MATLAB: How to adjust the shape on the second monitor screen?
I only use an external monitor connected to my laptop (laptop screen is off). When I try to make a MATLAB shape fit the screen, it only gets a size large enough to fit the laptop screen (which has a lower resolution). I am using the following:
figure('outerposition',get(0,'screensize')); % or 'monitorpositions'
I even tried:
figure('outerposition',[0 0 1 1.2]);
but it does not, and the pattern is only suitable for part of the monitor screen.
Any help would be greatly appreciated as I am out of idea.
P.-S. In the end, I would like the shape to fit 90% of (for example) the screen (width and height).
Thanks in advance!
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The problem may be related to this note in the documentation :
MATLAB sets the display information values for this property at startup. The values are static. If the system settings are displayed, the values are not updated. To update the values, restart MATLAB.
On my desktop, starting with Matlab with only one active screen, you can:
>> get(0,'MonitorPositions')
ans =
1 1 1280 1024
and even if I try to activate the screen later, it doesn't change . However, if I activate the second screen and then restart Matlab, I get:
>> get(0,'MonitorPositions')
ans =
-1919 -123 1920 1080
1 1 1280 1024
And then I can set a digit like this:
figure('OuterPosition',[-1920 -123 3200 1080]);
which covers both screens.
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This solution is based on a function screensize
written by Doug Schwartz on this Newsreader thread .
I did some quick tests, they seem to return the desired results, find my adaptation at the bottom of this post.
Usage example
Full screen, monitor 2
% Pass the monitor number to the screensize function, this example uses monitor 2
sz = screensize(2);
% The function returns pixel values, so must use units pixels
% Set the outerposition according to that.
figure('units', 'pixels', 'outerposition', sz)
Just filling 90% of the screen, monitor 2:
sz = screensize(2); pad = 0.05; % 5% padding all around szpadded = [sz(1:2) + sz(3:4)*pad, sz(3:4)*(1-2*pad)]; figure('units', 'pixels', 'outerposition', szpadded);
screensize
function
Doug's original code relied on moving the mouse pointer to get positions, I'm not sure why and minified this code. I also removed code duplication, etc. to make things a little more compact. The function mainly relies on getting an array of screen devices from the back of java.
function ss_out = screensize(screen_number)
%screensize: return screen coordinates of multiple monitors.
% Version: 1.0, 26 June 2008 Author: Douglas M. Schwarz
% Version: 1.1, 21 July 2017 Author: Wolfie
persistent myss
if isempty(myss)
% Get Screen Devices array.
sd = java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment.getScreenDevices;
% Initialize screensize array.
num_screens = length(sd);
myss = zeros(num_screens,4);
% Loop over all Screen Devices.
for ii = 1:num_screens
bounds = sd(ii).getDefaultConfiguration.getBounds;
myss(ii,:) = [bounds.x, bounds.y, bounds.width, bounds.height];
end
end
num_screens = size(myss,1);
if nargin == 0
screen_number = 1:num_screens;
end
screen_index = min(screen_number,num_screens);
ss_out = myss(screen_index,:);
end
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