topic Re: lat&long in ArcGIS Hub Questions

lat&long

GERTISEDO — Mon, 16 Apr 2018 08:32:21 GMT

I have table with point on UTM system and i want to save on lat&long system

what can i do for more attach file... (help with image for save on lat&long)...

Re: lat&long

XanderBakker — Mon, 16 Apr 2018 12:58:31 GMT

First of all you need to know what UTM zone the coordinates correspond to:

source: https://i.stack.imgur.com/8f5Fe.jpg

Depending the software that you have available there are many options to translate the coordinates to Lat Lon. Another question is in what format you you want the result (another text file or a point featureclass)?

Re: lat&long

GERTISEDO — Mon, 16 Apr 2018 13:30:23 GMT

yes of course i know its 34T but i want to save on lat&log ect...

i am ok UTM but on lat and long ei have problem ...

Re: lat&long

XanderBakker — Mon, 16 Apr 2018 13:59:25 GMT

And what about the software that you have access to? Desktop (ArcMap or ArcGIS Pro) or perhaps ArcGIS Onlinel? This is important to know to be able to provide a solution that will work for you.

Re: lat&long

GERTISEDO — Mon, 16 Apr 2018 14:07:32 GMT

arcmap 10.4.1

Re: lat&long

RobertBorchert — Mon, 16 Apr 2018 14:21:41 GMT

Quick and simple.

Create Columns for X and Y make them double.

then in ArcMap right click on the column and calculate geometry.

Use the coordinate system of the features you want in lat long.

but in the drop down menu select Decimal Degrees. this will create XY values for your UTM 34T

Or to make it even more simply use the tool Add XY Coordinates.

Re: lat&long

RobertBorchert — Mon, 16 Apr 2018 14:24:21 GMT

Reading your question again.

Create a new database. Make a feature dataset in the projection you want to use for your Lat Long

Example WGS 84 or Web Mercator.

Right click on the feature dataset and import features. Select your UTM feature class and import it into the new feature dataset. ArcGIS will automatically re- project your data.

Be advised if you project it into a projection that is not appropriate for your location it will skew your data.

Re: lat&long

GERTISEDO — Mon, 16 Apr 2018 14:37:33 GMT

can you try with my table and you can see the file .....

Re: lat&long

RobertBorchert — Mon, 16 Apr 2018 14:40:03 GMT

Sorry I am not going to download and open a zip file from someone in an open forum that I do not know.

Create the points first with your tables UTM coordinates and the re-project it into the decimal degrees.

Re: lat&long

XanderBakker — Mon, 16 Apr 2018 14:40:34 GMT

You will first have to change your text file so that ArcMap can understand it by adding a header:

The add it to ArcMap, which will interpret it as a table:

Use the Add XY events option to create point features with the appropriate coordinate system:

Followed by selecting the right fields:

and define the coordinate system (not sure if this the correct one in my screenshot below)

When you have the point events you can use the project tool to create a physical output featureclass with the WGS 1984 geographic coordinates:

and add coordinates:

to obtain the decimal degrees of the geographic coordinates as attributes in the featureclass:

Re: lat&long

GERTISEDO — Mon, 16 Apr 2018 20:29:43 GMT

hi Xander

perfect job but i want to see all field of label on workspace and what can i do

please attach photo

Re: lat&long

XanderBakker — Mon, 16 Apr 2018 20:37:35 GMT

From your screen shot you are using the Field Calculator and I see more fields than you have in the file you shared. My first step was to define a proper header:

This will result in ID, X, Y and Z fields. What schema of data are you using and what process are you using the Field Calculator for (I did not use it in my steps)?

Re: lat&long

GERTISEDO — Tue, 17 Apr 2018 07:34:38 GMT

ok i want see all ID,X,Y,Z on workspace and i need your help ....what can i do ....for this

and make final gird ...