<font color="#000000">Hi all,<br> <br>I loaded vtk file using vtkStructuredPointsReader.<br>-----<br>vtkStructuredPointsReader *spr = vtkStructuredPointsReader::New();<br>spr-&gt;SetFileName(&quot;test.vtk&quot;);             // &quot;test.vtk&quot; is a volume data (256x256x256).<br>
-----<br> <br>Then how can I access specific location, i.e., (100,100,100).<br>After aceesing the location, I&#39;d like to change the scalar value of the location.<br> <br> <br>Thanks,<br> <br> <br>Jinyoung</font>