CGAL::Classification::Feature::Elevation< GeomTraits, PointRange, PointMap > Class Template Reference

#include <CGAL/Classification/Feature/Elevation.h>

Inherits from

CGAL::Classification::Feature_base.

Definition

template<typename GeomTraits, typename PointRange, typename PointMap>
class CGAL::Classification::Feature::Elevation< GeomTraits, PointRange, PointMap >

Feature based on local elevation.

The local position of the ground can be computed for urban scenes. This feature computes the distance to the local estimation of the ground. It is useful to discriminate the ground from horizontal roofs.

Its default name is "elevation".

Template Parameters

GeomTraits	model of CGAL Kernel.
PointRange	model of ConstRange. Its iterator type is RandomAccessIterator and its value type is the key type of PointMap.
PointMap	model of ReadablePropertyMap whose key type is the value type of the iterator of PointRange and value type is GeomTraits::Point_3.

Public Member Functions
	Elevation (const PointRange &input, PointMap point_map, const Grid &grid, float radius_dtm=-1.)
	constructs the feature.
Public Member Functions inherited from CGAL::Classification::Feature_base
const std::string &	name () const
	returns the name of the feature (initialized to abstract_feature for Feature_base).
void	set_name (const std::string &name)
	changes the name of the feature.
virtual float	value (std::size_t index)=0
	returns the value taken by the feature for at the item for the item at position index.

Constructor & Destructor Documentation

Elevation()

template<typename GeomTraits , typename PointRange , typename PointMap >

CGAL::Classification::Feature::Elevation< GeomTraits, PointRange, PointMap >::Elevation	(	const PointRange &	input,
		PointMap	point_map,
		const Grid &	grid,
		float	radius_dtm = -1.
	)

constructs the feature.

Parameters

input	point range.
point_map	property map to access the input points.
grid	precomputed Planimetric_grid.
radius_dtm	radius for digital terrain modeling (should be larger than the width and length of the largest building).