I am attempting to plot two volumetric reconstructions created with MATLAB's volshow function.
I've tried calling subplot like I would with a plot but the second volshow object overwrites the first volshow object in the figure.
here's a code snippet that recreates the problem
vol1 = rand([10 10 10]);
vol2 = rand([10 10 10]);
subplot(1,2,1)
volshow(vol1);
subplot(1,2,2)
volshow(vol2);
How do I get both images to display simultaneously on the same figure?
I don't have access to the image processing toolbox so I can't test this.
The online help for volshow that you link only lists figure and uipanel objects as possible parents.
So I would try:
f = figure;
p1 = uipanel(f,'Position',[0,0,0.5,1]);
p2 = uipanel(f,'Position',[0.5,0,0.5,1]);
volshow(vol1, 'Parent',p1);
volshow(vol2, 'Parent',p2);
Related
I am creating a UI on app designer and I want to plot a bode in my UI.axes.
This figure contains two plots (magnitude, phase) and what I want to do is to plot each plot in different ui.axes.
I've managed to plot only the magnitude bode and the phase bode using the following code :
clc;
clear all;
num = [2];
den = [conv([1 1], conv([1 1], [1 1]))];
sys = tf(num, den);
[mag, phase, freq] = bode(sys, {0.1, 100});
bodemag(sys, freq)
h = bodeplot(sys, freq);
setoptions(h,'MagVisible','off');
This code gives me these two seperate plots :
I am trying to insert these plots in two different ui axes in my app.
Does any one have an idea or another approach on how to insert the plots ?
NB : I've tried the following :-
Writing the code direcly into the app designer but it creates a pop up instead
Using the plot(app.UiAxes, ...., ....) function but I can't seem to make it work
Can you show your code from appdesigner with the app.UIAxes.
Which Matlab realease do you use ?
As i know subplots are not supported in a UIAxes in older versions. So you have to make two UIAxes or use newer version.
If you write your code directly to appdesigner you are creating an Axes. There is an difference between UIAxes and Axes object. If you want to use Axes you have to set more properties to make it display inside your UIFigure of your App.
You tried this ?
I don't know if the UIAxes supports bodemag function. This could make sense, if it doesn't work with UIAxes.
bode = bodemag(app.UIAxes,sys, freq);
If UIAxes doesn't support bodemag then you have to do it with normal axes and code the positioning of this axes.
This is a good example how to do it.: https://de.mathworks.com/help/matlab/creating_guis/polar-plotting-app-gui-in-app-designer.html
And this is the part that is required additional.
% Create polar axes and position it in pixels
app.Pax = polaraxes(app.UIFigure);
app.Pax.Units = 'pixels';
app.Pax.Position = [260 55 230 230];
some time ago I have done topoplots of my MEG Data using ft_topoplotTFR and saved them as fig files. I have set the cfg.marker = 'on'.
Now I need the files but without the markers, because they just make the picture black and i cannot identify a lot. The markers are the Sensors. See in this picture:
TopoplotTFR
The black little circles that cover the surface are the markers I am talking about.
ft_topoplotTFR belongs to the fieldtrip toolbox and makes topoplots of Brain Data.
http://www.fieldtriptoolbox.org/reference/ft_topoplottfr
Can I somehow change the marker settings in the figure if i just have the fig file?
While we have no idea what ft_topoplotTFR is, the answer is going to follow more or less the same general steps: Load the figure, identify the plot objects, and modify their properties.
For example, we can generate a busy sample plot:
x = 0:0.05:10;
y1 = 5*rand(size(x));
y2 = 5*abs(sin(x));
plot(x, y1, '-d', x, y2, '-p');
savefig('test.fig');
close
We can then use openfig to load the figure so we can access the plotted data:
myfig = openfig('test.fig');
% Child of a basic figure window with a plot is the axes object
myaxes = myfig.Children;
% Child(ren) of a generic axes with plotted data are the plot object(s)
myls = myaxes.Children;
set(myls, 'Marker', 'none'); % Turn off markers
Which gives us:
I am trying to create a smaller plot within a plot in MATLAB, for example like the image of this MATLAB File Exchange Upload.
There, two figures are created and then both of them are plotted in one figure.
My problem however is that I already have two MATLAB figures from earlier simulations and I need to embed one figure into the other one, i.e., one would be small and the other plot would be big but in the same graph. Could someone suggest an easy way to do this?
