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Paulina Müller el 4 de Ag. de 2016
Comentada: Paulina Müller el 4 de Ag. de 2016
Respuesta aceptada: Thorsten
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I am updating an old GUI created in 2004 (by someone else) to be usable again, and one of the main problems was that elements of the GUI overlapped: There are two plots and a set of uicontrol elements. I moved the positions of the uicontrols, but there is still overlap with the plots.
The left plot is Axes2, the right plot is Axes1, but the left one is used first.
The y-axis should be reversed, the x-axis normal, and the axis locations should be "left" and "bottom". The right plot is meant to have no yticklabels.
The problem, as you can probably see in the image, is that setting the Ydir-property to 'reverse' does not change the direction of the y-axis, but what happens is that Xdir is set to 'reverse' and the axis locations are changed to 'right' and 'top', and not even explicitly setting them to 'left' and 'bottom' moves them to the right place. The axis labels are also consequently in the wrong place. This is the code in the program that plots the data:
if true
% code
%%GUI laden
inversion_gui_edit; % load GUI PM
hold on
box on
patch([-1e-3 1e-3 1e-3 -1e-3 -1e-3],...
[0 0 zmax0 zmax0 0],...
[0.7 0.7 0.7],...
'EdgeColor','none');
hold on;
plot(0*ones(2,1),[0 zmess0(N0)],'k-',... % make vertical line at 0 PM
TMess,zmess0,'k:',... % plot Temperatures
TMess,zmess0,'ko'); % mark Temperatures
if (max(abs(TMess))<.1||max(abs(TMess))==.1); % || means OR
axis([-.1 .1 0 zmax0])
end;
if max(abs(TMess))>.1;
axis([-max(abs(TMess)) max(abs(TMess)) 0 zmax0])
end;
grid on;
title('T [K] with BTV and q/k=0');
ylabel('z [m]');
ax = gca
ax.YDir = 'reverse';
ax.YAxisLocation = 'left';
ax.XAxisLocation = 'bottom';
for bar0=1:N0;
barx0=[TMess(bar0)-1e-3 TMess(bar0)+1e-3];
bary0=[zmess0(bar0) zmess0(bar0)];
plot(barx0,bary0,'k-','LineWidth',2);
end;
achse=axis;
achse=achse(2);
xlabel(['Station ',FILENAME(5:6),' Pen ',FILENAME(8:9)]); %PM
H11=findobj('Tag','Axes1');
H12=findobj('Tag','Axes2');
plot(0*ones(2,1),[0 zmess0(N0)],'k-',...
kMess,zmess0,'k:',...
kMess,zmess0,'ko',...
'Parent',H11);
set(H11,'ydir','reverse');
set(H11,'YTickLabel',[]);
set(H11,'XGrid','on');
set(H11,'YGrid','on');
set(H11,'XLim',[-.5 .5]);
if max(abs(kMess))>.5;
set(H11,'XLim',[-max(abs(kMess)) max(abs(kMess))]);
end;
set(H11,'YLim',[0 zmax0]);
end
For the sake of completeness, this is how the axes are set up for the gui:
if true
% code
h1 = axes('Parent',h0, ...
'Units','pixels', ...
'CameraUpVector',[0 1 0], ...
'CameraUpVectorMode','manual', ...
'Color',[1 1 1], ...
'ColorOrder',mat8, ...
'Position',[268+5 84 148 355], ...
'Tag','Axes1', ...
'XColor',[0 0 0], ...
'YColor',[0 0 0], ...
'ZColor',[0 0 0]);
h2 = text('Parent',h1, ...
'Color',[0 0 0], ...
'HandleVisibility','off', ...
'HorizontalAlignment','center', ...
'Position',[0.4965986394557824 -0.07909604519774005 9.160254037844386], ...
'Tag','Axes1Text4', ...
'VerticalAlignment','cap');
set(get(h2,'Parent'),'XLabel',h2);
h2 = text('Parent',h1, ...
'Color',[0 0 0], ...
'HandleVisibility','off', ...
'HorizontalAlignment','center', ...
'Position',[-0.2380952380952381 0.4971751412429378 9.160254037844386], ...
'Rotation',90, ...
'Tag','Axes1Text3', ...
'VerticalAlignment','baseline');
set(get(h2,'Parent'),'YLabel',h2);
h2 = text('Parent',h1, ...
'Color',[0 0 0], ...
'HandleVisibility','off', ...
'HorizontalAlignment','right', ...
'Position',mat9, ...
'Tag','Axes1Text2', ...
'Visible','off');
set(get(h2,'Parent'),'ZLabel',h2);
h2 = text('Parent',h1, ...
'Color',[0 0 0], ...
'HandleVisibility','off', ...
'HorizontalAlignment','center', ...
'Position',[0.4965986394557824 1.022598870056497 9.160254037844386], ...
'Tag','Axes1Text1', ...
'VerticalAlignment','bottom');
set(get(h2,'Parent'),'Title',h2);
h1 = axes('Parent',h0, ...
'Units','pixels', ...
'CameraUpVector',[0 1 0], ...
'CameraUpVectorMode','manual', ...
'Color',[1 1 1], ...
'ColorOrder',mat10, ...
