simtb_SMsource

 simtb_SMsource()  - Contains the definitions of the 2-D SMs and their tissue types

 Usage:
  >> [z,TT] = simtb_SMsource(x, y, randx, randy, randrot, nV, sourceID);

 INPUTS:
 x         = x matrix over which z is evaluated (nV x nV, defined using meshgrid)
 y         = y matrix over which z is evaluated (nV x nV, defined using meshgrid)
 randx     = offset in x (in normalized units, [-1,1])
 randy     = offset in y (in normalized units, [-1,1])
 randrot   = rotation (in radians)
 sourceID  = ID of function to evaluate

 OUTPUTS:
 z =  nV x nV spatial map
 TT = Tissue Type [e.g., 1 = SIGNAL DROPOUT, 2 = WM, 3 = GM, 4 = CSF]

 see also: simtb_generateSM(), simtb_pickSM()