source: ThirdParty/mpqc_open/src/lib/math/isosurf/implicit.h@ e4036a

#ifndef _math_isosurf_implicit_h
#define _math_isosurf_implicit_h

typedef struct point {             /* a three-dimensional point */
    double x, y, z;                /* its coordinates */
} POINT;

typedef struct vertex {            /* surface vertex */
    POINT position, normal;        /* position and surface normal */
} VERTEX;

typedef struct vertices {          /* list of vertices in polygonization */
    int count, max;                /* # vertices, max # allowed */
    VERTEX *ptr;                   /* dynamically allocated */
} VERTICES;

#define TET     0  /* use tetrahedral decomposition */
#define NOTET   1  /* no tetrahedral decomposition  */

extern "C" {
    char * polygonize(double(*function)(double,double,double),
                      double size, int bounds,
                      double x, double y, double z,
                      int(*triproc)(int,int,int,VERTICES), int mode);
}

#endif