#include <AIS_ListOfInteractive.hxx>
#include <AIS_ListIteratorOfListOfInteractive.hxx>
#include <AIS_Shape.hxx>
-#include <AIS_Point.hxx>
#include <AIS_Line.hxx>
#include <AIS_Trihedron.hxx>
+#include <AIS_LocalContext.hxx>
#include <Geom_Point.hxx>
#include <Geom_BSplineCurve.hxx>
#include <Geom_Line.hxx>
+#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <GeomAPI_ProjectPointOnCurve.hxx>
#include <SelectMgr_EntityOwner.hxx>
+#include <SelectMgr_Selection.hxx>
+#include <Select3D_SensitivePoint.hxx>
#include <BRep_Tool.hxx>
#include <BRep_Builder.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <TColgp_HArray1OfPnt.hxx>
+#include <TColStd_HArray1OfBoolean.hxx>
+#include <TColgp_Array1OfVec.hxx>
#include <GeomAPI_Interpolate.hxx>
#include <ProjLib.hxx>
#include <ElSLib.hxx>
+#include <math.h>
+
#include "CurveCreator_ICurve.hxx"
const double LOCAL_SELECTION_TOLERANCE = 0.0001;
-const int SCENE_PIXEL_TOLERANCE = 10;
+const int SCENE_PIXEL_PROJECTION_TOLERANCE = 10;
+const int SCENE_PIXEL_POINT_TOLERANCE = 5;
//=======================================================================
// function : ConvertClickToPoint()
//=======================================================================
gp_Pnt CurveCreator_Utils::ConvertClickToPoint( int x, int y, Handle(V3d_View) aView )
{
- return GEOMUtils::ConvertClickToPoint( x, y, aView );
-}
-
-
-//#define USE_COMPOUND
-#include "CurveCreator_Curve.hxx" // TODO - remove
-void CurveCreator_Utils::constructShape( const CurveCreator_ICurve* theCurve,
- const int theISection, TopoDS_Shape& theShape,
- std::vector<Handle_AIS_InteractiveObject>& aSectionRepresentation )
-{
- CurveCreator::SectionType aSectType = theCurve->getSectionType( theISection );
-
-
- int aPointSize = theCurve->getNbPoints( theISection );
- bool aSectIsClosed = theCurve->isClosed( theISection );
- if( aSectType == CurveCreator::Polyline )
- {
-#ifdef USE_COMPOUND
- BRep_Builder aBuilder;
- TopoDS_Compound aComp;
- aBuilder.MakeCompound(aComp);
-
- int iPoint = 0;
- gp_Pnt aPrevPoint, aPoint;
- if ( aPointSize == 1 ) {
- CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPrevPoint );
- TopoDS_Vertex aVertex = BRepBuilderAPI_MakeVertex( aPrevPoint ).Vertex();
- aBuilder.Add( aComp, aVertex );
- }
- else if ( aPointSize > 1 ) {
- TopoDS_Edge aPointEdge;
- TopoDS_Vertex aVertex;
- CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPrevPoint );
- aVertex = BRepBuilderAPI_MakeVertex( aPrevPoint ).Vertex();
- aBuilder.Add( aComp, aVertex );
- iPoint++;
- for( ; iPoint < aPointSize; iPoint++ ) {
- CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
- aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
- aBuilder.Add( aComp, aVertex );
- aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
- aBuilder.Add( aComp, aPointEdge );
- aPrevPoint = aPoint;
- }
- if( aSectIsClosed && ( aPointSize > 2 ) ) {
- CurveCreator_UtilsICurve::getPoint( theCurve, theISection, 0, aPoint );
- aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
- aBuilder.Add( aComp, aVertex );
- aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
- aBuilder.Add( aComp, aPointEdge );
- }
- theShape = aComp;
