from Civil to Inventor

The Autodesk enthusiast exile

Civil 3D – Rotate/Translate selection of Points

In Land Desktop rotating a selection of points was a piece of cake.  Well….if you had Lisp code, and we had tons of it.  Since writing about solutions (and actually solving them) takes more time that writing code, my group doesn’t really have a great deal of new code turned out, and use mostly native AutoCAD/Civil commands and features.  I’d love to finish .NET’ing all my old LISP, but I just don’t have the time and money.  I tried to get dirt on fellow coders, but coercion and blackmail will not work on Christopher (he is a clean cu chap), so I guess I am stuck with work-arounds.

The situation in the image below is nothing new to anyone dealing with Point data coming in, especially when it is fill for an existing design.  The backsight is wrong.

If you don’t have a survey network loaded, then you may be scratching your head.  There are no tools to select a group of points and modify them using standard AutoCAD tools.  You can get a group, but you still can’t affect a group with the touchy feely interface that you understand.


Identify the group of points that are wrong, and make a Point Group, and position it at the top of the Group List.  Set both of it’s styles to be Standard.  Then take the ‘All Points’ Group, and send it just below the new Group.  Set it’s styles to be ‘<none>’ for both styles.  No big Mystery here, just filtering out the problem points.

Now the key is how you have organized your Object Layers.  Mine are all “PNT-*”.  So I go to the command line and lock all layers, and unlock the Point layers. “-la lo * unl pnt-*”

When I window the area, only the visible points will be selected.  All the rest of the entities are locked by layer.  Here a simple rotate by reference command gets me going.


We used to have a really nice tool written by Dexter Lundy, that selected LDD Points by Description, Point Range, and Elevation Range.  That will probably be the next tool I recode.  It wasn’t possible to get it in 2007 when I last investigated it, but I believe it would be a cinch to get working now…..hint hint.

September 30, 2009 Posted by | 2010, Points | , , , , , , , | 1 Comment