topic Re: Adding Coordinates Changes Map Projection in ArcGIS Pro Questions

Adding Coordinates Changes Map Projection

MacallHock — Sun, 25 Aug 2024 20:23:07 GMT

Hi. I am trying to add my csv file of coordinates to a ArcGIS Pro map but every time it changes the projection of the map and makes it look weird. I have tried a few different things for setting the coordinate system and nothing works. I have also checked that coordinate system of my base map is the same as my added coordinates are the same and they are. I'm not sure what else to try.

Re: Adding Coordinates Changes Map Projection

DanPatterson — Sun, 25 Aug 2024 20:53:23 GMT

an example of a row of coordinates?

what is the coordinate system?

Have you mixed up Longitude (x) and latitude (y) if they are geographic coordinates?

Re: Adding Coordinates Changes Map Projection

MacallHock — Sun, 25 Aug 2024 22:01:36 GMT

Name Latitude DD Longitude DD
MC2U1 70.442873 -156.480138
MC2U2 70.442878 -156.479957
MC2U3 70.442963 -156.480008
MC2U4 70.442956 -156.480018
MC2U5 70.442976 -156.480183

Heres a few lines of the coordinate data. I'm very new to ArcGIS but I'm pretty confident I have not switched up the x and y. Thanks!

Re: Adding Coordinates Changes Map Projection

DanPatterson — Mon, 26 Aug 2024 00:14:06 GMT

Change the row names to remove spaces.

eg Name, Latitude_DD, Longitude_DD

Your file is space delimited and not comma-delimited, It would be best to use a comma-delimited file so if you have the original source of the data (eg from a spreadsheet) export it as such.

Take a look at the section on creating points from a csv file in....

Create points from a table—ArcGIS Pro | Documentation

Your data are indeed geographic coordinates probably with a WGS84 data, so define it as such.