CGAL 4.8.1 - 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 \( x\)-dimension. More... | |
Arr_parameter_space ArrTraits::ParameterSpaceInX_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 \( x\)-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 \( d \in\{0,1\}\) of \( C\). Formally, determines whether \( \lim_{t \rightarrow d} X(t)\) evaluates to \( b_l\), \( b_r\), or a value in between, where \( b_l\) and \( b_r\) are the \( x\)-coordinates of the left and right boundaries of the parameter space, respectively. Returns ARR_LEFT_BOUNDARY
, ARR_RIGHT_BOUNDARY
, or ARR_INTERIOR
, accordingly.