Carson J. Q. Farmer National Centre for Geocomputation National University of Ireland Maynooth

Transcription

1 introduction to open source geospatial software Carson J. Q. Farmer National Centre for Geocomputation National University of Ireland Maynooth

2 Outline from the source what is open source? what are open standards? working with open source why all the fuss?

3 from the source... Get right down to the source... Source code Collection of statements or declarations written in some human-readable computer programming language Source code = Instructions Compare to recipe...

4 from the source... Convert from human-readable to computer-executable form Compiler Compare to mixing bowl? Execute the program... Compare to oven?

5 from the source... So what can you do with source code? Fix bugs (problems) Change the program Compile your own version Figure out how the program works Basically do whatever you want...

6 from the source... If you have access, and the right to use it...

7 what is open source? Open source doesn t just mean access to the source code

8 what is open source? Source code Relaxed copyright restrictions Use for any purpose Share Free...

9 what is open source? free as in freedom not as in free beer

10 what is open source? Improve software Fix bugs Add new features Create something new

11 what is open source?

12 what is open source? 'Open Source' 'Free Software' Free redistribution Use for any purpose Source code Study and change Derived works Copy the program No tie-ins Share the program

13 what is open source? 'Open Source' Licensing 'Free Software' Freedoms

14 what is open source? Licenses 'copyleft' M.I.T. License 'all rights reversed' Apache License Public Domain BSD, Modified BSD Mozilla Public License GNU General Public License

15 what is open source? Access to code! Distribute! Read Share Learn Fix Improve Improve

16 what is open source? Different from proprietary software Legal property of one party... Not you... You are only licensing the software...

17 what is open source? Not all about licensing and legal issues...

18 what is open source? community open communication......like science......transparency

19 what are open standards? Collecting data is only the first step towards wisdom......but sharing data is the first step towards community Prof. Henry Louise Gates, Jr.

20 what are open standards? who holds the key to your data? access your own data and information Open file formats Open communication standards

21 what are open standards? Proprietary standards Open standards Also applies to communication

22 what are open standards? Just like open source But applies to much more than software... ISO has been doing this for years! It means everyone knows how to share

23 what are open standards? What about geospatial data/communication?

24 what are open standards? Open Geospatial Consortium non-profit, international, voluntary consensus standards organisation OGC Open Geospatial Consortium, Inc. ontology... coordinate transformations... sensors... markup languages... simple features

25 what are open standards? Catalogue Service, CityGML, Coordinate Transformation, Filter Encoding, Geographic Objects, Geography Markup Language, Geospatial extensible Access Control Markup Language (GeoXACML), GML in JPEG 2000, Grid Coverage Service, KML, Location Services (OpenLS), Observations and Measurements, Sensor Model Language, Sensor Observation Service, Sensor Planning Service, Simple Features, Simple Features CORBA, Simple Features OLE/COM, Simple Features SQL, Styled Layer Descriptor, Symbology Encoding, Transducer Markup Language, Web Coverage Service, Web Feature Service, Web Map Context, Web Map Service, Web Processing Services... BAE Systems, ERDAS, GeoVirtual, Lockheed Martin, US Geological Survey (USGS), US National Aeronautics and Space Administration (NASA), US National Geospatial-Intelligence Agency (NGA), Autodesk, Bentley Systems, ESRI, GeoConnections, Google, Intergraph, Microsoft Corporation, Oracle, Rolta India, US Department of Homeland Security (DHS), PCI Geomatics, Defence Geospatial Information Working Group (DGIWG), Defence Science & Technology Laboratory, Department of Defence, EADS Defence & Communications Systems, ESRI Canada, ESTI MAP Ltd., Eurocontrol, European Environment Agency (EEA), European Space Agency (ESA), European Union Satellite Centre, FAA System Operations, Fraunhofer-Gesellschaft, Galdos Systems, Geoscience Australia, Hitachi Central Research Laboratory, MIT Lincoln Laboratory, Ordnance Survey, PB MapInfo, Shell International Exploration, US Army TEC (Topographic Engineering Center), US Census Bureau, US Environmental Protection Agency (EPA), US National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center...

