ESRI ArcObjects under the hood: if (random()) { crash(); } else return UndefinedError; Tongue in cheek, of course, and they've gotten noticeably better

ESRI ArcObjects under the hood: if (random()) { crash(); } else return UndefinedError; Tongue in cheek, of course, and they've gotten noticeably better since 4 years ago. (I've been working with ArcObjects since their 8.3 release... shudder.) If you're interested in how they implement vector operations: - http://www.vividsolutions.com/jts/main.htm - http://trac.osgeo.org/geos/ As far as raster operations go, I think that GRASS does all they do, plus more. All of the above are nice open-source implementations so you can go as deep as you'd like. ;) p.s. Most of the algorithms ESRI (and similar) use might not be spelled out in blog posts, but they certainly are in textbooks. ;) p.p.s. Out of curiosity, what have you been working on? ESRI tech is about as anti-startup as one can imagine. It's like using Oracle for your startup's database.