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  • $\begingroup$ I don't have version 10 (or a computer, for that matter), but I believe the output of DiscretizeRegion[] should have a GraphicsComplex[] object in it somewhere. Can you check? $\endgroup$ Commented Jul 28, 2015 at 14:00
  • $\begingroup$ I'm not sure how I would check that in all honesty... I'll dig into it and see if I can work out how to check the output $\endgroup$ Commented Jul 28, 2015 at 15:22
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    $\begingroup$ The stuff within Polygon[] looks to be useful; you'll note that it has a list of triples, corresponding to the triangle whose vertices are indexed by the integers in the triple. You should now have something to start with. $\endgroup$ Commented Jul 28, 2015 at 16:02
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    $\begingroup$ Something like this? test=ToString[InputForm[foo]];ToExpression[StringTake[test,StringPosition[test,"Polygon"][[1, 1]], StringPosition[test, "Properties"][[1, 1]] - 4}]] $\endgroup$ Commented Jul 28, 2015 at 17:19
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    $\begingroup$ Have a look at the documentation for ToElementMesh and ElementMesh. Either use the ElementIncidents or the boundary or mesh element connectivity data structures. There is also a Tutorial $\endgroup$ Commented Jul 28, 2015 at 17:22