GIS Software - PDF by tre72542

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									    GIS Software

Review of Open-Source GIS
       Applications    Lance I. Case, GISP
                       IT/GIS Support Specialist

                       Huber Resources Corp
                       Old Town, ME 04468
                       Web: www.huberresources.com

                       Michael Smith
                       State GIS Manager
                       Maine Office of GIS
                 Agenda
•   Free vs. Open Source
•   MapWindow
•   QGIS
•   fGIS
•   Others: gvSIG, AccuGlobe
•   Q&A
A Review of Open-Source GIS Tools


Free Software vs. Open-Source Software
 •     ‘Free’ typically means available at no financial cost, but can still
       be proprietary (Google Earth, ArcGIS Explorer)
 •     ‘Open Source’ typically means that the user can acquire and
       alter the source code, and redistribute their changes. Typically
       this is achieved within the license agreement, such as the Gnu
       Public License (GPL). Open-source software is typically free,
       but does not have to be.
A Review of Open-Source GIS Tools


Sample List of Free (but proprietary) GIS Software
 •     Google Earth
 •     ArcExplorer
 •     ArcGIS Explorer


 Not to be covered in this talk – Google Earth previously covered
     (thanks Chris!)
A Review of Open-Source GIS Tools


Sample List of Open-Source GIS Software

       •      MapServer/MS4W          •   MapWindow
       •      PostGIS                 •   QGIS
       •      MySQL Spatial           •   Thuban
       •      GeoServer               •   GeoTools
       •      deegree/iGeoPortal      •   GRASS (yes it’s still
                                          around!)
       •      GeoNetwork
                                      •   FWTools/GDAL/OGR
       •      OpenLayers
                                      •   GIMP
       •      GVSig
                                      •   ImageMagick
       •      uDig
       The Open GIS Consortium (OGC) develops standards for open geospatial
           software, and certifies software as OGC-compliant
A Review of Open-Source GIS Tools


MapWindow
 Easy-to-use desktop software for WINDOWS only
 •     Support for shapefiles, SID, JPEG2000 and most other formats
 •     Simple editing capability
 •     Built-in support for enterprise database (PostGIS)
 •     Geoprocessing includes clip, buffer, reproject, resample, georeference
 •     Scripting support VB.NET or C#, also OCX can be embedded in other
       applications
 •     Metadata manager
 •     BUG in WMS support though – problem with raster data
 •     Print setup a bit quirky
 •     Edit large files is pretty slow
A Review of Open-Source GIS Tools


MapWindow Editing
                                    Editing tools




                                                      Vertices in Red




                     Table editor




                                          Editing of shapefiles > 5000 features
                                                    can be very slow
A Review of Open-Source GIS Tools


MapWindow Printing
                MapWindow
•   Easy to install
•   User interface is intuitive
•   Attribute editing is easy
•   Spatial editing not so easy
A Review of Open-Source GIS Tools


QGIS (Quantum GIS)
 Easy-to-use desktop software for multiple platforms – Mac too!
 •     Less functionality than MapWindow, but more solidly built
 •     Multi-platform support a big plus
 •     Support for shapefiles, SID, JPEG2000 and most other formats
 •     Built-in support for enterprise database (PostGIS)
 •     Editing capabilities
 •     GPS support
 •     Tricky install
A Review of Open-Source GIS Tools


QGIS Editing


             Editing tools
                                    Vertices in White




                     Table editor




                                     Fast editing
A Review of Open-Source GIS Tools


QGIS Printing
                    QGIS
•   Not too difficult to install
•   Similar user interface to other GIS apps
•   Could not load MrSID file
•   WMS loaded but did not render correctly
•   Could not start GPSBabel
                  fGIS
• Forestry GIS – designed for natural
  resource managers at Wisconsin DNR
      • Wicked easy to install & use,
         in WINDOS only
        • Supports most common vector and
           raster data formats
           • Free version no longer supported
           • Sold as TatukGIS Editor
             AccuGlobe
• Easy to install and use on WINDOS only
• Supports common vector and raster
  formats
• Easy to edit vector data
• Map layout is more robust
         GIS App Summary
• Support most common vector and raster
  data
• Allow creating & editing of vector data
• Map production should be robust
• User interface should be intuitive
          Websites

•   MapWindow: http://www.mapwindow.org/
•   QGIS: http://www.qgis.org/
•   fGIS: http://www.forestpal.com/fgis.html
•   gvSIG: http://www.gvsig.gva.es/ (select English)
•   AccuGlobe: http://www.accuglobe.net/
Questions and Answers

								
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