+ // Find the corresponding profile point
+ ProfilePoints aProfilePoints = GetProfilePoints( false );
+ if ( aBottomIndex >= 1 && aBottomIndex <= aProfilePoints.Length() ) {
+ aBottom = aProfilePoints.Value( aBottomIndex );
+ }
+
+ return aBottom;
+}
+
+ HYDROData_Profile::ProfilePoint HYDROData_Profile::GetMiddlePoint( bool CanUseDefault ) const
+ {
+ ProfilePoint aMiddlePoint;
+
+ gp_XY aLeftPnt, aRightPnt;
+ if ( GetLeftPoint( aLeftPnt, true, CanUseDefault ) && GetRightPoint( aRightPnt, true, CanUseDefault ) ) {
+ gp_XYZ aPnt1( aLeftPnt.X(), aLeftPnt.Y(), 0. );
+ gp_XYZ aPnt2( aRightPnt.X(), aRightPnt.Y(), 0. );
+ gp_Pnt aMiddlePoint2d( 0.5 * ( aPnt1 + aPnt2 ) );
+
+ gp_Lin aMidLin( aMiddlePoint2d, gp::DZ() );
+ TopoDS_Edge aMidEdge = BRepLib_MakeEdge( aMidLin );
+
+ TopoDS_Iterator anIt( TopoDS::Wire( GetShape3D() ) );
+ for ( ; anIt.More(); anIt.Next()) {
+ const TopoDS_Edge& anEdge = TopoDS::Edge( anIt.Value() );
+
+ /*
+ Standard_Real aStart, anEnd;
+ Handle(Geom_Curve) aCurve = BRep_Tool::Curve( anEdge, aStart, anEnd );
+ gp_Pnt aMiddlePointOnCurve = aCurve->Value( ( aStart + anEnd ) / 2 );
+ */
+
+ BRepExtrema_ExtCC ExtremaEE( aMidEdge, anEdge);
+ if (ExtremaEE.IsDone() && ExtremaEE.NbExt() != 0) {
+ for ( Standard_Integer i = 1; i <= ExtremaEE.NbExt(); i++ ) {
+ if ( ExtremaEE.SquareDistance(i) <= Precision::Confusion() ) {
+ aMiddlePoint = ExtremaEE.PointOnE1(i).XYZ();
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ return aMiddlePoint;
+ }
+
+void HYDROData_Profile::ProjectProfilePoints( ProfilePoints& thePoints )
+{
+ int low = thePoints.Lower(), up = thePoints.Upper();
+ gp_Pnt aFirst = thePoints.Value( low );
+ gp_Pnt aLast = thePoints.Value( up );
+ gp_Vec d( aFirst, aLast );
+ gp_Vec n( d.Y(), -d.X(), 0 );
+
+ Handle(Geom_Plane) aPlane = new Geom_Plane( aFirst, gp_Dir( n ) );
+ for( int i=low; i<=up; i++ )
+ {
+ gp_XYZ p = thePoints.Value( i );
+ gp_Pnt pp = GeomAPI_ProjectPointOnSurf( p, aPlane );
+ thePoints.SetValue( i, pp.XYZ() );
+ }
+}