addNewPositionCallback() problem

      clf
      plot(0,0,'w')
      axis equal
      axis([0 1 0 1])
      [x y]=ginput(1);
      quiver(0,0,x,y,1);
      axis equal
      axis([0 1 0 1])
      hold on
      imp=impoint(gca,x,y);
      addNewPositionCallback(imp, @(imp) quiver(0,0,imp(1),imp(2),1));
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I don't want it to spend plotting every moment i move the point, it's making shadow behind it, so i make the hold on to hold off, it don't plot that shadow of vector, but it change the figure size, and make an error, some one tell me what to do to move the vector where i ever want with out making such distortion.
Thanks for your help

Answer 1

[Evanescent Devil]

function mv()
    clf
    plot(0,0,'w')
    axis equal
    axis([0 1 0 1])
    [x y]=ginput(1);
    quiver(0,0,x(1),y(1),1);
    imp1=impoint(gca,x(1),y(1));
    axis equal
    axis([0 1 0 1])
    addNewPositionCallback(imp1,@(imp1) qv(imp1(1),imp1(2)));

      function qv(u,v)
          hold off
          quiver(0,0,u,v,1);
          ip=impoint(gca,u,v);
          addNewPositionCallback(ip,@(ip) qv(ip(1),ip(2)));
          axis equal
          axis([0 1 0 1])    
      end

end
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Solved, with the use of recursive function, but with a redundancy error :P

Answer 2

[Evanescent Devil]

function mv()
    clf
    plot(0,0,'w')
    axis equal
    axis([0 1 0 1])
    [x y]=ginput(1);
    qv(x,y);
    imp=impoint(gca,x,y);
    addNewPositionCallback(imp,@(imp) qv(imp(1),imp(2)));

      function qv(u,v)
      quiver(0,0,u,v,1);
      axis equal
      axis([0 1 0 1])
      end

end
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I found a solution, but it leads to another problem, The impoint disappears after i move the vector to the desired position, Also it shows an error.
Thanks for any help :D