Fixed a memory leak

Change-Id: I940414cc20f6e84600341d255744f0f4fb20440f

Examples/Hybrid/Python/CylinderAndPolarAxes.py

@@ -46,7 +46,7 @@ polaxes.SetMinimumAngle( -60. )
 polaxes.SetMaximumAngle( 210. )
 polaxes.SetNumberOfRadialAxes( 10 )
 polaxes.SetNumberOfPolarAxisTicks( 9 )
-polaxes.SetAutoSubdividePolarAxis( 0 )
+polaxes.AutoSubdividePolarAxisOff()
 polaxes.SetCamera( renderer.GetActiveCamera() )
 polaxes.SetPolarLabelFormat( "%6.1f" )
 polaxes.GetRadialAxesProperty().SetColor( .0, .0, 1. )
@@ -73,6 +73,6 @@ interactor.SetRenderWindow( window )
 
 # Start interaction
 window.Render()
-polaxes.SetNumberOfRadialAxes( 18 )
+polaxes.AutoSubdividePolarAxisOn()
 
 interactor.Start()

Hybrid/vtkPolarAxesActor.cxx

@@ -788,6 +788,7 @@ void vtkPolarAxesActor::BuildPolarAxisTicks( double x0 )
     // Use pre-set number of arcs when it is valid and no auto-subdivision was requested
     delta =  this->MaximumRadius / ( this->NumberOfPolarAxisTicks - 1 );
     }
+
   // Set major start and delta corresponding to range and coordinates
   this->PolarAxis->SetMajorRangeStart( 0. );
   this->PolarAxis->SetDeltaRangeMajor( delta );
@@ -987,6 +988,8 @@ void vtkPolarAxesActor::SetNumberOfRadialAxes( vtkIdType n )
         this->RadialAxes[i] = NULL;
         }
       }
+    delete [] this->RadialAxes;
+    this->RadialAxes = NULL;
     }
 
   // Create and set n radial axes of type X

Hybrid/vtkPolarAxesActor.h

@@ -83,6 +83,7 @@ public:
   // Default: true
   vtkSetMacro( AutoSubdividePolarAxis, bool );
   vtkGetMacro( AutoSubdividePolarAxis, bool );
+  vtkBooleanMacro( AutoSubdividePolarAxis, bool );
 
   // Description:
   // Set/Get the maximum radius of the polar coordinates.