Tips and Tricks

Hosted Feature Services: Did you know?

Feature services can be used as input features when running analyses.  That’s right, while using analysis tools such as clip or buffer, just point to a RIGIS feature service as the features to be clipped, buffered, or as the clip “cookie cutter.”  These data do not need to be downloaded;  you work with them directly from the hosted environment on ArcGIS Online. I am using ArcGIS Pro to describe this operation but the similar process would apply to ArcMap as well.
Example: Clip feature service using local area of interest polygon data.
  • Add the hosted feature service – Flood Hazard Area to the map.
  • Add local polygon data to use as the ‘cookie cutter’ in the clip operation.
  • Clip Flood Hazard Area (WGS1984) with local polygon data set (SPF NAD83).

IMPORTANT: Use the Environments settings available in the tool to set the output coordinate system and specify the geographic transformation to use.

If an output coordinate system is not set, the output data will be in the coordinate system of the hosted feature service, for RIGIS this is GCS WGS 1984.

The clipped polygon result is written to your local drive.
Example: Buffer selected polygons within the Flood Hazard Area hosted feature service.
  • Add the hosted feature service – Flood Hazard Area to the map.
  • Select the features to be buffered.
  • Buffer the selected Flood Hazard Area polygons (WGS1984).
IMPORTANT: Use the Environments settings available in the tool to set the output coordinate system and the geographic transformation to use. See the image above.  If the output coordinate system is not set, the output data will be in the coordinate system of the  hosted feature service being buffered,  for RIGIS this is GCS WGS 1984 The buffer result is written to your local drive without having to download the data set. What an easy way to use RIGIS data without having to download the statewide data set. 
ArcGIS Pro: How do I add that feature service?
  • Add Data: Browse to Portal > All Portal
    • This allows a search of all public feature services available within ArcGIS Online, including RIGIS data.
  • In the Search bar type, RIGIS.
  • Add the feature service to the map.
    • These data are in GCS WGS 1984.
For more about RIGIS coordinate systems, see this blog RIGIS open data coordinate systems