->Pln().Axis().Direction());
189 myIsOffset = Standard_True;
190 gp_Elips elips = myEllipse;
191 Standard_Real Val = Offset + elips.MajorRadius ();//simulation
192 myEllipse.SetMajorRadius (Val);
193 Val = Offset + elips.MinorRadius ();
194 myEllipse.SetMinorRadius (Val);
197 myIsOffset = Standard_False;
202 //=======================================================================
203 //function : ComputePlanarFaceGeometry
205 //=======================================================================
207 void AIS_EllipseRadiusDimension::ComputePlanarFaceGeometry()
210 Standard_Boolean find = Standard_False;
211 gp_Pnt ptfirst,ptend;
212 TopExp_Explorer ExploEd( TopoDS::Face(myFShape), TopAbs_EDGE );
213 for ( ; ExploEd.More(); ExploEd.Next())
215 TopoDS_Edge curedge = TopoDS::Edge( ExploEd.Current() );
216 Handle(Geom_Curve) curv;
217 Handle(Geom_Ellipse) ellips;
218 if (AIS::ComputeGeometry(curedge,curv,ptfirst,ptend))
220 if (curv->DynamicType() == STANDARD_TYPE(Geom_Ellipse))
222 ellips = Handle(Geom_Ellipse)::DownCast(curv);
223 if ( !ellips.IsNull() ) {
224 myEllipse = ellips->Elips();
225 find = Standard_True;
233 Standard_ConstructionError::Raise("AIS:: Curve is not an ellipsee or is Null") ;
237 if ( !ptfirst.IsEqual(ptend, Precision::Confusion()) )
239 myIsAnArc = Standard_True;
240 myFirstPar = ElCLib::Parameter(myEllipse, ptfirst);
241 myLastPar = ElCLib::Parameter(myEllipse, ptend);
244 myIsAnArc = Standard_False;
246 BRepAdaptor_Surface surfAlgo (TopoDS::Face(myFShape));
247 myPlane = new Geom_Plane( surfAlgo.Plane() );
253 //=======================================================================
254 //function : ComputeEdgeGeometry
256 //=======================================================================
258 void AIS_EllipseRadiusDimension::ComputeEdgeGeometry()
260 gp_Pnt ptfirst,ptend;
261 Handle(Geom_Curve) curv;
262 if (!AIS::ComputeGeometry(TopoDS::Edge(myFShape),curv,ptfirst,ptend)) return;
264 Handle(Geom_Ellipse) elips = Handle(Geom_Ellipse)::DownCast(curv);
265 if ( elips.IsNull()) return;
267 myEllipse = elips->Elips();
269 aPlane.SetPosition(gp_Ax3(myEllipse.Position()));
270 myPlane = new Geom_Plane(aPlane);
273 if ( ptfirst.IsEqual(ptend, Precision::Confusion()) ) {
274 myIsAnArc = Standard_False;
277 myIsAnArc = Standard_True;
278 myFirstPar = ElCLib::Parameter(myEllipse, ptfirst);
279 myLastPar = ElCLib::Parameter(myEllipse, ptend);
282 //=======================================================================
283 //function : KindOfDimension
285 //=======================================================================
286 AIS_KindOfDimension AIS_EllipseRadiusDimension::KindOfDimension() const
288 return AIS_KOD_ELLIPSERADIUS;
291 //=======================================================================
292 //function : IsMovable
294 //=======================================================================
295 Standard_Boolean AIS_EllipseRadiusDimension::IsMovable() const
297 return Standard_True;