GUI - using "handles.tag" with variable tag

Question

Pollok Tim 2016-5-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/282029-gui-using-handles-tag-with-variable-tag

回答： Walter Roberson 2016-5-1

采纳的回答： Walter Roberson

在 MATLAB Online 中打开

Hi everybody,

I used GUIDE to built a GUI with several axes taged as data1,data2,data3,... In the opening function I use

set(handles.tagsofallaxes,'visible','off');

to display them all.

Now I inserted checkboxes which get a unique plot and place this plot in the next free axes. For example: first plot in data1, second in data2, maybe I uncheck afterwards the checkbox for plot1 and data1 will be free again. when I check for plot 3 after this, it should appear in data1 which was empty at this moment.

For this I coded a function that gives me the next free axes. Output of the function is a string (data1,data2,data3,...).

I don't get how I can use the output to show my plot on the axes.

        nextfreeaxes = counter('position'); % saves tag of next free axes in string
        axes(handles.nextfreeaxes)

gives error: Reference to non-existent field 'nextfreeaxes'.

When I build a switch case everything is fine. But its not the way I want to do this.

        nextfreeaxes = counter('position'); % saves tag of next free axes in string
           switch nextfreeaxes
               case 'data1'
                   axes(handles.data1) 
               case 'data2'
                   axes(handles.data2)
               case 'data3' 
                   axes(handles.data3)
               case 'data4'
                  axes(handles.data4)
          end