Hi

On 12/6/19 12:19 AM, Nyall Dawson wrote:
On Thu, 5 Dec 2019 at 17:35, Alexander Bruy <[email protected]> wrote:
There is a FlatGeoBuf [0], probably we can use it or at least get some ideas.

[0] https://github.com/bjornharrtell/flatgeobuf
FlatGeoBuf indeed looks very exciting!

But to be honest, I think an easier path would be just to directly
serialize the qgis features to disk -- we already have
QgsFeature::operator<< and >> to read and write features to data
streams (without loss of any information), so we could utilise those
during the disk read/write.

Yes, FlatGeoBuf looks nice!

Meanwhile, why not use a well known spatial data file format?

I think rolling serialized QgsFeatures has some gotchas too, like writing spatial indexes, getting the file headers right and possibly introducing yet another file format.

Obligatory XKCD https://i.redd.it/ji9zzqc919b21.png

Matthias


Nyall
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