How do i make full pcolor plot in axes and spesific plot of pcolor?

Greetings I would like to make my plot "full screen" in axes, but i don't know how to do this is my code

[X,Y] = meshgrid(0:.1:2.5); Z = peaks(X,Y); pcolor(Z); shading(gca,'interp'); grid on; set(gca,'layer','top');

the result

and how to make my pcolor plot like this example

Thanks

Answer 1

[Image Analyst]

Try using image() instead of pcolor().

[X,Y] = meshgrid(0:.01:2.5); 
Z = peaks(X,Y);
image(255*mat2gray(Z));
colormap(jet(256));
colorbar;
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);
% Give a name to the title bar.
set(gcf, 'Name', 'Demo by ImageAnalyst', 'NumberTitle', 'Off')

[Kaito]

many thanks for your answer sir :)

i already try your code and it's work but i make mistake in my question, i mean how make my pcolor plot full in axes not full screen, just only in axes because there is empty space in my axes in first picture and i would like to know how make my pcolor plot full like second picture with determine the coordinates and plot that coordinates looks like second picture.

once again i'm sorry for my mistake question and many thanks for your help sir :)

[Star Strider]

Try:

axis tight

[Kaito]

many thanks sir, its works :)

and how to make my pcolor plot like second picture sir?

[Image Analyst]

Run my code and then use line() and text() to annotate the image. Then look up tick marks in the help to see how you can change the tick labels. Use xlabel() and ylabel() to change the words beside the axes. Try all that and then give us your code and tell us what you're not able to do, if anything.

[Kaito]

ok sir i'll try

[Kaito]

i've a problem sir, when i use your code, the red line in my figure like first picture covered by the plot and command axis tight doesn't work to make full in axes, i want the plot behind red line, here is my code

figure;

% X bars for i = 1.5:7; cur_x = i * 3.8; line([cur_x, cur_x], [0 5], 'color', 'r', 'LineWidth', 1); drawnow; end;

% Y bars for i = 2:7; cur_y = i * 4; line([0 4],[cur_y, cur_y], 'color', 'r', 'LineWidth', 1); drawnow; end;

% X2 bars for i = 1.5:7; cur_x2 = i * 3.8; line([cur_x2, cur_x2], [25 30], 'color', 'r', 'LineWidth', 1); drawnow; end;

% Y2 bars for i = 1:8; cur_y2 = i * 3.5; line([25 30],[cur_y2, cur_y2], 'color', 'r', 'LineWidth', 1); drawnow; end;

% X line line( [5.7 cur_x], [5 5], 'color', 'r', 'LineWidth', 1);

% Y line line( [4 4], [8 cur_y], 'color', 'r', 'LineWidth', 1);

% X2 line line( [5.6 cur_x2], [25 25], 'color', 'r', 'LineWidth', 1);

% Y2 line line( [25 25], [3.5 cur_y2], 'color', 'r', 'LineWidth', 1);

grid on; hold on; xlabel('Widht(m)'); ylabel('Long(m)');

[X,Y] = meshgrid(0:.1:3.0); Z = peaks(X,Y); image(255*mat2gray(Z)); colormap(jet(256)); colorbar; shading(gca,'interp'); grid on; set(gca,'layer','top'); axis tight; % Give a name to the title bar. set(gcf, 'Name', 'Demo by ImageAnalyst', 'NumberTitle', 'Off');

Result

[Image Analyst]

Put the calls to line() after the call to image().

[Kaito]

what command should i put in the line sir?