[GRASS-user] Reproject a large number of maps + converting to GeoJSON files

[Panagiotis Mavrogiorgos]

Hello everybody,

Which is the prefered method of reprojecting a large number of maps and
converting them to e.g. GeoJSON files?

I think that there are two options:

1. (According to the wiki
<https://grasswiki.osgeo.org/wiki/Map_Reprojection>), you should create a
new location with the export projection you want to export, import the maps
using {v,r}.proj and then export the maps (e.g. using v.out.ogr/r.out.gdal.

2. Export the maps directly using v.out.ogr/r.out.gdal and then reproject
them using GDAL/OGR.

So,

1. So are there any significant differences between the two methods? AFAIK
the underlying algorithms should be the same.

The first method seems to have higher disk space requirements, while the
second one seems to be easier to implement.

2. How can I handle vertex densification in the second approach?

3. Are there any other caveats that I need to be aware of?

best regards,
Panos
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