Slider Using GUIDE with Code Example

Question

Amanda 2012-9-3

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/47283-slider-using-guide-with-code-example

采纳的回答： Image Analyst

在 MATLAB Online 中打开

I want to scroll through multiple plots using a slider

inside GUIDE. I have used this code template that was recommended

to me on the MATLAB's site.

Although this is for external GUI development

and not specifically for GUIDE.

How can I modify it so it will work inside GUIDE?

Here is the code:

 function [] = slider_plot()
% Plot different plots according to slider location.
S.fh = figure('units','pixels',...
            'position',[300 300 300 300],...
            'menubar','none',...
            'name','slider_plot',...
            'numbertitle','off',...
            'resize','off');    
S.x = 0:.01:1;  % For plotting.         
S.ax = axes('unit','pix',...
          'position',[20 80 260 210]);
plot(S.x,S.x,'r');        
S.sl = uicontrol('style','slide',...
               'unit','pix',...
               'position',[20 10 260 30],...
               'min',1,'max',3,'val',1,...
               'sliderstep',[1/2 1/2],...
               'callback',{@sl_call,S});  
function [] = sl_call(varargin)
% Callback for the slider.
[h,S] = varargin{[1,3]};  % calling handle and data structure.
cla
switch round(get(h,'value'))
    case 1
        cla
        plot(S.ax,S.x,S.x.^1,'r')
    case 2
        cla
        plot(S.ax,S.x,S.x.^2,'b')        
    case 3
        cla
        plot(S.ax,S.x,S.x.^3,'k')         
    otherwise
        disp('cannot plot')
end

Thanks,

Amanda

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Answer 1

Image Analyst 2012-9-3

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/47283-slider-using-guide-with-code-example#answer_57752

在 MATLAB Online 中打开

Right click your slider in GUIDE and view the callback function. Then put this code in there:

% First get S.  See the FAQ for methods to do that.
% http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F
sliderValue = int32(get(handles.slider1, 'Value'));
switch sliderValue 
    case 1
        cla;
        plot(S.ax,S.x,S.x.^1,'r');
    case 2
        cla;
        plot(S.ax,S.x,S.x.^2,'b');        
    case 3
        cla;
        plot(S.ax,S.x,S.x.^3,'k');        
    otherwise
        message = sprintf('No case for slider value of %d', sliderValue);
        uiwait(warndlg(message));
end

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Amanda 2012-9-3

Image Analyst I really appreciate it.

I was struggling with this last night.

And this morning I was hoping

someone might could help me out. Thanks a lot.

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Slider Using GUIDE with Code Example

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