The document outlines the history and development of open source GIS technologies. It discusses key developments like the creation of GRASS GIS in 1983, the first web map in 1993, the launch of OpenStreetMap in 2004, and more recent technologies like Earth Engine from 2010. The presentation agenda is also provided, covering topics like PostGIS, gridded data, KML visualization, and OGC services.

1. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
OpenGIS Ser-vices
@ Delft Software Days 2014
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Fedor Baart
fedor.baart@deltares.nl
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Agenda
09:00 - 09:15 Introduction, Fedor Baart
09:15 - 10:30 PostGIS and Qgis, Frank Keppel
10:30 - 11:00 !
11:00 - 12:30 Gridded data, Giorgio Santinelli
12:30 - 14:00 "
14:00 - 15:30 Visualizing with KML, Kees den Heijer
15:30 - 16:00 !
16:00 - 17:30 Services, Fedor Baart
17:30 - 18:30 #
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7. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
History
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Open Source GIS
1980 Lagrid @ Westervelt
1983 Proj4 @ Evenden
1983 GRASS GIS @ CERL
1994 www
1994 Open Geospatial Consortium
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First map
1993 @ Xerox
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Mapserver
1994 @ NASA/ForNet (open source since 1999)
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First process
1995 @ Berkeley
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Location based services: rout-ing
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1996 @ Mapquest & Multimap

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Spatial querying
2000 @ Geoserver
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NASA World Wind
2003 @ NASA
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OpenStreetMap
2004 @ Steve Coast
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OpenStreetMap
2004 @ Steve Coast
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Styling
2005 @ Mapnik
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Google Maps
2005 @ Google
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Tilecache
src: renderfast.com
2006 @ Metacarta
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Streetview
2007 @ Google
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Sensors
2007 @ OGC
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INSPIRE
2007 @ EU
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Stylesheets
2008 @ Mapnik & Tilemill
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Model as a service
2010 @ ESMF (Saint)
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Earth Engine
2010 @ Google
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Vectors and 3D
transitions
2011 @ W3
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Vectors and 3D
2011 @ W3
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Animations
2011 @ W3
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Animations
2011 @ W3
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Map Content Management
2011 @ CartoDB
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Interactive models
2014 @ 3Di
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OpenEarth stack
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58. 2013 @ TUD OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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59. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Future
Sensors
Push/Messages
Global processing
Model setup
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OGC Service
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Web Map Services
Get map in bitmap form
Get information for 1 location
Custom bounding box
Map rendered by server on request
Query by time and elevation
Coordinate transformation
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GetCapabilities
<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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Implementations
Geoserver
Mapserver
ncWMS
ADAGUC
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GetMap
http://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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70. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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71. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Example
http://geoport.whoi.edu/thredds/wms/bathy/srtm30plus_v6
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Extensions
COLORSCALERANGE
LOGSCALE
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WMTS
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UTFGrid
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Challenges
Video
Streaming
Voxels
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Vector
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Everything is a feature
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The question "What is a feature?" leads directly
to a philosophical rabbit hole which deposits the
unwary questioner in a wonderland from which
it is difficult to return.
Nordgren, 2006
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Web Feature Service
Get list of features
Get table with feature info
Custom bounding box
Not rendered
Coordinate transformation
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89. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
GetFeature
http://geo.vliz.be/geoserver/wfs?
request=GetFeature&
service=wfs&
typeName=World:worldcities&
bbox=51,2,55,5&
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Coverages
Feature that acts as a function to return values
from its range for any direct position within its
spatiotemporal domain
a grid
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Web Coverage Service
Get a grid file
Custom bounding box
Not rendered
Coordinate transformation
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95. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
GetCoverage
http://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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96. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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97. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
OPeNDAP vs WCS
array or spatial?
10.1111/j.1467-9671.2012.01312.x
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99. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Other services
Sensor Observation Service
Open Model Interface
Catalogue Service for the Web
OPeNDAP
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101. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Client libraries
OGR/GDAL (C,python,R)
OWSLib (python)
geotools (java)
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Client software
QGis (desktop)
uDig (desktop)
Leaflet (web)
OpenLayers (web)
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105. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Web Processing
Services
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Processes
Call a function
Define input variables/files
Define output variables/files
Custom bounding box
Can be rendered or not
Start process
Chain processes
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Typical examples
Spatial operations
Conversions
Process @ data
Simple models
Facade to complex models
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111. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Operations
GetCapabilities
DescribeProcess
Execute
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Tide Example
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115. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
OSU Tidal constituents
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116. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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117. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Tidal predict
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GetCapabilities
<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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120. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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DescribeProcess
<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/Output
Title/Abstract
Description
Unit
Default
Min/max occurance Types
Literal (string, number)
Bounding Box
Complex (raster, vector)
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Execute
<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,lon
2014-11-02 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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127. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Server Implementations
Zoo
PyWPS
Geoserver
52North
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129. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Tools and languages
JTS
GRASS
Orfeo
Sextante
python, R, java
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Implementing a process
class 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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133. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Client Implementations
OpenLayers
OWSLib
Geotools (unsupported)
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Client Example
// OpenLayers example
client = 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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136. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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137. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Setting up a server
1. Get OSX/linux computer with VirtualBox
2. Install ansible
3. Install vagrant
4. Download OpenEarth stack @ github
5. $ vagrant up wps
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138. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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139. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Missing features
Stop a process
REST
Spatial types (everything is complex)
Layout hints/classes
Variable relations
Push/notifications
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140. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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141. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Planned in WPS 2
Fall of 2014?
Pause,Resume,Dismiss
REST?
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142. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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143. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
Excercises
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144. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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145. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
WMS + WFS wfs/wms client WPS wps client
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146. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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147. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
#
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148. OpenEarth http://siggyf.github.io/presentations/gis2014/?print-pdf#/
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