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 std::list<float> CurveCreator_Utils::getSelectedPoints( Handle(AIS_InteractiveContext) theContext )
76 std::list<float> aSelectedPoints;
79 for ( theContext->InitSelected(); theContext->MoreSelected(); theContext->NextSelected() ) {
80 TopoDS_Vertex aVertex;
81 TopoDS_Shape aShape = theContext->SelectedShape();
82 if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
83 aVertex = TopoDS::Vertex( theContext->SelectedShape() );
85 Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
86 if ( !anOwner.IsNull() ) {
87 Handle(AIS_InteractiveObject) anAIS = Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
88 if ( !anAIS.IsNull() ) {
89 Handle(AIS_Point) aPoint = Handle(AIS_Point)::DownCast( anAIS);
90 if ( !aPoint.IsNull() )
91 aVertex = TopoDS::Vertex( aPoint->Vertex() );
93 if ( aVertex.IsNull() ) {
94 // the following happens if there are no points in the current curve, there is only a shape
95 /*Handle(StdSelect_BRepOwner) aBrepOwner = Handle(StdSelect_BRepOwner)::DownCast(anOwner);
96 if ( aBrepOwner.IsNull() )
98 if ( aBrepOwner->HasShape() ) {
99 const TopoDS_Shape& aShape = aBrepOwner->Shape();
100 if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
102 aVertex = TopoDS::Vertex( aShape );
108 if ( aVertex.IsNull() )
110 aPnt = BRep_Tool::Pnt( aVertex );
111 aSelectedPoints.push_back( aPnt.X() );
112 aSelectedPoints.push_back( aPnt.Y() );
113 aSelectedPoints.push_back( aPnt.Z() );
116 return aSelectedPoints;
118 //=======================================================================
119 // function : setLocalPointContext
120 // purpose : Open/close the viewer local context
121 //=======================================================================
122 //#define USE_COMPOUND
123 void CurveCreator_Utils::setLocalPointContext(
124 Handle(AIS_InteractiveContext) theContext,
134 // Open local context if there is no one
135 if ( !theContext->HasOpenedContext() ) {
136 theContext->ClearCurrents( false );
137 theContext->OpenLocalContext( false/*use displayed objects*/, true/*allow shape decomposition*/ );
139 AIS_ListOfInteractive aList;
140 theContext->DisplayedObjects( aList );
142 for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
145 for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
147 Handle(AIS_InteractiveObject) anAIS = it.Value();
148 if ( !anAIS.IsNull() )
150 if ( anAIS->IsKind( STANDARD_TYPE( AIS_Shape ) ) )
152 theContext->Load( anAIS, -1/*selection mode*/, true/*allow decomposition*/ );
153 //theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_WIRE ) );
154 theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_VERTEX ) );
156 else if ( anAIS->DynamicType() != STANDARD_TYPE(AIS_Trihedron) )
158 theContext->Load( anAIS, -1/*selection mode*/, false/*allow decomposition*/ );
159 theContext->Activate( anAIS, TopAbs_VERTEX );
166 if ( theContext->HasOpenedContext() )
167 theContext->CloseAllContexts();
171 bool CurveCreator_Utils::getNeighbourPoints( Handle(AIS_InteractiveContext) theContext,
172 Handle(V3d_View) theView,
173 const int theX, const int theY,
174 gp_Pnt& thePoint, gp_Pnt& thePoint1,
177 bool isFoundPoint = false;
178 if ( theContext.IsNull() )
181 for ( theContext->InitSelected(); theContext->MoreSelected() && !isFoundPoint;
182 theContext->NextSelected() ) {
