[Live-demo] What dataset should your application use on the LiveDVD?
Cameron Shorter
cameron.shorter at gmail.com
Thu Jun 10 18:03:09 PDT 2010
As we are running into physical size limits of the LiveDVD, and as we
wish to provide a level of consistency across applications, the next
OSGeo Live DVD will include a common dataset which we will encourage all
applications to make use of.
For this coming release, we will not mandate use of the common dataset,
but we encourage projects to use it if they can. (We will likely be
mandating projects to use the common dataset in future releases)
So our next question is "What dataset should we use?".
* The dataset needs to be reasonably timeless - (we don't want to ask
projects repackage new datasets every year)
* We want to cover a representative set of layers.
* We want the datasets to be able to be made to look "sexy".
* We want to keep the size of the datasets to a minimum.
* The data needs to be available with a suitable open licence.
Unless someone suggests a better source, we will be using the data from:
http://www.naturalearthdata.com/downloads/
Which layers would be suitable for projects?
I suggest:
1:50m Cultural layer
Admin (countries & states) polygons
Populated places - points
http://www.naturalearthdata.com/downloads/50m-cultural-vectors/
21 Meg uncompressed (less if we trim)
1:50m River and Lake Centerlines - lines
http://www.naturalearthdata.com/downloads/50m-physical-vectors/
~ 400K uncompressed
1:50m Natural Earth 1 with shaded relief and water, raster:
http://www.naturalearthdata.com/downloads/50m-raster-data/50m-natural-earth-1/
171 Meg uncompressed
--
Cameron Shorter
Geospatial Solutions Manager
Tel: +61 (0)2 8570 5050
Mob: +61 (0)419 142 254
Think Globally, Fix Locally
Geospatial Solutions enhanced with Open Standards and Open Source
http://www.lisasoft.com
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