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nvironmental ngineeringydroloGISHydroloGIS S.r.l. - Via Siemens, 19 - 39100 Bolzano www.hydrologis.com

Geographic scripting in uDig: halfway between developer and user

FOSS4G 2013 - Nottingham

Andrea Antonello, HydroloGISSilvia Franceschi, HydroloGIS

2013-09-19

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"Geographic scripting..." == Geoscript

...it adds spatial capabilities to scripting languages

groovyscalajavascriptpythonclojure

- bases on the geotools library- making development much simpler- simplicity, batch-ing for non developers- fast prototyping without compiling for developers

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"Geographic scripting..." == Geoscript

Through geotools it provides support for:

vector data sourcesraster data sourcesvarious web services and databasesprojectionsvector geometry operationsrendering

------

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"Geographic scripting..." == Geoscript

On what do we depend on?

JavaAdvanced Imaging &

Imageio-ext

Geotools EMF

JTSJava

Topology Suite

Geoscript

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"Geographic scripting..." == Geoscript

JavaAdvanced Imaging &

Imageio-ext

Geotools EMF

JTSJava

Topology Suite

Deja vu!

Geoscript

uDig

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"...in uDig" == Userfriendly Desktop Internet GIS

uDig is an open source desktop GIS application framework,

distributed under dual EPL and BSD license.

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"...in uDig" == Userfriendly Desktop Internet GIS

uDig is an open source desktop GIS application framework,

distributed under dual EPL and BSD license.

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"...in uDig" == Userfriendly Desktop Internet GIS

uDig has a spatial toolbox to do spatial processing with

the help of the jgrasstools project.

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"...in uDig" == Userfriendly Desktop Internet GIS

uDig is also an extensible GIS framework to create apps on

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The Scripting Editor in uDig: since 1.4.0

open the editor to create a new script

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The Scripting Editor in uDig: since 1.4.0

the scripting editor

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The Scripting Editor in uDig: since 1.4.0

run and stop scripts

add common imports

handle memory

debug options

have some fun

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Command completion (...ehm suggestion)

minimal editor support

without dynamic access

to Java AST

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Syntax coloring

basic syntax coloring

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Interaction with uDig

Drag and drop support for file based data sources

Access to uDig object model not available (at the moment)

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Running the script

Each script is run in a different process

scripts can be stopped

output console

choose memory wisely

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University course available

http://jgrasstechtips.blogspot.it/2013/03/

course-geographic-scripting-in-udig.html

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Hydro- Geomorphologic processing with JGrasstools

By simply adding the JGrasstools jars to the "spatialtoolbox"

folder in the uDig installation, the jgrasstools processing

modules are enabled.

- aspect

- contour extraction

- network extraction

- slope

- maximum discharge

- lidar tools

}just examplesit is 0.1% of what you can do

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Hydro- Geomorphologic processing with JGrasstools

Raster classes are enabled (now Geoscript also supports them)

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Hydro- Geomorphologic processing with JGrasstools

JGrasstools supplies help for modules and syntax templates:

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Hydro- Geomorphologic processing with JGrasstools

Templates just need to be filled:

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Hydro- Geomorphologic processing with JGrasstools

Extract contours

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Hydro- Geomorphologic processing with JGrasstools

More complex: extract river network from dtm

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Hydro- Geomorphologic processing with JGrasstools

More complex: extract river network from dtm

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nvironmental ngineeringydroloGISHydroloGIS S.r.l. - Via Siemens, 19 - 39100 Bolzano www.hydrologis.com

Geoscript http://www.geoscript.orguDig http://www.udig.euJGrasstools http://www.jgrasstools.org

Geographic scripting in uDig:halfway between developer and user

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