26 what are open standards? Catalogue Service, CityGML, Coordinate Transformation, Filter Encoding, Geographic Objects, Geography Markup Language, Geospatial extensible Access Control Markup Language (GeoXACML), GML in JPEG 2000, Grid Coverage Service, KML, Location Services (OpenLS), Observations and Measurements, Sensor Model Language, Sensor Observation Service, Sensor Planning Service, Simple Features, Simple Features CORBA, Simple Features OLE/COM, Simple Features SQL, Styled Layer Descriptor, Symbology Encoding, Transducer Markup Language, Web Coverage Service, Web Feature Service, Web Map Context, Web Map Service, Web Processing Services... BAE Systems, ERDAS, GeoVirtual, Lockheed Martin, US Geological Survey (USGS), US National Aeronautics and Space Administration (NASA), US National Geospatial-Intelligence Agency (NGA), Autodesk, Bentley Systems, ESRI, GeoConnections, Google, Intergraph, Microsoft Corporation, Oracle, Rolta India, US Department of Homeland Security (DHS), PCI Geomatics, Defence Geospatial Information Working Group (DGIWG), Defence Science & Technology Laboratory, Department of Defence, EADS Defence & Communications Systems, ESRI Canada, ESTI MAP Ltd., Eurocontrol, European Environment Agency (EEA), European Space Agency (ESA), European Union Satellite Centre, FAA System Operations, Fraunhofer-Gesellschaft, Galdos Systems, Geoscience Australia, Hitachi Central Research Laboratory, MIT Lincoln Laboratory, Ordnance Survey, PB MapInfo, Shell International Exploration, US Army TEC (Topographic Engineering Center), US Census Bureau, US Environmental Protection Agency (EPA), US National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center...

27 what are open standards? Catalogue Service, CityGML, Coordinate Transformation, Filter Encoding, Geographic Objects, Geography Markup Language, Geospatial extensible Access Control Markup Language (GeoXACML), GML in JPEG 2000, Grid Coverage Service, KML, Location Services (OpenLS), Observations and Measurements, Sensor Model Language, Sensor Observation Service, Sensor Planning Service, Simple Features, Simple Features CORBA, Simple Features OLE/COM, Simple Features SQL, Styled Layer Descriptor, Symbology Encoding, Transducer Markup Language, Web Coverage Service, Web Feature Service, Web Map Context, Web Map Service, Web Processing Services... BAE Systems, ERDAS, GeoVirtual, Lockheed Martin, US Geological Survey (USGS), US National Aeronautics and Space Administration (NASA), US National Geospatial-Intelligence Agency (NGA), Autodesk, Bentley Systems, ESRI, GeoConnections, Google, Intergraph, Microsoft Corporation, Oracle, Rolta India, US Department of Homeland Security (DHS), PCI Geomatics, Defence Geospatial Information Working Group (DGIWG), Defence Science & Technology Laboratory, Department of Defence, EADS Defence & Communications Systems, ESRI Canada, ESTI MAP Ltd., Eurocontrol, European Environment Agency (EEA), European Space Agency (ESA), European Union Satellite Centre, FAA System Operations, Fraunhofer-Gesellschaft, Galdos Systems, Geoscience Australia, Hitachi Central Research Laboratory, MIT Lincoln Laboratory, Ordnance Survey, PB MapInfo, Shell International Exploration, US Army TEC (Topographic Engineering Center), US Census Bureau, US Environmental Protection Agency (EPA), US National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center...

28 what are open standards? Catalogue Service, CityGML, Coordinate Transformation, Filter Encoding, Geographic Objects, Geography Markup Language, Geospatial extensible Access Control Markup Language (GeoXACML), GML in JPEG 2000, Grid Coverage Service, KML, Location Services (OpenLS), Observations and Measurements, Sensor Model Language, Sensor Observation Service, Sensor Planning Service, Simple Features, Simple Features CORBA, Simple Features OLE/COM, Simple Features SQL, Styled Layer Descriptor, Symbology Encoding, Transducer Markup Language, Web Coverage Service, Web Feature Service, Web Map Context, Web Map Service, Web Processing Services... BAE Systems, ERDAS, GeoVirtual, Lockheed Martin, US Geological Survey (USGS), US National Aeronautics and Space Administration (NASA), US National Geospatial-Intelligence Agency (NGA), Autodesk, Bentley Systems, ESRI, GeoConnections, Google, Intergraph, Microsoft Corporation, Oracle, Rolta India, US Department of Homeland Security (DHS), PCI Geomatics, Defence Geospatial Information Working Group (DGIWG), Defence Science & Technology Laboratory, Department of Defence, EADS Defence & Communications Systems, ESRI Canada, ESTI MAP Ltd., Eurocontrol, European Environment Agency (EEA), European Space Agency (ESA), European Union Satellite Centre, FAA System Operations, Fraunhofer-Gesellschaft, Galdos Systems, Geoscience Australia, Hitachi Central Research Laboratory, MIT Lincoln Laboratory, Ordnance Survey, PB MapInfo, Shell International Exploration, US Army TEC (Topographic Engineering Center), US Census Bureau, US Environmental Protection Agency (EPA), US National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center...

