[Live-demo] Teaching Spatial Programming - Raspberry Pi

Peter Baumann p.baumann at jacobs-university.de
Thu May 31 14:23:28 PDT 2012


rasdaman might be suitable for the raster part:
- no Java (when used without petascope)
- small RAM footprint (2.5MB)
- high-level queryf language.
We have done database teaching using rasdaman, students enjoyed the mix of 
database, computational geometry, imaging.


On 05/31/2012 11:12 PM, Cameron Shorter wrote:
> Hello all,
> I've been asked whether OSGeo-Live would run on Raspberry Pi, to be used as a 
> teaching device a.
> Raspberry Pi is a $25 credit card size computer. It runs Debian and only has 
> 256 Meg of RAM. http://www.raspberrypi.org
> I've CCed the OSGeo-Live email list, as I expect there will be many on the 
> list with an interest, and probably a few opinions too.
> The challenge will be the size of RAM. Up to version 5.0, we ran OSGeo-Live 
> with 512 Meg of RAM, but with version 5.5 we discovered that some of the Java 
> applications required more RAM, and we recommend at least 768 Meg RAM, and 
> preferably 1 Gig.
> The problem will be all the java based applications, which are RAM intensive.
> You could potentially run OSGeo-Live, without invoking the java based 
> applications and there are a C based applications for most, if not all the 
> tasks you would likely to be teaching.
> You could test this be running OSGeo-Live in a Virtual Machine, and limiting 
> the size of the RAM in the Virtual Machine to 256 Meg of RAM.
> You can see approximate RAM usage, and core language for many of our 
> applications in the following spreadsheet:
> https://docs.google.com/spreadsheet/ccc?key=0Al9zh8DjmU_RdGIzd0VLLTBpQVJuNVlHMlBWSDhKLXc#gid=13 
> OSGeo-Live is based upon Xubuntu (which is a small version of Ubuntu), and I 
> note from the faq that Ubuntu is not supported by Ubuntu. That might be a 
> problem.
> What you may need to do is start with a Debian Squeeze distribution, then 
> execute the OSGeo-Live build process, probably with a few tweaks, to build a 
> custom OSGeo-Live. In this process, you might also only select applications 
> which will run within the 256 Meg limit.

Dr. Peter Baumann
  - Professor of Computer Science, Jacobs University Bremen
    mail: p.baumann at jacobs-university.de
    tel: +49-421-200-3178, fax: +49-421-200-493178
  - Executive Director, rasdaman GmbH Bremen (HRB 26793)
    www.rasdaman.com, mail: baumann at rasdaman.com
    tel: 0800-rasdaman, fax: 0800-rasdafax, mobile: +49-173-5837882
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