Mapping, GIS and geolocating data in Java @ JAX London
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Introduction to mapping, GIS and geolocation in Java. Focusing on open source Java projects which can help you.
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Mapping, GIS and geolocating data in Java @ JAX London
- 1. Mapping, GIS and Geolocating data in Java Using open source software Joachim Van der Auwera / Geosparc nv
- 3. Data and data formats
- 6. Java servers and frameworks
- 7. GIS basics Maps, layers, tiles and features Geometries
- 8. Spatial operations and queries
- 9. Projections and Coordinate Reference Systems Location?
- 11. Data is split
- 12. Overlays
- 13. Transparency
- 15. Data is split
- 16. Stitched together at joins
- 17. Fixed size
- 18. WMTS
- 20. Features Represents a real-world phenomenon
- 21. Has geometry, linking to location on earth
- 22. Has attributes, e.g. “maximum depth” for a lake
- 26. Polygon, multi- Usually only one type per layer Constraints on allowed shapes
- 27. Spatial queries Distance, buffers, joins, intersections
- 28. CQL, ECQL
- 29. Coordinate Reference Systems Coordinate notation
- 30. Spherical or ellipsoid approximation Which ellipsoid Origin: (Meridian, Greenwich)?
- 33. WGS84 : global, used by GPS (lat,lon) or (lon,lat) Many local variants
- 34. Projections The world is not flat
- 35. But a screen/paper is
- 36. Approximate using a sphere
- 37. Approximate using an ellipsoid
- 39. Start from a point (azimuthal)
- 40. Conical
- 41. Projections, always a compromise Conformal
- 42. Equal-area
- 43. Equidistant
- 44. e.g Mercator
- 45. Winkel Tripel
- 46. Lambert cyl
- 47. Equirectangular
- 48. Sinusoidal
- 49. Molleweide
- 50. Waterman to the rescue?
- 51. Coordinate Reference Systems EPSG database http://www.epsg-registry.org/ EPSG:4326 is WGS84 EPSG:3857 is Mercator
- 52. Google Mercator (originally 900913, then 3785, now gone?) Duplicates EPSG:4326 (lat-lon or lon-lat) urn:x-ogc:def:crs:EPSG:6.11.2:4326
- 53. WG:84
- 54. CRS, SRS, SRID Coordinate Reference System (CRS)
- 55. often expressed as Well Known Text (WKT)
- 56. SRS, Spatial Reference Code EPSG:54019 SRID, Spatial Reference ID 54019
- 58. Usually EPSG
- 59. Projecting raster images? Aereal images need corrections
- 60. Image affected by Height of camera
- 61. Projection + location (e.g. Mercator!)
- 62. Angle of photo + height of surface
- 63. Precision Precision allows aligning coordinates on a grid Can skew results on spatial operations
- 64. CRS transformations Transformations can be inaccurate as lines turn into curves
- 65. Location Where am I? In browser, HTML5, based on IP, GPS, GSM signal Where is …? Mostly through geocoder web-services Geonames (http://www.geonames.org/) Nominatim (http://nominatim.openstreetmap.org/) Google API, Mappy, Yahoo! PlaceFinder
- 66. Data and data formats OGC Standards: WMS, WFS, WMST
- 67. Raster formats: GeoTiff, JPEG2000, ...
- 68. Vector formats: GeoJSON, KML, shape, ...
- 69. Free data: OpenStreetMap, Natural Earth, local data
- 70. Open Geospatial Consortium Home to most of the GIS related standards http://www.opengeospatial.org/
- 71. WMS, Web Map Service
- 72. WFS, Web Feature Service
- 73. WMTS, Web Map Tile Service
- 74. WKT, Well Known Text
- 75. GML, Geographic Markup Language
- 76. KML, Keyhole Markup Language (Google)
- 77. SLD, Styled Layer Description
- 78. WPS, Web Processing Service
- 79. WCS, Web Coverage Service
- 80. ...
- 81. Other raster formats GeoTIFF
- 82. JPEG2000
- 84. SDTS
- 85. ECW
- 86. DTED
- 87. NITF
- 88. NASA ELAS
- 89. GRASS rasters
- 90. ESRI grid
- 91. NetCDF
- 92. ...
