GRASS Programmer's Manual  6.5.svn(2014)-r66266
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e_intersect.h
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1 #ifndef GRASS_E_INTERSECT_H
2 #define GRASS_E_INTERSECT_H
3 
4 #define FZERO(X, TOL) (fabs(X)<TOL)
5 #define FEQUAL(X, Y, TOL) (fabs(X-Y)<TOL)
6 
7 /*int segment_intersection_2d_e(double ax1, double ay1, double ax2, double ay2, double bx1, double by1, double bx2, double by2,
8  double *x1, double *y1, double *x2, double *y2);
9 int segment_intersection_2d_test(double ax1, double ay1, double ax2, double ay2, double bx1, double by1, double bx2, double by2,
10  double *x1, double *y1, double *x2, double *y2);*/
11 
12 int segment_intersection_2d_tol(double ax1, double ay1, double ax2, double ay2, double bx1, double by1, double bx2, double by2,
13  double *x1, double *y1, double *x2, double *y2, double tol);
14 
15 int segment_intersection_2d(double ax1, double ay1, double ax2, double ay2, double bx1, double by1, double bx2, double by2,
16  double *x1, double *y1, double *x2, double *y2);
17 
18 
19 int almost_equal(double a, double b, int bits);
20 
21 #endif
b
float b
Definition: named_colr.c:8
segment_intersection_2d_tol
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)
Definition: e_intersect.c:345
segment_intersection_2d
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)
Definition: e_intersect.c:677
almost_equal
int almost_equal(double a, double b, int bits)
Definition: e_intersect.c:912