ArcGIS | How to define a coordinate system for a vector or raster file in ArcGIS 10.X

How to define a coordinate system for a vector or raster file in ArcGIS 10.X

This tutorial is valuable for every kind of Geographic data (Vector and Raster Data). It is different from the tool project (for vector data) and project raster (for raster data).

This tool could be used if you have geographic data with undefined coordinate system or bad defined coordinate system.

Step 1: Open Arcmap

Step 2: Open your data using the Add data

You will get the next warning message, because the coordinate system of your data is not defined

Step 3: click OK

Step 4: click on search window tool

Step 4: write define projection

Step 5: Click on Define Projection (Data Management Tool)

A new window will appear

Step 6: Select your data with unknown coordinate system as Input Dataset and choose the appropriate coordinate system in the Coordinate System Tab

Step 7: Click OK