These are the tools to perform alignment through the calculation of residuals on each sensor and to fit points with straight line.
The fit is executed separately on X and Y. The results are stored in the container "TtFitRes". There you find the typical 4 parameters describing a straight line in 3D and some further info.

In order to use these tools you have to do some things:

- revert your pandaroot to revision 8160
- patch the file mvd/MvdReco/PndMvdStripClusterTask.cxx substituting it with the version present in this folder
- copy this CMakeLists.txt into the folder mvd/
- copy this MvdTrkLinkDef.h into the folder mvd/
- create an empty folder mvd/MvdTracking/LinFit (if still not present, please delete all the old stuff already present in this folder if you have it already, you don't need anymore those things)
- copy into this folder:

TtFitRes.h
TtFitRes.cxx
TtLinFitTask.h
TtLinFitTask.cxx
TtAliTask.h
TtAliTask.cxx 

- use "Fit.C" or "SmartAli.C" depending on what you want to do

All you need to load in your macro is the "libMvdTrk", which is anyway already included in the rootlogog

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I apologize for the fact that all this stuff is not working with later revisions, I will work on that asap :-)

Simone