Have You Tried: Create Associative Center Marks and Centerlines in AutoCAD

AutoCAD Centerline

We’re excited to share a new Have You Tried article this month.  It’s all about center marks and centerlines. 

Have you ever needed to mark the center of an arc or circle? How about needing to draw a line at the apparent midpoint between two lines or polylines. I’m sure you have. There are two commands—CENTERMARK and CENTERLINE—that can make performing these tasks easier. With a few clicks you, can place a center mark at the center of a circle, arc, or polygonal arc. Or by selecting two lines you can draw a centerline at the apparent midpoint between two line segments or polylines.   

In this new Have You Tried, we cover how to perform the following with center marks and centerlines:

  • Create a center mark or centerline
  • Create a center mark for a polygonal arc
  • Change its properties
  • Set its default layer and linetype
  • Disassociate and reassociate center marks and centerlines to objects
  • Modify them with grips
  • Reset their centerline extension length
  • Modify their appearance

Learn about creating and modifying center marks and centerlines with the step-by-step examples in the Have You Tried: Create Associative Center Marks and Centerlines topic.

AutoCAD Centermark

Keep the Feedback Coming

Thanks for all the great feedback submitted so far. Because of the great feedback, we have been able to improve the topics in the AutoCAD Online Help system.

The best way to submit feedback is by using the “Was this helpful?” section located at the bottom of every Help topic. Let us know what you like or don’t like about a topic or provide suggestions for other subjects that you’d like to see covered in greater detail. The more specific your comments, the better.

Lee Ambrosius

Lee Ambrosius is a Principal Learning Content Developer at Autodesk, Inc., for the AutoCAD software and AutoCAD LT software products. He works primarily on the CAD administration, customization, and developer documentation. Lee has also worked on the user documentation for AutoCAD on Windows and Mac. He has presented on a wide range of topics at Autodesk University over the past 10 years, from general AutoCAD customization to ObjectARX technology. Lee has authored a number of AutoCAD-related books, with his most recent projects being AutoCAD Platform Customization: User Interface, AutoLISP, VBA, and Beyond and AutoCAD 2015 and AutoCAD LT 2015 Bible. When he’s not writing, you can find him roaming various community forums, posting articles on his blog, or tweeting AutoCAD-related information.

Try AutoCAD free for 30 days

Add comment

There are no comments

The AutoCAD Blog is all about helping you get the most out of AutoCAD. It's also the best way for you to connect with the makers of AutoCAD. Subscribe to keep up with AutoCAD