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CADD – Geocoordination – GIS

CADD – Geocoordination – GIS. Keith Raymond Bentley Canada. GIS for CAD and BIM users. Topics Geocoordination Georeferencing CAD data Integration with GIS Reference Import Export Promoting CAD data to GIS. Define a GCS for a DGN file.

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CADD – Geocoordination – GIS

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  1. CADD – Geocoordination – GIS Keith Raymond Bentley Canada

  2. GIS for CAD and BIM users • Topics • Geocoordination • Georeferencing CAD data • Integration with GIS • Reference • Import • Export • Promoting CAD data to GIS

  3. Define a GCS for a DGN file • Tools –> Geographic –> Select geographic coordinate system • Select GCS from dialog and assign to DGN • Only useful if DGN is in the correct geographic space • Benefit • Easier GIS, Google Earth integration • Better interoperability in multi-GCS project

  4. Georeferencing CAD data • CAD data typically is referenced to a local coordinate system • MicroStation has tools to create a local coordinate system that will convert to a geographic coordinate system • Advantage • CAD data can take advantage of GIS data, Google Earth integration

  5. Interoperability • Many GIS sources • Oracle Spatial • SQL Server Spatial • Esri SHP • MapInfo MID/MIF, TAB • CSV • GML • WFS • Benefit • Take advantage of data in many forms • Conversion not necessary in many cases

  6. Promoting CAD to GIS • Simple features can be promoted to intelligent GIS features easily • Using the Promote tool • Using Dynamic Feature Scoring • Benefit • Easily incorporate CAD accurate data into GIS • No redigitizing

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