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Re: Open Source GIS System

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have you had a chance to look at University of Minn Mapping Server?
http://www.esri.com/software/arcgis/arcgismobile/index.html

M--
----- Original Message ----- 
Wrom: OQKEDOTWFAOBUZXUWLSZLKBRNVW
To: <pgsql-general@xxxxxxxxxxxxxx>
Sent: Thursday, November 08, 2007 3:14 PM
Subject:  Open Source GIS System


> Hi,
> 
> 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
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 5: don't forget to increase your free space map settings
> 

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
       match

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