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## CGAL::compare_y

Comparison_result | compare_y ( Point_2<Kernel> p, Point_2<Kernel> q)
|  | compares Cartesian y-coordinates of p and q.
Comparison_result | compare_y ( Point_3<Kernel> p, Point_3<Kernel> q)
|  | compares Cartesian y-coordinates of p and q.

Comparison_result |
compare_y ( | Point_2<Kernel> p, Line_2<Kernel> l1, Line_2<Kernel> l2)
|  | compares the y-coordinates of p and the intersection of lines l1 and l2, see (a) in the figure above.
Comparison_result |
compare_y ( | Line_2<Kernel> l, Line_2<Kernel> h1, Line_2<Kernel> h2)
|  | compares the y-coordinates of the intersection of line l with line h1 and with line h2, see (b) in the figure above.
Comparison_result |
compare_y ( | Line_2<Kernel> l1, Line_2<Kernel> l2, Line_2<Kernel> h1, Line_2<Kernel> h2)
|  | compares the y-coordinates of the intersection of lines l1 and l2 and the intersection of lines h1 and h2 , see (c) in the figure above.

### See Also

CGAL::compare_xy
CGAL::compare_xyz
CGAL::compare_x
CGAL::compare_x_at_y
CGAL::compare_yx
CGAL::compare_y_at_x
CGAL::compare_z

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The CGAL Project . Tue, December 21, 2004 .