Shrinkwrap command

How do I make multiple tree canopies into one boundary?

Hidden In Civil 3d is an amazing command called 'shrinkwrap' 

 It allows you select multiple shapes and create an outer boundary of them. It is a bit simpler than the 'boundary' command. It works quite simply like shrinkwrapping objects.

  If you have multiple trees in surveys, you might have multiple criss-crossing tree canopies. 

Some surveyors use points to create tree canopies which are dependent from the tree trunk size. So it expands according to the trunk size leaving all of these bubbles (tree canopies). In order to clean up a survey. you can isolate the tree canopies from a copy , or export of the tree points in the original survey. Then use the 'shrinkwrap' command (command alias = lineworkshrinkwrap) , select the canopies, and put the newly created boundary in a different layer. Once you have created all of them you can isolate the newly created tree canopies and save them under a different file name. Now you can attach the file as an x-ref to substitute the survey point tree canopies and clean up your survey.