osgeo mashup : a practical look at 5 open source gis applications grass/qgis, gdal/ogr, postgis,...
TRANSCRIPT
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OSGeo Mashup :A practical look at 5 Open Source GIS applications
GRASS/QGIS, GDAL/OGR, POSTGIS, MAPSERVER, GMT
Presented at OSCON 2006 by Aaron Racicot – GIS Programmer, Ecotrust
[email protected] 27th, 2006
A Citizen of Salmon Nation
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GIS – Geographic Information Systems
GIS
Maps – Print / Electronic
Cartography
Spatial Data Creation/Collection
Spatial Processing
Spatial Modeling
Spatial Analysis
Reasoning with a Sense of Place
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Ecotrust - Salmon Nation
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OSGeo – Open Source Geospatial Foundation
Board of Directors
Website Committee
Fundraising Committee
Incubation Committee
Promotion and Visibility Committee
Public Geospatial Data Committee
Education and Curriculum Committee
System Administration Committee
Voting Members
General Members
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OSGeo – Open Source Geospatial Foundation
OSGeo Mission StatementTo support the development of open source geospatial software, and promote its
widespread use.
OSGeo Goals•To provide resources for foundation projects - eg. infrastructure, funding, legal. •To promote freely available geodata - free software is useless without data. •To promote the use of open source software in the geospatial industry (not just foundation software) - eg. PR, training, outreach. •To encourage the implementation of open standards and standards-based interoperability in foundation projects. •To ensure a high degree of quality in foundation projects in order to build and preserve the foundation "brand". •To make foundation and related software more accessible to end users - eg. binary "stack" builds, cross package documentation. •To provide support for the use of OSGeo software in education via curriculum development, outreach, and support. •To encourage communication and cooperation between OSGeo communities on different language (eg. Java/C/Python) and operating system (eg. Win32, Unix, MacOS) platforms. •To support use and contribution to foundation projects from the worldwide community through internationalization of software and community outreach. •To operate an annual OSGeo Conference, possibly in cooperation with related efforts (eg. EOGEO). •To award the Sol Katz award for service to the OSGeo community.
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OSGeo – Open Source Geospatial Foundation
Mapbuilder GDAL/OGR
GeoToolsGRASS
MapServer OSSIM
MapGuide Open Source
Incu
bato
r Pro
jects
Released From Incubation
Mapbender
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OSGIS Software Stacks… Desktop
Generic Stack FOSS4G Stack Grouping
Application QGis, Grass, OSSIM, JUMP, UDig
User Interface
Application Dev. Environment
Eclipse, QT, OpenGL, Tkl/Tk
High Level Utilities GeoTools, Postgresql, PostGIS
Data Serving
High Level Scripting Languages
PHP, PERL, Python
Low Level Utilities Shplib, GEOS, OGR/GDAL, R-Statistics, GMT
Data Processing
Low Level Languages
C, C++, Java, Fortran System Software
Operating System
Linux, Darwin, Cygwin
Hardware Drivers
32-64 bit processor drivers
Desktop Software Stack
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OSGIS – Desktop Applications
GRASS GIS
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OSGIS Software Stacks... ServerWeb-based Software
StackGeneric Stack FOSS4G Stack Grouping
Client Side Browser Firefox, Safari, Netscape User Interface
Client Side Scripting
Java Script, Java Applets
~~~~~~~~~~~WEB~~~~~~~~~~~
Server Side Application
Chameleon, Cartoweb3, MapGuide, Mapbender,
Mapbuilder, Custom
Data Serving
High Level Utilities Mapserver, MapGuide,
High Level Scripting Languages
PHP, PERL, Python Data Processing
Low Level Utilities Shplib, GEOS, OGR/GDAL, PostGIS, R-
Statistics, GMT
Low Level Languages
C, C++, Java, Fortran System Software
Operating System/Drivers
Linux, Darwin, Cygwin
Hardware Drivers 32-64 bit processor drivers
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OSGIS - Server Tools
GRASS GIS
GDAL/OGR
R-Statistics
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Desktop Raster/Vector Processing
GRASS/GDAL/OGR - Data Crunching Both Raster and Vector support Very powerful tool set (similar to ArcINFO/ArcGRID) Traditionally Poor GUI, but getting better Very fast Cross platform
QGIS/GDAL/OGR – Data Viewing/Editing Both Raster and Vector support Nice GUI Cross platform QGIS can integrate with GRASS
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GRASS-Raster
Grass Raster Processing
GDAL
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GRASS-Vector
OGR
Grass Vector Processing
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QGIS
QGis 0.7.4
QGis 0.8.0pre1
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Mapserver Web-Based Interface
AJAX-User Based Data Filter
GMT generate
d graphics
Spatially constrain
ed queries
and scenarios
Chameleon
Mapserver
framework
PostGIS Spatial Data
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Now what….
How is this useful to you???????
