On Wed, Jun 26, 2013 at 11:27:21AM -0700, Kiarash Zamani Aghaie wrote:
> I am using Gwyddion 2.3...

I hope the version number is a typo.

> I would like to see the 1-D PSD function of a central region of my AFM
> data. I masked my region of interest as a rectangle.

So just switch to the statistical functions tool and select the
rectangle of interest with mouse.  There is no reasont to resort to
masking.

> Then, I inverted this region. Leveling tools work pretty well, because
> I have the option to just choose the masked or unmasked region.
> However, when I click on the 1-D statistical functions. The "Masking
> mode" region of the window at the bottom of the window is completely
> grayed out for me. It would be great if somebody can explain to me why
> I cannot see the 1-D PSD for the unmasked region. It is grayed out,
> and the default is "Use the entire image (ignore mask)". It would be
> great if I can change it to the "Exclude masked region".

Masking is limited to distrubtions we know how to calculate for
irregular regions of an arbitary shape.  Since no one knows how to
calculate the PSD[*], it can be calculated only for rectangular
regions – which, however, seems to be sufficient in your case.

Regards,

Yeti


[*] Technically, this is not true as I have figured out a method.  But
it is not available in Gwyddion yet.

------------------------------------------------------------------------------
This SF.net email is sponsored by Windows:

Build for Windows Store.

http://p.sf.net/sfu/windows-dev2dev
_______________________________________________
Gwyddion-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/gwyddion-users

Reply via email to