Options

Select the surface to which you want to add the contours.

Type an identifier for the contour object. Duplicate names are allowed.

Type a value, or pick a point in a graphic view, to specify the elevation.

Type a value, or pick two points in a graphic view, for the distance between each contour line. Distance is measured vertically in project units. This setting affects the Estimated contours in the read-only Surface Information group.

Type a value for the frequency of major to minor contour lines. Entering 5 means that every fifth line will be an index contour line.

Select the layer on which the contour object will be placed, or select <New layer> to open the New Layer dialog, in which you can create another layer.

Select a color for the minor contour lines, or select to have contours derive their colors by layer.

Select a color for the major contour lines, or select to have contours derive their colors by layer.

This displays the elevation at the highest point on the selected surface.

This displays the elevation at the lowest point on the selected surface.

This displays the number of contour lines that will appear on the surface.