[vtkusers] Re: vtkConnectivityFilter --> source code

[Goodwin Lawlor]

Hi Michnay,

> //This always returns 1:
> AfxMessageBox(pDoc->m_connectivity->GetExtractionModeAsString());

This should return a string "ExtractAllRegions" not 1. Try:

AfxMessageBox(pDoc->m_connectivity->GetNumberOfExtractedRegions());

If you are using vtkImageThreshold first, why not use it to "select" the
mask. See how its done here:
http://www.crd.ge.com/~lorensen/seg12/scripts/segmented16.tcl

Something like:

vtkImageThreshold selectTissue
    selectTissue ThresholdBetween $TISSUE $TISSUE
    selectTissue SetInValue 255
    selectTissue SetOutValue 0
    selectTissue SetInput [$lastConnection GetOutput]

and then contour at a value of 127.5


hth

Goodwin