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I/O to GIS (Read 1084 times)
Naz
I/O to GIS
Nov 30th, 2007, 12:39pm  
Hi,

Am wondering if processing has any methods for import and export files and images from GIS (Geographic Information Systems). Is there any way to read images made in GIS?

Any comments?

Thanks
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eskimoblood
Re: I/O to GIS
Reply #1 - Nov 30th, 2007, 2:32pm  
I've build an applet which loads images from an umn mapserver and handle requests/respons with the mapserver. This is the easiest way, I think, to get GIS data, like shape files in to processing. All the GIS stuff is handle by the mapserver and only the displaying stuff is done by processing. There are some libraries written in JAVA to handle GIS files but I've never try this in processing.
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Andreas Köberle {eskimoblood}
222550793  
Naz
Re: I/O to GIS
Reply #2 - Nov 30th, 2007, 2:56pm  
We'll look into it. Thanks
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davbol
Re: I/O to GIS
Reply #3 - Nov 30th, 2007, 5:00pm  
You can use something like this is you want "raw" access to GIS data:
http://sourceforge.net/projects/geotools/

But like eskimoblood says, it's cleaner to work with a server of some sort.  I've built Java clients for ESRI's ArcIMS and it's really pretty simple:  send an xml request, receive an xml response containing the url to an image of the map as requested, download and show that image, done.  For really fancy full-featured clients the xml parsing can get pretty tedious, but i wouldn't call it "difficult".  ArcIMS is "nice" (as compared to MS TerraServer and Google Maps, for example) in that you can get back a single non-tiled map image for any scale/extent.
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WWW  
eskimoblood
Re: I/O to GIS
Reply #4 - Nov 30th, 2007, 8:16pm  
davbol wrote on Nov 30th, 2007, 5:00pm:
You can use something like this is you want "raw" access to GIS data:
http://sourceforge.net/projects/geotools/

ArcIMS is "nice" (as compared to MS TerraServer and Google Maps, for example) in that you can get back a single non-tiled map image for any scale/extent.


Yes ArcIMS is really nice and easy to use, especially the xml stuff, UMN Mapserver need to communicate via POST/GET BUT ArcIMS isn't that cheap instead of UMN Mapserver which comes for free.
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Andreas Köberle {eskimoblood}
222550793  
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