- }
-#endif
+ // the 3D point, that is a projection of the pixels to the XYZ view plane
+ //return GEOMUtils::ConvertClickToPoint( x, y, aView );
+
+ // we need the projection to the XOY plane
+ // 1. find a point in the plane of the eye and the normal to the plane
+ Standard_Real X, Y, Z;
+ Quantity_Parameter Vx, Vy, Vz;
+ aView->ConvertWithProj( x, y, X, Y, Z, Vx, Vy, Vz );
+
+ // 2. build a ray from the point by the normal to the XOY plane and intersect it
+ // The ray equation is the following : p(x,y,z) = p0(x,y,z) + t*V(x,y,z)
+ // X,Y,Z - defines p0(x,y,z), Vx,Vy,Vz - defines V(x,y,z)
+ // p(x,y,z) - is a searched point, t - should to be calculated by the condition of XOY plane
+ // The system of equations is the following:
+ // p(x) = p0(x)+t*V(x)
+ // p(y) = p0(y)+t*V(y)
+ // p(z) = p0(z)+t*V(z)
+ // p(z) = 0
+
+ Standard_Real aXp, aYp, aZp;
+ //It is not possible to use Precision::Confusion(), because it is e-0.8, but V is sometimes e-6
+ Standard_Real aPrec = LOCAL_SELECTION_TOLERANCE;
+ if ( fabs( Vz ) > aPrec ) {
+ Standard_Real aT = -Z/Vz;
+ aXp = X + aT*Vx;
+ aYp = Y + aT*Vy;
+ aZp = Z + aT*Vz;
}
- else if( aSectType == CurveCreator::Spline )
- {
- std::vector<double> aPoints;
- for( int iPoint = 0; iPoint < aPointSize; iPoint++ )
- {
- CurveCreator::Coordinates aCoords = theCurve->getPoint( theISection, iPoint );
- double aX = aCoords[0];
- double aY = aCoords[1];
- double aZ = aCoords[2];
- aPoints.push_back( aX );
- aPoints.push_back( aY );
- }
-
- if( aPointSize > 1 )
- {
- Handle(Geom_BSplineCurve) aBSplineCurve;
- // fill array for algorithm by the received coordinates
- int aLen = aPoints.size() / 2;
- Handle(TColgp_HArray1OfPnt) aHCurvePoints = new TColgp_HArray1OfPnt (1, aLen);
- std::vector<double>::const_iterator aListIter = aPoints.begin();
- for (int ind = 1; ind <= aLen; ind++) {
- gp_Pnt aPnt(gp::Origin());
- aPnt.SetX(*aListIter);
- aListIter++;
- aPnt.SetY(*aListIter);
- aListIter++;
- aPnt.SetZ(0);
- aHCurvePoints->SetValue(ind, aPnt);
- }
- // compute BSpline
- GeomAPI_Interpolate aGBC(aHCurvePoints, aSectIsClosed, gp::Resolution());
- aGBC.Perform();
- if (aGBC.IsDone()) {
- aBSplineCurve = aGBC.Curve();
- }
- TopoDS_Edge anEdge = BRepBuilderAPI_MakeEdge( aBSplineCurve ).Edge();
-
- TopoDS_Wire aWire = BRepBuilderAPI_MakeWire( anEdge ).Wire();
- theShape = aWire;
- }
+ else { // Vz = 0 - the eyed plane is orthogonal to Z plane - XOZ, or YOZ
+ aXp = aYp = aZp = 0;
+ if ( fabs( Vy ) < aPrec ) // Vy = 0 - the YOZ plane
+ aYp = Y;
+ else if ( fabs( Vx ) < aPrec ) // Vx = 0 - the XOZ plane
+ aXp = X;
}
+ /*std::cout << "ConvertClickToPoint: " << std::endl
+ << "XYZ1 = (" << X << ", " << Y << ", " << Z << "); " << std::endl
+ << "Vxyz = (" << Vx << ", " << Vy << ", " << Vz << "); " << std::endl
+ << "Resp = (" << aXp << ", " << aYp << ", " << aZp << "); " << std::endl;*/
- const CurveCreator_Curve* aCurve = dynamic_cast<const CurveCreator_Curve*>( theCurve );
- if ( !aCurve )
- return;
-
- if( aSectType == CurveCreator::Polyline )
- {
-#ifndef USE_COMPOUND
- int iPoint = 0;
- for( ; iPoint < ( aPointSize - 1 ) ; iPoint++ ){
