felt / tippecanoe

Build vector tilesets from large collections of GeoJSON features.
BSD 2-Clause "Simplified" License
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Problems when generating a mbtile from few partitions. #184

Open gcontrerasj opened 7 months ago

gcontrerasj commented 7 months ago

Hello,

I have a large dataset that in order to improve performance when generating the geojson i have chunk it into 5 instead of only 1 file of 12 gb but when creating the mbtiles from the different partitions at zoom 16 I got this message:

tile 16/32863/21860 size is 500416 with detail 12, >500000
Going to try keeping the sparsest 89.93% of the features to make it fit

What I don't get when using just one file.

This is the command i have used:

tippecanoe --minimum-zoom=13 --maximum-zoom=16 -r1 -B18 --drop-densest-as-needed -l my_layer_name -o mymbtilename.mbtiles $(find *.geojson -type f | grep layer)

It fetch all the files and have same count of features that when using single geojson.

I have tried to avoid any stats at tile level using the -pg flag, but still the same issue.

Thanks in advance for any tip or help on this as I am struggling to find why?