2 Surfaces, only need what has changed

[HP-SMI_surveyor]

Hey everyone,

 

 

I have 2 surfaces, a pre-dredge and then a year later another hydro survey was done. I've got all the points brought in and created point groups, boundaries, and surfaces.

 

 

The changes in the 2 surfaces are very minor and the client is only wanting to see existing contours and some shading/hatching where the elevations have differed.

 

 

Any help would be greatly appreciated!

[Tyke]

Create a differential DTM, subtract the latest from the first.

[Cad64]

I've moved your question to the Civil 3D section: http://www.cadtutor.net/forum/forumdisplay.php?57-Civil-3D-amp-LDD

[BIGAL]

Following on from Tyke try using the "Rainbow" labelling style.