[neutron-mc] V_sample.comp

[Champion, JDM (Dickon)]

Hello

after tearing my hair out for a couple of days i would like to make a
comment on this module

if you wish to make a cuboid sample you MUST make the counter-intuitive
declaration of radius_o=0.0 or h=0.

the radius and height of a cylindrical sample are set by default, 

therefore the first check in the INITIALIZE section "  if (!radius_o || !h)
" will never get a true response

and it will never consider the possibility of a cuboid sample.

a fix for this problem and to prevent the future confusion of others might
be a check for the declaration of the xwidth, yheight, zthick etc....
instead

dickon

Dr Dickon Champion 
ISIS Facility 
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Rutherford Appleton Laboratory 
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