How do I export a Surfer map using map units? It always exports in page units (inches or centimeters).

Surfer exports a map in map units by default when it is the only object being exported, and the map is not rotated or sheared. When other objects such as color scales and text are present, Surfer uses page units by default when exporting and you can change this to map units manually. If the map is rotated or sheared, there is no option to export in map units.


Use the following procedure to change the export from page units to map units.


To export to map units:

  1. Make sure the map is not rotated or sheared.
    1. Click Home | Selection | Transform, and set the Rotation and Shear values to 0. Click OK.
    2. Select the Map object in the Contents window and click on the View tab in the Properties window. Set the Rotation (degrees) to 0.
  2. Click File | Export.
  3. Give the file a name, choose the desired file format from the Save as type list, and click Save.
  4. In the Export Options dialog, on the Scaling or Spatial References page, set the Scaling source to Map. If you found this setting on the Scaling tab, the File Rectangle coordinates will update to be in the units of the map (different from the Source Rectangle coordinates).

  1. Click OK and the file is created in map units.



In Surfer 11 and previous versions, this takes a few extra steps. You must export a "dummy" file, saving the map coordinates, and then export the project to the real file using the saved map coordinates. To do this:

  1. Open the SRF file, and select the Map in the Object Manager. This is the map you want to use for the export coordinates.
  2. Click File | Export.
  3. We are going to export this to a dummy file, saving the map units. Choose to export as a whatever file format you wish, check the Selected objects only check box, give the file a name (ie. Dummy.dxf) and click Save.
  4. In the Export Options dialog, choose Scaling source to be Application, verify that the File Rectangle units are in map units, and check the Save scaling info check box.
  5. Click OK and the dummy file is created.
  6. Now we can export the entire project to a new file in correct units. Click File | Export.
  7. Choose to export as a new file, do not check (uncheck) Selected objects only, give the file a name (ie. Real.dxf) and click Save.
  8. In the Export Options dialog, choose Scaling source to be Saved and the File Rectangle units will be converted to the ones saved previously (they will be converted from inches to real map units).
  9. Click OK and the real file is created.


Updated September 11, 2017

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