- 93. Other vector formats Shape file (ESRI), very common
- 94. GeoJSON
- 95. TIGER
- 96. DXF (AutoCad)
- 98. Open / free data OpenStreetMap, community built map http://www.openstreetmap.org/ Natural Earth http://www.naturalearthdata.com/ Local data
- 99. Database options Why a spatial database? Spatial operations
- 100. OGC “Simple Features for SQL” support … WHERE ST_Intersection(roads.geom, city.geom) Spatial indexes Relational PostGis
- 101. GeoDB / H2 NoSQL Neo4j
- 102. GeoCouch / CouchDB
- 105. High Performance
- 106. Data Integrity
- 107. Complete support All spatial operations
- 109. n-dimensional project PostGis version 1.5.3 site http://postgis.refractions.net/ license GPL (JDBC driver is BSD)
- 110. GeoDB Spatial H2
- 111. In-memory DB ideal for junit testing Does not support all methods, but can easily be extended project GeoDB version 0.4 site https://github.com/jdeolive/geodb/wiki license BSD-like
- 112. Neo4j NoSQL, graph database geographic features stored as graphs
- 113. Great OpenStreetMap support (import etc)
- 114. Not all spatial operations (e.g. buffer) project Neo4j spatial version 0.6 site wiki.neo4j.org/content/Neo4j_Spatial license AGPL
- 115. Java Libraries JTS
- 116. GeoTools
- 117. Hibernate Spatial
- 118. GeoToolkit
- 119. Proj4j
- 120. GeoLatte
- 121. OpenLayers ?
- 122. Google, Bing!, Yahoo! Maps ?
- 123. JTS JTS Topology Suite
- 124. Geometric model
- 125. Geometric operations
- 126. Spatial structures and algorithms
- 127. I/O capabilities WKT, WKB, GML project JTS version 1.12 site http://tsusiatsoftware.net/jts/main.html license LGPL
- 128. GeoTools GIS tools covering a wide
- 129. range of topics project GeoTools version 2.7.3 site http://www.geotools.org/ license LGPL
- 130. Many modules Referencing (CRS, transformations,...)
- 132. Rendering
- 133. Coverage (raster images in many formats)
- 134. Data access (DB, WFS, raster, shape,...) Extensions Schema
- 135. Graph
- 136. WMS client
- 138. Hibernate Spatial Spatial extension for
- 139. Hibernate
- 140. Register your data provider hibernate.dialect=org.hibernatespatial.postgis.PostgisDialect Special type for storing a Geometry @Column(name = "geom")
- 142. private Geometry geometry; Spatial queries, also using Criteria
- 143. DB support: PostGis, Oracle10i, MySQL, MSSQL, GeoDB (H2) project Hibernate Spatial version 1.1 site http://www.hibernatespatial.org/ license LGPL
- 144. GeoToolkit GIS tools covering a wide range of topics Module based Referencing
- 145. Coverage
- 146. Display (swing)
- 147. Analytics Originally a fork of (part of) GeoTools but with cleanup and refactoring, and Java6 only project GeoToolkit version 3.19 site http://www.geotoolkit.org/ license LGPL
- 148. Proj4J Java version of Proj4
- 149. CRS handling
- 150. transformations project Proj4J version 0.1 (-snapshot) site http://trac.osgeo.org/proj4j/ license MIT?
- 152. components
- 153. Modules Base: transformations, filtering, GeoJSON
- 154. Featureserver: access data through Hibernate spatial
- 155. Graph
- 156. Mapserver
- 157. Maprenderer project GeoLatte version ? site http://www.geolatte.org/ license LGPL
- 158. Notable non-Java projects OpenLayers JavaScript
- 159. Powerful
- 160. Popular Not open source Google maps / Bing / Yahoo! maps Free/open?
