You can create contour maps from data files and grid files using Grapher. Once a contour map is created, you can control your contour levels and intervals in the Property Manager. To change the contour interval, the minimum contour value, and the maximum contour value for your map, follow the steps below. 

1. Select the contour map in the Object Manager by clicking on it.
2. In the Property Manager, click on the Levels tab. 
3. In the Contour Intervals section, change the Minimum, Maximum, and/or Interval values. 

Created March 2023