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MicroStation DGN: How to Integrate CAD and GIS

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This document discusses converting CAD data to GIS formats and some of the challenges involved. It describes problems with representing parcel/block boundaries and attributes when converting CAD data to GIS and shows the workflow and outputs. It also details issues with converting elevation points and lines from CAD formats where the elevation is stored as text not linked to the features. The document proposes solutions like representing the data as 3D points and lines in GIS and meeting specification requirements. Later sections discuss converting GIS data to CAD formats and blending MicroStation and lidar datasets to model 3D buildings.

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MicroStation DGN: How to Integrate CAD and GIS
MicroStation DGN: How to Integrate CAD and GIS
MicroStation DGN: How to Integrate CAD and GIS
MicroStation DGN: How to Integrate CAD and GIS
Photo: @cdharrison via Flickr Problem Data screenshot Convert CAD drawing characteristics to GIS
MicroStation DGN: How to Integrate CAD and GIS
MicroStation DGN: How to Integrate CAD and GIS
Dale’s snap demo CAD - GIS lego bricks on all the respective demos (and on the agenda) Photo: kennymatic via Flickr
MicroStation DGN: How to Integrate CAD and GIS
CAD vs. GIS CAD GIS Layers/Levels Complex data structure No or limited user attributes User attributes Visual attributes Limited or no visual attributes Annotations Coordinate Systems Photo: mac_filko via Flickr
MicroStation DGN: How to Integrate CAD and GIS
CAD to GIS: Parcels and Blocks: source data Problems: ● Parcel/block boundaries Parcel/block polygons ● Parcel/block numbers as text features Parcel/block numbers as user attributes
MicroStation DGN: How to Integrate CAD and GIS
CAD to GIS: Parcels and Blocks: workspace
CAD to GIS: Parcels and Blocks: output
Photo: Will Merydith via Flickr
Photo: pasukaru76 via Flickr
Photo: DidWee via Flickr
Photo: DidWee via Flickr
CAD to GIS: Topo Map: source data Problems: Elevation points: ● 2D ● circles ● elevation as text not linked to the point Elevation lines: ● gaps ● elevation as text not linked to the line Other features: ● all on the same level ● cell names and linestyle names for classification ● need to meet spec requirements (e.g. coded domain)
CAD to GIS: Topo Map: elevation points Elevation points: ● 2D ● circles ● elevation as text not linked to the point
CAD to GIS: Topo Map: elevation lines Elevation lines: ● gaps ● elevation as text not linked to the line
CAD to GIS: Topo Map: feature classification Other features: ● all on the same level ● cell names and linestyle names for classification ● need to meet spec requirements (e.g. coded domain)
MicroStation DGN: How to Integrate CAD and GIS
DEMO 4 Source Data Problem = Representing GIS data in CAD Data in ArcMap
DEMO 4 The process in reverse: GIS to CAD Converting a Shape dataset of parks to MicroStation Solution: Uses cells, tags, and text Maybe a picture of a lego dog?
Demo 5 Source Data A blend of MicroStation and Lidar datasets
Demo 5 3D Buildings A blend of MicroStation and Lidar datasets Solution: Overlaying building footprints on lidar and extruding data. Writing to many formats Maybe a picture of a lego skyscraper?
Photo: avrene via Flickr
MicroStation DGN: How to Integrate CAD and GIS
MicroStation DGN: How to Integrate CAD and GIS
MicroStation DGN: How to Integrate CAD and GIS
MicroStation DGN: How to Integrate CAD and GIS

More Related Content

MicroStation DGN: How to Integrate CAD and GIS

  • 5. Photo: @cdharrison via Flickr Problem Data screenshot Convert CAD drawing characteristics to GIS
  • 8. Dale’s snap demo CAD - GIS lego bricks on all the respective demos (and on the agenda) Photo: kennymatic via Flickr
  • 10. CAD vs. GIS CAD GIS Layers/Levels Complex data structure No or limited user attributes User attributes Visual attributes Limited or no visual attributes Annotations Coordinate Systems Photo: mac_filko via Flickr
  • 12. CAD to GIS: Parcels and Blocks: source data Problems: ● Parcel/block boundaries Parcel/block polygons ● Parcel/block numbers as text features Parcel/block numbers as user attributes
  • 14. CAD to GIS: Parcels and Blocks: workspace
  • 15. CAD to GIS: Parcels and Blocks: output
  • 16. Photo: Will Merydith via Flickr
  • 20. CAD to GIS: Topo Map: source data Problems: Elevation points: ● 2D ● circles ● elevation as text not linked to the point Elevation lines: ● gaps ● elevation as text not linked to the line Other features: ● all on the same level ● cell names and linestyle names for classification ● need to meet spec requirements (e.g. coded domain)
  • 21. CAD to GIS: Topo Map: elevation points Elevation points: ● 2D ● circles ● elevation as text not linked to the point
  • 22. CAD to GIS: Topo Map: elevation lines Elevation lines: ● gaps ● elevation as text not linked to the line
  • 23. CAD to GIS: Topo Map: feature classification Other features: ● all on the same level ● cell names and linestyle names for classification ● need to meet spec requirements (e.g. coded domain)
  • 25. DEMO 4 Source Data Problem = Representing GIS data in CAD Data in ArcMap
  • 26. DEMO 4 The process in reverse: GIS to CAD Converting a Shape dataset of parks to MicroStation Solution: Uses cells, tags, and text Maybe a picture of a lego dog?
  • 27. Demo 5 Source Data A blend of MicroStation and Lidar datasets
  • 28. Demo 5 3D Buildings A blend of MicroStation and Lidar datasets Solution: Overlaying building footprints on lidar and extruding data. Writing to many formats Maybe a picture of a lego skyscraper?

Editor's Notes

  1. Add Regan and arrows
  2. Extracting attributes from CAD Making the CAD data fit into GIS specs (including geom cleanup) Creating attractive CAD drawings from GIS data Representing GIS intelligence in CAD drawings Other (please chat)
  3. CAD to GIS: Parcels and Blocks: source data
  4. CAD to GIS: Parcels and Blocks: workspace
  5. CAD to GIS: Parcels and Blocks: output