I have a data set that I'm trying to interpolate, and in some cases there are large swaths of area that are surrounded by points, but don't contain any points. This produces a graph where these interior regions have values determined by the nearest points.
Rather than assuming that these points are accurately represented by the surrounding points, I would prefer to not render those grid points, and only show grid boxes which are actually representative of data. Is there a way to do this? I was thinking I could add second field and assign opacity to that, but I can't figure out a way to get the field to be 'true' if there are points enclosed and 'false' otherwise (or to simply count the number of enclosed points.) Any ideas? Thanks for any suggestions!
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