I've narrowed it down a bit further. It appears that Contour inexplicably rescales ALL the data arrays, even though only one is used to create the surface. When I change the Isosurfaces data range (before applying the Contour) to different values (adding different values, adding ranges, etc.), this changes the range of the other data array after I "apply". I don't want this other array touched. I'm not sure why this would be the default so I'm suspecting a bug?? Perhaps I'm missing something?
In any case, is there actually a way to have Contour create a surface from one data array, but not fuss with the other data array (so that when I have the surface colored with this other array, the data don't get completely changed from real data to something else)? -Tom On Jun 27, 2012, at 10:50 PM, Tom Schoenemann wrote: > Sorry - scratch that. The Append Attributes item DOES claim to have the right > values. According to the Information tab, there are 2 data arrays: One with > scalars representing the stat data, and the other called "surface" which > ranges from 0 to 1 and was created by the calculator step (see my last note). > However, when I make a Contour out of this item, telling it to use "surface" > to do this, it does indeed make a surface, but it inexplicably changes the > stat data scalars to a completely new range of [127.863, 128.063]. Note that > the Append Attributes item claims to have this same array with [0, 128.619]. > > Any ideas? As far as I can tell, Contour inexplicably changes the stat data > scalar values to a new range. ??? Is this a bug, or am I doing something > wrong? > > -Tom > > On Jun 27, 2012, at 10:36 PM, Tom Schoenemann wrote: > >> Hi all, >> >> I'm trying to display statistical values in color on a surface. The stat >> values are in voxels, originally, but are translated from a NIFTI format >> file to a .vtk format. I've got a binary version of the object (1's where >> the object is, 0's everywhere else). Through comments on this list, I've >> figured out that if I use the calculator to create a copy of the binary >> scalar values (and rename them as something else, e.g., "surface"), and then >> use Append Attributes to combine the stat data scalars with the surface >> scalars (from the binary image), I can then use Contour to make the surface >> (using the "surface" scalars) and then color this surface with the stat data >> scalars. So far so good. >> >> Here is my problem: When I do Append Attributes, the stat data scalars all >> get changed to a range of 0 to 1, even though the stat data file that was >> used in Append Attributes claims to have values of: [0, 128.619]. So, what >> is going on? Why is Append Attributes not appending attributes without >> changing their values?? >> >> Any ideas? >> >> -Tom >> >> >> _________________________________________________ >> P. Thomas Schoenemann >> >> Associate Professor >> Department of Anthropology >> Indiana University >> Bloomington, IN 47405 >> Phone: 812-855-8800 >> E-mail: [email protected] >> >> Open Research Scan Archive (ORSA) Co-Director >> Consulting Scholar >> Museum of Archaeology and Anthropology >> University of Pennsylvania >> >> Homepage: http://mypage.iu.edu/~toms/ >> >> >> >> >> >> >> >> >> >> _______________________________________________ >> Powered by www.kitware.com >> >> Visit other Kitware open-source projects at >> http://www.kitware.com/opensource/opensource.html >> >> Please keep messages on-topic and check the ParaView Wiki at: >> http://paraview.org/Wiki/ParaView >> >> Follow this link to subscribe/unsubscribe: >> http://www.paraview.org/mailman/listinfo/paraview > > _________________________________________________ > P. Thomas Schoenemann > > Associate Professor > Department of Anthropology > Indiana University > Bloomington, IN 47405 > Phone: 812-855-8800 > E-mail: [email protected] > > Open Research Scan Archive (ORSA) Co-Director > Consulting Scholar > Museum of Archaeology and Anthropology > University of Pennsylvania > > Homepage: http://mypage.iu.edu/~toms/ > > > > > > > > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview _________________________________________________ P. Thomas Schoenemann Associate Professor Department of Anthropology Indiana University Bloomington, IN 47405 Phone: 812-855-8800 E-mail: [email protected] Open Research Scan Archive (ORSA) Co-Director Consulting Scholar Museum of Archaeology and Anthropology University of Pennsylvania Homepage: http://mypage.iu.edu/~toms/
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