Displaying Data with Different Coordinate Systems in a Single Map

Surfer allows you to display map layers from any coordinate system in a single map. To do so, you need to assign the coordinate system for each map layer. Then, change the desired target coordinate system for the map.

The standard procedure for creating maps in a specific coordinate system are:

  1. Create the map by clicking on the appropriate Home | New Map command.

  2. Click on the map layer to select it. In the Properties window, click on the Coordinate System tab.

  3. If the Coordinate System is not correct, click the Set button next to Coordinate System . The Assign Coordinate System dialog opens.

  4. Make any changes in the dialog. This is the existing coordinate system for the map layer. When finished making changes, click OK.

  5. Add the second map layer to the map using the appropriate Map Tools | Add to Map | Layer command.

  6. After the second map layer appears, click once on it to select it. In the Properties window, click on the Coordinate System tab.

  7. If the Coordinate System is not correct, click the Set button next to Coordinate System . The Assign Coordinate System dialog opens.

  8. Make any changes in the dialog. This is the existing coordinate system for the second map layer. This coordinate system can be different from the first map layer and has no effect on the first map layer. When finished making changes, click OK.

  9. To change the coordinate system for the map, click on the Map object. In the Properties window, click on the Coordinate System tab.

  10. If the Coordinate System is not correct, click on the Change button next to Coordinate System to set the desired target coordinate system. When finished, click OK.

  11. The entire map is now displayed in the desired target coordinate system.

See Also

What is a Coordinate System

What is a Map Projection

Source Coordinate System - Map Layer

Target Coordinate System - Map