CGAL 6.2 - 2D Arrangements: CGAL::Arr_curve_data_traits_2< Tr, XData, Mrg, CData, Cnv >::Curve_2 Class Reference

CGAL 6.2 - 2D Arrangements

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CGAL::Arr_curve_data_traits_2< Tr, XData, Mrg, CData, Cnv >::Curve_2 Class Reference

`#include <CGAL/Arr_curve_data_traits_2.h>`

## Inherits from

Base_curve_2.

## Definition

template<typename Tr, typename XData, typename Mrg, typename CData, typename Cnv>
class CGAL::Arr_curve_data_traits_2< Tr, XData, Mrg, CData, Cnv >::Curve_2

The `Curve_2` class nested within the curve-data traits extends the `Base_traits_2::Curve_2` type with an extra data field of type `Data`.

## Creation
| Curve_2 ()
| constructs default
| Curve_2 (const Base_curve_2 &base)
| constructs curve from the given `base` curve with uninitialized data field.
| Curve_2 (const Base_curve_2 &base, const Data &data)
| constructs curve from the given `base` curve with an attached `data` field.

## Access Functions
const Curve_data & | data () const
| returns the data field (a non-const version, which returns a reference to the data object, is also available).
void | set_data (const Curve_data &data)
| sets the data field.