[vtkusers] Reslice Question - please help!

[jflovell at engmail.uwaterloo.ca]

Hi, vtkusers, I'm sorry, i'm new to vtk and here is yet another vtkimagereslice
question. I've searched the archive and read the documentation, but haven't
found anything to help me.

I need to move slices around a volume quickly. Therefore I create 3 sets of
vtkimagereslice slices (for a total of {xdim + ydim + zdim} slices). Should i be
caching this many vtkimagereslices? Should I be caching their mappers instead? 

Should I be using dimensionality of 2 or 3? vtkImageReslice can output either.
The slices themselves are two dimensional, but they are in a 3D environment.


vtkRenderer* ren = vtkRenderer::New();
vtkimagedata* imagedata = reader->read3Ddatafile();

//many of these slices get created in a loop
{
vtkImageReslice* a_z_slice = vtkImageReslice::New();
a_z_slice ->SetInput->(imagedata ->GetOutput());
a_z_slice ->SetDirectionAxisCosines(1,0,0,0,1,0,0,0,1);
a_z_slice ->SetOutputExtent(0,x,0,y, 0, 0);
a_z_slice ->SetResliceAxisOrigin( a,b,c);//any place in the image
}

//later
vtkDataSetMapper* map = new vtkDataSetMapper::New();
map->SetInput(a_z_slice->GetOutput());
vtkActor* act = vtkActor::New();
act->SetMapper(map);
ren->AddActor(act);
//is this a good way? something is wrong i think.



Thank you for taking the time to read this, any answers will be greatly
appreciated.

Sincerely,
J Lovell



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