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How do I add both zoom and pan ability using mouse to a plot?

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Magnu Blomberg
Magnu Blomberg el 18 de Mayo de 2016
Respondida: Simon T el 2 de Nov. de 2019
I have been trying to add both zoom and pan ability to a plot using the mouse scroll wheel and the drag to pan functionality. The area is a map and I would like the same kind of control as in Google Maps etc. I can achieve these functionalities separately with, e.g. the following code.
plot([0 10], [2 8]);
zoom on;
%pan on;
When I try to add both these, i.e. remove the comment, it fails and simply leaves me with the last specified functionality.
I tried to add the respective functionality on scroll wheel and click callbacks,
set(gcf,'WindowScrollWheelFcn', @scrollCb);
set(gcf,'WindowButtonDownFcn', @panCb);
where scrollCb is defined as
function scrollCb(obj, evnt)
zoom on;
display('zoom on');
and panCb with the corresponding code. This does not work and adding a new function callback within the function didn't work either.
Does anyone have a solution to this?
  1 comentario
Adam
Adam el 18 de Mayo de 2016
As far as I am aware the built-in pan and zoom modes are mutually exclusive. In essence though they just change the xlim and ylim properties of your image so you could program your own non-mutually exclusive versions attached to your callbacks.

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Simon T
Simon T el 2 de Nov. de 2019

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