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Items tagged with "pywps" (10)

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Network-member PyWPS

Unique name: PyWPS
Created: Tuesday 26 October 2010 10:30:05 (UTC)

PyWPS workflow group. Web Processing Service (WPS) is an OGC (Open Geospatial Consortium) protocol designed for running GIS (Geographical Information System), and spatial analys in a SOA system. WPS uses a getCapabilities and DescribeProcess for service/operation discovery and then Execute to run the service/operation. The protocol is based in XML  or KVP in HTTP-GET or HTTP-POST.  ...

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Workflows (9)

Workflow Polygon buffer - Using pyWPS (1)

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Basic example on how to integrate a Web Processing Service (WPS) using  PyWPS's WSDL/SOAP The workflow will accept a GML file with featureCollection where polyon is described using gml:coordinate element structure. This GMl is easely generated with GDAL. The coodinate structure will be converted to WKT and used to create a polygon using shapely, the output will be a buffer polygon with a defined width. Output polygon will replace the orginal polygon and the existing XML will be return...

Created: 2010-10-26 | Last updated: 2010-10-26

Credits: User Jorgejesus

Workflow Async WPS example (2)

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Example on how to work with an async service, where the statusURL is used to check for Example on how to work with an async service, where the statusURL is used to check for if the process has finished or not

Created: 2010-11-04 | Last updated: 2011-04-27

Credits: User Jorgejesus

Workflow GRASS-GIS orchestration using pyWPS (2)

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Generic workflow that run r.watershed, with auxiliary services: r.math and geotiff2png. Watershed accumulation is calculated from DEM using r.watershed, the accumulation result is then filtered using r.math with equation:output=(if(a>10,a,null())) Generic workflow that run r.watershed, with auxiliary services: r.math and geotiff2png. Watershed accumulation is calculated from DEM using r.watershed, the accumulation result is then filtered using r.math with equation: output=(if(a>10,...

Created: 2011-04-18 | Last updated: 2011-04-25

Credits: User Jorgejesus

Workflow Voronoi polygon generation using GRASS-GIS... (1)

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Generic example on how to deal with vectorial data. Major pitfall is the need to process ProcessOutputs using Xpath plugin. A random point file in GML 2.1.2 is sent to the v.voronoi service and after it is sent to a service that runs v.out.svg generating a SVG image that can be rendered in Taverna (need to set output to SVG image)

Created: 2011-04-27 | Last updated: 2011-04-27

Credits: User Jorgejesus

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Workflow Image metadata extraction (1)

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This workflow invokes the gdalinfo service and will list various information about a GDAL supported raster dataset of the image ( GeoTIFF, PNG, JPEG and GIF.).

Created: 2011-08-31 | Last updated: 2011-08-31

Credits: User Harvey

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Workflow TIFF to PNG (1)

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This workflow can convert Image format from TIFF to PNG. This workflow is one of the example for GENESI-DEC ontology.

Created: 2011-08-31 | Last updated: 2011-08-31

Credits: User Harvey

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Workflow Convert GML to SVG (1)

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This workflow can convert the GML (Geography Markup Language) file to SVG image.

Created: 2011-08-31 | Last updated: 2011-08-31

Credits: User Harvey

Workflow Point coordinate projection transformation (1)

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Point coordinate transformation. Hard coded example of transformation from 4326 (lat/long) to 32630 (UTM 30N) for 3 points in the UK. The service is called once at the time, just to test the list interactor, since the service could work with a list of points. Metadata: http://rsg.pml.ac.uk/wps/generic.cgi?request=describeProcess&service=wps&identifier=reprojectCoords&version=1.0.0 Library: gdaltransform

Created: 2011-09-16 | Last updated: 2011-09-16

Credits: User Jorgejesus

Workflow r.stats workflow for pixel statistics (1)

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r.stats operation for image. Output will group pixels by: DN, total area, relative %. This worflow is used inside the ice Class exampel as a nested workflow

Created: 2011-11-02 | Last updated: 2011-11-02

Credits: User Jorgejesus

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