SetMaterialWeight
=================
```{function}  SetMaterialWeight(CSX, name, varargin)
```
Full definition:
```{code-block} matlab
function CSX = SetMaterialWeight(CSX, name, varargin)
```

Define the material weighting function(s)

The functions can use the variables:
- x,y,z
- rho for the distance to z-axis
- r   for the distance to origin
- a   for alpha (as in cylindircal and spherical coord systems)
- t   for theta (as in the spherical coord system
  
  all these variables are not weighted with the drawing unit defined by
  the grid

example:

    %material distribution as a rect-function with 4 periods
    start=[-500 -100 -500];
    stop =[ 500  100  500];
    CSX = AddMaterial(CSX, 'material');
    CSX = SetMaterialProperty(CSX, 'material', 'Epsilon', 1);
    CSX = SetMaterialWeight(CSX, 'material', 'Epsilon', ['(sin(4*z / 1000 *2*pi)>0)+1']);
    CSX = AddBox(CSX, 'material' ,10 , start, stop);

See also AddMaterial, SetMaterialProperty, InitCSX, DefineRectGrid



-----------------------
author: Thorsten Liebig