Raster Algebra mit Oracle Spatial und uDig

Copyright © 2014 Oracle and/or its affiliates. All rights reserved. |

Oracle Spatial Technologies Integration with Open Source Tools

Karin Patenge | [email protected] Principal Sales ConsultantOracle Deutschland B.V. & Co. KG23-OCT-2014

LocationTech Meeting Oct 23, 2014 in Hamburg, Germany

LocationTech Meeting October 23, 2014Hamburg, Germany

Copyright © 2014 Oracle and/or its affiliates. All rights reserved. | 3

Safe Harbor StatementThe preceding is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.



Agenda

Why Open Source?

Libraries, Desktop GIS, Web Mapping, Data

Oracle Spatial and Graph at a Glance

Geospatial Applications with uDIG and Oracle Spatial

Useful Material and Links

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Agenda

Why Open Source?



Geospatial Applications with uDig and Oracle Spatial


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Open Source and Oracle

• Oracle is involved in a large number of Open Source activities– developing, testing, optimizing software and contributing code– investing in MySQL, Glassfish, Linux, Apache, BerkeleyDB, InnoDB, Xen and many

more

• It is common to see projects that combine Open Source and Oracle tools– Oracle infrastructure (database, middleware)– Commercial GIS tools for data editing and analysis– Open Source GIS tools for web mapping and web services



Geo Open Source Organizations

• OSGeo– Open Source Geospatial Foundation– Supports the major projects

• Free and Open Source Software for Geospatial (FOSS4G) conferences– Attracts significant crowds

• Oracle contribution to Geo Open Source projects– E.g. Ivan Lucena (Developer Oracle Spatial Team): Contributor to

• GDAL GeoRaster driver and • uDig Integration with GeoRaster



Agenda

Why Open Source?





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APIs and Libraries

Name URL Technology Oracle Vector ?SDO_GEOMETRY

Oracle Raster ?SDO_GEORASTER

Point CloudsSDO_PC

GDAL/OGR http://www.gdal.org/ C/C++ Yes Yes

GeoTools http://www.geotools.org/ Java Yes Yes

FDO http://fdo.osgeo.org/ C/C++ Yes No

libLAS http://www.liblas.org/ * C/C++ Yes

LAStools http://www.cs.unc.edu/~isenburg/lastools/

C/C++

PDAL http://www.pointcloud.org/ C/C++

JTS http://www.vividsolutions.com/jts/ Java N/Ap N/Ap

OpenLayers http://openlayers.org/ Javascript


* Superseded by LAStools (Martin Isenburg) as of 2014

http://www.gdal.org/

http://www.geotools.org/

http://fdo.osgeo.org/

http://www.liblas.org/

http://www.cs.unc.edu/~isenburg/lastools/

http://www.cs.unc.edu/~isenburg/lastools/

http://www.pointcloud.org/

http://www.vividsolutions.com/jts/

http://openlayers.org/


Desktop Tools

Name URL Technology Oracle Vector ?SDO_GEOMETRY


Grass http://grass.osgeo.org/ C/C++ Yes ?

Quantum GIS (QGIS) http://www.qgis.org/ C/C++ Yes Yes

gvSIG http://www.gvsig.org/ Java Yes No

Kosmo http://www.opengis.es/ Java Yes No

uDig http://udig.refractions.net/ Java Yes Yes

OpenJump http://www.openjump.org/ Java No No

MapWindows http://www.mapwindow.org/ C#/.NET Yes No


http://grass.osgeo.org/

http://www.qgis.org/

http://www.gvsig.org/

http://www.opengis.es/

http://udig.refractions.net/

http://www.openjump.org/

http://www.mapwindow.org/


Web Mapping Services

URL Technology Oracle Vector ?SDO_GEOMETRY


Mapserver http://mapserver.org/ C/C++ Yes Yes

MapGuide http://mapguide.osgeo.org/ Yes No

GeoServer http://geoserver.org/ Java Yes Yes

Deegree http://www.deegree.org/ Java Yes Yes


http://mapserver.org/

http://mapguide.osgeo.org/

http://geoserver.org/

http://www.deegree.org/


Data

• Open Data Initiatives• „Crowd“ Sourced

– OpenStreetMap http://www.openstreetmap.org/ – OpenSeaMap http://openseamap.org/

• State-Collected Spatial Data• Recommended Standards

– GML, WMS, WFS-T– Dublin Core, RDF, ISO19115 through ISO19139 (for metadata)


http://www.openstreetmap.org/

http://openseamap.org/


Agenda

Why Open Source?