29 what are open standards? Catalogue Service, CityGML, Coordinate Transformation, Filter Encoding, Geographic Objects, Geography Markup Language, Geospatial extensible Access Control Markup Language (GeoXACML), GML in JPEG 2000, Grid Coverage Service, KML, Location Services (OpenLS), Observations and Measurements, Sensor Model Language, Sensor Observation Service, Sensor Planning Service, Simple Features, Simple Features CORBA, Simple Features OLE/COM, Simple Features SQL, Styled Layer Descriptor, Symbology Encoding, Transducer Markup Language, Web Coverage Service, Web Feature Service, Web Map Context, Web Map Service, Web Processing Services... BAE Systems, ERDAS, GeoVirtual, Lockheed Martin, US Geological Survey (USGS), US National Aeronautics and Space Administration (NASA), US National Geospatial-Intelligence Agency (NGA), Autodesk, Bentley Systems, ESRI, GeoConnections, Google, Intergraph, Microsoft Corporation, Oracle, Rolta India, US Department of Homeland Security (DHS), PCI Geomatics, Defence Geospatial Information Working Group (DGIWG), Defence Science & Technology Laboratory, Department of Defence, EADS Defence & Communications Systems, ESRI Canada, ESTI MAP Ltd., Eurocontrol, European Environment Agency (EEA), European Space Agency (ESA), European Union Satellite Centre, FAA System Operations, Fraunhofer-Gesellschaft, Galdos Systems, Geoscience Australia, Hitachi Central Research Laboratory, MIT Lincoln Laboratory, Ordnance Survey, PB MapInfo, Shell International Exploration, US Army TEC (Topographic Engineering Center), US Census Bureau, US Environmental Protection Agency (EPA), US National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center...

30 what are open standards? Catalogue Service, CityGML, Coordinate Transformation, Filter Encoding, Geographic Objects, Geography Markup Language, Geospatial extensible Access Control Markup Language (GeoXACML), GML in JPEG 2000, Grid Coverage Service, KML, Location Services (OpenLS), Observations and Measurements, Sensor Model Language, Sensor Observation Service, Sensor Planning Service, Simple Features, Simple Features CORBA, Simple Features OLE/COM, Simple Features SQL, Styled Layer Descriptor, Symbology Encoding, Transducer Markup Language, Web Coverage Service, Web Feature Service, Web Map Context, Web Map Service, Web Processing Services... BAE Systems, ERDAS, GeoVirtual, Lockheed Martin, US Geological Survey (USGS), US National Aeronautics and Space Administration (NASA), US National Geospatial-Intelligence Agency (NGA), Autodesk, Bentley Systems, ESRI, GeoConnections, Google, Intergraph, Microsoft Corporation, Oracle, Rolta India, US Department of Homeland Security (DHS), PCI Geomatics, Defence Geospatial Information Working Group (DGIWG), Defence Science & Technology Laboratory, Department of Defence, EADS Defence & Communications Systems, ESRI Canada, ESTI MAP Ltd., Eurocontrol, European Environment Agency (EEA), European Space Agency (ESA), European Union Satellite Centre, FAA System Operations, Fraunhofer-Gesellschaft, Galdos Systems, Geoscience Australia, Hitachi Central Research Laboratory, MIT Lincoln Laboratory, Ordnance Survey, PB MapInfo, Shell International Exploration, US Army TEC (Topographic Engineering Center), US Census Bureau, US Environmental Protection Agency (EPA), US National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center...

31 what are open standards? Everyone knows how to interact with OCG standards Which means we can all share data and communicate with one another! Which makes us a community! scientific, geospatial, academic, local, global, etc.

32 working with open source who creates geospatial software? Anyone and Everyone working with an open source community... How do they work?

33 working with open source?

34 working with open source?

35 working with open source

36 working with open source

37 working with open source

38 working with open source

39 working with open source

40 working with open source Good ideas need never be ignored

41 working with open source internet feedback... instant bug fixes instant support mailing lists, instant messaging

42 working with open source Inquiry

43 working with open source Report

44 working with open source Bug fix

45 working with open source Fix verified

46 working with open source aprox. time taken: 30 minutes

47 working with open source Approximate time to release new bug fix: 4 6 months!

48 working with open source Best part about open source community... don't have to be a programmer to get involved! Bug reporting Documentation Website design and maintenance Donations Marketing Teaching etc...

49 Why all the fuss? Even proprietary software companies use open source software! ESRI, CADCorp, Google Earth etc. all use open source software to read/write spatial data But there are better reasons for us to use open source software...

50 why all the fuss? It can be quite economical! Cost of software is free Oracle Spatial -----> PostGIS 38, ,000 = 46,000 ArcGIS > QGIS + GRASS 2200

51 why all the fuss? What about support?

52 why all the fuss? The software developer... is also a user!

53 why all the fuss? Fixing bugs... helps you and them

54 why all the fuss? Baring that... you have the source code, so you can fix things yourself! but you don't have to!

55 why all the fuss? Open source support No one vendor to call Anyone with expertise can help Not locked-in to one vendor... Open market of support suppliers Proprietary software support Call the lone vendor The don't have to fix it... unless you pay them for support Which only they provide!

56 why all the fuss? Many companies making money from open source software Training Customization Support Bug fixing Etc.

57 why all the fuss? How do we find these companies? Open Source Geospatial Foundation Created to support and build the highest quality open source geospatial software. Our goal is to encourage the use and collaborative development of community led projects

58 why all the fuss?

59 introduction to open source geospatial software I leave you now with Jo to talk more about what OSGeo does, and how you can get involved!