I know it's generally possible to split out data viz layout algorithms from rendering engines, but still don't have a clear grip on how that works. Does anyone have any examples?
In short I guess it's: "can we split the algorithm from the rendering engine?" If the answer is yes, we could apply all sorts of optimizations to make it *fast*.
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Okay, that's beyond my ken :) I do know that with D3 you can output things as canvas or SVG, so to an extent, so some though has gone in there to decouple structuring the data from rendering. That might help work out an approach, but beyond that… ¯\_(ツ)_/¯
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As a far as I'm aware, if you're looking for the theoretical underpinning then that vega-lite paper has some useful stuff, & that in turn borrows ideas from Grammar of Graphics (Tableau was effectively an implementation of the ideas in the book, IIIRC)https://www.springer.com/us/book/9780387245447 …
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