Investigate faceting in vegalite and gemini about datamations HOT 8 CLOSED

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Could not animate faceted vegalite spec. Seems like it is not supported now.

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Just drawing with vega:

from datamations.

Could not animate faceted vegalite spec. Seems like it is not supported now.

cc @sharlagelfand

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Too bad about no faceted animations with gemini.

Does drawing with vega (instead of vega lite) buy us any additional functionality?

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@jhofman There is no difference if you use vega or vega lite -- gemini does not support this kind of animation.

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got it.

so we need to decide if we solve the problem of determining coordinates for group_by frames on the base language (e.g., R) or rendering language (e.g., javascript) side.

here's another question on this, which is related to this comment from @sharlagelfand on #25: even though gemini doesn't support faceting, could you make a faceted plot with vegalite, then read off the pixel coordinates of the points, and "fake" the facets yourself by creating a non-faceted vegalite spec with points in the same place?

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closing this in favor of the new #32 to hack faceting in a gemini-compatible way.

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