Dale--

Try typing "v" This should pop-up a panel that will let you select a datum subset.

Hope this helps.

--Sam


On 1/14/2018 5:24 PM, Dale Braden wrote:
Hello,

Having looked at the docs and explored the UI, I can't tell whether Paraview can do what I want.  I have some scalar field data on a regular grid.  I import that into Paraview and then use the Gradient filter to calculate the gradient of this data.  Now what I want to do is query both of these data sets and plot the scalar field data only if it falls within a certain range of values AND its gradient also falls within a certain range.  I can imagine doing this either by writing a filter to create a third data set which contains only those points which pass the test, but neither the Calculator nor the Custom Filter seem to let me do that.  Or I could create the plot more directly by creating a multivariate transfer function, but I can't find any way to do that in the UI.  Can Paraview do this kind of thing from within the UI?

Eventually I will want to add the Laplacian and be able to query all 3 field properties in order to determine what to plot, but for now I thought I would work on the simpler 2-variable case.

Dale




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