Change Coordinate System from Field Verified Data

BenjaminSmith_McRobie2 — Mon, 15 Jun 2020 14:09:56 GMT

Hello All!

I have a little dilemma, we inherited field verified data sets, and the data was collected using a World Coordinate System rather than a state plane that we've been using in our GIS. I want to be able to run topology rules but I am unable to because of the field verified datasets having a different GCS than the data I've been working with.

Is there any way that the coordinate system and projections of the field verified data can be changed to what I've been using? My hope is that I can change the projection and GCS of the field verified data to match the correct GCS I've been using without moving the data points.

I have tried just changing the projection using Define Projection but that moves the points.

I have been working with this GCS and projection:

Projected Coordinate System: NAD_1983_StatePlane_Pennsylvania_South_FIPS_3702_Feet

Projection: Lambert_Conformal_Conic

False_Easting: 1968500.00000000

False_Northing: 0.00000000

Central_Meridian: -77.75000000

Standard_Parallel_1: 39.93333333

Standard_Parallel_2: 40.96666667

Latitude_Of_Origin: 39.33333333

Linear Unit: Foot_US

Geographic Coordinate System: GCS_North_American_1983

Datum: D_North_American_1983

Prime Meridian: Greenwich

Angular Unit: Degree

And this is what the data was collected with:

Projected Coordinate System: WGS_1984_Web_Mercator_Auxiliary_Sphere

Projection: Mercator_Auxiliary_Sphere

False_Easting: 0.00000000

False_Northing: 0.00000000

Central_Meridian: 0.00000000

Standard_Parallel_1: 0.00000000

Auxiliary_Sphere_Type: 0.00000000

Linear Unit: Meter

Geographic Coordinate System: GCS_WGS_1984

Datum: D_WGS_1984

Prime Meridian: Greenwich

Angular Unit: Degree

Any and all help is appreciated!

-Benjamin

Re: Change Coordinate System from Field Verified Data

BojanŠavrič — Mon, 15 Jun 2020 18:54:34 GMT

Define Projection tool should only be used to assign CS information when data has unknown or incorrect coordinate system. It does not change the coordinates therefore your data moves. To convert (change coordinates) of your data to some other CS, you should use Project tool.

topic Re: Change Coordinate System from Field Verified Data in Map Projections Questions

Change Coordinate System from Field Verified Data

Re: Change Coordinate System from Field Verified Data