I have a 3D dataset where each point stores the 3 components of the velocity and a scalar. I want to plot glyphs, but only at points where the scalar has a certain value (say 0). What filter can help me ignore the points with non-zero scalar value? My requirement is very similar to the “Mask Points” filter but I do not want random sampling - I want to sample points based on the scalar value.

You should extract the points of interest, and apply the glyph on the whole result.

For instance, use the `FindData`

panel and make a query to select points depending on the scalar, and then use `Extract Selection`

filter.

Thanks, you led me to the right place. I was able to use “Threshold” filter to extract the required points. I did not need to follow it up with the extract selection.

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