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This could be a reference: http://webdev.archive.org/details/nasa_techdoc_20020054405 — Preceding unsigned comment added by Tobo ( talkcontribs) 07:18, 1 September 2012 (UTC) reply

More precise definition

Could anyone write explicitly which method is used to obtain this visualisation ? The main idea seems clear, but I think it currently lacks a real definition which would allow one to obtain such an image. — Preceding unsigned comment added by Arthur MILCHIOR ( talkcontribs) 10:38, 3 June 2018 (UTC) reply