- Handle_AIS_Point anAISPnt = aCurve->getAISPoint(theISection, iPoint);
- aSectionRepresentation.push_back( anAISPnt );
- Handle_AIS_Line aLine = aCurve->getAISLine( theISection, iPoint, iPoint+1 );
- aSectionRepresentation.push_back( aLine );
- }
- if( aPointSize != 0 ){
- Handle_AIS_Point anAISPnt = aCurve->getAISPoint(theISection, iPoint);
- aSectionRepresentation.push_back( anAISPnt );
- if( aSectIsClosed && ( aPointSize > 1 ) ){
- Handle_AIS_Line aLine = aCurve->getAISLine( theISection, iPoint, 0 );
- aSectionRepresentation.push_back( aLine );
- }
- }
-#endif
- }
- else if( aSectType == CurveCreator::Spline )
- {
- std::vector<double> aPoints;
- for( int iPoint = 0; iPoint < aPointSize; iPoint++ )
- {
- Handle_AIS_Point anAISPnt = aCurve->getAISPoint( theISection, iPoint );
- aSectionRepresentation.push_back( anAISPnt );
- }
- }
+ gp_Pnt ResultPoint( aXp, aYp, aZp );
+ return ResultPoint;
}
void CurveCreator_Utils::constructShape( const CurveCreator_ICurve* theCurve,
CurveCreator::SectionType aSectType = theCurve->getSectionType( theISection );
int aPointSize = theCurve->getNbPoints( theISection );
+ if ( aPointSize == 0 )
+ continue;
+
bool aSectIsClosed = theCurve->isClosed( theISection );
bool isPolyline = aSectType == CurveCreator::Polyline;
+
int iPoint = 0;
gp_Pnt aPrevPoint, aPoint;
- if ( aPointSize == 1 ) {
+ // filters the curve points to skip equal points
+ std::vector<gp_Pnt> aPoints;
+ CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
+ aPoints.push_back( aPoint );
+ aPrevPoint = aPoint;
+ iPoint++;
+ for( ; iPoint < aPointSize; iPoint++ ) {
CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
+ if ( !isEqualPoints( aPrevPoint, aPoint ) )
+ aPoints.push_back( aPoint );
+ aPrevPoint = aPoint;
+ }
+ int aNbPoints = aPoints.size();
+
+ if ( aNbPoints == 1 ) {
+ aPoint = aPoints.front();
TopoDS_Vertex aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
aBuilder.Add( aComp, aVertex );
}
- else if ( aPointSize > 1 ) {
- Handle(TColgp_HArray1OfPnt) aHCurvePoints = new TColgp_HArray1OfPnt (1, aPointSize);
- int aHIndex = 1;
+ else if ( aNbPoints > 1 ) {
+ Handle(TColgp_HArray1OfPnt) aHCurvePoints = new TColgp_HArray1OfPnt(1, aNbPoints);
+ TColgp_Array1OfVec aTangents(1, aNbPoints);
+ Handle(TColStd_HArray1OfBoolean) aTangentFlags = new TColStd_HArray1OfBoolean(1, aNbPoints);
+ gp_Vec aNullVec(0, 0, 0);
TopoDS_Edge aPointEdge;
TopoDS_Vertex aVertex;
- CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
+
+ std::vector<gp_Pnt>::const_iterator aPointIt = aPoints.begin(), aPointLast = aPoints.end();
+ aPoint = *aPointIt;
+
+ int aHIndex = 1;
aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
aBuilder.Add( aComp, aVertex );
- aHCurvePoints->SetValue(aHIndex++, aPoint);
+ if ( !isPolyline ) {
+ aHCurvePoints->SetValue( aHIndex, aPoint );
+ aTangents.SetValue( aHIndex, aNullVec );
+ aTangentFlags->SetValue( aHIndex, Standard_False );
+ aHIndex++;
+ }
+
aPrevPoint = aPoint;
- iPoint++;
- for( ; iPoint < aPointSize; iPoint++ ) {
- CurveCreator_UtilsICurve::getPoint( theCurve, theISection, iPoint, aPoint );
+ aPointIt++;
+ for( ; aPointIt != aPointLast; aPointIt++ ) {
+ aPoint = *aPointIt;
aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
aBuilder.Add( aComp, aVertex );
- aHCurvePoints->SetValue(aHIndex++, aPoint);
if ( isPolyline ) {
- aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
+ TopoDS_Edge aPointEdge = BRepBuilderAPI_MakeEdge( aPrevPoint, aPoint ).Edge();
aBuilder.Add( aComp, aPointEdge );
}
+ else {
+ aHCurvePoints->SetValue( aHIndex, aPoint );
+ aTangents.SetValue( aHIndex, aNullVec );
+ aTangentFlags->SetValue( aHIndex, Standard_False );
+ aHIndex++;
+ }
aPrevPoint = aPoint;
}
- if( aSectIsClosed && ( aPointSize > 2 ) ) {
- CurveCreator_UtilsICurve::getPoint( theCurve, theISection, 0, aPoint );
+ if( aSectIsClosed && ( aNbPoints > 2 ) ) {
+ aPoint = aPoints.front();
aVertex = BRepBuilderAPI_MakeVertex( aPoint ).Vertex();
aBuilder.Add( aComp, aVertex );
if ( isPolyline ) {
// compute BSpline
Handle(Geom_BSplineCurve) aBSplineCurve;
GeomAPI_Interpolate aGBC(aHCurvePoints, aSectIsClosed, gp::Resolution());
+ // correct the spline degree to be as 3 for non-periodic spline if number of points
+ // less than 3. It is need to have a knot in each spline point. This knots are used
+ // to found a neighbour points when a new point is inserted between two existing.
+ if (!aSectIsClosed ) {
+ if (aHCurvePoints->Length() == 3)
+ aGBC.Load(aTangents, aTangentFlags);
+ }
+
aGBC.Perform();
if ( aGBC.IsDone() )
aBSplineCurve = aGBC.Curve();
theShape = aComp;
}
+class CompareSectionToPoint
+{
+public:
+ CompareSectionToPoint( const int theISection = -1, const int theIPoint = -1 )
+ : mySectionId( theISection ), myPointId( theIPoint ) {};
+ ~CompareSectionToPoint() {}
+
+ bool operator < ( const CompareSectionToPoint& theOther ) const
+ {
+ bool isLess = mySectionId < theOther.mySectionId;
+ if ( !isLess && mySectionId == theOther.mySectionId )
+ isLess = myPointId < theOther.myPointId;
+ return isLess;
+ }
+
+private:
+ int mySectionId;
+ int myPointId;
+};
-std::list<float> CurveCreator_Utils::getSelectedPoints( Handle(AIS_InteractiveContext) theContext )
+
+void CurveCreator_Utils::getSelectedPoints( Handle(AIS_InteractiveContext) theContext,
+ const CurveCreator_ICurve* theCurve,
+ CurveCreator_ICurve::SectionToPointList& thePoints )
{
- std::list<float> aSelectedPoints;
+ thePoints.clear();
+ std::list<float> aSelectedPoints;
gp_Pnt aPnt;
+ std::map<CompareSectionToPoint, int> aPointsMap;
+
+ CurveCreator_ICurve::SectionToPointList aPoints;
for ( theContext->InitSelected(); theContext->MoreSelected(); theContext->NextSelected() ) {
TopoDS_Vertex aVertex;
TopoDS_Shape aShape = theContext->SelectedShape();
if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
aVertex = TopoDS::Vertex( theContext->SelectedShape() );
- else {
- Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
- if ( !anOwner.IsNull() ) {
- Handle(AIS_InteractiveObject) anAIS = Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
- if ( !anAIS.IsNull() ) {
- Handle(AIS_Point) aPoint = Handle(AIS_Point)::DownCast( anAIS);
- if ( !aPoint.IsNull() )
- aVertex = TopoDS::Vertex( aPoint->Vertex() );
- }
- if ( aVertex.IsNull() ) {
- // the following happens if there are no points in the current curve, there is only a shape