183 TopoDS_Shape aTShape = theContext->SelectedShape();
184 if ( !aTShape.IsNull() && aTShape.ShapeType() == TopAbs_VERTEX )
187 Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
188 if ( anOwner.IsNull() )
190 const TopLoc_Location& aLocation = anOwner->Location();
191 Handle(AIS_InteractiveObject) anAIS =
192 Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
193 isFoundPoint = CurveCreator_Utils::pointOnObject( theView, anAIS, theX, theY, thePoint,
194 thePoint1, thePoint2 );
200 bool CurveCreator_Utils::pointOnObject( Handle(V3d_View) theView,
201 Handle(AIS_InteractiveObject) theObject,
202 const int theX, const int theY,
204 gp_Pnt& thePoint1, gp_Pnt& thePoint2 )
206 bool isFound = false;
208 if ( theObject.IsNull() || theView.IsNull() )
212 Standard_Real aParameter;
214 Handle(AIS_Line) aLine = Handle(AIS_Line)::DownCast( theObject );
215 if ( !aLine.IsNull() ) {
216 const Handle(Geom_Line) aGLine = aLine->Line();
217 isFound = hasProjectPointOnCurve( theView, theX, theY, aGLine, aParameter );
219 aPoint = aGLine->Value( aParameter );
221 Handle(Geom_Point) aPStart;
222 Handle(Geom_Point) aPEnd;
223 aLine->Points( aPStart, aPEnd );
224 aPnt1 = aPStart->Pnt();
225 aPnt2 = aPEnd->Pnt();
227 // in case of Geom line a projection is performed to the infinite line,
228 // so it is necessary to bound it by the line size
230 aLineBox.Set( aPnt1, gp_Vec( aPnt1, aPnt2 ) );
231 isFound = !aLineBox.IsOut( aPoint );
235 Handle(AIS_Shape) aShape = Handle(AIS_Shape)::DownCast( theObject );
236 if ( !aShape.IsNull() ) {
237 const TopoDS_Wire& aWire = TopoDS::Wire( aShape->Shape() );
238 if ( !aWire.IsNull() ) {
239 TopExp_Explorer anExp( aWire, TopAbs_EDGE );
240 for ( ; anExp.More(); anExp.Next())
242 const TopoDS_Edge& anEdge = TopoDS::Edge(anExp.Current());
243 if ( !anEdge.IsNull() ) {
244 Standard_Real aFirst, aLast;
245 Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aFirst, aLast );
247 if ( aCurve->IsKind( STANDARD_TYPE(Geom_BSplineCurve) ) ) {
248 Handle(Geom_BSplineCurve) aBSplineCurve = Handle(Geom_BSplineCurve)::DownCast( aCurve );
249 if ( !aBSplineCurve.IsNull() ) {
250 isFound = hasProjectPointOnCurve( theView, theX, theY, aCurve, aParameter );
252 aPoint = aBSplineCurve->Value( aParameter );
253 Standard_Integer anI1, anI2;
254 aBSplineCurve->LocateU( aParameter, LOCAL_SELECTION_TOLERANCE, anI1, anI2 );
256 aPnt1 = aBSplineCurve->Value( aBSplineCurve->Knot( anI1 ) );
257 aPnt2 = aBSplineCurve->Value( aBSplineCurve->Knot( anI2 ) );
274 bool CurveCreator_Utils::hasProjectPointOnCurve( Handle(V3d_View) theView,
275 const int theX, const int theY,
276 const Handle(Geom_Curve)& theCurve,
277 Standard_Real& theParameter )
279 bool isFound = false;
280 if ( theView.IsNull() )
283 gp_Pnt aPoint = CurveCreator_Utils::ConvertClickToPoint( theX, theY, theView );
285 GeomAPI_ProjectPointOnCurve aProj( aPoint, theCurve );
286 Standard_Integer aNbPoint = aProj.NbPoints();
288 for (Standard_Integer j = 1; j <= aNbPoint && !isFound; j++) {
289 gp_Pnt aNewPoint = aProj.Point( j );
290 theParameter = aProj.Parameter( j );
293 CurveCreator_Utils::ConvertPointToClick( aNewPoint, theView, aX, anY );
295 int aXDelta = abs( aX - theX );
296 int anYDelta = abs( anY - theY );
297 isFound = aXDelta < SCENE_PIXEL_TOLERANCE && anYDelta < SCENE_PIXEL_TOLERANCE;