Re: [Plib-users] BGL Loader

[Steve B. <sjb...@ai...>]

John Tsao wrote:
> 
> Surprisingly to me, about 90% of the the polygons in BGL files (for urban areas)
> are actually composed by  BGL_BUILDING.  The command takes 4 arguments of  the
> dimension of the buildings (another 4 are typically just 0's)...

Probably the origin of the building is three of those...dunno what the fourth would
be.  Probably a rotation angle.

> ...and simply draws blocks.
> I need to think about how to embed this procedure into ssgLoaderMDL.

Just make it generate an ssgVtxTable containing a cubeoid.

You can hack the code to generate an arbitary cuboid from plib/src/ssgAux/ssgaShapes.cxx
(ssgaCube::regenerate() is the function you need).  Please don't actually generate an
ssgaCube object though (although that would *seem* reasonable) because it would create
a dependance on libplibssgaux.a that would break the build mechanism for 90% of PLIB
applications.

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