xLabelTick and Save graph button

Question

Dzhamshed 2012-8-21

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/46402-xlabeltick-and-save-graph-button

Dear all, I have got a GUI for plotting from an *.xls file, and I want to have a save button which will save the plot and its legend to an *.eps file with a resolution of 600 dpi. Please, help me to do this. And, one more thing, on x axis labels are shown in a format of 'HH:MM', how can I make it just in minutes? Here is my m-code:

    function viewSTUEP
    global hPlot hChoice raw
      handles.F = figure('Name','viewSTUEP', 'Position',[100 20 900 520], ...
        'Color',[0.8 0.8 0.8], 'NumberTitle','off', 'Resize','off');
       uicontrol('Style','pushbutton', 'Position',[690 480 64 30], ...
        'FontSize',12, 'String','Load', 'Callback',@LoadData);
      uicontrol('Style', 'pushbutton', 'Position', [760 480 64 30], ...
        'FontSize',12, 'String','Update', 'Callback',@UpdatePlot);
      uicontrol('Style','pushbutton', 'Position',[830 480 64 30], ...
        'FontSize',12, 'String','Close', 'Callback',{@Close,handles});
      set(handles.F, 'CloseRequestFcn', {@Close,handles})
      set(gcf, 'Toolbar', 'figure');
      clear raw, raw(1,:) = {''};
      hPlot = axes('Position',[0.05 0.05 0.7 0.93], 'Visible','on');
      uicontrol('Style','text', 'Position',[690 432 130 35], ...
        'BackgroundColor',[0.8 0.8 0.8], 'FontSize',12, ...
        'HorizontalAlignment','left', 'String','Columns for plot:');
      hChoice = uicontrol('Style','listbox', 'Position',[690 420 204 22], ...
        'FontSize',12, 'String',raw(1,:), 'Min',1, 'Max',1);
    function Close(hObject, eventdata, handles)
      delete(handles.F)
    function LoadData(hObject, eventdata)
    global hChoice raw xdat
      [fname, pname] = uigetfile('*.xls','Select a data file');
      if fname ~= 0
        filename = strcat(pname, fname);
        [numeric,text,raw] = xlsread(filename);
        num = length(raw(1,:));
        if (num > 21) num = 21; end
        posY = 442 - (20*num);
        set(hChoice, 'String',raw(1,:));
        set(hChoice, 'Max',num);
        set(hChoice, 'Position',[690 posY 204 (20*num)]);
        xdat = datenum(0,0,0,0,0,cell2mat(raw(2:end,6)));
      end
    function UpdatePlot(hObject, eventdata)
    global hPlot hChoice raw xdat
      if ~isempty(raw)
        cols = get(hChoice,'Value');
        plot(hPlot, xdat,cell2mat(raw(2:end,cols(1))), 'LineWidth',2), datetick('x','HH:MM')
        grid on
        if (length(cols) > 1)
          colors = 'brgcmyk'; c = 2;
          hold(hPlot, 'on')
          for k = cols(2:end)
            plot(hPlot, xdat,cell2mat(raw(2:end,k)),colors(c),'LineWidth',2)
            c = c+1; if (c > 7) c = 1; end
          end
          hold(hPlot, 'off')
        end
        legend(hPlot, raw(1,cols), 'Interpreter','none','Location','Best')
      end

Thank you!

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Azzi Abdelmalek 2012-8-21

what is your question?

Dzhamshed 2012-8-21

1. How can I make a save button, which will save a plot with it's legend into an *.eps file with the resolution of 600 dpi? 2. How to change the xLabelTick, in order to show just in format of 'MM' - minutes, but not 'HH:MM'????

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Answer 1

Arthur 2012-8-21

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1. eps is a vector format and thus does not have a resolution.

2. change:

datetick('x','HH:MM')

into:

datetick('x','MM')

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Answer 2

Dzhamshed 2012-8-21

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在 MATLAB Online 中打开

OK I solved the problem about the save button, and it works well:

function SaveAs(hObject, eventdata, handles)
         [Save,savename] = uiputfile('*.eps','Save plot as: ')
         fname=fullfile(savename,Save);
         print('-depsc','-r300','-noui',fname)