dhis2-devs team mailing list archive

[Knut Staring <knutst@xxxxxxxxx>]

Or rather, there is an open soruce python implementation that will
work inside PostGIS (the first link below).

We could use this here instead of FME since we have all our data in
PostGIS, and as I said in an email last night, I actually think it is
a good idea in the longer term to provide a version of DHIS 2 which
runs on top of PostGIS (with full precision data) and also has
Geoserver somewhat integrated. So people who have this version of
DHIS2 could have a third option in addition to the two I outline
below.

On Fri, May 21, 2010 at 3:30 PM, Knut Staring <knutst@xxxxxxxxx> wrote:
> Unfortunately, the links below and my earlier research indicates that
> the "preserve shared boundaries" feature may not be available outside
> of proprietary tools. Still, for many purposes, it will be fine to not
> have this, especially at low levels of simplification (resulting in
> larger GeoJSON files, which will of course be heavier to get over the
> internet and for the browser to handle). It is largely an empirical
> question - I noticed the cracks when trying to create GeoJSON that was
> small enough for world maps, which was a true struggle. One option
> would be to provide users with a choice of whether the shapefile they
> upload should be simplified or not, and hardcode a reasonable
> simplification. Their other option would be to use Mapshaper (or ask
> someone with a proprietary tool) to simplify before uploading.
>
> Knut
> ---------- Forwarded message ----------
> From: Johan Lemarchand <johan.lemarchand@xxxxxxxxx>
> Date: Fri, May 21, 2010 at 3:15 PM
> Subject: Douglas-Peuker and Simplification Program
> To: Knut Staring <knutst@xxxxxxxxx>
>
>
> http://www.cartoweb.org/downloads/vertexsimplification/documentation.html
>
> http://groups.google.com/group/Google-Maps-API/browse_thread/thread/e5e865ddeeaa81ea?pli=1
>
>
>
> --
> Cheers,
> Knut Staring
>



-- 
Cheers,
Knut Staring