igridgeo.h

有限元学习研究用源代码(老外的),供科研人员参考

#include <stdio.h>

#define       OK                 0
#define       FILE_ERROR         1
#define       WRONGSIGNATURE     2
#define       OUTOFMEM           3
#define       NCELLUNKNOWN       4
#define       NSIDEUNKNOWN       5
#define       NNODEUNKNOWN       6
#define       GEO_ERROR          7
#define       NO_DELIMITOR       8



#define       GEOSIGNATURE       "IGRIDGeometry1.00"
#define       KW_UNIT            "Unit{"
#define       KW_NCELL           "nCell{"
#define       KW_NSIDE           "nSide{"
#define       KW_NNODE           "nNode{"
#define       KW_CELL            "Cell{"
#define       KW_SIDE            "Side{"
#define       KW_NODE            "Node{"

struct igridgeo{
    double       unit;
    unsigned int ncell;
    unsigned int nside;
    unsigned int nnode;
    struct cell *cell;
    struct side *side;
    struct node *node;
};

struct cell{
    unsigned int type;
    double       property1, property2, property3, property4;
    unsigned int side[4];
};

struct side{
    unsigned int property;
    unsigned int node[2];
    unsigned int cell[2];
};

struct node{
    unsigned int property;
    double       x, y;
};

int readgeometry(char *, struct igridgeo *);
int checksignature(char *);
int readunit(FILE *, struct igridgeo *);
int readncell(FILE *, struct igridgeo *);
int readnside(FILE *, struct igridgeo *);
int readnnode(FILE *, struct igridgeo *);
int readcell(FILE *, struct igridgeo *);
int readside(FILE *, struct igridgeo *);
int readnode(FILE *, struct igridgeo *);
int updateside(struct igridgeo *, int, int);
int printgeometry(struct igridgeo *);