Problem
Data screenshotConvert CAD drawing characteristics to GIS
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Dale’s snap demo
CAD - GIS lego bricks on all the respective demos (and on the agenda)
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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
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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
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 pointElevation lines:
● gaps● elevation as text not linked to
the lineOther 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)
DEMO 4Source DataProblem = Representing GIS data in CAD
Data in ArcMap
DEMO 4The process in reverse: GIS to CADConverting a Shape dataset of parks to MicroStationSolution: Uses cells, tags, and text
Maybe a picture of a lego dog?
Demo 5Source DataA blend of MicroStation and Lidar datasets
Demo 53D BuildingsA blend of MicroStation and Lidar datasetsSolution: Overlaying building footprints on lidar and extruding data. Writing to many formats
Maybe a picture of a lego skyscraper?
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