com.h

本源代码实现了通过网格插值的方法来进行有限元流线处理的结果

#define MMAXNOD   2200
#define MMAXBD    250
#define MMAXELE   500

#define MO       6
#define MF       (MO-1)*(MO-1) 
#define MG       (MO+1)*(MO+1) 
#define MB       3
#define ZERO     1.0E-40
#define PI       3.1415926535

/**********************************************************/
typedef struct
   {int       n,o,f;
    char      typ;  }    NOF;
typedef struct  
    { double load,fv,dfv;
      char   typ;        }  ROW;

typedef struct 
   {double x,y;
    int   fc[MB+1];
    ROW   *fh[MB+1];}       NODE;

typedef struct
  {int n[9];
   int vo,po,fo; }         ELEMENT;

typedef struct pivtyp
    { long  begin,end;
      struct pivtyp  *next; }   PIV;
  
typedef struct { double k,a; }   PAIR;

/**********************************************************/
#define Schar     sizeof(char)
#define Sint      sizeof(int)
#define Slong     sizeof(long)
#define Sfloat    sizeof(float)
#define Sdouble   sizeof(double)

#define SELEM     sizeof(ELEMENT)
#define SNOF      sizeof(NOF)
#define SROW      sizeof(ROW)
#define SPIV      sizeof(PIV)
#define SNODE     sizeof(NODE)

#define SQR(a)    (a)*(a)
#define ABS(a)    fabs(a)
/**********************************************************/