Layer's don't match / Wrong Projection?

[AnjaWietholter]

I have a table with geocoded Lat/Long Values that I want to add as point features to my map. However when I add the table and add X/Y data (Tools-Add X/Y data) the data is added to the map but the projection doesn't match up. I did compare the coordinate systems and they appear to be the same whoever the extent doesn't match up.

My Shapefile with the Lat/Long Points has similar values in projected coordinates compared to the decimal degrees which leads me to believe it doesn't project?

Here is an example. My Zip Code layer in decimal degrees:
West: -117.597982
East: -116.080157
North: 33.511553
South: 32.530161

In projected or local coordinates:
Left: 6150765.000000
Right: 6613436.500000
Top: 2129760.000000
Bottom: 1775304.125000
NAD_1983_StatePlane_California_VI_FIPS_0406_Feet

And my XY layer that doesn't match:

Decimal:
West: -136.179977
East: -136.179964
North: 25.945595
South: 25.945576

In projected or local coordinates:
Left: -117.388904
Right: -116.371055
Top: 34.517990
Bottom: 32.543795

NAD_1983_StatePlane_California_VI_FIPS_0406 also

I tried about everything. If somebody could help me with this it would be GREATLY appreciated.

[NeilAyres]

Derek,
looking at that list of coordinates, it appears to be Lat / Long.
ie the first column is +30 odd deg , and the second column is -85 odd deg.
So when adding XY table, specify the X, Y the other way round and define the projection as GCS_WGS84 (plain geographic cords, not Web Aux). Having a quick look at my world map, these points are somewhere in Florida.
Good luck,
Neil

[VickyNinjar]

Hi! I have a similar issue and tried many of the proposed solutions but nothing seems to be working for me. Hope you'll be able to help. 

I have 2 shapefiles, one polygons and the other points. 

- The polygons are from city of Mtl open data portal (city's neighbourhoods): Limite administrative de l'agglomération de Montréal (Arrondissement et Ville liée) - LIMADMIN_shp -... 

- The points are insideairbnb data for the city: Get the Data - Inside Airbnb. Adding data to the debate. 

For some reason, I can't get the data aligned. My latest try was to put all of them in GCS_WGS_1984. 

The city's shape is returning: 

Left: -73.996603 dd

Right:-73.473866 dd

Top: 45.707579 dd

Bottom:45.385402 dd

Airbnb data are returning: 

Left: -142.428442 dd

Right:-142.428440 dd

Top: 16.275957 dd

Bottom:16.275954 dd

It's obvious they are not in the same range at all but I have no idea of how to solve this. Can you help please? 

Thanks!! 

-Vicky (not an GIS-expert!)

BTW. I've also tried using NAD83 with no success.

[DarrenWiens2]

The city's extent at least appears to be in the correct coordinate area. The Airbnb data seems to have been brought in incorrectly. I downloaded the listings csv and it has the correct coordinates (latitude ~45dd). Try bringing it in again from the csv, specifying WGS84 when you do so. 

[VickyNinjar]

OMG! It's working!!! I've been trying to do this forever. So the only difference I can see is that I was importing from an excel file. Is that why? I don't get it really. But thank you so much

-Vicky

[PinelopiTrapezanlidou]

Hellow!

I am facing a problem like most of yours,

I have 2 shapefiles with the same coordinate system but I they don't seem to overlap.

The 1st is a point shapefile :

extent :

Top :612130,629897 m

Bottom: 606825,613838 m

Right: 192545,576475 m

Left: 167607,007256 m

Projected Coordinate System:    RD_New
Projection:    Double_Stereographic
False_Easting:    155000,00000000
False_Northing:    463000,00000000
Central_Meridian:    5,38763889
Scale_Factor:    0,99990790
Latitude_Of_Origin:    52,15616056
Linear Unit:     Meter

Geographic Coordinate System:    GCS_Amersfoort
Datum:     D_Amersfoort
Prime Meridian:     Greenwich
Angular Unit:     Degree

The 2nd is a polygon shapefile (map):

extent :

Top : 53,554459 m

Bottom: 50,755165 m

Right: 7,292710 m

Left: 3,361904 m

Projected Coordinate System:    RD_New
Projection:    Double_Stereographic
False_Easting:    155000,00000000
False_Northing:    463000,00000000
Central_Meridian:    5,38763889
Scale_Factor:    0,99990790
Latitude_Of_Origin:    52,15616056
Linear Unit:     Meter

Geographic Coordinate System:    GCS_Amersfoort
Datum:     D_Amersfoort
Prime Meridian:     Greenwich
Angular Unit:     Degree

I hope you can help to find what is going wrong.

Peny

[NeilAyres]

In your 2nd shapefile, those extent values look nothing like the extents in the first (very small numbers).

I would suggest the the second one is not in fact actually in a projected RD_New system, but has simply been defined like that.

It looks to me as if the actual coord sys is really GCS (geographic)

[PinelopiTrapezanlidou]

Yes, it seems like that. Is there anything that I can do to convert it into RD_new?

[JayantaPoddar]

Define a new projection to the shapefile using Define Projection geoprocessing tool.

For the coordinate system, choose an appropriate Geographical Coordinate System (e.g. GCS_WGS_1984 or GCS_Amersfoort, whichever positions your map correctly).

[MelitaKennedy]

Hello Pinelopi, 

Follow Jayanta's steps below--use the Define Projection tool to reset/redefine the coordinate system to WGS84 or Amersfoort. Once that's done, you can use the Project tool to make a copy of the data that's georeferenced to RD_New.

Melita

[PinelopiTrapezanlidou]

Thank you all, for your help!

My problem has been solved!