Question

我正在尝试@Amro建议我，我改变了部分代码并且出现了一些错误：/

请帮帮我。

我将选项设置为：

options = {
    {'r','g','b','c','m','y','k'} ;
    {'x','o','.','s'} ;
    {'1','2','3'} ;
    {'2','3'} ;
    {'1','3'} ;
    {'1','2'}
};

现在，我在matlab中写道：

mainGUI(options)

我收到了这些错误：

??? Index exceeds matrix dimensions.

Error in ==> tmp>secondaryGUI at 67
        if strcmp(selected{i},options{i}{j})

Error in ==> tmp>callback at 17
    hOptsGUI = secondaryGUI(hFig);

??? Error while evaluating uicontrol Callback

这是代码：

function  mainGUI(options)
    %# current options
    opts = {'r', '.', '1'};

    %# create main figure, with plot and options button
    hFig = figure;
    callback

    %# options button callback function
    function callback(o,e)
        %# save current options (sharing data between the two GUIs)
        setappdata(hFig, 'opts',opts);

        %# display options dialog and wait for it
        hOptsGUI = secondaryGUI(hFig, options);
        waitfor(hOptsGUI);

        %# get new options, and update plot accordingly
        opts = getappdata(hFig, 'opts');
        opts
    end
end

function hFig = secondaryGUI(hParentFig, options)
    %# create figure
    hFig = figure('Menubar','none', 'Resize','off', ...
    'WindowStyle','modal', 'Position',[100 100 350 200]);
    movegui(hFig, 'center');

    %# all possible plot options

    options = cellfun(@(c) c(end:-1:1), options, 'Uniform',false);
    num = length(options);

    %# get saved settings
    selected = getappdata(hParentFig, 'opts');

    %# top/bottom panels
    hPanBot = uipanel('Parent',hFig, 'BorderType','none', ...
    'Units','normalized', 'Position',[0 0.0 1 0.2]);
    hPanTop = uipanel('Parent',hFig, 'BorderType','none', ...
    'Units','normalized', 'Position',[0 0.2 1 0.8]);

    %# buttongroups in top panel
    hBtnGrp = zeros(1,num);
    width = 1/num;
    for i=1:num
        %# create button group
        hBtnGrp(i) = uibuttongroup('Parent',hPanTop, ...
            'Units','normalized', 'Position',[(i-1)*width 0 width 1]);
        %# populate it with radio buttons
        height = 1./numel(options{i});
        for j=1:numel(options{i})
            h = uicontrol('Parent',hBtnGrp(i), 'Style','Radio', ...
            'Units','normalized', 'Position',[0.05 (j-1)*height 0.9 height], ...
            'String',options{i}{j});
            %# set initially selected values
            if strcmp(selected{i},options{i}{j})
                set(hBtnGrp(i), 'SelectedObject',h)
            end
        end
    end

    %# save button in bottom panel
    uicontrol('Parent',hPanBot, 'Style','pushbutton', ...
        'Units','normalized', 'Position',[0.3 0.2 0.4 0.6], ...
        'String','start', 'Callback',@callback)

    %# save button callback function
    function callback(o,e)
        %# get selected values
        hObjs = get(hBtnGrp(:), 'SelectedObject');
        vals = get(cell2mat(hObjs),{'String'});

        %# update settings
        setappdata(hParentFig, 'opts',vals);

        %# close options dialog
        close(hFig)
    end
end

可能变量'opts'存在问题，因为没有以下值：{'r'，'。'，'1'}？

因为我不知道为什么它超出矩阵尺寸，选项的长度是6。

谢谢你！

Answer 1

如果我理解正确，您正在设计一个GUI，使用户可以设置一些参数并返回所选的选项。

您可以使用GETAPPDATA / SETAPPDATA作为数据共享机制，而不是像现在一样立即返回值。

对于布局，使用panels将组件组合在一起，这样可以实现更灵活的GUI。

这是一个示例应用程序来说明。我们的想法是我们有一个包含绘图的主图，我们提供了第二个“对话框”来自定义绘图选项。

function mainGUI()
    %# current options
    opts = {'r', '.', '1'};

    %# create main figure, with plot and options button
    hFig = figure;
    hLine = plot(cumsum(rand(100,1)-0.5), ...
        'Color',opts{1}, 'Marker',opts{2}, 'LineWidth',str2double(opts{3}));
    uicontrol('Style','pushbutton', 'String','Options...', 'Callback',@callback)

    %# options button callback function
    function callback(o,e)
        %# save current options (sharing data between the two GUIs)
        setappdata(hFig, 'opts',opts);

        %# display options dialog and wait for it
        hOptsGUI = secondaryGUI(hFig);
        waitfor(hOptsGUI);

        %# get new options, and update plot accordingly
        opts = getappdata(hFig, 'opts');
        set(hLine, 'Color',opts{1}, 'Marker',opts{2}, 'LineWidth',str2double(opts{3}))
    end
end

function hFig = secondaryGUI(hParentFig)
    %# create figure
    hFig = figure('Menubar','none', 'Resize','off', ...
        'WindowStyle','modal', 'Position',[100 100 350 200]);
    movegui(hFig, 'center');

    %# all possible plot options
    options = {
        {'r','g','b','c','m','y','k'} ;    %# color
        {'x','o','.','s'} ;                %# shape
        {'1','2','3'}                      %# width
    };
    options = cellfun(@(c) c(end:-1:1), options, 'Uniform',false);
    num = length(options);

    %# get saved settings
    selected = getappdata(hParentFig, 'opts');

    %# top/bottom panels
    hPanBot = uipanel('Parent',hFig, 'BorderType','none', ...
        'Units','normalized', 'Position',[0 0.0 1 0.2]);
    hPanTop = uipanel('Parent',hFig, 'BorderType','none', ...
        'Units','normalized', 'Position',[0 0.2 1 0.8]);

    %# buttongroups in top panel
    hBtnGrp = zeros(1,num);
    width = 1/num;
    for i=1:num
        %# create button group
        hBtnGrp(i) = uibuttongroup('Parent',hPanTop, ...
            'Units','normalized', 'Position',[(i-1)*width 0 width 1]);
        %# populate it with radio buttons
        height = 1./numel(options{i});
        for j=1:numel(options{i})
            h = uicontrol('Parent',hBtnGrp(i), 'Style','Radio', ...
                'Units','normalized', 'Position',[0.05 (j-1)*height 0.9 height], ...
                'String',options{i}{j});
            %# set initially selected values
            if strcmp(selected{i},options{i}{j})
                set(hBtnGrp(i), 'SelectedObject',h)
            end
        end
    end

    %# save button in bottom panel
    uicontrol('Parent',hPanBot, 'Style','pushbutton', ...
        'Units','normalized', 'Position',[0.3 0.2 0.4 0.6], ...
        'String','Save & Close', 'Callback',@callback)

    %# save button callback function
    function callback(o,e)
        %# get selected values
        hObjs = get(hBtnGrp(:), 'SelectedObject');
        vals = get(cell2mat(hObjs),{'String'});

        %# update settings
        setappdata(hParentFig, 'opts',vals);

        %# close options dialog
        close(hFig)
    end
end

screenshot

matlab gui单选按钮

1 个答案: