[Kst] Problems implementing cdf datasource

[George Staikos]

On June 21, 2004 04:38, Nicolas.Brisset at eurocopter.com wrote:
> as I announced some time ago, I am trying to implement a cdf datasource for
> kst (for more information on the cdf format from NASA's National Space
> Science Data Center, see http://nssdc.gsfc.nasa.gov/cdf/cdf_home.html). I
> plan to handle 0-dimensional variables only, i.e. scalar variables for
> which there is one data value for each sample (record in cdf terminology)
> as I think other variables would not make any sense for the moment.
>
> Looking at the datasource template and ascii examples, I have already
> implemented some of the functions, but I can't test them as I get an
> "undefined symbol" error when loading a cdf file through the data wizard.
> I use the CDFlib(...) routine defined in the C API of the CDF distribution
> inside this code, and I don't know how to instruct kst where the cdf
> library is at configure/compile time. As I'm not familiar neither with
> plugins nor with libtool nor with autotools configuration, I'd appreciate
> any help on that.

   Can you post more details on this?  Perhaps the exact error message that 
you get?  It might also help if you could send me your datasource plugin 
source code.  You can send it in private if you prefer.

> P.S. : I am using kst-0.97 for my tests, but from the mailing list archives
> it seems there have been a lot of changes since then. I hope the
> datasources API has not changed too much... and also that version 0.98 will
> be out shortly to try out the new features in a convenient way (no CVS
> acces from work :().

  You'll be happy to know that the data sources API has not changed one 
bit. :-)  If you aren't dealing with any streaming/realtime updating data 
sources, I recommend moving to the HEAD branch of Kst now.  I'm working on 
realtime data updates at the moment and I hope to have them functional this 
week.

-- 
George Staikos
KDE Developer			http://www.kde.org/
Staikos Computing Services Inc.	http://www.staikos.net/