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<DIV> </DIV>
<DIV>hi all,</DIV>
<DIV>iv tried this code but it's not working....</DIV>
<DIV>basically the image is not getting generated...only some jagged lines r displayed........</DIV>
<DIV><!--StartFragment -->plz help...</DIV>
<DIV>nitin </DIV>
<DIV><PRE>Hi Adrian,
Take a look at vtkImageImport, what you are trying to do can
be done as follows:
import = vtkImageImport::New();
import->SetDataExtent(0,511,0,511,0,0);
import->SetDataScalarType(VTK_UNSIGNED_SHORT);
import->SetImportVoidPointer(Array);
import->UpdateWholeExtent();
vtkImageData *outData = import->GetOutput();
The best thing about this is that you don't have to copy the
data, outData will actually use Array as its memory pointer.
- David
--David Gobbi, MSc <A href="http://www.vtk.org/mailman/listinfo/vtkusers">dgobbi at irus.rri.on.ca</A>
Advanced Imaging Research Group
Robarts Research Institute, University of Western Ontario
On Wed, 17 Nov 1999, Adrian Anner wrote:
><I> hello
</I>><I>
</I>><I> I have the data from a Picture in an 2d-Array (dim 512,512). Now I want
</I>><I> write this data to vtkImageData.
</I>><I>
</I>><I> I tried the following but it didn't work :
</I>><I>
</I>><I> vtkImageData *outData = vtkImageData::New();
</I>><I> outData->SetWholeExtent (0, 511, 0, 511, 0, 0);
</I>><I> outData->SetScalarType(VTK_UNSIGNED_SHORT);
</I>><I>
</I>><I> unsigned short *ptr;
</I>><I>
</I>><I> for (int y = 0; y <512;y++)
</I>><I> {
</I>><I> for (int x = 0; x <512; x++)
</I>><I>
</I>><I>
</I>><I> ptr = (unsigned short *)(outData->GetScalarPointer(x, y, 0));
</I>><I> *ptr = (unsigned short)Array[x][y];
</I>><I> }
</I>><I> }
</I>><I>
</I>><I> it crashs with the error :
</I>><I>
</I>><I> GetScalarPointer:Pixel(1,0,0) not in memory. Current extend = (0,0,0,0,0,0)
</I>><I>
</I>><I> I'm using a recent nightly release.
</I>><I>
</I>><I> thanks,
</I>><I>
</I>><I> Adrian
</I>><I>
</I>><I>
</I>><I> </I></PRE></DIV></TD></TR>
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