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Keith RaymondBentley Canada

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• Topics– Geocoordination– Georeferencing CAD data– Integration with GIS

• Reference• Import• Export

– Promoting CAD data to GIS

GIS for CAD and BIM users

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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

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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

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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

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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