DSD-INT 2014 - OpenGIS Workshop - OpenGIS Services, Fedor Baart

OpenGIS Ser-OpenGIS Ser-vicesvices

@ Delft Software Days 2014

OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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Fedor Baart

[email protected]


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AgendaAgenda09:00 - 09:15 Introduction, Fedor Baart09:15 - 10:30 PostGIS and Qgis, Frank Keppel10:30 - 11:00 !

11:00 - 12:30 Gridded data, Giorgio Santinelli12:30 - 14:00 "

14:00 - 15:30 Visualizing with KML, Kees den Heijer15:30 - 16:00 !

16:00 - 17:30 Services, Fedor Baart17:30 - 18:30 #


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HistoryHistoryOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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Open Source GISOpen Source GIS1980 Lagrid @ Westervelt

1983 Proj4 @ Evenden

1983 GRASS GIS @ CERL

1994 www

1994 Open Geospatial Consortium


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First mapFirst map

1993 @ Xerox


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MapserverMapserver

1994 @ NASA/ForNet (open source since 1999)


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First processFirst process

1995 @ Berkeley


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Location based services: rout-Location based services: rout-inging

1996 @ Mapquest & Multimap


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Spatial queryingSpatial querying

2000 @ Geoserver


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NASA World WindNASA World Wind

2003 @ NASA


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OpenStreetMapOpenStreetMap

2004 @ Steve Coast


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OpenStreetMapOpenStreetMap2004 @ Steve Coast


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StylingStyling

2005 @ Mapnik


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Google MapsGoogle Maps

2005 @ Google


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TilecacheTilecache

src: renderfast.com

2006 @ Metacarta


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StreetviewStreetview

2007 @ Google


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SensorsSensors

2007 @ OGC


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INSPIREINSPIRE

2007 @ EU


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StylesheetsStylesheets

2008 @ Mapnik & Tilemill


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Model as a serviceModel as a service

2010 @ ESMF (Saint)


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Earth EngineEarth Engine

2010 @ Google


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Vectors and 3DVectors and 3Dtransitions

2011 @ W3


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Vectors and 3DVectors and 3D

2011 @ W3


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AnimationsAnimations

2011 @ W3


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AnimationsAnimations

2011 @ W3


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Map Content ManagementMap Content Management

2011 @ CartoDB


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Interactive modelsInteractive models

2014 @ 3Di


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OpenEarth stackOpenEarth stackOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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2013 @ TUDOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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FutureFutureSensorsPush/MessagesGlobal processingModel setup


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OGC ServiceOGC ServiceOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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Web Map ServicesWeb Map ServicesGet map in bitmap formGet information for 1 locationCustom bounding boxMap rendered by server on requestQuery by time and elevationCoordinate transformation


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GetCapabilitiesGetCapabilities<wms_capabilities> <service> <title>OpenEarth test server</title> <maxwidth>2048</maxwidth> </service> <capability> <request> <getmap> <format>image/png</format> <dcptype><http><get><onlineresource xlink:type="simple" xlink:href </getmap> </request> <layer> <crs>EPSG:4326</crs> <title>daily averaged meteo parameter.</title> </layer> </capability></wms_capabilities>


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ImplementationsImplementationsGeoserverMapserverncWMSADAGUC


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GetMapGetMaphttp://geoport.whoi.edu/thredds/wms/bathy/srtm30plus_v6?

service=WMS&

request=GetMap&

layers=topo&

version=1.3.0&

CRS=epsg:4326&

bbox=50,0,55,10&

width=256&height=256&

styles=&

format=image/png


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ExampleExamplehttp://geoport.whoi.edu/thredds/wms/bathy/srtm30plus_v6


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ExtensionsExtensionsCOLORSCALERANGELOGSCALE


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WMTSWMTSOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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UTFGridUTFGridOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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ChallengesChallengesVideo

Streaming

Voxels


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VectorVectorOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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Everything is a featureEverything is a featureOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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The question "What is a feature?" leads directlyto a philosophical rabbit hole which deposits theunwary questioner in a wonderland from which

it is difficult to return.

Nordgren, 2006


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Web Feature ServiceWeb Feature ServiceGet list of featuresGet table with feature infoCustom bounding boxNot renderedCoordinate transformation


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GetFeatureGetFeaturehttp://geo.vliz.be/geoserver/wfs?

request=GetFeature&

service=wfs&

typeName=World:worldcities&

bbox=51,2,55,5&


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CoveragesCoveragesFeature that acts as a function to return valuesfrom its range for any direct position within its

spatiotemporal domain

a grid


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Web Coverage ServiceWeb Coverage ServiceGet a grid fileCustom bounding boxNot renderedCoordinate transformation


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GetCoverageGetCoveragehttp://geoport.whoi.edu/thredds/wcs/bathy/srtm30plus_v6?

request=GetCoverage

&version=1.0.0

&service=WCS

&format=geotiff

&coverage=topo

&BBOX=0,50,10,55


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OPeNDAP vs WCSOPeNDAP vs WCSarray or spatial?

