Add specific, individual, non-interval contour lines to surface

[Anonymous]

Is there a way to add an additional, individual contour line to a surface at a specific elevation?  For example, if we are creating an as-built surface that includes a pond, we might want to have a contour at the top of the pond, or if we are creating a proposed surface, we might want to add a contour line at some proposed normal pool elevation, neither of which will probably fall at an even foot.

Thank you,

[Jeff_M · Accepted solution]

User-defined contours.....make sure your Surface style is set to display them, then in the Surface properties, Analysis tab, select User defined Contours for the Type, enter 1 for the range, then change the elevation to the one you want in the Range Details panel.

[Anonymous]

Jeff,

Thanks again.  You've been such a help today.

[Joe-Bouza]

Yes, that is a "user contour", define it in the surface properties analysis tab>> analysis type >>> user defined contours. You can make as many as you like. One caveat; your surface style needs to be set to display "user contours".

[jmayo-EE]

Oh, it's not just today. 😉

[Jeff_M]

Glad I could help, Tom.

If you find a response which answers your question, please be sure to accept it as the solution. This will help future searchers quickly find answers to their own questions. Thanks!

[Anonymous]

Now how do i extract these user defined lines and have them stay when i switch back to 1 foot contour surface? Extract button is deleting them when i change surface back to one foot contours.

[neilyj666]

Use the Extract Objects from the Surface Tools Panel from the contextual ribbon when you have the surface selected

[Anonymous]

I do that and it extracts but then when i switch back to any other surface style them lines are gone.

[Jeff_M]

Are you actually extracting them? The extracted objects are polylines and no longer have any ties to the surface or style.

[Anonymous]

Yes and they become polylines (actually creates two polylines on each one), but when i switch surface style back there is a hole there where they were. It used to work. I am in ACAD 2014.

[shadysuliman15]

i was able to add the user contours for the contour elevation i wanted for my pond but whenever i try to edit surface after that (swap edge, add surface point) the user contours get deleted, any idea on what this may be?