Know the EarthShow the Way GEOSECTIONING DNC Data

Know the Earth…Show the Way GEOSECTIONING ® DNC Data Prototype and Development Project Phase V David Turnbull 03 May 2006 NGA Hydro. Vision Production Cell NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Goals of Effort • Have an in-house automated capability to convert DNC® data into a one-feature-onetime format to easily incorporate into any database. • Create and demonstrate a new prototype version of the DNC® where it is one-featureone-time. • Gain the many side benefits created by having these automated tools. 2 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Concepts • • Geo-sectioning One Feature One Time New Attribution to DNC® Generalization and SCAMIN Common tile sizes Common Schema Libraries based on one or more 1 degree tiles 3 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY SCAMIN (Scale Minimum) • SCAMIN is used in some degree with the international community with S-57. • SCAMIN is the least scale in which a feature should be portrayed • Currently based mostly on HACG scale ranges – Harbor: 0 -49, 999 – Approach: 0 -99, 999 – Coastal group 1: 0 -249, 999 – Coastal group 2: 0 -499, 999 – General: 0 -2, 500, 000 4 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Loaded 29 CDs into single Database • Development with Laser-Scan, Inc. (LSI) which gave Lamps 2 an automated mass importer of DNC® CDs into a Gothic Object-Oriented (OO) Database • Loaded all 29 CDs into individual databases within the database in the NGA Hydro. Vision Production Cell (NPC). • A single CD can be imported with a few clicks– average time for a CD: 40 minutes • NPC has the latest of all the CDs loaded into the Gothic database • Also can run batch processing on multiple libraries 5 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Propagated Into Single Dataset • Chose the entire DNC 17 since we had been maintaining it (last 3 phases as well) • All DNC 17 data brought into a single dataset using a fully automated tool created within Lamps 2 6 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY New Attributes Added During Feature Propagation • New attribution is per individual feature or object and added automatically • New attributes: – Library Name-Name of the original library • “DNC 17_h 1708210_Baltimore” – Chart Identifier-Chart number feature came from – Chart Edition Number-Edition of Chart – Chart Scale (NEW FOR THIS PHASE) – Hydrographic Datum (soundings only) 7 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Geo-sectioned and Generalized Data • Originally manual • Now fully automated process (one click) – Step 1 -initial SCAMIN attribute created and populated per feature based on library type. – Step 2 - Pub Aid Number and Pub Number attributes added and populated from Text Attribute for Buoys, Beacons, and Lights – Step 3 -Uses the Data Quality Areas (DQY) to spatially select the features and splits all line and area features at DQY boundaries. 8 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Geo-sectioned the Data (2) – Step 4 - Process features by DQY and search within a defined radius to see if there are matching features of smaller scale. If there are, the SCAMIN attribute value is replaced with the smaller scale. (Point features only) • Lights-Additionally compares Publication Aid Number (PAN) and Range. If the range is not equal it looks at the PAN. If the PANs are equal it is a matching feature. If the PANs are not equal it produces a new QR light feature so that the compiler can visit it and determine if it is a different light or an error. 9 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Geo-sectioned the Data (3) – Step 5 -Deletes unwanted, smaller scale, overlapped features. • Only the best scale features are kept within the DQY. • The data is now one-feature-one-time in a single dataset 10 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Created the New Tiles • Created Tiles within the new dataset using automated tile creator developed in the NPC using LULL, all tiles 1 x 1. • Areas which originally covered Harbors and Approach Datasets are now based on a 1 x 1 degree tile scheme. • Coastal and General areas are a maximum of 3 x 3 deg and a maximum of 9 1 x 1 deg tiles. • Tiles do not overlap, libraries do not overlap • Split data along new library boundaries (auto) 11 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY New Datasets Based on Tiles • Each library will be made up of either 1 or many tiles up to a max of 9. • DNC 17 divided into 246 tiles, 60 datasets • The new datasets are named incorporating the tile name, ex: h 17 hjfk – the h so that it will meet spec. All libraries start with h (easier for us to code for now) – 17 for DNC 17 – hjfk for the tile that makes up the library 12 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY New Libraries For DNC 17 13 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Propagated Data to Datasets • Spatially queried each tile area and propagated the data from the single master dataset into each new tile library • Now fully automated for this phase 14 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Modified Files for Export • Changed export scripts to effect all libraries to be exported • Allows for export of the new attributes and tile sizes, now automated • Easy to modify the code/schema to accomplish this. 15 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Exported Data • All 60 libraries exported without viewing errors. • A cleanup process would be needed if we were to use it for production (edge-matching) • New attributes appeared properly structured within the VPF tables. • Created a Browse for the libraries (now automated) • Cut a CD of the new Prototype IV for DNC 17. 16 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Test on ECDIS platforms • Gave to SPAWAR to modify COGENT to view the data and utilize SCAMIN. – Data views utilizing SCAMIN. • Load into various ECDIS platforms – FUND: Testing – ECPINS®: Testing – ICE: Testing – VMS: Testing 17 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Demonstration of SCAMIN • Created customized code within Lamps 2 to demonstrate the SCAMIN value being used to “thin out” the visible data when zooming out/in. • Proof of concept, the ECDIS would have to be modified to utilize the SCAMIN attribute as SPAWAR has. 18 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Depth Distribution 19 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY 500, 000 view 20 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY 250, 000 view 21 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY 100, 000 view 22 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY 50, 000 view 23 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY 25, 000 view 24 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY 10, 000 view 25 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Benefits • We now can go to one-feature-one-time automatically in-house in order to populate the future NDME or NGA databases. • Proved that adding new attributes to the data properly will not kill the ECDIS functionality. • Size of the data on a CD is smaller. – Normal DNC 17= 415 MB – Geo-sectioned DNC 17= 274 MB • No duplication in collecting. 26 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Side Benefits • Have used it already for the foundation for the EPODS effort to supply one-feature-one-time data • Have used it to supply custom datasets to several customers (NAVO, TRANSCOM, HYSAS) • Utilized tools to create a One-Feature-One-Time Global DNC® coastline. • In process of using tools to create an Arc. Globe global DNC® model. 27 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY What is next…Phase V • Further testing on ECDIS platforms • Finish display methods in Lamps 2 to utilize the SCAMIN values for lines and areas. • Possibly Adding Chart limit feature class for Hardcopy. • Possibly creating a model using more SCAMIN bands similar to the IHO models • Possibly incorporating new agreed upon attributes from DNC 2/Data Model/S 57 efforts 28 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY QUESTIONS? 29 Know the Earth…Show the Way

NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Know the Earth…Show the Way 30 Know the Earth…Show the Way