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Cartographic Database Optimizing TIGER data for Mapping Connie Beard Chief, Cartographic Products Branch. Our Spatial Databases. MAF/TIGER Database (~2 TB) Benchmark Database (~1.6 TB) Product Database (~364 GB) Cartographic Database (~75 GB).
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Cartographic Database Optimizing TIGER data for Mapping Connie BeardChief, Cartographic Products Branch
Our Spatial Databases • MAF/TIGER Database (~2 TB) • Benchmark Database (~1.6 TB) • Product Database (~364 GB) • Cartographic Database (~75 GB)
Cartographic Database (CDB) What Why How
What • Feature Type Tables • Based on TIGER and PDB • Extended Attribution • Link to TIGER Topology • Extensive Geospatial processing
Using the Cartographic Database Benchmark DBs Live MAF/TIGER DB CAMPS Application Census Automated Map Production System Cartographic DBs Product DBs
Why Data Visualization
Why Entity Based
Why Lots of Maps
HOW Topology Denormalize Classify Generalize Extend
How Spatial Processing Using Topology
Chaining Using Topology SELECT topo_id AS edge_id FROM mt_relation$ WHERE tg_layer_id = 1101 AND topo_type = 2 AND tg_id = 1105; SELECT start_node_id, end_node_id FROM mt_edge$ WHERE edge_id IN (8,9);
Future Plans • Integration of Oracle Spatial with COTS GIS software • Integrate Generalized Coordinate Representations • Adding features • Performance Enhancement • User-defined Cartographic DataBase
Questions? Cartographic Products Branch 301-763-1101 constance.beard@census.gov nick.a.padfield@census.gov