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trying to project nad 83 to google map's pr...   susan ring Aug 13, 2009
Re: trying to project nad 83 to google map'...   Melita Kennedy Aug 14, 2009
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Subject trying to project nad 83 to google map's projection 
Author susan ring 
Date Aug 13, 2009 
Message Hi
I defined the shp file to
Projected Coordinate System: NAD_1983_StatePlane_California_V_FIPS_0405_Feet
Projection: Lambert_Conformal_Conic

Linear Unit: Foot_US


first a defined the shp file with the same coordinates

next, i chose

Geographic Coordinate System: GCS_WGS_1984
Datum: D_WGS_1984
Prime Meridian: Greenwich
Angular Unit: Degree

then the geographic transformation to 1983_1


the problem: it is still in the same location in the nad 83 coordinates.

anyway the main objective is to get it to google maps. or use their API.

am I missing a step?

your help is appreciated.
thanks 
   
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Subject Re: trying to project nad 83 to google map's projection 
Author Melita Kennedy 
Date Aug 14, 2009 
Message The NAD_1983_To_WGS_1984_1 transformation doesn't do anything. It's from the time when NAD83 and WGS84 were almost equivalent. It can still be used when data's accuracy is worse than 1-2 meters.

The NAD_1983_To_WGS_1984_5 is a much more current transformation (assumes WGS84 is approximately ITRF00 and NAD83 re-adjusted to CORS96 or HARN).

Melita 
  Melita Kennedy
ESRI Product Specialist