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How can I reverse an axis in Surfer?

To reverse an X or Y axis in Surfer, follow these steps:
  1. Select the axis in the Contents window.
  2. In the Properties window, click the Scaling tab.
  3. Check the box next to Reverse axis.

 

If wish to reverse the Z axis (i.e. if you have depth data), or you are using Surfer 11 or a previous version, there is not a direct way to reverse an axis. However, you can multiply the data by -1 and then show the absolute value for the axis labels. To do this:

  1. Click File | Open and open the original data in the Surfer worksheet.
  2. Use the Data | Transform function to multiply the data that you want descending by -1. For example, to multiple the X data in column A by -1, you could use the function A=A*-1.
  3. Save and close the worksheet.
  4. Go to Grid | Data and regrid the data.
  5. Create the map.
  6. Select the axis that shows the negative data (ie. the Bottom Axis).
  7. In the Property Manager, on the General page, under Labels, expand the Label Format section.
  8. Check the Absolute Value check box. Your axis is descending and the axis labels do not show the negative sign.

 

Updated September 11, 2017

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