CGAL 6.1 - 2D Arrangements

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AosTraits::CompareYAtX_2 Concept Reference
Reference Manual » Concepts » Function Object Concepts

## Definition

Refines
  `AdaptableBinaryFunction`

Has models
  `AosBasicTraits_2::Compare_y_at_x_2`

## Operations
A model of this concept must provide:
Comparison_result | operator() (AosTraits::Point_2 p, AosTraits::X_monotone_curve_2 xc)
| compares the \(y\)-coordinates of `p` and the vertical projection of `p` on `xc`, and returns `CGAL::SMALLER`, `CGAL::EQUAL`, or `CGAL::LARGER` according to the result.