I wrote a version of this which assumes a linear fit. Yeti suggested I allow
arbitrary order, and I tried, got bogged down in unfamiliar GTK territory, and
then had to go do more urgent things. I can try to find it if you only would be
interested in linear fits.
Luke
From: [email protected]
To: [email protected]
Date: Mon, 13 Jun 2011 12:55:31 +0000
Subject: Re: [Gwyddion-users] leveling data
Hi,
Path Level can help sometimes, but there are many occasions it is not as good
as a line by line level with exclusions based on height (or manually
chosen).The main one is when there are lots of islands, and it is not possible
to find 3 (straight) lines on teh background. The best option would be to allow
the use of the mask to define the exclusions from the line by line fit.This is
currently the major feature missing from gwyddion for me.Regards,Pete.
____________________________________________________________________________
Atomic Force Microscopy
Dr Peter Eaton and Dr Paul West
Available through all good bookshops, or direct from Oxford University Press at:
http://ukcatalogue.oup.com/product/9780199570454.do http://afmhelp.com
>
> On Fri, Jun 10, 2011 at 10:49:05AM -0500, Joe Smerdon wrote:
> > Is it possible to perform a line-by-line correction whilst excluding
> > some data from the fit? I ask because I have islands on my data and a
> > non-linear drift in z. So the plane-fit doesn't give me level data
> > and the line-by-line fit gives me bands of different contrast by the
> > islands.
>
> Hello, usually you can use the Path Level tool in such cases, see
>
>
> http://gwyddion.net/documentation/user-guide-en/editing-correction.html#path-level
>
> Regards,
>
> Yeti
>
>
>
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