Voronoi polygon generation using GRASS-GIS (v.voronoi)

Created: 2011-04-27 16:18:17 Last updated: 2011-04-27 16:18:19

Download Workflow

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)

Preview

Download as scalable diagram (SVG)

Run

Run this Workflow in the Taverna Workbench...

Option 1:

Copy and paste this link into File > 'Open workflow location...'
http://myexperiment.org/workflows/2089/download?version=1
[ More Info Expand ]

Workflow Components

Authors (2)

Titles (1)

Descriptions (1)

Dependencies (0)

Inputs (0)

Processors (12)

Name	Type	Description
ExecuteProcess_v.voronoi	wsdl	Wsdl http://rsg.pml.ac.uk/wps/vector.wsdl Wsdl Operation ExecuteProcess_v.voronoi
ExecuteProcess_v.voronoi_DataInputs	xmlsplitter
random_points	stringconstant	Value http://rsg.pml.ac.uk/wps/testdata/random_points.gml
Xpath_getResult	xpath	Xpath Expression //[local-name()='outputResult']/
ExecuteProcess_gml2svg	wsdl	Wsdl http://rsg.pml.ac.uk/wps/generic.wsdl Wsdl Operation ExecuteProcess_gml2svg
ExecuteProcess_gml2svg_DataInputs	xmlsplitter
poly	stringconstant	Value poly
XPath_getSVG	xpath	Xpath Expression /ExecuteProcess_gml2svgResponse/outputResult/*
ExecuteProcess_gml2svg_2	wsdl	Wsdl http://rsg.pml.ac.uk/wps/generic.wsdl Wsdl Operation ExecuteProcess_gml2svg
ExecuteProcess_gml2svg_2_DataInputs	xmlsplitter
XPath_getSVG2	xpath	Xpath Expression /ExecuteProcess_gml2svgResponse/outputResult/*
point	stringconstant	Value point

Beanshells (0)

Outputs (2)

Name	Description
voronoiOutput
originalPoints

Datalinks (13)

Source	Sink
ExecuteProcess_v.voronoi_DataInputs:output	ExecuteProcess_v.voronoi:DataInputs
random_points:value	ExecuteProcess_v.voronoi_DataInputs:input
ExecuteProcess_v.voronoi:ProcessOutputs	Xpath_getResult:xml_text
ExecuteProcess_gml2svg_DataInputs:output	ExecuteProcess_gml2svg:DataInputs
Xpath_getResult:nodelistAsXML	ExecuteProcess_gml2svg_DataInputs:input
poly:value	ExecuteProcess_gml2svg_DataInputs:type
ExecuteProcess_gml2svg:ProcessOutputs	XPath_getSVG:xml_text
ExecuteProcess_gml2svg_2_DataInputs:output	ExecuteProcess_gml2svg_2:DataInputs
random_points:value	ExecuteProcess_gml2svg_2_DataInputs:input
point:value	ExecuteProcess_gml2svg_2_DataInputs:type
ExecuteProcess_gml2svg_2:ProcessOutputs	XPath_getSVG2:xml_text
XPath_getSVG:nodelistAsXML	voronoiOutput
XPath_getSVG2:nodelistAsXML	originalPoints

Coordinations (0)

Information Workflow Type

Taverna 2

Information Uploader

Jorgejesus

Information License

All versions of this Workflow are licensed under:

Information Version 1 (of 1)

Information Credits (1)

(People/Groups)

Jorgejesus

Information Attributions (0)

(Workflows/Files)

None

Information Tags (7)

Uploader tags

gml
|
grass
|
netmar
|
pywps
|
svg
|
vector
|
voronoi

Log in to add Tags

Information Shared with Groups (0)

None

Information Featured In Packs (0)

None

Log in to add to one of your Packs

Information Attributed By (0)

(Workflows/Files)

None

Information Favourited By (0)

No one

Information Statistics

1453 viewings

1199 downloads

[ see breakdown ]

Citations (0)

None

Version History

In chronological order:

Voronoi polygon generation using GRASS-GIS (v.voronoi)

Created by Jorgejesus on Wednesday 27 April 2011 16:18:17 (UTC)

Reviews (0)

No reviews yet

Be the first to review!

Comments (0)

View Timeline

No comments yet

Log in to make a comment

Other workflows that use similar services (2)

Taverna 2

Uploader

Jorgejesus

GRASS-GIS orchestration using pyWPS (2)

Download

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: Jorgejesus

Taverna 2

Uploader

Jorgejesus

Async WPS example (2)

Download

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: Jorgejesus

Voronoi polygon generation using GRASS-GIS (v.voronoi)

Preview

Run

Run this Workflow in the Taverna Workbench...

Workflow Components

Wsdl

Wsdl Operation

Value

Xpath Expression

Wsdl

Wsdl Operation

Value

Xpath Expression

Wsdl

Wsdl Operation

Xpath Expression

Value

Reviews (0)

Comments (0)

Other workflows that use similar services (2)