<div>Are you sure that your ImageChangeInformation is connected to the Volume16Reader?</div>
<div> </div>
<div>Bill<br><br> </div>
<div><span class="gmail_quote">On 2/27/07, <b class="gmail_sendername">Michael Knopke</b> <<a href="mailto:Michael.Knopke@gmx.de">Michael.Knopke@gmx.de</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi,<br><br>I just noticed that using vtkImageChangeInformation in my pipeline always<br>changes the ScalarType to double, before the type was unsigned_short
<br><br>even when calling vtkImageCast->SetOutputScalarTypeToUnsignedShort();<br><br>the scalartype is still double. Very Strange.<br><br>Code:<br><br>v16 = vtkVolume16Reader::New();<br><br>v16...extend and spacing<br>
<br>v16->GetOutput()->GetScalarTypeAsString(); // returns unsigned_short<br><br>image_Change = vtkImageChangeInformation::New();<br>image_Change->CenterImageOn();<br><br>image_Change->GetOutput()->GetScalarTypeAsString(); // returns double
<br><br>image_Cast = vtkImageCast::New();<br>image_Cast->SetOutputScalarTypeToUnsignedShort();<br><br>image_Cast->GetOutput()->GetScalarTypeAsString(); //returns double???<br><br>The reason I use GetOutput() and not as proposed for new standard GetOutputPort() is that some classes (like vtkImagePlaneWidget) don't support setting a port but use direct access to imageData ( via ->SetInput())
<br><br>So using vtkImageChangeInformation with vtkImagePlaneWidget as input will give a wrong reslice (white output) because the datatype changed. Using v16 directly works.<br><br>Regards<br><br>Michael<br><br><br><br>--
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