- /*Handle(StdSelect_BRepOwner) aBrepOwner = Handle(StdSelect_BRepOwner)::DownCast(anOwner);
- if ( aBrepOwner.IsNull() )
- continue;
- if ( aBrepOwner->HasShape() ) {
- const TopoDS_Shape& aShape = aBrepOwner->Shape();
- if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
- {
- aVertex = TopoDS::Vertex( aShape );
- }
- }*/
- }
- }
- }
+
if ( aVertex.IsNull() )
continue;
aPnt = BRep_Tool::Pnt( aVertex );
- aSelectedPoints.push_back( aPnt.X() );
- aSelectedPoints.push_back( aPnt.Y() );
- aSelectedPoints.push_back( aPnt.Z() );
+
+ CurveCreator_UtilsICurve::findSectionsToPoints( theCurve, aPnt.X(), aPnt.Y(), aPoints );
+ CurveCreator_ICurve::SectionToPointList::const_iterator anIt = aPoints.begin(),
+ aLast = aPoints.end();
+ CompareSectionToPoint aPoint;
+ for ( ; anIt != aLast; anIt++ ) {
+ aPoint = CompareSectionToPoint( (*anIt).first, (*anIt).second );
+ if ( aPointsMap.find( aPoint ) != aPointsMap.end() )
+ continue;
+ aPointsMap[aPoint] = 0;
+
+ thePoints.push_back( *anIt );
+ }
}
+}
+
+void CurveCreator_Utils::setSelectedPoints( Handle(AIS_InteractiveContext) theContext,
+ const CurveCreator_ICurve* theCurve,
+ const CurveCreator_ICurve::SectionToPointList& thePoints )
+{
+ if ( !theCurve )
+ return;
+
+ Handle(AIS_InteractiveObject) anAIS = theCurve->getAISObject();
+ if ( anAIS.IsNull() )
+ return;
+ Handle(AIS_Shape) anAISShape = Handle(AIS_Shape)::DownCast( anAIS );
+ if ( anAISShape.IsNull() )
+ return;
- return aSelectedPoints;
+ //ASL: we convert list of point indices to list of points coordinates
+ int aSize = thePoints.size();
+ std::vector<gp_Pnt> aPntsToSelect( aSize );
+
+ CurveCreator_ICurve::SectionToPointList::const_iterator
+ aPIt = thePoints.begin(), aPLast = thePoints.end();
+ CurveCreator_ICurve::SectionToPoint aSToPoint;
+ for( int i=0; aPIt != aPLast; aPIt++, i++ )
+ {
+ gp_Pnt aPntToSelect;
+ CurveCreator_UtilsICurve::getPoint( theCurve, aPIt->first, aPIt->second, aPntToSelect );
+ aPntsToSelect[i] = aPntToSelect;
+ }
+
+ theContext->ClearSelected( Standard_False );
+ //ASL: we switch off automatic highlight to improve performance of selection
+ theContext->SetAutomaticHilight( Standard_False );
+
+ Handle_SelectMgr_Selection aSelection = anAISShape->Selection( AIS_Shape::SelectionMode( TopAbs_VERTEX ) );
+ for( aSelection->Init(); aSelection->More(); aSelection->Next() )
+ {
+ Handle_SelectBasics_SensitiveEntity aSenEntity = aSelection->Sensitive();
+ Handle_Select3D_SensitivePoint aSenPnt = Handle_Select3D_SensitivePoint::DownCast( aSenEntity );
+
+ gp_Pnt anOwnerPnt = aSenPnt->Point();
+ Handle_SelectMgr_EntityOwner anOwner = Handle_SelectMgr_EntityOwner::DownCast( aSenPnt->OwnerId() );
+
+
+ CurveCreator_ICurve::SectionToPointList::const_iterator anIt = thePoints.begin(),
+ aLast = thePoints.end();
+ bool isFound = false;
+ for( int i=0; i<aSize; i++ )
+ {
+ bool isIntersect = fabs( aPntsToSelect[i].X() - anOwnerPnt.X() ) < LOCAL_SELECTION_TOLERANCE &&
+ fabs( aPntsToSelect[i].Y() - anOwnerPnt.Y() ) < LOCAL_SELECTION_TOLERANCE;
+ if( isIntersect )
+ {
+ theContext->AddOrRemoveSelected( anOwner, Standard_False );
+ break;
+ }
+ }
+ }
+
