Problem when plotting a matrix
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When I use the 'imagesc' function to plot the image with scaled colors, the value on the y coordinate always goes from the min to max from top to bottom, which makes the figure very weird..
I want the y axis to start from 0 to 1, as we usually labelled it..
But even if I get the bottom half and inverse the sequence in my 'Y'(so it goes from 0 to 1), but when plotted, it will again always label it from the min to max from top to bottom... is there any ways I can fix it?
f1 = figure;
imagesc(X,Y,abs(log(Z1shift)));
colorbar;
title('Dispersion M_x');
xlabel('k_x', 'FontSize', 30);
ylabel('f/Hz','FontSize', 30);
set(gca, 'FontSize', 20);
saveas(f1, [sname 'Mx'], 'png');
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Agnish Dutta
le 26 Fév 2019
Modifié(e) : Agnish Dutta
le 26 Fév 2019
From what I understand, you want to plot the values of 'abs(log(Z1shift))' matrix in a particular range.
imagesc(x,y,C) specifies the image location. Use x and y to specify the locations of the corners corresponding to C(1,1) and C(m,n). To specify both corners, set x and y as two-element vectors. To specify the first corner and let imagesc determine the other, set x and y as scalar values. The image is stretched and oriented as applicable.
Refer to the following link for more information:
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