1 // Copyright (C) 2013 CEA/DEN, EDF R&D, OPEN CASCADE
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include "CurveCreator_Utils.h"
22 #include <GEOMUtils.hxx>
27 #include <TopoDS_Vertex.hxx>
28 #include <TopoDS_Wire.hxx>
29 #include <TopoDS_Edge.hxx>
31 #include <AIS_ListOfInteractive.hxx>
32 #include <AIS_ListIteratorOfListOfInteractive.hxx>
33 #include <AIS_Shape.hxx>
34 #include <AIS_Point.hxx>
35 #include <AIS_Line.hxx>
36 #include <AIS_Trihedron.hxx>
38 #include <Geom_Point.hxx>
39 #include <Geom_BSplineCurve.hxx>
40 #include <Geom_Line.hxx>
42 #include <TopExp_Explorer.hxx>
43 #include <BRep_Tool.hxx>
44 #include <GeomAPI_ProjectPointOnCurve.hxx>
45 #include <SelectMgr_EntityOwner.hxx>
47 #include <ProjLib.hxx>
50 const double LOCAL_SELECTION_TOLERANCE = 0.0001;
51 const int SCENE_PIXEL_TOLERANCE = 10;
53 //=======================================================================
54 // function : ConvertClickToPoint()
55 // purpose : Returns the point clicked in 3D view
56 //=======================================================================
57 void CurveCreator_Utils::ConvertPointToClick( const gp_Pnt& thePoint,
58 Handle(V3d_View) theView,
61 theView->Convert(thePoint.X(), thePoint.Y(), thePoint.Z(), x, y );
65 //=======================================================================
66 // function : ConvertClickToPoint()
67 // purpose : Returns the point clicked in 3D view
68 //=======================================================================
69 gp_Pnt CurveCreator_Utils::ConvertClickToPoint( int x, int y, Handle(V3d_View) aView )
71 return GEOMUtils::ConvertClickToPoint( x, y, aView );
74 //=======================================================================
75 // function : setLocalPointContext
76 // purpose : Open/close the viewer local context
77 //=======================================================================
78 void CurveCreator_Utils::setLocalPointContext(
79 Handle(AIS_InteractiveContext) theContext,
86 // Open local context if there is no one
87 if ( !theContext->HasOpenedContext() ) {
88 theContext->ClearCurrents( false );
89 theContext->OpenLocalContext( false/*use displayed objects*/, true/*allow shape decomposition*/ );
91 AIS_ListOfInteractive aList;
92 theContext->DisplayedObjects( aList );
94 for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
97 for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
99 Handle(AIS_InteractiveObject) anAIS = it.Value();
100 if ( !anAIS.IsNull() )
102 if ( anAIS->IsKind( STANDARD_TYPE( AIS_Shape ) ) )
104 theContext->Load( anAIS, -1/*selection mode*/, true/*allow decomposition*/ );
105 theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_WIRE ) );
106 //theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_VERTEX ) );
108 else if ( anAIS->DynamicType() != STANDARD_TYPE(AIS_Trihedron) )
110 theContext->Load( anAIS, -1/*selection mode*/, false/*allow decomposition*/ );
111 theContext->Activate( anAIS, TopAbs_VERTEX );
118 if ( theContext->HasOpenedContext() )
119 theContext->CloseAllContexts();
123 bool CurveCreator_Utils::getNeighbourPoints( Handle(AIS_InteractiveContext) theContext,
124 Handle(V3d_View) theView,
125 const int theX, const int theY,
126 gp_Pnt& thePoint, gp_Pnt& thePoint1,
129 bool isFoundPoint = false;
130 if ( theContext.IsNull() )
133 for ( theContext->InitSelected(); theContext->MoreSelected() && !isFoundPoint;