- 161. Data +/-
- 162. Java servers and frameworks GeoServer
- 163. Deegree
- 164. uDig
- 165. gvSig
- 166. Puzzle-GIS
- 167. OpenJUMP
- 168. GeoKettle
- 169. GeoNetwork
- 170. SEXTANTE
- 171. Geomajas
- 172. GeoServer Share and edit geospatial data
- 173. Render data to WMS
- 174. WFS interface to your data
- 175. Integrated OpenLayers as default viewing engine
- 176. Built on GeoTools
- 177. Integrate with ArcGIS, Google Maps/Earth; Yahoo! Maps, MS Virtual Earth project GeoServer version 2.1.2 site http://geoserver.org/ license GPL
- 178. project GeoServer
- 179. deegree supplies building blocks for Spatial Data Infrastructure
- 180. Implements OGC and ISO/TC 211 standards
- 181. Building blocks Web services (WMS, WFS, WPS, WCS, Gazetteer,...)
- 182. iGeoPortal
- 183. iGeoSecurity
- 184. iGeo3D
- 185. iGeoDesktop project deegree version 3.0.4 Celcius site http://www.deegree.org/ license LGPL
- 186. project deegree
- 187. uDig Desktop GIS
- 188. Based on Eclipse RCP, JTS, GeoTools
- 189. View, edit and print GIS data
- 190. Can be extended/customized using plug-ins Jgrass, Eurobios, DEWS project uDig version 1.2.2 site http://udig.refractions.net/ license LGPL
- 191. project uDIG
- 192. gvSig Desktop GIS
- 193. Same view local and remote
- 195. Extensible
- 196. GvSig Mobile
- 197. Remote sensing
- 198. 3D support project gvSig version 1.11 site http://www.gvsig.org/ license GPL
- 199. project gvSIG
- 201. Based on NetBeans platform
- 202. and GeoToolkit
- 203. Multi-screen, multi-project at same time
- 204. Clear separation source/map/view project Puzzle-GIS version .07 site http://puzzle-gis.codehaus.org/ license LGPL
- 205. project Puzzle-GIS
- 206. OpenJUMP Desktop GIS
- 207. Save, edit-analyze GIS data
- 208. Flexible plug-ins project OpenJUMP version 1.4.2 site http://www.openjump.org/ license GPL
- 209. project OpenJUMP
- 210. GeoKettle Spatial extension of Kettle
- 212. ETL tool, build spatial
- 213. data warehouse
- 214. Builds on GeoMondrian, spatial extension of Mondrian
- 215. Extract also from spatial data sources
- 216. Transform also spatial operations (project, geocode,...) project GeoKettle version 2.0 site www.spatialytics.org/projects/geokettle/ license LGPL
- 217. project GeoKettle
- 218. GeoNetwork Catalog application to manage spatial resources
- 219. Metadata editing
- 220. Search functions
- 221. Embeds GeoServer (optional) project GeoNetwork version 2.6.4 site http://geonetwork-opensource.org/ license GPL
- 222. project GeoNetwork
- 223. SEXTANTE Spatial data analysis library
- 225. raster and vector data processing
- 226. Graphical components to run and use those algorithms Including graphical modeler Integrates with many GIS tools gvSig, OpenJUMP, uDIG Split of from gvSig project SEXTANTE version 0.6 site http://sextante.forge.osor.eu/ license MIT
- 227. project SEXTANTE
- 228. project SEXTANTE
- 229. Geomajas Integrate, transform and secure GIS data
- 230. (web) application framework / Spatial Application Server
- 231. Built on GeoTools, JTS, Spring, GWT, Hibernate Spatial
- 232. Faces for front-end/clients GWT, SmartGWT, GeoJSON Generic layers for data access WMS, WFS, GeoTools data source, Hibernate Spatial Plug-ins for extension Caching and rasterization, printing/PDF, security services, geocoder project Geomajas version 1.9.0 site http://www.geomajas.org/ license AGPL
- 233. project Geomajas
- 234. Thin client
- 235. Server for heavy-lifting Allows security
- 236. Data transformation
- 237. Integration with back-end processes project Geomajas
- 238. project Geomajas
- 239. Q & A Joachim Van der Auwera http://blog.progs.be/ Geosparc [email_address] @joachimvda http://geosparc.com/