\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.8 - Spatial Sorting

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CGAL::Spatial_sort_traits_adapter_2< Base_traits, PointPropertyMap > Class Template Reference
Traits Classes

`#include <CGAL/Spatial_sort_traits_adapter_2.h>`

## Inherits from

Base_traits.

## Definition

Given a property map associating a key to a point, the class `Spatial_sort_traits_adapter_2` induces a spatial reorder of the keys instead of the points, the comparisons being done on the associated points.

In other words, the traits provides to a spatial sort algorithm a point type which is a key, while the actual point type is `Base_traits::Point_2`.

Template Parameters

  Base_traits | must be a model for `SpatialSortingTraits_2`.
  PointPropertyMap | must be a model of `ReadablePropertyMap` with value type `Base_traits::Point_2`.

Is Model Of:
  `SpatialSortingTraits_2`

Examples:
  Spatial_sorting/sp_sort_using_property_map_2.cpp.

## Types
boost::property_traits < PointPropertyMap >::key_type | Point_2

## Creation
| Spatial_sort_traits_adapter_2 (Base_traits base=Base_traits())
| Spatial_sort_traits_adapter_2 (const PointPropertyMap &ppmap, Base_traits base=Base_traits())

## Operations
const PointPropertyMap & | point_property_map () const
| Returns a const reference to the point property map.