Merge Existing With Design
This command allows you to merge the existing surface with design
surface within perimeter polylines. The resulting merged surface
can be saved to update either the Existing or Design surfaces. The
program prompts for inclusion and exclusion perimeter polylines.
These polylines must be closed. The merge will be applied inside
the inclusion perimeters and not inside the exclusion perimeters.
The exclusion perimeters are optional.
For example, if a portion of the site is completed, you can update
the existing surface to match the design for the completed area.
First, draw a closed polyline around the completed area. Then run
Merge Existing With Design and choose the merge results target as
Existing. Then select the perimeter polyline.
Pulldown Menu Location: Takeoff > Surface Tools
Prerequisite: existing and design surfaces and an inclusion
perimeter polyline
Keyboard Command: merge_final
