[OSM-talk] JOSM plugin to import GeoJSON?

[Stefan Keller]

Hi,

2016-03-21 17:33 GMT+01:00 Frederik Ramm <frederik at remote.org>:
> I'm not sure if Geopackage has significant performance improvements over
> simple Spatialite but if it hasn't then my recommendation for simple GIS
> processing is certainly to stick with shape files for the time being -
> despite all their shortcomings.

Shapefiles, Spatialite and GeoPackage all use R-tree indexes.
I never heard about performance advantages of Shapefiles (except a bug
in a former Spatialite driver).
Can you tell me a use case? Which Spatialite SW are you using?

What people need to realize is, that Shapefiles really have issues:
1. Attribute name length restricted to 10 chars => resulting in
information loss.
2. Strings length restricted to 255 chars => resulting in information loss.
3. No Multi LineString/Multi Polygon => resulting in information loss.
4. Max. file size restricted to 2GB => resulting in splitting tables
into several files.
5. Several cluttered files => makes users forget to include all.

:Stefan


2016-03-21 17:33 GMT+01:00 Frederik Ramm <frederik at remote.org>:
> Hi,
>
> On 03/20/2016 10:56 PM, Stefan Keller wrote:
>> But Shapefile remains an oldtimer with more drawbacks than limited
>> field names; see [1].
>> GeoJSON (ascii) and GeoPackages (binary) are formats which are more
>> suited for the job.
>> I still have hope that JOSM will be able to read those vector formats too.
>
> Frankly, whenever I venture into the brave new world of Spatialite, I
> come back to good old shape files after a while for performance reasons.
> I'm not sure if Geopackage has significant performance improvements over
> simple Spatialite but if it hasn't then my recommendation for simple GIS
> processing is certainly to stick with shape files for the time being -
> despite all their shortcomings.
>
> Bye
> Frederik
>
> --
> Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"
>
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