CGAL 6.1.2 - 2D Arrangements

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AosIdentifiedHorizontalTraits_2 Concept Reference
Reference Manual » Concepts » Geometry Traits Concepts

## Definition

A model of the concept `AosIdentifiedHorizontalTraits_2` must be used when the parameter space of the surface, the arrangement is embedded on, is identified on the bottom and top sides and curves inserted into the arrangement are expected to reach these boundary sides.

Refines
  `AosBasicTraits_2`

See also
  `AosIdentifiedVerticalTraits_2`
  `AosOpenBottomTraits_2`
  `AosClosedBottomTraits_2`
  `AosContractedBottomTraits_2`
  `AosOpenTopTraits_2`
  `AosClosedTopTraits_2`
  `AosContractedTopTraits_2`

## Categories
typedef unspecified_type | Bottom_side_category
| Must be convertible to `CGAL::Arr_identified_side_tag`.
typedef unspecified_type | Top_side_category

## Functor Types
typedef unspecified_type | Compare_x_on_boundary_2
| models the concept `AosTraits::CompareXOnBoundary_2`.
typedef unspecified_type | Is_on_x_identification_2
| models the concept `AosTraits::IsOnXIdentification_2`.

## Accessing Functor Objects
Is_on_x_identification_2 | is_on_x_identification_2_object () const
Compare_x_on_boundary_2 | compare_x_on_boundary_2_object () const