If you add a color scale to a map in Surfer, it is oriented vertically by default. If you wish to rotate the color scale so it is horizontal, follow these steps:
- Select the color scale in the Contents window.
- Click Layout | Arrange | Free Rotate | Rotate.
- Enter -90 into the Rotate dialog and click OK.
- If desired, on the General page in the Properties window, in the Labels section, change the Angle to 90.
Updated November 12, 2018