[Live-demo] What dataset should your application use on the LiveDVD?

Cameron Shorter cameron.shorter at gmail.com
Tue Jun 15 17:11:04 EDT 2010


Ok, based upon advice from this thread, I've created an 
"install_gisdata.sh" script, which downloads the following naturalearth 
datasets:

# Poly: Admin 0 - Countries 1:110m
# Point: Populated Places (simple, less columns) 1:110m
# Poly: Land 1:110m
# Poly: Ocean 1:110m
# Poly: Lakes + Reservoirs 1:110m
# Line: Rivers, Lake Ceterlines 1:110m
# Raster: Cross Blended Hypso with Shaded Relief and Water 1:50m

Hamish, I've copied the installing of the Barcelona.osm dataset from 
install_osm.sh, except instead of calling it barcelona.osm, I'm calling 
the dataset highlightedcity.osm
The reason for this is that I'm wanting to ensure that we can change the 
dataset year to year without effecting application examples which use 
the dataset.
Is this realistic? Can applications determine the area of interest from 
an OSM file?

Hamish, could you please review this script, and if you are happy with 
it, remove the corresponding lines from install_osm.sh

Massimo,
I think we will want to include a number of the datasets that you have 
mentioned for Barcellona.
Could you please copy across a minimal set of script lines for 
installing Barcelona data from your scripts. (This may be all of the 
datasets?)
We will also need to clearly specify the licence for your datasets 
(which I assume is Creative Commons, or some other Open type licence). 
We will create a Description and Overview documentation page for our 
data, which will include a description and licence.

On 13/06/10 13:28, Hamish wrote:
> Alex wrote:
>    
>> I think 2 datasets make sense:
>> 1 World level - NaturalEarthData, etc. (I personally like the Cross
>> Blended Hypsometric Tints raster where the color isn't purely elevation)
>> ( A layer of OSGeo Chapters would be nice too, and maybe points for
>> previous Foss4G)
>>
>> 2 local - As we discussed previously every year we could rebuild the
>> same type of data for the location of foss4g, in this case Barcellona
>> Landsat, SRTM/DEM, OSM, KML of conference hotel, etc.
>>      
> I like this idea- it lets the conference DVD be flavoured to the home
> city, which is nice, and also maintains some stability for the long term
> edu material / tutorials as well.
>
> - long term edu material can use the stable 'standard dataset'
> - conference workshops (which will generally be one-offs anyway) will
>    either use the city local dataset, the long term one, or whatever
>    they want to do on their own.
>
> I like that we provide the delegates with local street maps, a waypoint
> for the conference centre etc. Most of them are in a strange city after
> all and the least we can do is be their local guide.
>
>
>    
>> Format wise we should make sure we have at minimum:
>> 1 Geotiff
>> 1 Shapefile
>> 1 KML
>>      
> (based on above geotiff/shapefile?)
>
>    
>> 1 OSM file
>>      
> (downloaded for home city, see install_osm.sh; just update the bbox)
>
>    
>> 1 Postgis Layer (Can be imports of above data)
>>      
> can generate from osm2pgsql / shp2pgsql as step 1 of a tutorial
>
>    
>> 1 Spatialite (Can be imports of above data)
>>      
> assume it has similar import tools as postgis?
>
>    
>> 1 JPEG (Mapnik tile?)
>>      
> as non-georeferenced aerial imagery? or a scan of a paper map? or?
>
> wrt Mapnik, do not provide in "Google's Mercator" for geodata. That is
> only valid for visual use&  is not appropriate for GIS work. It is
> distorted and bogus and unfortunately now widely used by copycats.
> The main thing it has going for it is that it saves cpu cycles for
> those running massive server farms with big power bills.
>
>    
>> 1 WMS (Can be imports of above data)
>>      
> use MapTiler or gdal2tiles.py from above GeoTiff to help set that up?
> (bonus is nice OpenLayers TMS ta boot)
>
>    
>> 1 WFS (Can be imports of above data)
>>      
> shapefile should be easy, anyone done this with OSM ->  PostGIS?
>
>
> Hamish
>
>
>
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>    


-- 
Cameron Shorter
Geospatial Director
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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