mmd_t4_prism/MeshModule/mmh_vec3.h

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#ifndef MMH_VEC3_H
#define MMH_VEC3_H

#include "../Common.h"

#ifdef __cplusplus
extern "C"{
#endif

void mmr_vec3_add(
    const double vec_a[3],
    const double vec_b[3],
    IN double vec_c[3]);

void mmr_vec3_subst(
    const double vec_a[3],
    const double vec_b[3],
    IN double vec_c[3]);

//----------------------------------------------------------
//mmr_vec3_dot - to compute vector dot product of 3D vectors
//----------------------------------------------------------
double mmr_vec3_dot(
    const double vec_a[3],
    const double vec_b[3]);
void mmr_vec3_prod(
    const double* vec_a,    /* in: vector a */
    const double* vec_b,    /* in: vector b */
    double* vec_c   /* out: vector product axb */
);
double mmr_vec3_mxpr( /* returns: mixed product [a,b,c] */
    const double* vec_a,    /* in: vector a */
    const double* vec_b,    /* in: vector b */
    const double* vec_c /* in: vector c */
) ;
double mmr_vec3_length( /* returns: vector length */
    const double* vec   /* in: vector */
                        );
double mmr_distance3d( // returns distance between p1 and p2
                      const double p1[3], // point 1
                      const double p2[3]); // point 2

double mmr_point_plane_dist( // returns distance between p1 and p2
                      const double point[3], // point coords
                      const double plane[4]); // plane general equation

#ifdef __cplusplus
}
#endif 

#endif

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