pcl::CopyIfFieldExists< PointInT, OutT > Struct Template Reference

A helper functor that can copy a specific value if the given field exists. More...

#include <pcl/type_traits.h>

Public Types
using	Pod = typename traits::POD< PointInT >::type

Public Member Functions
	CopyIfFieldExists (const PointInT &pt, const std::string &field, bool &exists, OutT &value)
	Constructor. More...
	CopyIfFieldExists (const PointInT &pt, const std::string &field, OutT &value)
	Constructor. More...
template<typename Key >
void	operator() ()
	Operator. More...

Detailed Description

template<typename PointInT, typename OutT>
struct pcl::CopyIfFieldExists< PointInT, OutT >

A helper functor that can copy a specific value if the given field exists.

Note

In order to actually copy the value an instance of this functor should be passed to a pcl::for_each_type loop. See the example below.

PointInT p;
bool exists;
float value;
using FieldList = typename pcl::traits::fieldList<PointInT>::type;
pcl::for_each_type<FieldList> (pcl::CopyIfFieldExists<PointT, float> (p, "intensity", exists, value));

Definition at line 132 of file type_traits.h.

Member Typedef Documentation

Pod

template<typename PointInT , typename OutT >

using pcl::CopyIfFieldExists< PointInT, OutT >::Pod = typename traits::POD<PointInT>::type

Definition at line 134 of file type_traits.h.

Constructor & Destructor Documentation

CopyIfFieldExists() [1/2]

template<typename PointInT , typename OutT >

pcl::CopyIfFieldExists< PointInT, OutT >::CopyIfFieldExists ( const PointInT &  pt, const std::string &  field, bool &  exists, OutT &  value  )

inline

Constructor.

Parameters

[in]	pt	the input point
[in]	field	the name of the field
[out]	exists	set to true if the field exists, false otherwise
[out]	value	the copied field value

Definition at line 142 of file type_traits.h.

CopyIfFieldExists() [2/2]

template<typename PointInT , typename OutT >

pcl::CopyIfFieldExists< PointInT, OutT >::CopyIfFieldExists ( const PointInT &  pt, const std::string &  field, OutT &  value  )

inline

Constructor.

Parameters

[in]	pt	the input point
[in]	field	the name of the field
[out]	value	the copied field value

Definition at line 156 of file type_traits.h.

Member Function Documentation

operator()()

template<typename PointInT , typename OutT >

template<typename Key >

void pcl::CopyIfFieldExists< PointInT, OutT >::operator() ( )

inline

Operator.

Data copy happens here.

Definition at line 165 of file type_traits.h.

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The documentation for this struct was generated from the following file:

• pcl/type_traits.h