\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.8 - 2D Arrangements

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ArrangementApproximateTraits_2 Concept Reference
Traits Concepts

## Definition

The concept `ArrangementApproximateTraits_2` refines the basic traits concept `ArrangementBasicTraits_2`. A model of this concept is able to approximate a point.

Refines:
  `ArrangementBasicTraits_2`

Has Models:

  `CGAL::Arr_conic_traits_2<RatKernel,AlgKernel,NtTraits>`

  `CGAL::Arr_non_caching_segment_traits_2<Kernel>`

  `CGAL::Arr_segment_traits_2<Kernel>`

  `CGAL::Arr_polycurve_traits_2<GeometryTraits_2>`

  `CGAL::Arr_polyline_traits_2<SegmentTraits_2>`

  `CGAL::Arr_rational_function_traits_2<AlgebraicKernel_d_1>`

Has Models:
  `CGAL::Arr_linear_traits_2<Kernel>`

See Also
  ArrangementConstructXMonotoneCurveTraits_2`, ArrangementXMonotoneTraits_2`, and `ArrangementTraits_2`

## Types
typedef unspecified_type | Approximate_number_type
| the number type used to approximate point coordinates, e.g., double.

## Functor Types
typedef unspecified_type | Approximate_2
| models the concept `ArrTraits::Approximate_2`.

## Accessing Functor Objects
Approximate_2 | approximate_2_object () const