This can be done using the copyobj function. You'll need to copy the Axes object from one figure to the other:
f(1) = openfig('fig1.fig');
f(2) = openfig('fig2.fig');
ax(1) = get(f(1),'CurrentAxes'); % Save first axes handle
ax(2) = copyobj(get(f(2),'CurrentAxes'),f(1)); % Copy axes and save handle
Then you can move and resize both axes as you like, e.g.
set(ax(2),'Position', [0.6, 0.6, 0.2, 0.2]);
I'm currently developing a GUI (programatically. No GUIDE has been used) for a project and I need to place 11 axes on the same GUI. I'm using the axes command to get the handles of the 11 controls:
h.AXES_ALL(1)=axes('parent',h.fig,'position',[L1 T W H]);
h.AXES_ALL(2)=axes('parent',h.fig,'position',[L2 T W H]);
h.AXES_ALL(3)=axes('parent',h.fig,'position',[L3 T W H]);
...
They all have the same dimensions and I'm using the for instruction to plot the data:
for i=1:11
set(h.PLOT(i),'parent',h.AXES_ALL(i),'XData',x_data,'YData',y_data);
end
But the problem is that the last plot (the 11th) is the one that is shown on the axes control (the 11th) and all the other axes are empty. My objective is to plot 11 curves on 11 different axes controls. They aren't located in the same position, just for the record.
THanks in advance!
Charlie
You said in your comment that you start with a single axes handle:
ha = axes;
And you try to create two plots with the same parent axes, but it does not work as you intended:
>> h.PLOT(1:2) = plot(ha,0,0)
h.PLOT =
195.0035 195.0035
That just replicated the same plot series handle. So, when you go to set the plot data and parent axes for each plot, you are just moving the plot from axes to axes, updating the data while you go.
Use the plot command in a loop, using the appropriate axes handle for each plot:
for ip=1:11,
h.PLOT_ALL(ip) = plot(h.AXES_ALL(ip),...);
end
Then when you update the plot's XData and YData as you want to do, you do not have to change the parent axes.
Suppose that I have 2 figures in MATLAB both of which plot data of size (512x512), however one figure is being plotted by an external program which is sets the axis parameters. The other is being plotted by me (using imagesc). Currently the figures, or rather, the axes are different sizes and my question is, how do I make them equal?.
The reason for my question, is that I would like to export them to pdf format for inclusion in a latex document, and I would like to have them be the same size without further processing.
Thanks in Advance, N
Edit: link to figures
figure 1: (big)
link to smaller figure (i.e. the one whose properties I would like to copy and apply to figure 1)
For this purpose use linkaxes():
% Load some data included with MATLAB
load clown
% Plot a histogram in the first subplot
figure
ax(1) = subplot(211);
hist(X(:),100)
% Create second subplot
ax(2) = subplot(212);
Now link the axes of the two subplots:
linkaxes(ax)
By plotting on the second subplot, the first one will adapt
imagesc(X)
First, you have the following:
Then:
Extending the example to images only:
load clown
figure
imagesc(X)
h(1) = gca;
I = imread('eight.tif');
figure
imagesc(I)
h(2) = gca;
Note that the configurations of the the first handle prevail:
linkaxes(h)
1.Get the handle of your figure and the axes, like this:
%perhaps the easiest way, if you have just this one figure:
myFigHandle=gcf;
myAxHandle=gca;
%if not possible, you have to search for the handles:
myFigHandle=findobj('PropertyName',PropertyValue,...)
%you have to know some property to identify it of course...
%same for the axes!
2.Set the properties, like this:
%set units to pixels (or whatever you prefer to make it easier to compare to the other plot)
set(myFigHandle, 'Units','pixels')
set(myAxHandle, 'Units','pixels')
%set the size:
set(myFigHandle,'Position',[x_0 y_0 width height]) %coordinates on screen!
%set the size of the axes:
set(myAxHandle,'Position',[x_0 y_0 width height]) %coordinates within the figure!
Ok, based on the answer of #Lucius Domitius Ahenoba here is what I came up with:
hgload('fig1.fig'); % figure whose axis properties I would like to copy
hgload('fig2.fig');
figHandles = get(0,'Children');
figHandles = sort(figHandles,1);
ax(1) = findobj(figHandles(1),'type','axes','-not','Tag','legend','-not','Tag','Colorbar');
ax(2) = findobj(figHandles(2),'type','axes','-not','Tag','legend','-not','Tag','Colorbar');
screen_pos1 = get(figHandles(1),'Position');
axis_pos1 = get(ax(1),'Position');
set(figHandles(2),'Position',screen_pos1);
set(ax(2),'Position',axis_pos1);
This is the 'before' result:
and this is the 'after' result:
Almost correct, except that the aspect ratios are still off. Does anybody know how to equalize everything related to the axes? (I realize that I'm not supposed to ask questions when posting answers, however adding the above as a comment was proving a little unwieldy!)