CGAL 6.2 - 2D and 3D Linear Geometry Kernel: CGAL::Homogeneous_converter< K1, K2, RTConverter, FTConverter > Class Template Reference

CGAL 6.2 - 2D and 3D Linear Geometry Kernel

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CGAL::Homogeneous_converter< K1, K2, RTConverter, FTConverter > Class Template Reference
Reference Manual » Cartesian/Homogeneous Conversion

`#include <CGAL/Homogeneous_converter.h>`

## Definition

template<typename K1, typename K2, typename RTConverter, typename FTConverter>
class CGAL::Homogeneous_converter< K1, K2, RTConverter, FTConverter >

`Homogeneous_converter` converts objects from the kernel traits `K1` to the kernel traits `K2`.

Those traits must be of the form `Homogeneous<RT1>` and `Homogeneous<RT2>` (or the equivalent with `Simple_homogeneous`). It then provides the following operators to convert objects from `K1` to `K2`.

The third template parameter `RTConverter` is a function object that must provide `K2::RT operator()(const K1::RT &n);` that converts `n` to an `K2::RT` that has the same value.

The default value of this parameter is `CGAL::NT_converter<K1::RT, K2::RT>`, which uses the conversion operator from `K1::RT` to `K2::RT`.

Similarly, the fourth template parameter must provide `K2::FT operator()(const K1::FT &n);` that converts `n` to an `K2::FT` that has the same value. Its default value is `CGAL::NT_converter<K1::FT, K2::FT>`.

See also
  `CGAL::Homogeneous<RingNumberType>`
  `CGAL::Simple_homogeneous<RingNumberType>`

## Creation
| Homogeneous_converter ()
| Default constructor.

## Operations
Similar operators as the one shown are defined for the other kernel traits geometric types `Point_3`, `Vector_2`...
K2::Point_2 | operator() (const K1::Point_2 &p)
| returns a `K2::Point_2` which coordinates are those of `p`, converted by `RTConverter`.