Thanks, it works..

# How do I change axes scale in a surface plot by a predefined factor?

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Hello,

I have a surface plot -

on x axis - [0,1,2.... 15];

on y axis - [0,1,2,...50];

I'd like to change the axes scale by multiply these two vector by a factor (different one on each axis), for exmaple by 12.5578 and thus changing only the axes lables.

I'm familair with XtickLabel and YTickLabel but I think it's less applicatble, mainly becaue this factor is not round.

Real life example - for instance when you want to change reperesntation from pixles to real units without changing the data.

Any thoughts?

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### Accepted Answer

### More Answers (1)

Mischa Kim
on 3 Jan 2021

Iron, if it just about changing the labels simply use xticklabels(). See the example below:

x = linspace(-10,10,200);

y = cos(x);

plot(x,y)

xticklocs = [-3*pi -2*pi -pi 0 pi 2*pi 3*pi];

xticks(xticklocs);

myfac = 10; % this would be your 12.5578

xticklabels(cellstr(num2str(xticklocs'*myfac)));

##### 4 Comments

Mischa Kim
on 10 Jan 2021

See this example:

x = linspace(-10,10,200);

y = cos(x);

figure(1)

plot(x,y)

xticklocs = [-3*pi -2*pi -pi 0 pi 2*pi 3*pi];

xticks(xticklocs);

figure(2)

plot(x,y)

xticklocs = -400:80:400; % these are the nice numbers

myfac = 400/(3*pi);

xticklabels(cellstr(num2str(xticklocs.')));

xticks(xticklocs/myfac);

If this does not help, share your code so I can provide specific input.

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