10.1111/j.1467-9671.2012.01312.x


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Other servicesOther servicesSensor Observation ServiceOpen Model InterfaceCatalogue Service for the WebOPeNDAP


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Client librariesClient librariesOGR/GDAL (C,python,R)OWSLib (python)geotools (java)


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Client softwareClient softwareQGis (desktop)uDig (desktop)Leaflet (web)OpenLayers (web)


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Web ProcessingWeb ProcessingServicesServices


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ProcessesProcessesCall a functionDefine input variables/filesDefine output variables/filesCustom bounding boxCan be rendered or notStart processChain processes


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Typical examplesTypical examplesSpatial operationsConversionsProcess @ dataSimple modelsFacade to complex models


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OperationsOperationsGetCapabilitiesDescribeProcessExecute


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Tide ExampleTide ExampleOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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OSU Tidal constituentsOSU Tidal constituentsOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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Tidal predictTidal predictOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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GetCapabilitiesGetCapabilities <wps:capabilities service="WPS" version="1.0.0"> <ows:serviceidentification> <ows:title>OpenEarth WPS server</ows:title> <ows:accessconstraints>none</ows:accessconstraints> </ows:serviceidentification> <ows:serviceprovider> <ows:providername>Deltares</ows:providername> </ows:serviceprovider> <wps:processofferings> <wps:process wps:processversion="0.1"> <ows:identifier>tidal_predict</ows:identifier> <ows:title>Tidal prediction tool</ows:title> </wps:process> </wps:processofferings></wps:capabilities>


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DescribeProcessDescribeProcess <wps:processdescriptions service="WPS" version="1.0.0" xml:lang="en-CA"> <processdescription> <ows:identifier>tidal_predict</ows:identifier> <ows:title>Tidal prediction tool</ows:title> <datainputs> ...<identifier>startdate</identifier>... </datainputs> <processoutputs> <output> <ows:identifier>tide</ows:identifier> <ows:title>Calculated water level for requested locations and date</ows:title> <complexoutput> ...<mimetype>text/csv</mimetype>... </complexoutput> </output> </processoutputs> </processdescription></wps:processdescriptions>


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Input/OutputInput/OutputTitle/AbstractDescriptionUnitDefaultMin/max occurance

TypesTypesLiteral (string, number)Bounding BoxComplex (raster, vector)


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ExecuteExecute <wps:executeresponse><wps:process wps:processversion="0.1"> <ows:identifier>tidal_predict</ows:identifier> <wps:status creationtime="2014-11-02T19:50:39Z"> <wps:processsucceeded>PyWPS Process tidal_predict successfully calculated</ </wps:status> <wps:processoutputs> <wps:output> <ows:title>Calculated water level for requested locations and date</ows:title <wps:data> <wps:complexdata mimetype="text/csv">date,h,lat,lon2014-11-02 19:50:37,0.3735264572229592,3.0,52.0 </wps:complexdata> </wps:data> </wps:output> </wps:processoutputs></wps:process></wps:executeresponse>


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Server ImplementationsServer ImplementationsZooPyWPSGeoserver52North


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Tools and languagesTools and languagesJTSGRASSOrfeoSextantepython, R, java


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Implementing a processImplementing a processclass Process(WPSProcess): def __init__(self): WPSProcess.__init__(self, "tidal_predict", title="Tidal prediction tool") def execute(self): """execute a tidal prediction""" date = self.date.getValue() location = self.location.getValue() df = openearthtools.physics.tide.predict(location, date=date) self.tide.setValue(df.to_json())


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Client ImplementationsClient ImplementationsOpenLayersOWSLibGeotools (unsupported)


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Client ExampleClient Example // OpenLayers exampleclient = new OpenLayers.WPSClient({ servers: { opengeo: 'http://demo.opengeo.org/geoserver/wps' }}); intersect = client.getProcess('opengeo', 'JTS:intersection'); intersect.configure({ inputs: { a: features, b: geometry }, success: function(outputs) { map.baseLayer.addFeatures(outputs.result); }});


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Setting up a serverSetting up a serverGet OSX/linux computer with VirtualBox1. Install ansible2. Install vagrant3. Download OpenEarth stack @ github4. $ vagrant up wps5.


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Missing featuresMissing featuresStop a processRESTSpatial types (everything is complex)Layout hints/classesVariable relationsPush/notifications


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Planned in WPS 2Planned in WPS 2Fall of 2014?

Pause,Resume,DismissREST?


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ExcercisesExcercisesOpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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WMS + WFSWMS + WFSwfs/wms client

WPSWPSwps client


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##OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/

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Science

DSD-INT 2014 - OpenGIS Workshop - OpenGIS Services, Fedor Baart