Assigning Gradational Line Properties

Gradational line properties on a contour map can be done with the advanced contour level method. To create gradational lines,

Click on an existing contour map to select it.
In the Properties window, click on the Levels tab.
Change the Level method to Advanced.
Click the Edit Levels button next to Contour levels to open the advanced levels dialog.
Click the Line button to display the Line dialog.
In the Line dialog, select Gradational contour lines.
Click the line Style button to assign a specific style to all of the contour lines.
Click the Color button to assign a color spectrum to the contour lines.
To assign varying line thickness, enter numbers into the Min width and Max width edit boxes. These line widths are applied to the minimum and maximum contour levels respectively. All intermediate line widths are interpolated proportionally.
If the Skip box in the Affected Levels section is set to a number other than zero, the contour lines are not all assigned the colors or widths set in the Line dialog.
Click OK in the Line dialog to return to the advanced levels dialog. The selected line colors and widths are shown under Line. Be aware that some video cards and monitors are not capable of generating smooth gradations from one color to another, so the line spectrum might consist of ranges of one color, resulting in "color zones" rather than a smooth line color spectrum.
Click OK in the Levels for Map dialog and the contour map is drawn with the specified color and width contour lines.

See Also