How can I incorporate both the x-axis and a reversed y-axis without... (2024)

clear all;

clc;

a = [0 0 1; 1 1 0; 1 0 1];

x = linspace(-1, 1, 3);

y = linspace(2, -2, 3); % Define y from positive to negative

% First subplot with y-axis from 2 to -2

subplot(121);

imagesc(x, y, a); % Plot the data

set(gca, 'YDir', 'normal'); % Make sure the y-axis starts from the bottom

title('Y Axis from 2 to -2');

xlabel('x');

ylabel('y');

% Second subplot with y-axis labels reversed

subplot(122);

imagesc(x, y, a); % Plot the data

set(gca, 'YDir', 'normal'); % Keep the y-axis direction normal

% Get the current y-tick locations

yticks = get(gca, 'YTick');

% Map the y-tick locations to the reversed y-values

% The new y-tick labels should match the reversed y values but the data should stay the same

new_yticklabels = linspace(max(y), min(y), numel(yticks));

% Set the y-tick labels to the reversed y-values

set(gca, 'YTickLabel', new_yticklabels);

title('Y Axis Reversed');

xlabel('x');

ylabel('y');

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  https://in.mathworks.com/matlabcentral/answers/2071481-how-can-i-incorporate-both-the-x-axis-and-a-reversed-y-axis-without-altering-the-plot-but-only-adjus#comment_3033626

• Link

  Direct link to this comment

  https://in.mathworks.com/matlabcentral/answers/2071481-how-can-i-incorporate-both-the-x-axis-and-a-reversed-y-axis-without-altering-the-plot-but-only-adjus#comment_3034451

clear all

clc

a = [0 0 1; 1 1 0; 1 0 1];

x = linspace(-1, 1, 3);

y = linspace(-2, 2, 3);

% Plot with normal y-axis

subplot(121)

imagesc(x, y, a);

set(gca, 'YDir', 'normal'); % This keeps the y-axis direction as is

title('Normal Y-Axis');

% Plot with flipped y-axis labels

subplot(122)

imagesc(x, y, a); % Keep the matrix 'a' the same

set(gca, 'YDir', 'reverse'); % This flips the y-axis direction

title('Flipped Y-Axis');