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Brief Intro: Oracle Spatial and Graph (DB EE Option)In-Database Datatypes, Models, Processing, Analysis and Mining

Vector Data (2D)

Spatial Indexing (R-Tree)

Coordinate System Transformations

Spatial Queries

Routing

Vector Performance Accelerator

Geocoding

Geo Web Services

Vector Data (3D, 4D)

Spatial and Graph

Locator

Georaster, Raster Algebra

Topologies & Network Data Model

Semantic Networks, Ontologies, SPARQL, GeoSPARQL

Advanced Spatial Analysis and Mining

Point Clouds, TINs



Rasterdata Management and Analysis with Oracle Spatial

• A data type to store raster data– Satellite images, remote sensing data, digital elevation models– Multi-band, multi-spectral– An XML schema to store Metadata

• Data source, layer information

– Geo Referencing information

• Functionality– Storage and indexing of raster data

• No size limit for each raster object

– Generate resolution pyramid– Query and analysis

• Used e.g. http://geoproxy.de

SDO_GEORASTER


http://geoproxy.de/


New in Oracle Database 12c for Georaster

• Server-side raster algebra operations• Work on individual raster cells, or pixels to…

– Generate new raster layer (map) from two or more raster layers

• Application example– Combine two or more hazard maps to produce a risk map

In-Database Raster Algebra



Agenda

Why Open Source?





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Source:Technical Workshop given by Ivan Lucena (Oracle) and Jody Garnett (Boundless)at Location Intelligence Summit 2014– http://www.locationintelligence.net/dc/workshops/– http://www.oracle.com/technetwork/database/options/spatialandgraph/comm

unity/sagsummit-2014-2196705.html


http://www.locationintelligence.net/dc/workshops/

http://www.oracle.com/technetwork/database/options/spatialandgraph/community/sagsummit-2014-2196705.html



Use Prebuilt Hands-On Workshop

• Virtual Maschine available for Virtual Box 4.3 available via: – http://www.oracle.com/technetwork/d

atabase/options/spatialandgraph/community/sagsummit-2014-2196705.html#GeospatialApplications

– Additional Material to be downloaded and unzipped• See Instructions• http://www.locationintelligence.net/temp/2

014/Workshop6Material.zip

First Steps

– Start VirtualBox– Select the virtual machine– Click the green arrow icon– The machine starts– Wait for the login prompt– Select Workshop 6– The password is workshop– Change Keyboard Preferences

to use German Layout

Hands-On Oracle Spatial and uDig for Rasterdata






http://www.locationintelligence.net/temp/2014/Workshop6Material.zip

http://www.locationintelligence.net/temp/2014/Workshop6Material.zip


Learning objective: Raster Data Workflow using Oracle Spatial and uDig

• Expected Final Product:– NDVI (Normalized Differenced Vegetation Index) Map

• Data– Exploring Napa Valley Wine Country Data

• Steps1. Load spatial data into database2. Validate and visualize data3. Perform server-side (in-database) raster operations4. Perform server-side (in-database) map algebra5. Generate vegetation index map6. Map composition



Step 1: Load Spatial Data into Oracle Database

• Use GDAL – 1 Landsat image– 1 Elevation grid– 7 Vector layers

• GDAL is shipped with Oracle Database 12c



Load Landsat Image

1. On VM desktop, double-click workshop’s Home

2. On window Workshop, double-click Data

3. On window Data, double-click Landsat

4. On window Landsat, double-click loadit.sh

5. Select Run in Terminal

Step 1 continued



Load Elevation Grid



3. On window Data, double-click Napa GIS Elevation

4. On window Napa GIS Elevation, double-click loadit.sh


Step 1 continued



Load Vector Layers



3. On window Data, double-click Napa GIS Shapefiles

4. On window Napa GIS Shapefiles, double-click loadall.sh


Step 1 continued



Step 2: Validate and Visualize Spatial Data

• Use GeoRasterViewer and uDig• GeoRasterViewer is normally shipped with Oracle Database Examples