+ //ASL: we switch on again automatic highlight (otherwise selection will not be shown)
+ // and call HilightPicked to draw selected owners
+ theContext->SetAutomaticHilight( Standard_True );
+ theContext->LocalContext()->HilightPicked( Standard_True );
}
+
//=======================================================================
// function : setLocalPointContext
// purpose : Open/close the viewer local context
//=======================================================================
-//#define USE_GLOBAL_SELECTION
-void CurveCreator_Utils::setLocalPointContext(
- Handle(AIS_InteractiveContext) theContext,
- const bool theOpen )
+void CurveCreator_Utils::setLocalPointContext( const CurveCreator_ICurve* theCurve,
+ Handle(AIS_InteractiveContext) theContext,
+ const bool theOpen )
{
-#ifdef USE_GLOBAL_SELECTION
- return;
-#endif
if ( !theContext )
return;
theContext->ClearCurrents( false );
theContext->OpenLocalContext( false/*use displayed objects*/, true/*allow shape decomposition*/ );
}
- AIS_ListOfInteractive aList;
- theContext->DisplayedObjects( aList );
- int aLSize = 0;
- for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
- aLSize++;
-
- for ( AIS_ListIteratorOfListOfInteractive it( aList ); it.More(); it.Next() )
+ // load the curve AIS object to the local context with the point selection
+ Handle(AIS_InteractiveObject) anAIS = theCurve->getAISObject();
+ if ( !anAIS.IsNull() )
{
- Handle(AIS_InteractiveObject) anAIS = it.Value();
- if ( !anAIS.IsNull() )
+ if ( anAIS->IsKind( STANDARD_TYPE( AIS_Shape ) ) )
{
- if ( anAIS->IsKind( STANDARD_TYPE( AIS_Shape ) ) )
- {
- theContext->Load( anAIS, -1/*selection mode*/, true/*allow decomposition*/ );
- //theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_WIRE ) );
- theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_VERTEX ) );
- }
- else if ( anAIS->DynamicType() != STANDARD_TYPE(AIS_Trihedron) )
- {
- theContext->Load( anAIS, -1/*selection mode*/, false/*allow decomposition*/ );
- theContext->Activate( anAIS, TopAbs_VERTEX );
- }
+ theContext->Load( anAIS, -1/*selection mode*/, true/*allow decomposition*/ );
+ theContext->Activate( anAIS, AIS_Shape::SelectionMode( (TopAbs_ShapeEnum)TopAbs_VERTEX ) );
}
- continue;
}
}
else {
}
}
-bool CurveCreator_Utils::getNeighbourPoints( Handle(AIS_InteractiveContext) theContext,
- Handle(V3d_View) theView,
- const int theX, const int theY,
- gp_Pnt& thePoint, gp_Pnt& thePoint1,
- gp_Pnt& thePoint2 )
-{
- bool isFoundPoint = false;
- if ( theContext.IsNull() )
- return isFoundPoint;
-
- for ( theContext->InitSelected(); theContext->MoreSelected() && !isFoundPoint;
- theContext->NextSelected() ) {
- TopoDS_Shape aTShape = theContext->SelectedShape();
- if ( !aTShape.IsNull() && aTShape.ShapeType() == TopAbs_VERTEX )
- continue;
- else {
- Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
- if ( anOwner.IsNull() )
- continue;
- const TopLoc_Location& aLocation = anOwner->Location();
- Handle(AIS_InteractiveObject) anAIS =
- Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
- isFoundPoint = CurveCreator_Utils::pointOnObject( theView, anAIS, theX, theY, thePoint,
- thePoint1, thePoint2 );
- }
- }
