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I've been thinking similarly about the bounding box culls for st_intersect, is it worth having "feature-level bbox" as a fully fledged POLYGON sf used to pre-filter the combinations tested in full.
There is also scope for more general decomposition of objects for specialized optimizations (convex parts, triangles). I was working on benchmarks for this, which led to the motivation for #209. I think intersection is not improved by decomposition, but intersection-overlay definitely is.
From @mdsumner on February 7, 2017 4:28
I've been thinking similarly about the bounding box culls for
st_intersect
, is it worth having "feature-level bbox" as a fully fledged POLYGON sf used to pre-filter the combinations tested in full.There is also scope for more general decomposition of objects for specialized optimizations (convex parts, triangles). I was working on benchmarks for this, which led to the motivation for #209. I think intersection is not improved by decomposition, but intersection-overlay definitely is.
Copied from original issue: r-spatial/sfdct#10
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