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Thread: Concentric craters

  1. #1
    Join Date
    Apr 2014
    Posts
    2

    Concentric craters

    I am new to the mapping and having difficulty indicating two different craters if they are concentric and the centers are the same. It keeps deleting the first one. Suggestions?

  2. #2
    Join Date
    May 2005
    Posts
    8,018
    Do you have an example?

  3. #3
    Join Date
    Apr 2014
    Posts
    2
    Not sure what you mean by example? The photos of areas needing mapping are not marked by any identification number, which would be helpful for referencing. I will do one today and if I run into the same problem I will send a message. I'm assuming that our data is being tracked by dates as well. I have done about 6 photos so far and have not received any feedback yet. When should I expect this? It would be very helpful so I don't keep making the same mistakes.

  4. #4
    Join Date
    Aug 2014
    Posts
    6
    you have to start the circle somewhere else and then move it to the desired location.
    hope it works

  5. #5
    Join Date
    Feb 2005
    Posts
    10,901
    That might be an interesting art project of the far future. Have a big space rock hit a plain, put a smaller one in that, and so on to get multiple rings...

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