[vtkusers] help needed on translation

[Yaqian Fang]

Hi, 

I'm trying to create 6 cones each of which rotates 60 degrees.  The
result was they just flashed, then the first 5 were gone leaving the
last one in the scene.  Could anyone please help me have a look at the
following code and tell me where went wrong? 
Thank you.

vtkActor *coneActor;
vtkRenderer *ren1;
vtkRenderWindow *renWin;
vtkConeSource *cone;
vtkRenderWindowInteractor* iren;

void rotate ()
{
	coneActor-> SetOrientation(0, 0, 0);
	ren1->ResetCameraClippingRange();
	renWin->Render();
	renWin->Render();
	renWin-> EraseOff();
	coneActor-> SetOrigin(6.11414, 1.27386, .015175);
	coneActor-> SetOrigin(0, 0, 0);
	coneActor-> SetPosition(0, 0, 0);
	vtkTransform *cowTransform = vtkTransform::New();
	cowTransform->Identity();
	coneActor-> SetUserMatrix(cowTransform-> GetMatrix());
	for (int idx=1; idx<=6; idx++)  {
		coneActor->RotateWXYZ(60,2.19574,-1.42455,-.0331036);
		coneActor->RotateY(60);
		renWin->Render();
		renWin->Render(); 
	}
	renWin-> EraseOn();
}

void main( int argc, char *argv[] )
{
	ren1 = vtkRenderer::New();
	iren = vtkRenderWindowInteractor::New();
	renWin = vtkRenderWindow::New();
	cone = vtkConeSource::New();
	coneActor = vtkActor::New();
	renWin->AddRenderer(ren1);
	iren->SetRenderWindow(renWin);
  	cone->SetResolution(3);
	cone->SetHeight(1);
	cone->SetRadius(0.25);
	vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
      coneMapper->SetInput(cone->GetOutput());
      coneMapper->ScalarVisibilityOff();
	coneActor->SetMapper(coneMapper);
	ren1->AddActor(coneActor);
	ren1->SetBackground( 0.1, 0.2, 0.4 );
	renWin->SetSize(800,800);
	renWin->Render();
	renWin-> EraseOff();
	rotate(); /*rotate*/
	iren->Start();
	cone->Delete();
	coneMapper->Delete();
	coneActor->Delete();
	ren1->Delete();
	renWin->Delete();
	iren->Delete();
}


Regards,
Yaqian


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