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Personal Use….
Thanks to Dylan Beaudette : http://casoilresource.lawr.ucdavis.edu/drupal/node/244
Navigating Wilderness Areas with GRASS Cla
ssifi
catio
n
Cost S
urfa
ce
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Creating Data….Digitizing, Modifying, extracting…
Context Layer Viewing
Create new shapes
Create new attributes
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Transforming Data….How to get coordinates in UTM to Geo-NAD83?
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Web enable standard geo-data….
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Web enable non-standard geo-data….
How to display and interact with model data?
GIS Model Results
Web Based Real-Time GIS
Model
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Spatially enable your database….How to select data within a polygon area?
Intersects Geometry Definition
Distance(geometry, geometry)Equals(geometry, geometry)Disjoint(geometry, geometry)Intersects(geometry, geometry)Touches(geometry, geometry)Crosses(geometry, geometry)Within(geometry A, geometry B)Overlaps(geometry, geometry)Contains(geometry A, geometry B)Intersects(geometry, geometry)Relate(geometry, geometry, intersectionPatternMatrix)Relate(geometry, geometry)
Centroid(geometry)Area(geometry)Length(geometry)PointOnSurface(geometry)Boundary(geometry)Buffer(geometry, double, [integer])ConvexHull(geometry)Intersection(geometry, geometry)SymDifference(geometry A, geometry B)Difference(geometry A, geometry B)GeomUnion(geometry, geometry)GeomUnion(geometry set)MemGeomUnion(geometry set)
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Display unique data….How can I plot geospatial and model data?
#!/bin/csh## GMT Example 24 $Id: job24.csh,v 1.5 2006/05/08 01:35:12 ## Purpose: Extract subsets of data based on geospatial criteria# GMT progs: gmtselect, pscoast, psxy, minmax# Unix progs: echo, cat, awk## Highlight oceanic earthquakes within 3000 km of Hobart and > 1000 kmecho "147:13 -42:48 3000 Hobart" >! point.dcat << EOF >! dateline.d> Our proxy for the dateline180 0180 -90EOFset R = `minmax -I10 oz_quakes.d`pscoast $R -JM9i -K -Gtan -Sdarkblue -Wthin,white -Dl -A500 -Ba20f10g10WeSn \
-U"Example 24 in Cookbook" >! example_24.pspsxy -R -J -O -K oz_quakes.d -Sc0.05i -Gred >> example_24.psgmtselect oz_quakes.d -L1000/dateline.d -Nk/s -C3000/point.d -fg -R -Il \
| psxy -R -JM -O -K -Sc0.05i -Ggreen >> example_24.psawk '{print $1, $2, 0, $3, $3}' point.d | psxy -R -J -O -K -SE -Wfat,white >> example_24.psawk '{print $1, $2, 14, 0, 1, "LT", $4}' point.d \
| pstext -R -J -O -K -Gwhite -D0.1i/-0.1i >> example_24.pspsxy -R -J -O -K point.d -Wfat,white -Sx0.2i >> example_24.pspsxy -R -J -O -M dateline.d -Wfat,white -A >> example_24.ps\rm -f point.d dateline.d .gmt* The Generic Mapping Tools
http://gmt.soest.hawaii.edu/
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Where is Ecotrust going…DST’s
Web User Request
Web User Response
StaticData Storage
WebService
sData Gathering
Data Formatting
Data Processing
Map Formatting
Map Production
The Problem Is The Arrows! Connecting a web request to server side GIS analysis is tricky
Real-Time Web Decision Support Tools
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DST using GRASS/MapserverSiuslaw Watershed Restoration Initiative
Data Gathering
Data Formatting
Data Processing
PHP Mapscript
GRASS
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Where to go for more infoEcotrust
http://www.ecotrust.orgOSGeo
http://www.osgeo.orgOSGIS
Maptools - http://www.maptools.org FreeGIS - http://freegis.org/ Open Source GIS - http://opensourcegis.org/
Standards OGC - http://www.opengeospatial.org/
Desktop GRASS - http://grass.itc.it/ QGIS - http://qgis.org/ UDIG - http://udig.refractions.net/confluence/display/UDIG/Home JUMP – http://jump-project.org/ OSSIM - http://www.ossim.org/Welcome.html OpenEV - http://openev.sourceforge.net/
Server/Web Mapserver - http://mapserver.gis.umn.edu/ MapBender - http://www.mapbender.org MapBuilder - http://docs.codehaus.org/display/MAP/Home MapGuide OS - https://mapguide.osgeo.org/
Tools PostGIS - http://postgis.refractions.net/ Remote Sensing - http://remotesensing.org/tiki-index.php GDAL/OGR - http://gdal.maptools.org/index.html PROJ.4 - http://proj.maptools.org/ R-Statistics - http://www.r-project.org/ GMT - http://gmt.soest.hawaii.edu/