[geos-devel] Test OverlayNG for MVT tiling

[Sandro Santilli]

On Mon, Aug 03, 2020 at 11:48:02AM -0700, Martin Davis wrote:
> Great that you're testing this.
> 
> Yes, currently the precision is not exposed via the C API (well, I think it
> is technically, by setting the geometry precision model, but this involves
> an expensive (and unnecessary) precision reduction step, so that's useless
> for performance.
> 
> My hope is that the C API will expose overlay operations which take an
> explicit precision (scale factor = 1 / grid size). This will invoke
> snap-rounding, which should provide fully-robust rounded geometry - ideal
> for clipping to low-resolution tiles - I hope!

Here it is: https://git.osgeo.org/gitea/geos/geos/pulls/105

I'm merging it shortly.


--strk;