uicontrol回调输入参数过多 [英] Too many input arguments to uicontrol callback

问题描述

我试图编写一个滚动条，以同时更改许多子图的x范围.

I am trying to write a scroll bar that changes the x-range of many subplots at the same time.

kids = get(gcf,'Children');
 h=uicontrol('style','slider',...
'units','normalized','position',Newpos,...
'callback',{@slide_axes,kids},'min',0,'max',xmax-chunkDuration);

Update_axes在同一文件中定义:

Update_axes is defined in the same file:

function slide_axes(h)
 set(h,'xlim',get(gcbo,'value')+[0 20000]); 

结束

但是，我得到了错误:

??? Error using plot_scroll>slide_axes
Too many input arguments.

??? Error while evaluating uicontrol Callback

我在FEX上读到，回调可能会将两个参数传递给任何回调函数.但是，当我将slide_axes的签名更改为slide_axes(h,evt)时，错误仍然存​​在.

I read on the FEX that callback may pass two arguments to any callback function. However, when I changed the signature of slide_axes to slide_axes(h,evt) the error remains.

推荐答案

您要传递的参数(h和evt)是MATLAB的默认值.如果要将其他参数传递给回调函数，则需要在h和evt之后编写它们.像这样:

The arguments you are passing (h and evt) are MATLAB defaults. If you want to pass additional arguments to your callback function you need to write them after h and evt. Like this:

function slide_axes(h, evt, k)
    % k is kids.
end

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