compare

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CGAL::compare_xyz

Depending on which Cgal kernel is used, different versions of this global function are available. This is described below.

With the basic 3D Kernel (see Chapter 9)

Comparison_result	compare_xyz ( Point_3<Kernel> p, Point_3<Kernel> q)
		Compares the Cartesian coordinates of points p and q lexicographically in xyz order: first x-coordinates are compared, if they are equal, y-coordinates are compared, and if both x- and y- coordinate are equal, z-coordinates are compared.

With the 3D Spherical Kernel (see Chapter 12)

If this kernel is used, in addition to the function and the combination of 2D types described above, another version of the function is provided.

Comparison_result	compare_xyz ( Circular_arc_point_3<SphericalKernel> p, Circular_arc_point_3<SphericalKernel> q)
		Compares the Cartesian coordinates of points p and q lexicographically.

Comparison_result	compare_xyz ( Circular_arc_point_3<SphericalKernel> p, Point_3<SphericalKernel> q)
		Compares the Cartesian coordinates of points p and q lexicographically.