Overview of Natgrid procedures

• Fortran single-precision
• Fortran double-precision
• C single-precision
• C double-precision
• NCL

Fortran single-precision

   NATGRIDS     -  primary function for gridding.
   NNSETI       -  set INTEGER parameter values.
   NNGETI       -  retrieve values for INTEGER parameters.
   NNSETR       -  set REAL parameter values.
   NNGETR       -  retrieve values for REAL parameters.
   NNSETC       -  set CHARACTER valued parameters.
   NNGETC       -  retrieve values for CHARACTER parameters.
   NNGETASPECTS -  get aspect values, if calculated.
   NNGETSLOPES  -  get slope values, if calculated.
   NNPNTINITS   -  initiate single point mode.
   NNPNTS       -  interpolate at a single point.
   NNPNTEND     -  terminate single point mode.
   NNGETWTS     -  get neighbors and weights.
  
Fortran double-precision

   NATGRIDD     -  primary function for gridding.
   NNSETI       -  set INTEGER parameter values.
   NNGETI       -  retrieve values for INTEGER parameters.
   NNSETRD      -  set DOUBLE PRECISION parameter values.
   NNGETRD      -  retrieve values for DOUBLE PRECISION parameters.
   NNSETC       -  set CHARACTER valued parameters.
   NNGETC       -  retrieve values for CHARACTER parameters.
   NNGETASPECTD -  get aspect values, if calculated.
   NNGETSLOPED  -  get slope values, if calculated.
   NNPNTINITD   -  initiate single point mode.
   NNPNTD       -  interpolate at a single point.
   NNPNTENDD    -  terminate single point mode.
   NNGETWTSD    -  get neighbors and weights.
  

C single-precision

   c_natgrids     -  primary function for gridding.
   c_nnseti       -  set int parameter values.
   c_nngeti       -  retrieve values for int parameters.
   c_nnsetr       -  set float parameter values.
   c_nngetr       -  retrieve values for float parameters.
   c_nnsetc       -  set char valued parameters.
   c_nngetc       -  retrieve values for char parameters.
   c_nngetaspects -  get aspect values, if calculated.
   c_nngetslopes  -  get slope values, if calculated.
   c_nnpntinits   -  initiate single point mode.
   c_nnpnts       -  interpolate at a single point.
   c_nnpntend     -  terminate single point mode.
   c_nngetwts     -  get neighbors and weights.


C double-precision

   c_natgridd     -  primary function for gridding.
   c_nnseti       -  set int parameter values.
   c_nngeti       -  retrieve values for int parameters.
   c_nnsetrd      -  set double parameter values.
   c_nngetrd      -  retrieve values for double parameters.
   c_nnsetc       -  set char valued parameters.
   c_nngetc       -  retrieve values for char parameters.
   c_nngetaspectd -  get aspect values, if calculated.
   c_nngetsloped  -  get slope values, if calculated.
   c_nnpntinitd   -  initiate single point mode.
   c_nnpntd       -  interpolate at a single point.
   c_nnpntendd    -  terminate single point mode.
   c_nngetwtsd    -  get neighbors and weights.
  
NCL

   natgrid       - primary function for gridding
   natgrids      - primary function for gridding, single-precision arithmetic
   natgridd      - primary function for gridding, double-precision arithmetic
   nnpnt         - interpolate at a single point
   nnpnts        - interpolate at a single point, single-precision arithmetic
   nnpntd        - interpolate at a single point, double-precision arithmetic
   nnpntinit     - initiate single point mode before nnpnt use
   nnpntinits    - initiate single point mode before nnpnts use
   nnpntinitd    - initiate single point mode before nnpntd use
   nnpntend      - terminates single-point mode (intercahngeable with nnpntendd)
   nnpntendd     - terminates single-point mode (intercahngeable with nnpntend)
   nnsetp        - set values for control parameters
   nngetp        - retrieve values of control parameters
   nngetaspects  - get aspect values if calculated
   nngetaspectd  - get aspect values if calculated, double-precision
   nngetslopes   - get slope values if calculated
   nngetsloped   - get slope values if calculated, double-precision
   nngetwts      - retrieve neighbors and weights
   nngetwtsd     - retrieve neighbors and weights, double-precision