Point Extraction gives me Red Circles.

Q) When I extract points to a surface I sometimes get little red circles on every point I select.  Where are they coming from?  How did I get these?

A) The order of operation that causes the red circle problem is this:

Step 1) Extract a set of points to your named surface.

Step 2) Extract breaklines to the same named surface.

Step 3) Extract more points to the same named surface BUT in doing so you have picked some duplicate points that you picked in Step 1.  Only the duplicates will have the red circles.  Be careful not to pick any duplicate points. 

If you need to - start the surface over and when you extract the point data, make sure the Clear before extract button is checked, as shown below.  However - when you extract the Breaklines - turn this option back off again!

Make sure that you have extracted all of the point data before extracting your breaklines and you will see this problem.

Glen W. Cameron, C.E.T.

Technical Support Manager