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Question about Dynamic-ly restricting Locator position

  • To: mathgroup at smc.vnet.net
  • Subject: [mg94556] Question about Dynamic-ly restricting Locator position
  • From: vasil michev <michev at gmail.com>
  • Date: Tue, 16 Dec 2008 02:34:42 -0500 (EST)

How do I implement this

Graphics[{Circle[], Circle[{0, 0}, .3],
  Locator[Dynamic[
    pt, (pt = If[Norm[#] > .3 && Norm[#] < 1, #, {1, 0}]) &]]},
 PlotRange -> 2]

into Manipulate? Everything i tried either crashes Mathematica or
gives no result, any help will be greatly appretiated.


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