- return isFoundPoint;
-}
-
bool CurveCreator_Utils::pointOnObject( Handle(V3d_View) theView,
Handle(AIS_InteractiveObject) theObject,
const int theX, const int theY,
gp_Pnt& thePoint,
gp_Pnt& thePoint1, gp_Pnt& thePoint2 )
{
- bool isFound = false;
+ bool isFullFound = false;
if ( theObject.IsNull() || theView.IsNull() )
- return isFound;
-
- gp_Pnt aPoint;
+ return isFullFound;
+ Handle(AIS_Shape) aShape = Handle(AIS_Shape)::DownCast( theObject );
+ if ( aShape.IsNull() )
+ return isFullFound;
+ const TopoDS_Compound& aCompound = TopoDS::Compound( aShape->Shape() );
+ if ( aCompound.IsNull() )
+ return isFullFound;
+
+ gp_Pnt aCurPoint, aCurPoint1, aCurPoint2;
+ gp_Pnt aFoundPoint, aFoundPnt1, aFoundPnt2;
Standard_Real aParameter;
- gp_Pnt aPnt1, aPnt2;
- Handle(AIS_Line) aLine = Handle(AIS_Line)::DownCast( theObject );
- if ( !aLine.IsNull() ) {
- const Handle(Geom_Line) aGLine = aLine->Line();
- isFound = hasProjectPointOnCurve( theView, theX, theY, aGLine, aParameter );
- if ( isFound ) {
- aPoint = aGLine->Value( aParameter );
-
- Handle(Geom_Point) aPStart;
- Handle(Geom_Point) aPEnd;
- aLine->Points( aPStart, aPEnd );
- aPnt1 = aPStart->Pnt();
- aPnt2 = aPEnd->Pnt();
-
- // in case of Geom line a projection is performed to the infinite line,
- // so it is necessary to bound it by the line size
- Bnd_Box aLineBox;
- aLineBox.Set( aPnt1, gp_Vec( aPnt1, aPnt2 ) );
- isFound = !aLineBox.IsOut( aPoint );
- }
- }
- else {
- Handle(AIS_Shape) aShape = Handle(AIS_Shape)::DownCast( theObject );
- if ( !aShape.IsNull() ) {
- const TopoDS_Wire& aWire = TopoDS::Wire( aShape->Shape() );
- if ( !aWire.IsNull() ) {
- TopExp_Explorer anExp( aWire, TopAbs_EDGE );
- for ( ; anExp.More(); anExp.Next())
- {
- const TopoDS_Edge& anEdge = TopoDS::Edge(anExp.Current());
- if ( !anEdge.IsNull() ) {
- Standard_Real aFirst, aLast;
- Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aFirst, aLast );
-
- if ( aCurve->IsKind( STANDARD_TYPE(Geom_BSplineCurve) ) ) {
- Handle(Geom_BSplineCurve) aBSplineCurve = Handle(Geom_BSplineCurve)::DownCast( aCurve );
- if ( !aBSplineCurve.IsNull() ) {
- isFound = hasProjectPointOnCurve( theView, theX, theY, aCurve, aParameter );
- if ( isFound ) {
- aPoint = aBSplineCurve->Value( aParameter );
- Standard_Integer anI1, anI2;
- aBSplineCurve->LocateU( aParameter, LOCAL_SELECTION_TOLERANCE, anI1, anI2 );
-
- aPnt1 = aBSplineCurve->Value( aBSplineCurve->Knot( anI1 ) );
- aPnt2 = aBSplineCurve->Value( aBSplineCurve->Knot( anI2 ) );
- }
- }
- }
- }
+ bool isFound = false;
+ int aDelta, aMinDelta = 2*SCENE_PIXEL_PROJECTION_TOLERANCE*SCENE_PIXEL_PROJECTION_TOLERANCE;
+ TopExp_Explorer anExp( aCompound, TopAbs_EDGE );
+ for ( ; anExp.More(); anExp.Next())
+ {
+ const TopoDS_Edge& anEdge = TopoDS::Edge(anExp.Current());
+ if ( anEdge.IsNull() )
+ continue;
+ Standard_Real aFirst, aLast;
+ Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aFirst, aLast );
+ if ( aCurve->IsKind( STANDARD_TYPE(Geom_BSplineCurve) ) ) {
+ Handle(Geom_BSplineCurve) aBSplineCurve =
+ Handle(Geom_BSplineCurve)::DownCast( aCurve );
+ if ( !aBSplineCurve.IsNull() ) {
+ isFound = hasProjectPointOnCurve( theView, theX, theY, aBSplineCurve,
