CGAL 4.5 - 2D Arrangements
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Operations | |
Arr_parameter_space | operator() (const ArrTraits::X_monotone_curve_2 &xcv, Arr_curve_end ce) |
Given an x-monotone curve xcv and an enumeration ce that specifies either the minimum or the maximum end of the curve, determines the location of the curve end along the y-dimension. More... | |
Arr_parameter_space ArrTraits::ParameterSpaceInY_2::operator() | ( | const ArrTraits::X_monotone_curve_2 & | xcv, |
Arr_curve_end | ce | ||
) |
Given an x-monotone curve xcv
and an enumeration ce
that specifies either the minimum or the maximum end of the curve, determines the location of the curve end along the y-dimension.
The variable xcv
identifies the parametric curve C(t)=(X(t),Y(t)) defined over an open or half-open interval with endpoints 0 and 1. The enumeration ce
identifies an open end d∈{0,1} of C. Formally, determines whether limt→dY(t) evaluates to bb, bt, or a value in between, where bb and bt are the y-coordinates of the bottom and top boundaries of the parameter space, respectively. Returns ARR_BOTTOM_BOUNDARY
, ARR_TOP_BOUNDARY
, or ARR_INTERIOR
, accordingly.
ArrTraits::Bottom_side_category
is not convertible to Arr_open_side_tag
then the result is not ARR_BOTTOM_BOUNDARY
. ArrTraits::Top_side_category
is not convertible to Arr_open_side_tag
then the result is not ARR_TOP_BOUNDARY
.