Figure size for multiple subplots is not even
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Henrik Schädlich
am 16 Okt. 2017
Bearbeitet: Cedric
am 17 Okt. 2017
I would like to have two subplots with a legend under them. Unfortunately the upper plot is smaller the the lower one. My example is.
clear all;
close all;
%%Generate data
n=6;
f = 200;
x(:,1) = linspace(0,1,101);
for i = 1:n;
y1(:,i) = linspace(-100,i*10,101);
y2(:,i) = linspace(-4,i,101);
f=f*2;
list{i} = [num2str(f) ' Hz'];
end
%
%%Plot data
ax1 = subplot(211);
plot(x,y1);
axis([0 1 -100 20]);
LY1 = get(ax1,'YLim');
Bildhoehe1 = get(gcf);
NumTicksY1 = abs((LY1(1)-LY1(2))/20);
set(ax1,'YTick',linspace(LY1(1),LY1(2),NumTicksY1+1));
n1 = get(gcf);
%
ax2 = subplot(212);
plot(x,y2);
axis([0 1 -5 1]);
LY2 = get(ax2,'YLim');
Bildhoehe2 = get(ax2, 'position');
NumTicksY2 = abs((LY2(1)-LY2(2))/1);
set(ax2,'YTick', linspace(LY2(1),LY2(2),NumTicksY2+1));
n2 = get(gcf);
%
%%Change ylabel for subplot
hLabel1 = ylabel(ax1,'Amplitude in dB');
hLabel2 = ylabel(ax2,'Phase in \pi');
pos1 = get(hLabel1, 'Position');
pos2 = get(hLabel2, 'Position');
newX = min(pos1(1), pos2(1));
pos1(1) = newX;
pos2(1) = newX;
set(hLabel1, 'Position', pos1);
set(hLabel2, 'Position', pos2);
%
%%define xlabel
xlabel('Abstand in cm');
%
%%Define Legend
AX = legend(list,'Location','southoutside', 'orientation', 'horizontal');
AX.FontName = 'Helvetica';
Any suggestions? How do I know, what fonts are installed? Best regards, Henrik
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Cedric
am 16 Okt. 2017
Bearbeitet: Cedric
am 16 Okt. 2017
At the end
AX.Position(1:2) = [0.005, 0.02] ; % Move legend down and center a bit.
ax2.Position(4) = ax1.Position(4) ; % Set height axes 2 = height axes 1.
ax1.Position(2) = ax1.Position(2)+0.03 ; % Move axes 1 up a notch.
ax2.Position(2) = ax2.Position(2)-0.1 ; % Move axes 2 down.
% And optionally.
set(gcf, 'Color', 'white') ;
AX.Box = 'off' ;
But you could also choose to position "things" by yourself using AXES instead of relying on SUBPLOT. For this, see my answer here.
2 Kommentare
Cedric
am 17 Okt. 2017
Move comment from Henrik here [Cedric]
Your idea is very nice. One question. How can i add a title on top of the both subplots? This code at the beginning of the figure does not work anymore.
title('Impedanz');
I tried this one but it does not work either.
set(get(gca,'title','Position',[0 0 0]))
I am looking forward hearing from you.
Cedric
am 17 Okt. 2017
Bearbeitet: Cedric
am 17 Okt. 2017
Here is the way Jan proposes in the thread referenced in my answer. The alternative is to create an axes for this.
AX.Position(1:2) = [0.005, 0.02] ;
ax2.Position(4) = ax1.Position(4) ;
ax1.Position(2) = ax1.Position(2)+0.01 ;
ax2.Position(2) = ax2.Position(2)-0.11 ;
set(gcf, 'Color', 'white') ;
AX.Box = 'off' ;
uicontrol( 'Style', 'Text', 'Units', 'Normalized', ...
'Position', [0, 0.95, 1, 0.05], 'String', 'Impedanz', ...
'HorizontalAlignment', 'center', 'BackgroundColor', 'white', ...
'FontSize', 12, 'FontWeight', 'bold' ) ;
Note that I shifted the plots down a little as well.
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