Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Matlab question

  1. Aug 25, 2005 #1
    I have a small technical problem in MATLAB. I am trying to use comet to make an animated path of this spirograph program I've made. I'd also like to add some grid lines however my problem is the following. If i run the comet command everything looks great and works fine, but if I then use a "grid" or "grid on" command, my whole graph disappears. If I try either of the grid commands frist, they are instantly removed when the comet line runs. The only solution I have is to use the hold on command and run the program twice? Any suggestions?
  2. jcsd
  3. Aug 25, 2005 #2
    there' is a figure command to say hold so that you draw onto the previous graph...but you shouldn't have to run it twice. It should draw overlap.
  4. Aug 25, 2005 #3


    User Avatar
    Science Advisor
    Gold Member

    type "help hold on" or "help hold".
  5. Aug 25, 2005 #4


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    If you want to get even more technical (don't bother unless you want to do anything fancy), you can check out the set() and get() commands to learn how to adjust axis variables and settings.

    For simple things, 'hold on' and 'hold off' should work fine.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook