Just one y axis is drawn in GUI when I use the plotyy.

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octopus_love 2017-9-15

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https://ww2.mathworks.cn/matlabcentral/answers/356785-just-one-y-axis-is-drawn-in-gui-when-i-use-the-plotyy

评论： octopus_love 2017-9-18

采纳的回答： Henry Giddens

在 MATLAB Online 中打开

Hello, I have questions about 'plotyy'.

For example, code is like this in 'plotting_graph.m'. It is used for drawing graph.

[hAx, hLine1, hLine2] = plotyy(axis_x, (table(:, 1)/scale_value), axis_x, table_cumsum(:, 2));

And, at 'graph.m'(GUI code) I intend to enlarge the figure when I click the right button on mouse.

but when I click the right button, only one y axis is exist on the enlarged figure window.

function plot_ax1_Callback(hObject, eventdata, handles)
% Displays contents of axes1 at larger size in a new figure
global plotyy_flag;
if (plotyy_flag == true)
  axes1fig = figure;
  % Copy the axes and size it to the figure
  axes1copy = copyobj(handles.axes1,axes1fig);
    set(axes1copy,'Units','Normalized', 'Position',[.05,.2,.9,.6]);
    set(axes1copy, 'FontSize', 9);
    hold on;
    % Save handles to new fig and axes in case
    % we want to do anything else to them
    handles.axes1fig = axes1fig;
    handles.axes1copy = axes1copy;
    guidata(hObject,handles);
end

how can I bring the 2 yyaxis on the new figure window? please help me.

when I use the 'guidata(hObject, handles)', it doesnt't work.

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Answer 1

Henry Giddens 2017-9-16

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编辑：Henry Giddens 2017-9-16

在 MATLAB Online 中打开

Hi,

plotyy creates two axes objects. You need to copy both to the new figure. Are you sure that your code is copying both objects? Is 'handles.axes1' a single axes object or does it contain 2 entries?

You should have both axes objects in hAx from the first line of code:

[hAx, hLine1, hLine2] = plotyy(axis_x, (table(:, 1)/scale_value), axis_x, table_cumsum(:, 2));

Make sure you are copying both objects in hAx to the new figure

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octopus_love 2017-9-18

Thanks. Maybe, It is because of the dealing with 2 handles on the axes. My solution is : making the axis information(hAx) to global variables. And I used it the 'plot_ax1_Callback'.

Many thanks to advice me.

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