[postgis-users] Open Source GIS System

Milo van der Linden mlinden at zeelandnet.nl
Thu Nov 8 12:13:32 PST 2007


Matthew Pulis schreef:
> Hi,
Hello Matthew, it seems that from all the GIS functions you chose to 
pick the most complex one, routing! Never the less, please also look at 
wiki.OpenStreetMap.org some of the guys there are also experimenting 
with setting up routing on the Open GeoData that OpenStreetMap provides:

http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/routing to sign 
up to their list

One of their sample programs is navipowm, this might give you a good 
headstart: http://sourceforge.net/projects/navipowm


>
> I am preparing to build up a GIS system as part of my University 
> Masters Thesis. My final aim is to build a system where the user 
> inputs (or via GPS) 
> inputs the location where he is and the location where he want to go and gets the route planned. My main concern will be that the driver can decide which route to take, if the shortest 
> distance, least time consuming or else least fuel consumption. Also 
> the route planned has to be aware of certain problems that the network 
> can find, for example road blocks, or some other type of incidents / 
> accidents. May I point out that I need to use only Open Source Software.
>
> I am think to use this algorithm to work with :
> 1. User inputs starting and ending
> 2. A script checks the options sent by the user
> 3. The streets which are "blocked" by something are mentioned as inactive
> 4. A route is planned
> 5. The route is sent as an image to user
> 6. Wait 20 seconds
> 7. If start = end goto 10 Else :
> 8. Reread position (maybe using GPS.. or random new coordinates from 
> the map)
> 9. Go back to step 3
> 10. Send a msg : Thanks for driving safely or some other msg :)
>
>
> Now, from the research I have done, it seems I need these Open Source 
> software, and this is what I got the presumption they will suffice for :
>
> PostgreSQL + PostGIS : Basically where to store the data
> GRASS : For data Management
> QGis (with GRASS extension) : Frontend for viewing the data
> pgRouting : To create the route
> OpenLayers : To create the image to be sent to the user's browser. I 
> want a static image which then will be updated every lets say 20 seconds.
> PHP : To write the scripts to communicate with the PostGIS / User + 
> HTML 4.0
>
> What do you think about my setup please? Is there some software you 
> think I should replace or rethink about using? Following my algorithm 
> and the software I am looking at, I think that I need to do like this :
> a. A script in PHP which captures the data and then echo the image 
> using OpenLayers to the user's browser
> b. QGIS (with the save file of the base-map and the roads marked) 
> which allows the Road Network Admin 
> to disable any Road, and another PHP Script that can read the starting, ending coordinates of the road and allow a User to report that there are problems in the road. 
>
>
> Any comments / suggestions / change of plans would be extremely 
> appreciated at this stage,
>
> Whilst thanking all of you for taking time to read this post, I really 
> wish to hear your opinions.
>
> Thanks and Regards
>
> Matthew
> -- 
> Matthew Pulis
> URL : http://www.solutions-lab.net
> MSN : pulis_matthew[@]hotmail.com
> ICQ : 145951110
> Skype : solutions-lab.net <http://solutions-lab.net>
> ------------------------------------------------------------------------
>
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-- 


	

Milo van der Linden
skype: milovanderlinden <skype:milovanderlinden?add>
mlinden at zeelandnet.nl <mailto:mlinden at zeelandnet.nl>
milovanderlinden at gmail.com <mailto:milovanderlinden at gmail.com>
milo at 3dsite.nl <mailto:milo at 3dsite.nl>
http://www.3dsite.nl

	  	

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