Lineshape Function
This object is created under a Simulation object to allow an
arbitrary function to be used as the lineshape applied to all
transitions. For example, a the first derivative of a Gaussian
lineshape could be modelled using:
x/Width*exp(sqr(x/Width))
The default lineshape function would be voigt(x,lor,gau). The function is held in the comment field for the object; in
the constants window an
enlarged text window replaces the normal comments window. See expressions for more
details on the format of expressions. The function is normally evaluated out to WidthMult*(Lor+Gau+Width) from the line centre; the accuracy of the simulation will be controlled by WidthMult, nDF and SMargin settings in the Simulation object
Built In Variables
The following built in variables are available:
x

The distance from the line centre

Width
 The width parameter of the object.

Lor

The Lorentzian parameter from the toolbar and simulation object

Gau
 The Gaussian parameter from the toolbar and simulation object.

Stick
 Normally 0, but 1 if the overall line width is too small to convolute with, in which case the function is only evaluated at the line centre.

Settings
Active 
True if object is to be used 
nDebug 
Set non zero to write information to the log window on
each use 
Parameters
Width 
Used to determine how far from the line centre to extend
the convolution. It can also be used as a parameter in the expression.