– $ORACLE_HOME/md/demo/georaster/java/startGeoRasterViewer.sh

• Visualize vector data with Oracle SQL Developer– Shipped with Oracle Database



Connect to Oracle Database

1. On the VM desktop, double-click GeoRasterView

2. From the menu, select Rasters and then Retrieve from DB

3. Enter database connection information:Host name localhostPort number 1521Database name ora12cUser name studentPassword student

4. Click on OK

Step 2 continued using GeoRasterViewer



Launch Landsat Image

1. Double-click USER: student

2. Double-click SCHEMA: student

3. Double-click TABLE: napa_landsat

4. Double-click COLUMN: image

5. Click on RDT: NAPA_LANDSAT_RDT$

6. With cursor over image:− Right-click to zoom out

− Left-click to zoom in

7. Click tab Metadata tab to inspect thethe GeoRaster metadata




Launch Elevation Grid

1. Double-click USER: student

2. Double-click SCHEMA: student

3. Double-click TABLE: napa_elevation

4. Double-click COLUMN: image

5. Click on RDT: NAPA_ELEVATION_RDT$

6. With cursor over image:− Right-click to zoom out

− Left-click to zoom in

7. Click tab Metadata tab to inspect thethe GeoRaster metadata




Change Layer Mapping

1. From the menu View select:− Show user ID

− Show cell value

− Show layer mapping

2. On the panel at the bottom rightselect a layer for Red, Green and Blue

3. Click on Refresh




Connect to Oracle Database1. On the VM desktop, double-click on uDig - User-

friendly Desktop GIS

2. On uDig menu, select Layer, select Add

3. On Add Data wizard, page Data Sources, select Oracle Spatial

4. Click on Next > and enter:Host name localhostPort number 1521User name studentPassword studentDatabase name ora12cInstance student

5. Click on Connect

6. Click on Next >

Step 2 continued using uDig



Select Oracle Spatial Layer

1. Select NAPA_FIELDS

2. Click on Finish




Select Features based on Query

1. Click on tab Table

2. Enter a Query, ex.: COPPOLA and press Enter

3. Right-click on the selected row and select Show Selection to automatically zoom to the selected feature




Step 3: Perform in-database raster operations

• Performed operations– Creating tables

• Data Type SDO_GEORASTER pointing to raster data table (RDT) with SDO_RASTER

– Subsetting raster• Using SDO_GEOR.SUBSET with parameter polygonClip = FALSE ( MBR)• Performs one or both of the following operations: (1) spatial crop, cut or clip or (2) layer or band subset

or duplicate

– RGB composition• Using SDO_GEOR.SUBSET using parameter layerNumbers

– Clipping by geometry• Using SDO_GEOR.SUBSET with parameter polygonClip = TRUE



Create Georaster Tables

1. Open workshop’s Home

2. Open Scripts

3. Open lab-02.sh


Step 3 continued

Documentation:http://docs.oracle.com/database/121/GEORS/geor_operations.htm#GEORS986


http://docs.oracle.com/database/121/GEORS/geor_operations.htm

http://docs.oracle.com/database/121/GEORS/geor_operations.htm


Subset Georaster


2. Open Scripts

3. Open lab-01.sh


Step 3 continued

Documentation:http://docs.oracle.com/database/121/GEORS/geor_ref.htm#GEORS1139


http://docs.oracle.com/database/121/GEORS/geor_ref.htm



Create RGB Composition


2. Open Scripts

3. Open lab-03.sh


Step 3 continued






Clip Polygon


2. Open Scripts

3. Open lab-04.sh


Step 3 continued






Step 4: Perform Raster Analysis

• New PL/SQL Package in 12c: SDO_GEOR_RA• Performed operations

– Elevation grid• Calculate statistics

– Using SDO_GEOR.GENERATESTATISTICS• Classify raster

– Using SDO_GEOR_RA.CLASSIFY• Apply a color-map

– Using SDO_GEOR.SETCOLORMAP

– Landsat• Raster Algebra e.g. NDVI (Normalized

Differential Vegetation Index)− Using SDO_GEOR_RA.RASTERMATHOP



Calculate Statistics


2. Open Scripts

3. Open lab-05.sh


Step 4 continued






Classify Georaster


2. Open Scripts

3. Open lab-06.sh


Step 4 continued

Documentation:http://docs.oracle.com/database/121/GEORS/geor_ra_ref.htm#GEORS1227


