VITESS 2.11  Release Note
-------------------------

Plotting
--------

XY plots will be done using gnuplot now, if gnuplot is available.
Gnuplot windows allow scaling and zooming, and you may easily print plots.
A general plot template handling allows to connect any user specific plot software.

Mac OS X
--------

The GUI has been adopted to work with the Aqua version of wish of Mac OS X 10.7.2 Lion
and 10.6.8 Snow Leopard.
We suggest to install gnuplot software, as it shares needed libraries with
VITESS modules, see darwin_gnuplot.txt and install-unix.txt.

GUI
---
The GUI uses TK 8.5 as default now, as bltwish extensions are not necessary any more.
The framework for trajectory visualisation has been added.
You may see the estimated rest time for a simulation now.

Instrument Export
-----------------

You may export instrument definitions specified with the GUI to perl and python script files.
This helps to do scripted simulation jobs like optimisation in an environment different from Tcl/TK.

Modules
-------
The new module  monitor2D  written in C++ allows to plot arbitrary combinations of parameters
against each other in a 2D plot.
New C++ classes mathvector and mathmatrix support 3D vector and 3x3 matrix operations. 

The new module  sample_nxs  simulates coherent and incoherent scattering, absorption and
transmission based on the calculation of wavelength-dependent neutron cross sections
and the unit cell definition, i.e. the crystallographic structure, of the sample.

A new option for the sm_ensemble module allows to ignore the spin of the neutrons.

Bugfixes have been done for guide, guide_parallel, eval_elast2, and in general tool routines.
The neutron ID transmission has been added for all modules.