'Position',[51 84 179 355], ...
'Tag','Axes2', ...
'XColor',[0 0 0], ...
'YColor',[0 0 0], ...
'ZColor',[0 0 0]);
h2 = text('Parent',h1, ...
'Color',[0 0 0], ...
'HandleVisibility','off', ...
'HorizontalAlignment','center', ...
'Position',[0.4943820224719101 -0.07909604519774005 9.160254037844386], ...
'Tag','Axes2Text4', ...
'VerticalAlignment','cap');
set(get(h2,'Parent'),'XLabel',h2);
h2 = text('Parent',h1, ...
'Color',[0 0 0], ...
'HandleVisibility','off', ...
'HorizontalAlignment','center', ...
'Position',mat11, ...
'Rotation',90, ...
'Tag','Axes2Text3', ...
'VerticalAlignment','baseline');
set(get(h2,'Parent'),'YLabel',h2);
h2 = text('Parent',h1, ...
'Color',[0 0 0], ...
'HandleVisibility','off', ...
'HorizontalAlignment','right', ...
'Position',mat12, ...
'Tag','Axes2Text2', ...
'Visible','off');
set(get(h2,'Parent'),'ZLabel',h2);
h2 = text('Parent',h1, ...
'Color',[0 0 0], ...
'HandleVisibility','off', ...
'HorizontalAlignment','center', ...
'Position',[0.4943820224719101 1.022598870056497 9.160254037844386], ...
'Tag','Axes2Text1', ...
'VerticalAlignment','bottom');
set(get(h2,'Parent'),'Title',h2);
end
The blank gui looks like this and is fine:
I haven't got a clue why this is happening and I'd be happy for some pointers as to what I could try to fix this. Could a be an issue with the 2015b release I'm using??
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Respuesta aceptada
Thorsten el 4 de Ag. de 2016
Editada: Thorsten el 4 de Ag. de 2016
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Probably you messed up the first and the second plot. gca may give you the axes of the right plot, and then you try to reverse the invisible y-axis. I would define ax_left and ax_right referring to the left and right plot, resp., once you have created the axes, and then work on these, without using gca.
I also found out that the example works if you delete the lines
'CameraUpVector',[0 1 0], ...
'CameraUpVectorMode','manual', ...
when you create the axes. They seem to interfere with he YDir setting:
h1 = axes('Parent',h0, ...
'Units','pixels', ...
'Color',[1 1 1], ...
'Position',[268+5 84 148 355], ...
'Tag','Axes1', ...
'XColor',[0 0 0], ...
'YColor',[0 0 0], ...
'ZColor',[0 0 0]);
ax_right = h1;
h1 = axes('Parent',h0, ...
'Units','pixels', ...
'Color',[1 1 1], ...
'Position',[51 84 179 355], ...
'Tag','Axes2', ...
'XColor',[0 0 0], ...
'YColor',[0 0 0], ...
'ZColor',[0 0 0], 'YDir', 'reverse');
ax_left = h1;
ax_left.YAxisLocation = 'right';
ax_left.YDir = 'reverse';
ax_left.XTick = [];
ax_right.YTick = [];
ax_right.XLim = [-.5 .5];
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Paulina Müller el 4 de Ag. de 2016
Enlace directo a este comentario
https://es.mathworks.com/matlabcentral/answers/298465-why-does-changing-ydir-to-reverse-change-xdir-and-axis-locations-but-not-ydir#comment_383451
Thanks - I tried that, and it didn't help. Just to test, I also changed Ydir to reverse on the right plot, and the same thing happens...
Paulina Müller el 4 de Ag. de 2016
Enlace directo a este comentario
https://es.mathworks.com/matlabcentral/answers/298465-why-does-changing-ydir-to-reverse-change-xdir-and-axis-locations-but-not-ydir#comment_383461
Thanks, only saw the edit just now - it works in my script too!
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Steven Lord el 4 de Ag. de 2016
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I recommend using gca only in the Command Window while experimenting. When you write your "final" code, make sure you're operating on the axes you think you are. In this particular case, if you want to change the axes in which you plotted, get its axes ancestor and operate using that handle.
% Create two axes and plot in the first
ax1 = subplot(2, 1, 1);
ax2 = subplot(2, 1, 2);
h = plot(ax1, 1:10, (1:10).^2);
% Make the second axes active
axes(ax2);
% Change the current axes color to red
set(gca, 'Color', 'r');
% Change the axes with the plot to log scale
A = ancestor(h, 'axes');
set(A, 'YScale', 'log');
If I had clicked in another axes before changing the color to red, it would have changed the color of that axes, not the second subplot. But the last segment of code would ALWAYS (assuming that the plot and the axes that contains it still exists and that the plot hadn't been moved from one axes to the next between those last two lines of code, which would require very precise timing) change the scale of the Y axis of the axes containing the line, regardless of wherever else I had clicked.
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Paulina Müller el 4 de Ag. de 2016
Enlace directo a este comentario
https://es.mathworks.com/matlabcentral/answers/298465-why-does-changing-ydir-to-reverse-change-xdir-and-axis-locations-but-not-ydir#comment_383462
You're absolutely right, and if I were writing this from scratch it would look different ^^
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