lat and long

[francescarusso]

Hi all,

I reckon I have lots of gaps about carthography but normally I do not struggle too much in converting coordinates.

I have to plot some coordinates in ARCGIS.

They are in the format below:

43°31.4, 1°46.4

First of all if I tried to add a point (using Go to XY tool) into GIS just to see where these coordinates are it show them in the wrong place.

Normally when I want to convert coordinates in easting and northing to be able to plot them in GIS I do:

(min/60)+degree

If I do the above conversion it gives me the metres and if I plot them in GIS they are shown exactly where the other "Go to XY" shows me.

That is why I believe my conversion is ok.

What should the problem be?

I am really confused and I do not know any other trick to make the job

Many thanks

F

[ChristopherMcClain]

Did you specify the format as Degrees Decimal Minutes in the Go to XY tool?

[francescarusso]

Yes I have.

I find strange that  either the Go To XY tool and my conversion are working the same and taking me to the wrong place...

[ChristopherMcClain]

Where did the coordinates come from?  If you choose the Identity tool and click on where the point is supposed to be what is the location given?  Do you have a the correct spatial reference defined for your map?

[AbdullahAnter]

Why do you want to convert your coordinate to use Go To XY tool, if you can change the unit in the tool itself?

[MelitaKennedy]

How far off are they? If you identify/click where the point should be, what are the coordinates?

They're still in degree, by the way, not meters.

[JayantaPoddar]

Ensure the coordinate system of the Data frame is a Geographic Coordinate System (like GCS_WGS_1984).

Also ensure the notation is correct.

Longitude/X: East is + while West is -

Latitude/Y: North is + while South is -

[francescarusso]

Thank you everyone.

As I said I have lots of gaps in carthography so because I was desperate yesterday before your comments came in I tried to put a " - " up front the coordinates 1°46.4.And it did work!

I was able to do the job as my coordinates where just 8 vertices of a polygon but my question is: If I have many coordinates like the above (with a N and W), how can I convert them in metres all together?( rather than identifying one by one with the Go To XY tool)

Many thanks for all your useful suggestions and tips.

Cheers,

F

[DanPatterson_Retired · Accepted solution]

perhaps convert-coordinate-notation it exists for arcmap and PRO but it only works on data in a table

[JayantaPoddar]

You could use Convert Coordinate Notation with appropriate Coordinate Format.

Once you get the point feature class, you could reproject it into a projected coordinate system (UTM, Web-Mercator, etc.) whose units are in Meters.