[vtkusers] point picking on vtkImageActors

[shengweng]

Hi,Dean,
  I want to implement to display the mouse position and intensity using the
class vtkImageCoordinateWidget, but I don't understand what's the header
files "vtkLocalHybridWin32Header.h" and how to write this file. 
Would you please explaining the following texts and give me an example?

#include "vtkLocalHybridWin32Header.h" // Include configuration header. 
// note that you should use the build structure in /VTK/EXAMPLES/BUILD/vtkMy 
// and NOT vtkLocal, I just call my build vtkLocal because I don't like 
"vtkMy" 
// See the readme documentation in /VTK/EXAMPLES/BUILD/vtkMy 
// You may also have to rename VTK_LOCAL_HYBRID_EXPORT depending on your 
// specific naming convention. 


I also found somebody submitted a sample code as follow:
//////////////////////////////////////////////////////////////
#include "vtkImageActor.h"
#include "vtkImageData.h"
#include "vtkImageCoordinateWidget.h"
#include "vtkInteractorStyleImage.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkVolume16Reader.h"
#include "vtkImageCoordinateWidget.h"
#include "vtkImageViewer2.h"


void main( void )
{
  char* fname =  "D:/Guo/VTKData/Data/headsq/quarter";

// Start by loading some data.
//
  vtkVolume16Reader* v16 = vtkVolume16Reader::New();
	v16->SetDataDimensions(64, 64);
	v16->SetDataByteOrderToLittleEndian();
	v16->SetImageRange(1, 93);
	v16->SetDataSpacing(3.2, 3.2, 1.5);
	v16->SetFilePrefix(fname);
	v16->ReleaseDataFlagOn();
	v16->SetDataMask(0x7fff);
	v16->Update();

  delete[] fname;

  vtkImageViewer2* viewer = vtkImageViewer2::New();
  vtkInteractorStyleImage* style = vtkInteractorStyleImage::New();
  vtkRenderWindowInteractor* iren = vtkRenderWindowInteractor::New();
  iren->SetInteractorStyle(style);
  viewer->SetupInteractor(iren);
  viewer->SetInput(v16->GetOutput());
  viewer->SetSliceOrientationToXY();
  viewer->SetSlice(45);

  style->Delete();

// Set up the image coord widget
//
  vtkImageCoordinateWidget* widget = vtkImageCoordinateWidget::New();
	widget->SetDefaultRenderer(viewer->GetRenderer());
	widget->SetViewProp(viewer->GetImageActor());
	widget->SetInput(v16->GetOutput());
	widget->SetInteractor(iren);
	widget->DisplayTextOn();
	widget->On();

  viewer->Render();

  iren->Start();

  widget->Delete();
  v16->Delete();
  viewer->Delete();
  iren->Delete();
}

Thanks,
               Shengwen

--
View this message in context: http://vtk.1045678.n5.nabble.com/point-picking-on-vtkImageActors-tp1227852p4650058.html
Sent from the VTK - Users mailing list archive at Nabble.com.