1 // Created on: 1996-12-05
2 // Created by: Jean-Pierre COMBE/Odile Olivier/Serguei Zaritchny
3 // Copyright (c) 1996-1999 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_RadiusDimension.hxx>
20 #include <BRepLib_MakeEdge.hxx>
22 #include <gce_MakeDir.hxx>
25 IMPLEMENT_STANDARD_RTTIEXT(AIS_RadiusDimension,AIS_Dimension)
29 static const Standard_ExtCharacter THE_RADIUS_SYMBOL ('R');
32 //=======================================================================
33 //function : Constructor
35 //=======================================================================
36 AIS_RadiusDimension::AIS_RadiusDimension (const gp_Circ& theCircle)
37 : AIS_Dimension (AIS_KOD_RADIUS)
39 SetMeasuredGeometry (theCircle);
40 SetSpecialSymbol (THE_RADIUS_SYMBOL);
41 SetDisplaySpecialSymbol (AIS_DSS_Before);
45 //=======================================================================
46 //function : Constructor
48 //=======================================================================
49 AIS_RadiusDimension::AIS_RadiusDimension (const gp_Circ& theCircle,
50 const gp_Pnt& theAttachPoint)
51 : AIS_Dimension (AIS_KOD_RADIUS)
53 SetMeasuredGeometry (theCircle, theAttachPoint);
54 SetSpecialSymbol (THE_RADIUS_SYMBOL);
55 SetDisplaySpecialSymbol (AIS_DSS_Before);
59 //=======================================================================
60 //function : Constructor
62 //=======================================================================
63 AIS_RadiusDimension::AIS_RadiusDimension (const TopoDS_Shape& theShape)
64 : AIS_Dimension (AIS_KOD_RADIUS)
66 SetMeasuredGeometry (theShape);
67 SetSpecialSymbol (THE_RADIUS_SYMBOL);
68 SetDisplaySpecialSymbol (AIS_DSS_Before);
72 //=======================================================================
73 //function : SetMeasuredGeometry
75 //=======================================================================
76 void AIS_RadiusDimension::SetMeasuredGeometry (const gp_Circ& theCircle,
77 const gp_Pnt& theAnchorPoint,
78 const Standard_Boolean theHasAnchor)
81 myGeometryType = GeometryType_Edge;
82 myShape = BRepLib_MakeEdge (theCircle);
83 myAnchorPoint = theHasAnchor ? theAnchorPoint : ElCLib::Value (0, myCircle);
84 myIsGeometryValid = IsValidCircle (myCircle) && IsValidAnchor (myCircle, myAnchorPoint);
86 if (myIsGeometryValid)
94 //=======================================================================
95 //function : SetMeasuredGeometry
97 //=======================================================================
98 void AIS_RadiusDimension::SetMeasuredGeometry (const TopoDS_Shape& theShape,
99 const gp_Pnt& theAnchorPoint,
100 const Standard_Boolean theHasAnchor)
102 Standard_Boolean isClosed = Standard_False;
104 myGeometryType = GeometryType_UndefShapes;
105 myIsGeometryValid = InitCircularDimension (theShape, myCircle, myAnchorPoint, isClosed)
106 && IsValidCircle (myCircle);
109 myAnchorPoint = theAnchorPoint;
110 myIsGeometryValid = myIsGeometryValid && IsValidAnchor (myCircle, myAnchorPoint);
113 if (myIsGeometryValid)
121 //=======================================================================
122 //function : CheckPlane
124 //=======================================================================
125 Standard_Boolean AIS_RadiusDimension::CheckPlane (const gp_Pln& thePlane) const
127 // Check if anchor point and circle center point belong to plane.
128 if (!thePlane.Contains (myAnchorPoint, Precision::Confusion()) &&
129 !thePlane.Contains (myCircle.Location(), Precision::Confusion()))
131 return Standard_False;
134 return Standard_True;
137 //=======================================================================
138 //function : ComputePlane
140 //=======================================================================
141 void AIS_RadiusDimension::ComputePlane()
143 if (!myIsGeometryValid)
148 gp_Dir aDimensionX = gce_MakeDir (myAnchorPoint, myCircle.Location());
150 myPlane = gp_Pln (gp_Ax3 (myCircle.Location(),
151 myCircle.Axis().Direction(),
155 //=======================================================================
156 //function : GetModelUnits
158 //=======================================================================
159 const TCollection_AsciiString& AIS_RadiusDimension::GetModelUnits() const
161 return myDrawer->DimLengthModelUnits();
164 //=======================================================================
165 //function : GetDisplayUnits
167 //=======================================================================
168 const TCollection_AsciiString& AIS_RadiusDimension::GetDisplayUnits() const
170 return myDrawer->DimLengthDisplayUnits();
173 //=======================================================================
174 //function : SetModelUnits
176 //=======================================================================
177 void AIS_RadiusDimension::SetModelUnits (const TCollection_AsciiString& theUnits)
179 myDrawer->SetDimLengthModelUnits (theUnits);
182 //=======================================================================
183 //function : SetDisplayUnits
185 //=======================================================================
186 void AIS_RadiusDimension::SetDisplayUnits (const TCollection_AsciiString& theUnits)
188 myDrawer->SetDimLengthDisplayUnits(theUnits);
191 //=======================================================================
192 //function : ComputeValue
194 //=======================================================================
195 Standard_Real AIS_RadiusDimension::ComputeValue() const
202 return myCircle.Radius();
205 //=======================================================================
208 //=======================================================================
209 void AIS_RadiusDimension::Compute (const Handle(PrsMgr_PresentationManager3d)& /*thePM*/,
210 const Handle(Prs3d_Presentation)& thePresentation,
211 const Standard_Integer theMode)
213 mySelectionGeom.Clear (theMode);
220 DrawLinearDimension (thePresentation, theMode, myAnchorPoint, myCircle.Location(), Standard_True);
223 //=======================================================================
224 //function : IsValidCircle
226 //=======================================================================
227 Standard_Boolean AIS_RadiusDimension::IsValidCircle (const gp_Circ& theCircle) const
229 return theCircle.Radius() > Precision::Confusion();
232 //=======================================================================
233 //function : IsValidAnchor
235 //=======================================================================
236 Standard_Boolean AIS_RadiusDimension::IsValidAnchor (const gp_Circ& theCircle,
237 const gp_Pnt& theAnchor) const
239 gp_Pln aCirclePlane (theCircle.Location(), theCircle.Axis().Direction());
240 Standard_Real anAnchorDist = theAnchor.Distance (theCircle.Location());
241 Standard_Real aRadius = myCircle.Radius();
243 return Abs (anAnchorDist - aRadius) <= Precision::Confusion()
244 && aCirclePlane.Contains (theAnchor, Precision::Confusion());
247 //=======================================================================
248 //function : GetTextPosition
250 //=======================================================================
251 const gp_Pnt AIS_RadiusDimension::GetTextPosition() const
253 if (IsTextPositionCustom())
255 return myFixedTextPosition;
258 // Counts text position according to the dimension parameters
259 return GetTextPositionForLinear (myAnchorPoint, myCircle.Location(), Standard_True);
262 //=======================================================================
263 //function : GetTextPosition
265 //=======================================================================
266 void AIS_RadiusDimension::SetTextPosition (const gp_Pnt& theTextPos)
268 if (!myIsGeometryValid)
273 myIsTextPositionFixed = Standard_True;
274 myFixedTextPosition = theTextPos;