[Kst] DirFile RAW INT16/s type broken?

Matthew D Truch matt at truch.net
Thu Jan 28 18:59:42 CET 2010


> Plotting 16 bit signed RAW data from a DirFile.
> Works as expected in KST 1.7/FC10, but is broken in KST 1.8/FC12, 2.0
> 
> When broken, the data shows up with a sign-inverted pattern, looks like 
> it's being interpreted as UINT16, maybe UINT32 instead of INT16 as 
> specified.
> 
> It looks like DirFile handling changed (googling suggests from 
> internal?) on 1.7.

Yes, originally kst used its own internal dirfile reader (from which the
getdata library was created).  

> I also don't understand the effect of the kst-getdata plugin; installing 
> it from yum didn't solve the problem, the plugin doesn't appear to make 
> any change - is that perhaps because the desktop is Gnome and not KDE?.

The desktop you are using should not matter.  You make it sound like if
you remove the kst-getdata plugin that kst 1.8 will still read your
dirfile data (albeit incorrectly), which is weird.  

Do you have both kst 1.8 and 2.0 installed at the same time?  How did
you install kst 2.0?  What version of getdata do you have installed?  

> rpm -q kst-getdata
> kst-getdata-1.8.0-3.fc12.x86_64
> rpm -q kst
> kst-1.8.0-3.fc12.x86_64

-- 
"No matter where you go, there you are."
--------------------------
Matthew Truch
Department of Physics and Astronomy
University of Pennsylvania
matt at truch.net
http://matt.truch.net/
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