CGAL 5.5 - 2D Arrangements
|
Operations | |
Comparison_result | operator() (const ArrTraits::X_monotone_curve_2 &xcv1, const ArrTraits::X_monotone_curve_2 &xcv2, CGAL::Arr_curve_end ce) |
Given two \(x\)-monotone curves xcv1 and xcv2 and an enumeration ce that specifies either the minimum ends or the maximum ends of the curves where the curves have a vertical asymptote, compares the \(x\)-coordinate of the curves near their respective ends. More... | |
Comparison_result ArrTraits::CompareXNearBoundary_2::operator() | ( | const ArrTraits::X_monotone_curve_2 & | xcv1, |
const ArrTraits::X_monotone_curve_2 & | xcv2, | ||
CGAL::Arr_curve_end | ce | ||
) |
Given two \(x\)-monotone curves xcv1
and xcv2
and an enumeration ce
that specifies either the minimum ends or the maximum ends of the curves where the curves have a vertical asymptote, compares the \(x\)-coordinate of the curves near their respective ends.
Returns CGAL::SMALLER
, CGAL::EQUAL
, or CGAL::LARGER
accordingly. More precisely, compares the \(x\)-coordinates of the horizontal projection of a point \(p\) onto xcv1
and xcv2
. If xcv1
and xcv2
approach the bottom boundary-side, \(p\) is located far to the bottom, such that the result is invariant under a translation of \( p\) farther to the bottom. If xcv1
and xcv2
approach the top boundary-side, \(p\) is located far to the top in a similar manner.
compare_x_on_boundary_2
(xcv1
, xcv2
, ce
) = CGAL::EQUAL
.parameter_space_in_y_2
(xcv1
, ce
) = parameter_space_in_y_2
(xcv2
, ce
).parameter_space_in_y_2
(xcv1
, ce
) \( \neq\) CGAL::ARR_INTERIOR
.