This routine returns value at the given index. If value is precomputed and value at given index is returned else value is computing on the points for given index.
If a variable has more than one spacetime function, then result is first spacetime function in the overlapping region.
For vectorial variable
Type  Intent  Optional  Attributes  Name  

class(tem_varSys_op_type),  intent(in)  ::  fun  Description of the method to obtain the variables, here some preset values might be stored, like the space time function to use or the required variables. 

type(tem_varSys_type),  intent(in)  ::  varSys  The variable system to obtain the variable from. 

type(tem_time_type),  intent(in)  ::  time  Point in time at which to evaluate the variable. 

integer,  intent(in)  ::  iLevel  Level on which values are requested 

integer,  intent(in)  ::  idx(:)  Index of points in the growing array and variable val array to return. Size: nVals 

integer,  intent(in),  optional  ::  idxLen(:)  With idx as start index in contiguous memory, idxLength defines length of each contiguous memory Size: nVals 

integer,  intent(in)  ::  nVals  Number of values to obtain for this variable (vectorized access). 

real(kind=rk),  intent(out)  ::  res(:)  Resulting values for the requested variable. Dimension: n requested entries x nComponents of this variable Access: (iElem1)*fun%nComponents + iComp 
Type  Visibility  Attributes  Name  Initial  

integer,  private  ::  iStFun  
integer,  private  ::  iVal  
integer,  private  ::  pos  
type(tem_st_fun_listElem_type),  private,  pointer  ::  fPtr  
real(kind=rk),  private  ::  st_res(1,fun%nComponents)  
logical,  private  ::  found 