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#ifndef GRASS_E_INTERSECT_H
#define GRASS_E_INTERSECT_H
#define FZERO(X, TOL) (fabs(X) < TOL)
#define FEQUAL(X, Y, TOL) (fabs(X - Y) < TOL)
/*int segment_intersection_2d_e(double ax1, double ay1, double ax2, double ay2,
double bx1, double by1, double bx2, double by2, double *x1, double *y1,
double *x2, double *y2); int segment_intersection_2d_test(double ax1, double
ay1, double ax2, double ay2, double bx1, double by1, double bx2, double by2,
double *x1, double *y1, double *x2, double *y2); */
int segment_intersection_2d_tol(double ax1, double ay1, double ax2, double ay2,
double bx1, double by1, double bx2, double by2,
double *x1, double *y1, double *x2, double *y2,
double tol);
int segment_intersection_2d(double ax1, double ay1, double ax2, double ay2,
double bx1, double by1, double bx2, double by2,
double *x1, double *y1, double *x2, double *y2);
int almost_equal(double a, double b, int bits);
#endif
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