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Reprojecting to Web Mercator

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08-24-2016 01:26 PM
DavidRobinson7
Deactivated User

I have the Census TIGER/Line state boundaries, which I am trying to reproject to resemble more commonly held perceptions of state boundaries (i.e. Google maps).  The TIGER/Line data is currently projected in:

Projected Coordinate System: Hawaii_Albers_Equal_Area_Conic
Projection: Albers

I am trying to reproject to WGS 1984 Web Mercator (auxiliary sphere), which from my research I understand to be the projection used by Google.

The reprojection tool runs successfully; however, the output looks the same as the input (stretched boundaries as compared to Google maps).  I've spent an hour or two researching the best way to accomplish this particular task, but I'm not coming up with answers that have worked.

Advice is much appreciated!

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21 Replies
DavidRobinson7
Deactivated User

Hi Melita,

Thanks for your help.

The data is public.  The data can be found here:  ftp://ftp2.census.gov/geo/tiger/TIGER2016/STATE/

Extents:

Top:  49.384358 m

Bottom:  24.396308

Left:  -124.848974

Right:  -66.885444

^ that doesn't really make sense to me?

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MelitaKennedy
Esri Notable Contributor

Thank you, David! Those are decimal degree values, so the data's in NAD 1983 (4269 is the well-known ID, WKID). I'm not sure how it ended up with a Hawaii Albers definition! Either use the Define Projection tool, or the data's property page in Catalog to update the coordinate system. This will update the metadata only, not the coordinate values.

Hope this helps!

Melita