[postgis-devel] Making SFCGAL mandatory

Regina Obe lr at pcorp.us
Thu Nov 22 12:09:44 PST 2018



Regarding solid and non-solid intersection - what if they are indeed two distinct operations, just like ST_Contains and ST_Intersects that mean basically the same thing for point-and-polygon, but start differing with higher dimensions? Maybe we can find two different words for solid intersection and non-solid intersection operations, and then one of them will be GEOS and another CGAL?

 

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Darafei Praliaskouski
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[Regina Obe] 

Forgot to answer this one

 

 

That would be great except for one tiny problem.  Our 3D intersects does not work with TINs even surface ones from what I recall.  Though it seems to me we can fake it similar to how we fake curve support with many functions.  Convert the TINs to a collection of polygons (3 point we might even make some performance enhancements knowing they are all triangles) and do the operation check

 

Thanks,

Regina

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