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Choosing a coordinate system when data spans coordinate system zones

Question asked by fultzjason on Jul 17, 2015
Latest reply on Jul 20, 2015 by mll@johnsoneng.com

Hi all,

 

I'm curious to hear how others choose an appropriate coordinate system when creating a new feature class that has a large spatial extent and spans several zones.  Two scenarios come to mind:

 

1.  When digitizing polygons that fall in various regions across North America.  Is the correct choice to always choose a geographic coordinate system (such as WGS84) for this scenario?

2.  On a smaller scale, A Feature Class that will span a 10 mile region but spans two different state plane zones or UTM zones.  Is there a best approach for choosing which zone to use?

 

Any insight would be much appreciated.

 

Thanks!

Jason

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