microstation dgn: how to integrate cad and gis
DESCRIPTION
See how to move data between Bentley MicroStation and GIS solutions like Esri ArcGIS, Intergraph and MapInfo. Go beyond basic CAD / GIS conversion and see how to transform MicroStation cells, text, lines, symbology, tags, etc exactly as needed. Plus see how to reproject to any coordinate system and use automated techniques to handle database links and provide self-serve data collection and validation services.TRANSCRIPT
Problem
Data screenshotConvert CAD drawing characteristics to GIS
Photo: @cdharrison via Flickr
Dale’s snap demo
CAD - GIS lego bricks on all the respective demos (and on the agenda)
Photo: kennymatic via Flickr
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
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?
Photo: avrene via Flickr