2.0

Creating Contours from a Grading Object
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drawing units are meters, then a minor contour is created every place there is a
2-meter change in elevation.
7 Specify the layers for the major and minor contours. By placing the minor and
major contours on different layers, you can easily control the contour colors
and linetypes. You can select a layer or type in a new layer name.
NOTE
Layer management for contours is important. For more information, see
step 12.
8 Under Properties, select one of the following options:
n
Contour Objects: To create contour
n
Polylines: To create polyline contours
NOTE
If you select the Polylines option, then you cannot select a contour style
to use.
9 From the Contour Style list, select the contour style to use for the contours.
TIP
Click the Preview button to see a preview of the contour style.
10 If you need to load a contour style, edit a style, or create a new style, then click
the Style Manager button to display the Contour Style Manager overview dialog
box.
11 Click OK to generate the contours.
The following prompt is displayed.
Erase old contours (Yes/No) <Yes>:
12 Type one of the following options:
n
Yes: To erase any existing contours that may be present on the
contour layers.
n
No: To preserve existing contours.
WARNING!
If you type Yes to erase the old contours, then existing contours on both
the major and minor contour layers are erased. When you develop
grading plans, pay attention to the layers that the Create Contours
command uses so that your existing ground contours are not erased.