134 theContext->NextSelected() ) {
135 TopoDS_Shape aTShape = theContext->SelectedShape();
136 if ( !aTShape.IsNull() && aTShape.ShapeType() == TopAbs_VERTEX )
139 Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
140 if ( anOwner.IsNull() )
142 const TopLoc_Location& aLocation = anOwner->Location();
143 Handle(AIS_InteractiveObject) anAIS =
144 Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
145 isFoundPoint = CurveCreator_Utils::pointOnObject( theView, anAIS, theX, theY, thePoint,
146 thePoint1, thePoint2 );
152 bool CurveCreator_Utils::pointOnObject( Handle(V3d_View) theView,
153 Handle(AIS_InteractiveObject) theObject,
154 const int theX, const int theY,
156 gp_Pnt& thePoint1, gp_Pnt& thePoint2 )
158 bool isFound = false;
160 if ( theObject.IsNull() || theView.IsNull() )
164 Standard_Real aParameter;
166 Handle(AIS_Line) aLine = Handle(AIS_Line)::DownCast( theObject );
167 if ( !aLine.IsNull() ) {
168 const Handle(Geom_Line) aGLine = aLine->Line();
169 isFound = hasProjectPointOnCurve( theView, theX, theY, aGLine, aParameter );
171 aPoint = aGLine->Value( aParameter );
173 Handle(Geom_Point) aPStart;
174 Handle(Geom_Point) aPEnd;
175 aLine->Points( aPStart, aPEnd );
176 aPnt1 = aPStart->Pnt();
177 aPnt2 = aPEnd->Pnt();
179 // in case of Geom line a projection is performed to the infinite line,
180 // so it is necessary to bound it by the line size
182 aLineBox.Set( aPnt1, gp_Vec( aPnt1, aPnt2 ) );
183 isFound = !aLineBox.IsOut( aPoint );
187 Handle(AIS_Shape) aShape = Handle(AIS_Shape)::DownCast( theObject );
188 if ( !aShape.IsNull() ) {
189 const TopoDS_Wire& aWire = TopoDS::Wire( aShape->Shape() );
190 if ( !aWire.IsNull() ) {
191 TopExp_Explorer anExp( aWire, TopAbs_EDGE );
192 for ( ; anExp.More(); anExp.Next())
194 const TopoDS_Edge& anEdge = TopoDS::Edge(anExp.Current());
195 if ( !anEdge.IsNull() ) {
196 Standard_Real aFirst, aLast;
197 Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aFirst, aLast );
199 if ( aCurve->IsKind( STANDARD_TYPE(Geom_BSplineCurve) ) ) {
200 Handle(Geom_BSplineCurve) aBSplineCurve = Handle(Geom_BSplineCurve)::DownCast( aCurve );
201 if ( !aBSplineCurve.IsNull() ) {
202 isFound = hasProjectPointOnCurve( theView, theX, theY, aCurve, aParameter );
204 aPoint = aBSplineCurve->Value( aParameter );
205 Standard_Integer anI1, anI2;
206 aBSplineCurve->LocateU( aParameter, LOCAL_SELECTION_TOLERANCE, anI1, anI2 );
208 aPnt1 = aBSplineCurve->Value( aBSplineCurve->Knot( anI1 ) );
209 aPnt2 = aBSplineCurve->Value( aBSplineCurve->Knot( anI2 ) );
226 bool CurveCreator_Utils::hasProjectPointOnCurve( Handle(V3d_View) theView,
227 const int theX, const int theY,
228 const Handle(Geom_Curve)& theCurve,
229 Standard_Real& theParameter )
231 bool isFound = false;
232 if ( theView.IsNull() )
235 gp_Pnt aPoint = CurveCreator_Utils::ConvertClickToPoint( theX, theY, theView );
237 GeomAPI_ProjectPointOnCurve aProj( aPoint, theCurve );
238 Standard_Integer aNbPoint = aProj.NbPoints();
240 for (Standard_Integer j = 1; j <= aNbPoint && !isFound; j++) {
241 gp_Pnt aNewPoint = aProj.Point( j );
242 theParameter = aProj.Parameter( j );
245 CurveCreator_Utils::ConvertPointToClick( aNewPoint, theView, aX, anY );
247 int aXDelta = abs( aX - theX );
248 int anYDelta = abs( anY - theY );
249 isFound = aXDelta < SCENE_PIXEL_TOLERANCE && anYDelta < SCENE_PIXEL_TOLERANCE;