http://docs.oracle.com/database/121/GEORS/geor_ra_ref.htm



Apply Color-Map


2. Open Scripts

3. Open lab-07.sh


Step 4 continued






Calculate NDVI


2. Open Scripts

3. Open lab-08.sh


Step 4 continued

Documentation:http://docs.oracle.com/database/121/GEORS/geor_ra_ref.htm#GEORS1296





Apply Color-Map to NVDI


2. Open Scripts

3. Open lab-09.sh


Step 4 continued







Agenda

Why Open Source?





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Useful Links

• Materials for Workshop „Developling Geospatial Applications with uDig and Oracle Spatial“ including prebuilt VM for Virtual Box– http://www.oracle.com/technetwork/database/options/spatialandgraph/community/

sagsummit-2014-2196705.html

• Oracle Spatial and Graph Online Documentation on OTN (12c)– http://docs.oracle.com/database/121/nav/portal_7.htm

• Oracle Spatial Technologies on OTN– http://www.oracle.com/technetwork/database/options/spatialandgraph– http://www.oracle.com/technetwork/middleware/mapviewer




http://docs.oracle.com/database/121/nav/portal_7.htm

http://www.oracle.com/technetwork/database/options/spatialandgraph

http://www.oracle.com/technetwork/middleware/mapviewer


Social Media, Communities

• Blogs– http://oracle-spatial.blogspot.com/, http://oracle-maps.blogspot.com (DE)– https://blogs.oracle.com/oraclespatial/, https://blogs.oracle.com/oracle_maps_blog/

• Twitter– @kpatenge @cczarski

• LinkedIn– https://www.linkedin.com/groups/Oracle-Spatial-Graph-1848520?gid=1848520

• Forums– https://community.oracle.com/community/database/oracle-database-options/spatial– https://community.oracle.com/community/fusion_middleware/application_server/mapviewer


http://oracle-spatial.blogspot.com/

http://oracle-maps.blogspot.com/

http://oracle-maps.blogspot.com/

https://blogs.oracle.com/oraclespatial/

https://blogs.oracle.com/oracle_maps_blog/

https://www.linkedin.com/groups/Oracle-Spatial-Graph-1848520?gid=1848520

https://community.oracle.com/community/database/oracle-database-options/spatial

https://community.oracle.com/community/fusion_middleware/application_server/mapviewer


Events

• Save the Date!– Oracle Spatial Summit 2015 (Januar y 25-27, 2015, Oracle HQ, Redwood Shores, CA)

• http://www.oracle.com/technetwork/database/options/spatialandgraph/learnmore/spatial-events-495802.html

• Past Conference Sessions and Presentations– http://www.oracle.com/technetwork/database/options/spatialandgraph/learnmore/s

patial-presentation-idx-086691.html


http://www.oracle.com/technetwork/database/options/spatialandgraph/learnmore/spatial-events-495802.html

http://www.oracle.com/technetwork/database/options/spatialandgraph/learnmore/spatial-events-495802.html

http://www.oracle.com/technetwork/database/options/spatialandgraph/learnmore/spatial-presentation-idx-086691.html

http://www.oracle.com/technetwork/database/options/spatialandgraph/learnmore/spatial-presentation-idx-086691.html

Copyright © 2014 Oracle and/or its affiliates. All rights reserved. |

[email protected]

http://oracle-spatial.blogspot.com/Twitter: @kpatenge


Copyright © 2014 Oracle and/or its affiliates. All rights reserved. | 76LocationTech Meeting Oct 23, 2014 in Hamburg, Germany

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