ButtonDownFcn and WindowButt​onMotionFu​nction on a GUI

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Fer
Fer 2015-7-14
评论： Fer 2015-7-15
Hello,
Using this tutorial I have succeeded in making a crosshair follow the motion of my mouse when I click the left button. However I have only been able to do this in a regular figure, and have had problems implementing it on my GUI. I tried specifying the axes I want it to show on, because my GUI, made with GUIDE, has three axes figures, but it will show on the whole window. I'm assuming the WindowButtonMotionFcn works on the whole window. I know there is a buttondown callback for the axes, but what about for mouse movement? In short, I want to be able to program an action on clicking and dragging on any of the axes drawn in my GUI.
Thank you

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回答（1 个）

Jan
Jan 2015-7-15
The WindowButtonDownFcn and WindowButtonMotionFcn concern the complete window (as the name implies). But you can check the coordinates of the pointer in these callbacks easily and limit the motion to the position of wanted axes object using some min and max calls.
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Fer
Fer 2015-7-15
Okay, so I should write a condition that executes WindowsButtonMotionFcn only within certain coordinates? Would I include this in the callback for my button down function? I suppose there is a command to fund the curren position of my pointer. Could you maybe suggest some documentation as to how to proceed? Thank you!!

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