Thin Clients - WALIS

obtainablerabbiData Management

Jan 31, 2013 (4 years and 8 months ago)

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Open Source Geospatial
Ready for Prime Time
Mark Leslie
LISAsoft
www.lisasoft.com
14 March 2008Open Source Geospatial2
Open Source
•Confusion: Open Source == Free ?
–Libre vs. Gratis
•Freely distributed, modified, extended
–Accompanied by source code
•Licenses that encourage growth in
communities
•Licenses that reduce dependence
on a single organisation
14 March 2008Open Source Geospatial3
ESRI SDI
Architecture
14 March 2008Open Source Geospatial4
Open Source SDI
Architecture
14 March 2008Open Source Geospatial5
Database
•PostGIS
•MySQL Spatial
Extensions
PostGIS
DataStores
PostGIS
14 March 2008Open Source Geospatial6
PostGIS
•Simple Features for SQL
compliant
•Advanced geometric
indexing
•Basic topology and curved
geometry
•Widely supported by clients
and servers
Spatial Extensions for PostgreSQL
•Released by Refractions Research in 2001
•Simple Features for SQL compliant
14 March 2008Open Source Geospatial7
MySQL Spatial
Extensions
•Released in MySQL
4.1 in 2003
•Supports geometric
index on default
storage engine
•Range of analytical
functionality
•Relational operators
support BBox only
14 March 2008Open Source Geospatial8
Web Services
•GeoServer
•MapServer
•MapGuide OS
•TileCache
•deegree
Web Services
GeoServer
14 March 2008Open Source Geospatial9
GeoServer
•WMS, WFS-T, WCS
compliant
•Very strong documentation
•User friendly
administrative web
interface
Fully featured J2EE geospatial data server
•Started in 1999 by TOPP
•OGC Reference Implementation for WFS
14 March 2008Open Source Geospatial10
UMN MapServer
High speed map renderer and
server
•Developed by UMN ForNet
project in 1997
•WMS, WFS, WCS, SOS
service
•Thematic mapping using
logical/regex classes
•Advanced labelling engine
14 March 2008Open Source Geospatial11
MapGuide Open
Source
Web based geospatial
service platform
•Released by AutoDesk in 2005
•Includes Fusion
development framework
•Highly scalable design
•Connection-oriented, role-
based security
14 March 2008Open Source Geospatial12
deegree web
services
•Most comprehensive
implementation of OGC
standards in an open source
framework
•Extremely modular and
highly decoupled
•OGC reference
implementation for WMS
and WCS
•WMS, WCS, WFS and
security modules
14 March 2008Open Source Geospatial13
TileCache
•Developed by MetaCarta in
2006
•Highly scalable, high speed
•Can be a dynamic cache, or
pre-cached
•Supports WMS-C and TMS
specifications
•Pluggable rendering
backends
•Pluggable caching
mechanisms
14 March 2008Open Source Geospatial14
Thick Clients
•JUMP/OpenJUMP
•GRASS
•QGIS
•gvSig
•uDig
Thick Clients
GRASSQGIS
uDig
14 March 2008Open Source Geospatial15
JUMP/OpenJUMP
•Released by Vivid in 2002
•Written as a GUI for data integration
algorithms
•OpenJUMP forked in 2004
•Advanced analytical and data integration
capabilities available as plugins
•Memory resident feature processing
14 March 2008Open Source Geospatial16
14 March 2008Open Source Geospatial17
GRASS
•Started by the US Army in 1982 as a
raster analysis system
•Now includes vector analysis capabilities
•Powerful command line interface
•Input: GDAL, OGR, PostGIS
14 March 2008Open Source Geospatial18
14 March 2008Open Source Geospatial19
QGIS
Quantum GIS
•Initially a small PostGIS viewer in 2002
•Rapidly grew to a fully featured GIS app
•GPS Integration
•Print composer
•Digitising tools
•Spatial bookmarks
14 March 2008Open Source Geospatial20
14 March 2008Open Source Geospatial21
gvSig
•Developed for CIT of Valencia in 2003
•Goal of moving the CIT to open source
•The goals of the tender were:
–Portability
–Modularity
–Open Code
–License Free
–Interoperable
–Subject to
Standards
14 March 2008Open Source Geospatial22
14 March 2008Open Source Geospatial23
uDig
User-friendly Desktop Internet GIS
•Developed by Refractions Research
•Designed as an internet based client
•Full streaming rendering and processing
•Highly extensible plugin architecture
•Mature feature manipulation tools
14 March 2008Open Source Geospatial24
14 March 2008Open Source Geospatial25
Metadata Catalogue
•GeoNetwork Open
Source
•deegree
Metadata Catalogue
14 March 2008Open Source Geospatial26
GeoNetwork
•Started in 2003 by FAO
•Portal/catalogue
components of SDI 1.0
•Manage and public
metadata
•Supports multiple
metadata standards
•New standard supported
by XSLT transform
•Robust user/group
security model
14 March 2008Open Source Geospatial27
deegree catalogue
CSW module of the deegree
SDI framework
•Supports ISO 19115/19119
metadata standards
•Uses XSLT processing to
transform
requests/responses to
desired format
•Leverages WFS service
for data source
14 March 2008Open Source Geospatial28
Thin Clients
•OpenLayers
•MapBuilder
•Mapbender
Thin Clients
OpenLayers
MapBuilder
14 March 2008Open Source Geospatial29
Mobile
•gvSig
•GRASS
Mobile Clients
GRASS
14 March 2008Open Source Geospatial30
Open Source SDI
Architecture
Questions?
Mark Leslie
mark.leslie@lisasoft.com