okay so here's a weird question. scott mccloud's "big triangle"— https://wordsonplay.com/2009/10/the-big-triangle/ is there a general term for this kind of thing? a space with extremes where items in the space are annotated with illustrations/representations whose position in the space corresponds to the extent to which the properties at the extremes describe them?
e.g., eadweard muybridge photo illustrations (if you unwrapped them into a single line) http://www.eadweardmuybridge.co.uk/ would be a one-dimensional example of this (where the dimension represents time); t-sne visualizations would be another example (where the dimensions don't have a set meaning) https://lvdmaaten.github.io/tsne/ maybe even the periodic table of elements would qualify https://en.wikipedia.org/wiki/Periodic_table (though in that case the "representations" are just the names of the elements)
the new york magazine approval matrix is another example http://nymag.com/arts/all/approvalmatrix/approval-matrix-2017-03-20/
and the covers of animorphs books https://duckduckgo.com/?q=animorphs&t=ffab&iax=images&ia=images
related, it looks like the only critical writing on animorphs comes in the form of pay-to-download "homework help" book reports http://www.bookrags.com/studyguide-animorphs-4/style.html#gsc.tab=0
@ansate ha, nice! actually what I'm looking for is the earliest known example of an illustration showing intermediate stages of transformation from one thing to another (when that transformation *isn't* time based, a la https://en.wikipedia.org/wiki/March_of_Progress) so really only the *covers* of animorphs are of particular interest at this point
@aparrish ah ha! These things tie together better with that context
@ansate hahaha there is some kind of logic to my intellectual careenings, I assure you! or at least I hope there is
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