CGAL 6.0.2 - 2D Arrangements

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ArrangementApproximateTraits_2 Concept Reference
2D Arrangement Reference » Concepts » Geometry 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_geodesic_arc_on_sphere_traits_2`
  `CGAL::Arr_linear_traits_2<Kernel>`
  `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>`

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