Elevation analysis allows you to delineate any number of elevation ranges and then graphically distinguish the different ranges by color. This is a useful tool in many instances, especially when you are working with someone who doesn’t know how to read contours.To perform an elevation analysis on a surface in your drawing, complete these steps:
- Open the drawing named Elevation Analysis.dwg or (Elevation Analysis.dwg (METRIC)) located in the Exercise_04 class data folder.
- Click one of the contours to select the surface, and then click Surface Properties on the ribbon.
- Change the surface style to Elevation Banding (2D).
- Click the Analysis tab. Verify that the analysis type is Elevations and the number of ranges is 8.
- Click the downward-pointing arrow to populate the Range Details section of the dialog box with new data.
- Click OK to return to the drawing. The surface undergoes an obvious change, and it is now displayed as a series of colored bands with red signifying the lowest elevations and purple signifying the highest.
- Change the style of the surface to Elevation Banding (3D). Now the 3D view displays the colored bands as a 3D representation with exaggerated elevations. This tells a clear story about the existing shape of the land for this site (see Figure below).
Tips :You may need to zoom out a bit within the lower-right viewport to see the 3D color representation of the surface.
A 3D view of a surface using the Elevation Banding (3D) style
