On Monday, 10 February 2020 04.29.37 EST Martin Dobias wrote: > MDAL stores TIN as a vector of vertices (XYZ) and a vector of faces > (where each face is a vector of indices of vertices). There is no > topological representation like half-edge data structure as this has > not been needed so far (the library so far has been mostly used for > rendering, deriving datasets and conversion between formats). MDAL now > supports vertex and face iterators, so drivers can use whatever > representation they want (including not keeping the mesh in memory at > all) as long as they can provide those iterators.
Looks like I need more help than belongs on the discuss list. Is there a mailing list for MDAL? Bezitopo and PerfectTIN, from which I'll be porting the TIN read/write routines, use a sort of winged-edge data structure. But the points, edges, and triangles are held in STL maps, which have to be in memory. Pierre -- When a barnacle settles down, its brain disintegrates. Já não percebe nada, já não percebe nada. _______________________________________________ Discuss mailing list Discuss@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/discuss