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Editorial Team
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Asked: 2026-06-04T20:57:24+00:00

I have locations that have quality ‘X’, where X can be a negative or

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I have locations that have quality ‘X’, where X can be a negative or positive value. I would like to plot negative values of X as red, and positive values as green. Intermediate values will be yellow. The opacity of the color will correspond to local density of data.

Issue 85 proves that fusion tables alone can’t do this yet. Is there a viable extension that can handle this style of heatmapping?

I’ve made a mockup of what I want here.

I don’t know if variable transparency will be an inherent problem. Would that even be possible for a Google Map overlay?

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1 Answer

  1. Editorial Team

    It is indeed possible, though I was only able to solve this problem with custom heatmap code. You can see the result here.

    I hope to add the ability to handle both density and data values simultaneously in this API I created. Keep checking.

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