[vtkusers] vtkProbeFilter can't convert unstructuredgrid data to Imagedata

[goldenrodxiao]

Hi all,

I just learned VTK by vtk user guide(4.2). I have read the charpter 6, it is said that vtkProbeFilter can resample an unstructuredGrid data into a regular image data. But when I follow the user guide and try it(sample the structuredgrid into image data, I found I couldn't get imagedata, I just get Dataset data.  please help me.

By the way,I have a large number od point data(x,y,z),so I considered I can convert them into the image data, then carry on Raycasting method. can you give some suggestion about it?  

Best Regards,
     

//my code below

fp=fopen("test1.vtk","r");
	float x,y,z;
    while(!feof(fp))
	{
		fscanf(fp,"%f%f%f\n",&x,&y,&z);
	    points->InsertNextPoint(x,y,z);
		//cout<<x<<y<<z<<endl;
	}
	vtkCubeSource *cube=vtkCubeSource::New();
	cube->SetCenter(0.0,0.0,0.0);

	vtkPolyData *profile=vtkPolyData::New();
	profile->SetPoints(points);
    vtkProbeFilter *probe=vtkProbeFilter::New();
    probe->SetInput(cube->GetOutput());
	probe->SetSource(profile);
	

 				

　　　　　　　　goldenrodxiao
　　　　　　　　goldenrod at 263.net
　　　　　　　　　　2006-04-20