Patch moving with keyboard

Question

Ilia Sumatochin 2016-4-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/281081-patch-moving-with-keyboard

回答： Kevin Moerman 2016-4-26

Hi all, I have a little problem. I have created the patch object in a figure with an axes and then i have placed it at some location using the transformation. Now i want to move it using the arrows or an any other button on my keyboard.

Here is an example:

    function[] = main()
    fig....
    ax...
    set(Fig,'KeyPressFcn',@KeybordMoving);
    end
    function[] = patch()
    t=0:pi/2:2*pi;
    x=cos(t);
    y=sin(t):
    handle=patch(x,y,[0 0 0]);
    Tx=-1;
    T=makehgtform('translate', [Tx 0 0]);
    M=T;
    AxT=hgtransform('parent', gca, 'matrix', M);
    end
    function[] = KeboardMoving(hobject, event)
    switch event.Key
    case 'something'
    case 'something'
    end
end