This command establishes Earthwork Zone Definitions, assigning a layer, differential, and cost to each zone name. Closed polylines for zones can then be drawn in the corresponding layers. The Calculate Earthwork command matches the zone polylines by layer name with the definitions. The elevation of the final surface within the zone closed polyline is adjusted by the zone differential. If a zone has two or more layers, the Split Differential option can be used to specify the thickness and description for each layer. The zone definitions are stored in a file with a (.zon) extension.
Pulldown Menu Location: Grading
Keyboard Command: zones
Prerequisite: None
File Names: \lsp\zones.lsp, \lsp\contour4.arx