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Indiana University Migrating from AutoCAD to a Geodatabase Theresa Thompson ththomp@indiana

Indiana University Migrating from AutoCAD to a Geodatabase Theresa Thompson ththomp@indiana.edu. Total enrollment 2004-05 (7 campuses): 92,070 students 15,831 faculty and staff 714 buildings (7 campuses ) 26,525,251 gross sq. feet of building space 2,963 acres.

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Indiana University Migrating from AutoCAD to a Geodatabase Theresa Thompson ththomp@indiana

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  1. Indiana UniversityMigrating from AutoCAD to a GeodatabaseTheresa Thompsonththomp@indiana.edu

  2. Total enrollment 2004-05 (7 campuses): 92,070students 15,831faculty and staff 714buildings (7 campuses) 26,525,251gross sq. feetof building space 2,963acres

  3. For the Bloomington campus13 Utility SystemsChilled Water,Condensate, Communications,Electric, Exterior Lighting, Irrigation, Natural Gas, Sewer, Steam, Storm Water, Tunnel, Telephone, WaterBasemap

  4. IUB Physical Plant Utilities Utility Information Group Watchdogs of the Utility Department Documentation, GIS/GPS, Locating, and Metering for the IUB Campus

  5. Utility Information Group Covering Utility Information for the IUB Campus Indiana University

  6. AutoCAD Map linked to Access via object data

  7. GIS database

  8. Database forms

  9. Why move from AutoCAD Mapto a SDE Geodatabase environment? • Ease-of-Use for Editors • Centralized Database/Graphics Environment • Enterprise level data sharing • Easier to bring CAD into ArcGIS than GIS into CAD without conversion

  10. IU GIS system • Windows based ArcGIS 9.1 – editorsWindows ArcReader 9.1 - viewersUnix ArcSDE/Oracle for geodatabaseUnix ArcIMS for web mappingTesting ArcGIS ServerGeodatabase – IU BloomingtonData Layers = over 58 basemapover 100 utilities

  11. Data Preparation for moving from AutoCAD Map to a GeodatabaseDatabase model in placecreate a geodatabase and set up boundary polygon for spatial referencedatanaming/object/relationship standards for featuresdomain tables (lookup tables)Clean your CAD and Attribute data before you convertobjects on correct layers / CAD Standardscorrect blocks / object linkingExpect data problems: there is no “perfect conversion”

  12. Read this! http://downloads.esri.com/support/whitepapers/ao_/CAD_Translation_in_Geoprocessing_1004_J9324.pdf

  13. Approaches to converting CADCAD with no data linking but with block attributes– use Direct Read CAD file export into geodatabase (via ArcCatalog / ArcToolbox)CAD linked to database/object data – use AutoCAD Map export to shapefiles or coverage, then load into SDE/OracleCAD annotation – use ArcToolbox \ Conversion Tools \To Geodatabase \ Import CAD AnnotationCAD text or blocks linked to polygons – use ArcToolbox\ CAD Translation \ PolygonsfromCADLinesandPoints

  14. Simple CAD with no data linking but with block attributes Use Direct Read CAD file export into geodatabase (via ArcCatalog) “The direct read functionality treats the CAD file as a database of spatial features” CAD files are rich in attribute data – don’t lose this during conversion

  15. Filter out certain CAD blocks Rename field names

  16. Lists all the block names in the dwg

  17. “Text_” field = blockname Attribute fields in feature class have new field names

  18. CAD linked to database/object data – use AutoCAD Map export to shapefiles or coverage, then load into SDE/Oracle There are currently no ESRI tools out there to bring in database linked attributes via object data or link templates in AutoCAD Map AutoCAD Map 2006 has direct read capability to SDE/Oracle

  19. Narrow what you convert in AutoCAD Map by a query

  20. Make sure your data source is connected and the link templates you need are active

  21. For complex closed polylines you might need to convert to a coverage first, then geodatabase or shapefile

  22. Select both drawing property attributes and link template attributes to migrate over.

  23. Here is your chance to change the Output Field Names

  24. AutoCAD dwg property attributes and linked database attributes are now part of the converted feature class.

  25. Create a new personal geodatabase or new feature layers in SDE to import your shapefile data into

  26. your geodatabase Here is another chance to change the field names or decide not to bring in some attribute fields

  27. You can do similar functions several ways...this time you use the Export to Geodatabase command.

  28. CAD annotation – use ArcToolbox \ Conversion Tools \ to Geodatabase \ Import CAD Annotation Finally! A great tool for converting AutoCAD Text into geodatabase annotation.

  29. Preview AutoCAD text to make sure it isn’t mtext

  30. You need to explode all mtext for conversion. Set up a selection filter for only mtext, then explode this.

  31. Once you explode the mtext, save the dwg and preview again in ArcCatalog

  32. Be sure to select the dwg file annotation class for conversion

  33. You need to determine a reference scale. We use 1:5000 for our campus maps based on units of feet.

  34. This is how the converted CAD annotation looks in the geodatabase annotation feature class

  35. You will be able to edit geodatabase annotation easily in a ArcGIS edit session with Annotation edit tools

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