Contour Range

By default the contour range is automatically determined.

To customize the Contour Range in the Contour Options dialog:

1. Clear the Automatic checkbox in the Contour Range groupbox.
2. Enter the desired Min and Max values.
3. If necessary, enter the desired number of Intervals, to obtain evenly numbered contours.

Number of Intervals

The default number of contour Intervals is 10. You may enter any number between 2 and 50.

NOTE: The Contour Preset options may have different default numbers of intervals, suitable to the option.