Define Projection (Data Management)
Overwrites the coordinate system information (map projection and datum) stored with a dataset. This tool is intended for datasets that have an unknown or incorrect coordinate system defined.
Usage
• All geographic datasets have a coordinate system that is used throughout ArcGIS to display, measure, and transform geographic data. If the coordinate system for a dataset is unknown or incorrect, you can use this tool to specify the correct coordinate system.
• This tool only updates the existing coordinate system information; it does not modify any geometry. To transform the geometry to another coordinate system, use the Project tool.
• When a dataset with a known coordinate system is input to this tool, the tool will issue a warning message but will run successfully.
• All feature classes in a geodatabase feature dataset are in the same coordinate system. The coordinate system for a feature dataset should be determined when it is created. Once a feature dataset contains feature classes, its coordinate system cannot be changed.
• The tool will update the associated .wld file of a CAD or BIM file to retain the data's geographic adjusted position.
For more info, visit:
https://pro.arcgis.com/en/pro-app/lat...