Campus Planning and Facilities Management at NCSU wants to incorporate a geodatabase in the management of university facilities. The issue involves integrating a CAD-based campus master plan into an ArcMap geodatabase (GDB). Due to the overlap of use of these two different software packages in many of the same industries, integration has become more standard.
The CAD drawing file had 5 features; only 2 were needed for the master plan. Since the CAD data is being used as an overlay, it had to be georeferenced to the orthophoto, as well as selecting control points, creating a world data file. The feature class to polygon tool was used for rendering lines and missing segments into complete polygons. The final was to import this into a geodatabase.
Below you can see the orthophoto with selected features overlain.
Application and Reflection
This exercise was an excellent application of how both software platforms can work together. Being able to isolate the built environment, as in this example, allows for a multitude of uses. This is a great way to look at land-use change, monitor growth or encroachment, or even municipal asset management.
There was a recent earthquake along the Iraq-Iran border and you want to utilize historical data to determine how many buildings were damaged.
(Source: Copernicus Emergency Management Services) Click for image details.
Image file for building features pre-dating the earthquake, ortho, reference or grading map of the area.
Establish a file geodatabase, georeference the data, set control points in the reference image, use the feature class to polygon tool to complete polygons. If needed, export some features to the geodatabase with the feature class to feature class tool.