disable axes screen updating in gui
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I have an axes in a gui where i do the following
- Draw 3 time series in the axes using plotyy
- use datetick on the x axis.
- convert the numbers on the y axes from scientific notation to decimals.
- change the font size of the axes.
- change the line width.
The user can select which time series to plot from a popup. My issue is that when the user selects a time series, the chart doesn't update very quickly. You can actually see it doing steps 2, 3, 4, and 5 in sequence. Is there any way to disable the axes's screen updating until it's actually finished with steps 2 and 3?
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回答(3 个)
Drew
2012-11-13
1 个评论
Arthur
2012-11-14
You can probably speed this up by updating existing objects instead of creating new objects every time. Especially recreating a legend can be very slow... Also, you're repeating the same lines repeatedly on the plot(datetick, linewidth etc), which is not neccesary. Try if this works:
structOut = handles.timeSeriesData;
if isfield(handles,{'y1','y2'}) && ishandle(handles.y1) && ishandle(handles.y2)
%update existing plot
set(handles.y1,'XData',[Y1 XDATA],'Ydata',[Y1 YDATA]) %update data of y1
set(handles.y2,'XData',[Y2 XDATA],'Ydata',[Y2 YDATA]) %update data of y2
%update existing legend:
if isfield(handles,'legend') && ishandle(handles.legend)
legend(handles.legend,'ScanVol', 'Modeled Value', strrep(tsName, '_', ' '))
end
else
%create new plot
[handles.axis, handles.y1, handles.y2] = plotyy(handles.ModelGraph, [datenum(structOut.WkStartDt), datenum(structOut.WkStartDt)], [structOut.Value, structOut.ModeledValue], ...
datenum(structOut.WkStartDt), structOut.(tsName));
datetick(handles.axis(1), 'x', 'mm/yy');
datetick(handles.axis(2), 'x', 'mm/yy');
set(handles.axis(1), 'FontSize', 8);
set(handles.axis(2), 'FontSize', 8);
set(handles.y1, 'LineWidth', 2);
set(handles.y2, 'LineWidth', 2);
set(handles.y2, 'LineStyle', ':');
%create legend:
handles.legend('ScanVol', 'Modeled Value', strrep(tsName, '_', ' '));
end
%Update Yticks:
n = get(gca,'Ytick');
set(gca,'yticklabel',sprintf('%d |',n'));
%update handles structure
guidata(gcbo,handles)
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