gui, image plot, ticks, y axis
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I am plotting an array "stdmap" of data by using
imagesc(stdmap,[100,500])
As you can see in image below, I want to limit the x & y marks to whole numbers, i.e. 1,2,3 in the y axis.
This number will change, but I just dont want the intermediate values as the y asxis represents line number so i just want integers.
Is it also possible to add the actual values onto the plot too?
Thanks
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Risposte (1)
Geoff Hayes
il 16 Set 2014
Jason - you can change the y-ticks on the axes as follows
% create the image
h = imagesc(stdmap,[100,500]);
% get the handle to the parent axes
hAxes = get(h,'Parent');
% create the new y-ticks at the integer positions from 1 to
% the maximum integer
newYTicks = 1:floor(max(get(hAxes,'YTick')));
% set the ticks and the labels for the y-axis
set(hAxes,'YTick',newYTicks,'YTickLabel',num2str(newYTicks))
We use the handle of the image, h, to get the handle to the parent axes, hAxes. Then we obtain the positions of the YTick tick marks (along the y-axis) and convert to newYTicks which will just be the integers from 1 to the (integer once floored) maximum tick position. Then we set the tick positions and labels.
As for adding the actual values on to the plot, do you mean into the figure itself at each "square"? I think you would have to use text objects for that.
4 Commenti
Volodymyr Zenin
il 4 Ago 2020
you can also try to let Matlab itself label your ticks, i.e.,
set(AX(1),'YTick',newYTicks)
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