CGAL 6.0.2 - 2D Arrangements

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ArrTraits::AreMergeable_2 Concept Reference
2D Arrangement Reference » Concepts » Function Object Concepts

## Definition

Refines
  `Functor`

Has models
  `ArrangementXMonotoneTraits_2::Are_mergeable_2`

## Operations
A model of this concept must provide:
bool | operator() (ArrTraits::X_monotone_curve_2 xc1, ArrTraits::X_monotone_curve_2 xc2)
| accepts two \(x\)-monotone curves `xc1` and `xc2` and determines whether they can be merged to form a single \(x\)-monotone curve.

## Member Function Documentation

## ◆ operator()()

bool ArrTraits::AreMergeable_2::operator() | ( | ArrTraits::X_monotone_curve_2 | xc1,
|  | ArrTraits::X_monotone_curve_2 | xc2
| ) |  |

accepts two \(x\)-monotone curves `xc1` and `xc2` and determines whether they can be merged to form a single \(x\)-monotone curve.

`xc1` and `xc2` are mergeable if their underlying curves are identical, they share a common endpoint, and they do not bend to form a non- \(x\)-monotone curve.