Generating Contours

Use a contour style to generate contours, assign different colors to the major and minor contours, and smooth the contours by adjusting their properties.

 

1.	From the ..\AOTC\LDD_2\Portsmouth Heights\dwg folder open 99050_tp1.dwg .

 

2.	Restore the view named Plan.

 

3.	Create contour lines:

• On the Terrain menu, click Create Contours. The Create Contours dialog box appears.

• Under Properties, select Portsmouth_Heights as the Contour Style.

• Click OK.

• In the command line, press Enter to choose "Yes" and erase old contours.
  
  

 

4.	Change the color of the Eg_cont-mnr layer to Color 35 and the Eg_cont-mjr layer to Color 85

 

5.	Zoom to point 639 with a height of 50. The contours in this area have a jagged appearance.

 

6.	Select one of the contours to change its properties:

• Right-click and click Contour Properties. The Contour Style Manager dialog box is displayed.

• Click the Contour Appearance tab.

• Under Smoothing Options, select Add Vertices, and then set the slider to 5.

  
  
  

• Click OK. The contours appear smoother.

 

7.	Freeze the Boundary, Pnts_*, Sym_*, and Traverse layers.

 

8.	Restore the view named Plan.

 

9.	Save as 99050_tp2.dwg .