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Introducing the NC OneMap Data Explorer!

Mar 2

Written by:
3/2/2012 3:12 PM  RssIcon

The Data Explorer is a map-based application that enables users to intuitively search for, discover and view geospatial data.  The search results in the Data Explorer are the same ones found in the Geospatial Portal, but you may also add web services directly to the new online map. 

Features of the Data Explorer:
  • A simple layout with a large map window helps bring discovered data into focus
  • A “Details” button enables you to turn data layers on or off, and also displays a map legend
  • Select a base map of your choice
  • Search for data in the Data Explorer (or Geospatial Portal) and, if the results contain an "Add To Map" link, add it directly to the map view
  • The lower left section of the map view includes a box showing the coordinate values as the cursor is moved and a scale bar
  • The Data Explorer uses the Web Mercator projection to accommodate data from other sources that would not be available if the projection were State Plane coordinates 
  • Add your own ArcGIS or OGC WMS map/image service (or any service that is not available from the Geospatial Portal)

The old NC OneMap viewer has been retired.  The new Data Explorer is a vital addition to NC OneMap to serve statewide users with the best available geospatial data. Additional functions for the Data Explorer will be included in the next release later this year.

Review by the NC Geographic Information Coordinating Council’s Technical Advisory Committee found that the Data Explorer is “very fast and very responsive …easy to use …and is based on good technical decisions about the tools, base layers, and projections.”  

The Data Explorer is available at It is also accessible by clicking on "Map Viewer" in the NC OneMap Geospatial Portal, as seen below:

Keep in mind that not all search results are viewable on the Data Explorer map. Only those results that are map or image services can be viewed, as evident in the “Add to Map” link below the search result title.

So, please give the new NC OneMap Data Explorer a try.  As always, we welcome and appreciate your feedback.

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