+ aParameter, aDelta );
+ if ( isFound ) {
+ aCurPoint = aBSplineCurve->Value( aParameter );
+ Standard_Integer anI1, anI2;
+ aBSplineCurve->LocateU( aParameter, LOCAL_SELECTION_TOLERANCE, anI1, anI2 );
+ aCurPoint1 = aBSplineCurve->Value( aBSplineCurve->Knot( anI1 ) );
+ aCurPoint2 = aBSplineCurve->Value( aBSplineCurve->Knot( anI2 ) );
}
}
}
+ else { // a curve built on a polyline edge
+ Handle(Geom_Line) aGLine = Handle(Geom_Line)::DownCast( aCurve );
+ if ( aGLine.IsNull() )
+ continue;
+ isFound = hasProjectPointOnCurve( theView, theX, theY, aGLine, aParameter,
+ aDelta );
+ if ( isFound ) {
+ aCurPoint = aGLine->Value( aParameter );
+ TopoDS_Vertex V1, V2;
+ TopExp::Vertices( anEdge, V1, V2, Standard_True );
+ if ( V1.IsNull() || V2.IsNull() )
+ continue;
+ aCurPoint1 = BRep_Tool::Pnt(V1);
+ aCurPoint2 = BRep_Tool::Pnt(V2);
+
+ // check that the projected point is on the bounded curve
+ gp_Vec aVec1( aCurPoint1, aCurPoint );
+ gp_Vec aVec2( aCurPoint2, aCurPoint );
+ isFound = fabs( aVec1.Angle( aVec2 ) - M_PI ) < LOCAL_SELECTION_TOLERANCE;
+ }
+ }
+ if ( isFound && aMinDelta >= aDelta ) {
+ aMinDelta = aDelta;
+
+ isFullFound = true;
+ aFoundPnt1 = aCurPoint1;
+ aFoundPnt2 = aCurPoint2;
+ aFoundPoint = aCurPoint;
+ }
}
- if ( isFound ) {
- thePoint = aPoint;
- thePoint1 = aPnt1;
- thePoint2 = aPnt2;
+ if ( isFullFound ) {
+ int aX, anY, aX1, anY1, aX2, anY2;
+ int aDelta;
+ CurveCreator_Utils::ConvertPointToClick( aFoundPoint, theView, aX, anY );
+ CurveCreator_Utils::ConvertPointToClick( aFoundPnt1, theView, aX1, anY1 );
+ CurveCreator_Utils::ConvertPointToClick( aFoundPnt2, theView, aX2, anY2 );
+
+ isFullFound = !isEqualPixels( aX, anY, aX1, anY1, SCENE_PIXEL_POINT_TOLERANCE, aDelta ) &&
+ !isEqualPixels( aX, anY, aX2, anY2, SCENE_PIXEL_POINT_TOLERANCE, aDelta );
+ if ( isFullFound ) {
+ thePoint = aFoundPoint;
+ thePoint1 = aFoundPnt1;
+ thePoint2 = aFoundPnt2;
+ }
}
- return isFound;
+ return isFullFound;
}
bool CurveCreator_Utils::hasProjectPointOnCurve( Handle(V3d_View) theView,
const int theX, const int theY,
const Handle(Geom_Curve)& theCurve,
- Standard_Real& theParameter )
+ Standard_Real& theParameter,
+ int& theDelta )
{
bool isFound = false;
if ( theView.IsNull() )
int aX, anY;
CurveCreator_Utils::ConvertPointToClick( aNewPoint, theView, aX, anY );
- int aXDelta = abs( aX - theX );
- int anYDelta = abs( anY - theY );
- isFound = aXDelta < SCENE_PIXEL_TOLERANCE && anYDelta < SCENE_PIXEL_TOLERANCE;
+ isFound = isEqualPixels( aX, anY, theX, theY, SCENE_PIXEL_PROJECTION_TOLERANCE, theDelta );
}
}
return isFound;
}
+
+bool CurveCreator_Utils::isEqualPixels( const int theX, const int theY, const int theOtherX,
+ const int theOtherY, const double theTolerance, int& theDelta )
+{
+ int aXDelta = abs( theX - theOtherX );
+ int anYDelta = abs( theY - theOtherY );
+
+ theDelta = aXDelta*aXDelta + anYDelta*anYDelta;
+
+ return aXDelta < theTolerance && anYDelta < theTolerance;
+}
+
+bool CurveCreator_Utils::isEqualPoints( const gp_Pnt& thePoint, const gp_Pnt& theOtherPoint )
+{
+ return theOtherPoint.IsEqual( thePoint, LOCAL_SELECTION_TOLERANCE );
+}
