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Yes I remember doing something like that in 90s for a survey/map engineering cad application. After delaunay triangulation, calculating approximate voulume is e
by aaa_aaa 1mo ago
Yes I remember doing something like that in 90s for a survey/map engineering cad application. After delaunay triangulation, calculating approximate voulume is easy. But this probably is a more general solution
- srean 1mo agoYes it goes by a couple of names. Surveyor's formula, shoelace formula. The Surveyor’s Area Formula Bart Braden The College Mathematics Journal, September 1986, Volume 17, Number 4. https://web.archive.org/web/20150406152731if_/http://www.maa.org/sites/default/files/pdf/pubs/Calc_Articles/ma063.pdf https://web.archive.org/web/20150406152731if_/http://www.maa...
- sigbottle 1mo agoOh, it is the shoelace formula, but for 3D? OP's description vaguely triggered memories of the shoelace formula from a decade ago, but geometry was never my strong suit. All I remembered was positive/negative triangles (or was it trapezoids)? make magic happen for area calculation.