topic Re: projection and extend in Data Management Questions

projection and extend

BahareSanaie-Movahed — Fri, 09 Jun 2017 15:55:48 GMT

I imported projections for a shapefile with unknown reference, but it doesn't sit on top of the layer which I imported the coordinate info from. The extend shows two different values! Do I need to change the projection, any suggestion for Massachusetts data? Any solution please? Thanks in advance.

Re: projection and extend

JakeSkinner — Fri, 09 Jun 2017 16:55:21 GMT

Hi Bahare,

You will need to use the Define Projection tool to define the coordinate system of what the shapefile was created in. Here is support article that discusses how to find this coordinate system:

How To: Identify an unknown projected coordinate system using ArcMap

Re: projection and extend

ChrisCatania — Fri, 09 Jun 2017 21:12:34 GMT

Hi Bahare - Thanks for asking your questions! I wanted to let you know that we're moving your question to the https://community.esri.com/community/gis/managing-data?sr=search&searchId=fc157cdb-db10-43c7-a25b-4c965f38d4da&searchIndex=0‌ space so our Esri and user subject matter experts can further help answer this and future questions. So you're aware on how and where to post your questions, here's a few quick tips and reminders:

First, use the GeoNet search (top right corner by your profile icon) to search and see if your question has already by asked/answered previously.

If not, than we suggest reviewing the GeoNet Community Structure, to find the most relevant space to post your question.

The GeoNet GeoNet Help group is for questions and tips on how to use the GeoNet community platform not the Esri ArcGIS platform. Following steps 1 & 2 above will give you the best results for getting Esri product questions answered.
This GeoNet 101 "How to Ask Questions on GeoNet" post is also a helpful guide to asking questions: https://community.esri.com/community/help-and-feedback/blog/2016/08/15/community-news-and-tips-how-to-ask-questions-and-get-answers

Thanks again for contributing and I hope this helps and let us know if you have any questions.