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dev:gis_arch [2008/04/23 11:17]
mifan created 		dev:gis_arch [2009/07/06 20:36] (current)
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 GIS in Sahana is implemented as core library functionality under <sahana-folder>/inc/lib_gis. Some functionality such Situation Mapping and GPS Interface are implemented as modules.  GIS in Sahana is implemented as core library functionality under <sahana-folder>/inc/lib_gis. Some functionality such Situation Mapping and GPS Interface are implemented as modules. 
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 +The functionality is easily-accessible to module developes via the [[gisapi|GIS API]]
  
 The Sahana GIS is designed with reuse and standards in mind. The Sahana GIS is designed with reuse and standards in mind.
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 ==== Overview Architecture ==== ==== Overview Architecture ====
 {{dev:gis_arch_w.png|}} {{dev:gis_arch_w.png|}}
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 +  * [[gis_infra|GIS Infrastructure Roadmap]]
 +  * [[http://www.reliefsource.org/foss/index.php/Req:gis_map|Reliefsource Wiki]]
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 +  * [[http://sahanacentral.iosn.telehealth.ph/index.php?title=Image:Tuxgis.png|IOSN Sahana-GIS ToT: Sahana GIS Architecture]]
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 +==== Requirements ====
  
 +The GIS functionality has a few requirements of the base system above a non-GIS Sahana instance:
  
 +  * [[doc:needs:english#gis_requirements|PHP configuration on Web server]]
 +  * [[doc:installunix:english#ensure_folders_writable_by_webserver|Folders writable by Web server]]
  

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