[vtkusers] Help Display Slice of images on 3D ((vtkImageActor))

[Hellice]

Hi Again well afer Hours of reading examples  and testing them i comme up
withe some resulte :
This video on youtube shows my work : 
http://www.youtube.com/watch?v=74_RJe47-js&feature=youtu.be
http://www.youtube.com/watch?v=74_RJe47-js&feature=youtu.be 

As you can see i did not get he rendring right , i just used a simple ray
cast and applide on Dicom slices

please if you just have some idea to get it done just tell me.

here is my code
--------------------------------------------------------------------------------------------
*
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkPiecewiseFunction.h"
#include "vtkThreshold.h"
#include "vtkRenderer.h"
#include "vtkVolumeProperty.h"
#include "vtkRenderWindowInteractor.h"
#include <vtkDICOMImageReader.h>
#include <vtkDataSetTriangleFilter.h>
#include <vtkVolumeRayCastMapper.h>
#include <vtkImageData.h>
#include "vtkColorTransferFunction.h"
#include <vtkVolumeRayCastCompositeFunction.h>
#include <vtkVolume.h>
#include <vtkDICOMImageReader.h>

using namespace std;

int main()
{
	vtkRenderer *ren1 = vtkRenderer::New();
	vtkRenderWindow *renWin = vtkRenderWindow::New();
	vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();

	renWin->AddRenderer( ren1 );
	iren->SetRenderWindow( renWin );

	vtkDICOMImageReader *reader = vtkDICOMImageReader::New();
	reader->SetDirectoryName("Data");
    reader->Update();




	vtkPiecewiseFunction *opacityTransferFunction =
vtkPiecewiseFunction::New();
	opacityTransferFunction->AddPoint(20.0,0.0);
	opacityTransferFunction->AddPoint(255.0,2.0);

	vtkColorTransferFunction *colorTransferFunction =
vtkColorTransferFunction::New();
	colorTransferFunction->AddRGBPoint(0.0,0.0,0.0,0.0);
	colorTransferFunction->AddRGBPoint(64.0,1.0,0.0,0.0);
	colorTransferFunction->AddRGBPoint(128,0.0,0.0,1.0);
	colorTransferFunction->AddRGBPoint(192.0,1.0,0.0,0.0);
	colorTransferFunction->AddRGBPoint(255.0,0.0,0.2,0.0);

	vtkVolumeProperty *volumeProperty = vtkVolumeProperty::New();
	volumeProperty->SetColor( colorTransferFunction );
	volumeProperty->SetScalarOpacity( opacityTransferFunction );
	volumeProperty->ShadeOn();
	volumeProperty->SetInterpolationTypeToLinear();

	vtkVolumeRayCastCompositeFunction  *compositeFunction =
vtkVolumeRayCastCompositeFunction::New();
	vtkVolumeRayCastMapper *volumeMapper = vtkVolumeRayCastMapper::New();

	volumeMapper->SetVolumeRayCastFunction( compositeFunction );
	volumeMapper->SetInputConnection ( reader->GetOutputPort() );

	vtkVolume *volume = vtkVolume::New();
	volume->SetMapper( volumeMapper ) ;
	volume->SetProperty ( volumeProperty );

	ren1->AddVolume( volume );
	ren1->SetBackground(0.1,0.21,0.31);

	renWin->SetWindowName("Volume");
	renWin->SetSize(500,500);
	renWin->Render();

	iren->Start();

	return 0;
}
*
20 mn of your precious for reading and try to figur out the prob and i will
be thankful for eternity ^^

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