How to enlarge image in inpolygon?

לק"י

Hi guys,

I use inpolygon command and I can't enlarge the image which I need to draw the polygon on. the magnidication button is grey. I'm adding an image to show you.

thanks!

[darova]

Can you explain more. I don't get

[Adam Danz]

use xlim() and ylim(). You may also want to see aspect ratio ("axis equal").

[Amit Ifrach]

לק"י

Hi adam, thanks!

I did use the xlimand ylim, but somewhy it does not limit the axis. I followed the technical page.

This is the code:

figure(1)
scatter(xnm,ynm, 1, 'filled')
xlim=([1.5*10^4 2.8*10^4])
ylim=([1.2*10^4 2.6*10^4])

and when I run it, it doesn't limit them.

Thanks!

[Amit Ifrach]

לק"י

Hi davora! I seen your comment jsut now. I just want to do inpolygon in specific very small part of the image with high accuracy contour. for that I need to enlarge the image like, which I can't (the magnification button is not active, its grey). have I managed to explain myself better?

Thanks!

[Rik]

Use xlim([1.5*10^4 2.8*10^4]) instead (without the =).

[Amit Ifrach]

לק"י

Hi rik, thanks!

I used it in 2 variations and got this errors:

I think the matrix sshould be o.k because there are only 2 objects per vector.

Please, if you can, can you explain me what went wrong and why? I would like to learn for the next time to deal with these kind of problems.

Thank you very very much!

[Amit Ifrach]

לק"י

well I found out it was because xlim and ylim were defined previously as variables. i delted them and put it in the correct place and it worked. thanks you all!!