DGtal::LongvolReader< TImageContainer, TFunctor > Struct Template Reference

Aim: implements methods to read a "Longvol" file format (with DGtal::uint64_t value type). More...

#include <DGtal/io/readers/LongvolReader.h>

Data Structures
struct	HeaderField

Public Types
typedef TImageContainer	ImageContainer
typedef TImageContainer::Value	Value
typedef TFunctor	Functor

Public Member Functions
	BOOST_CONCEPT_ASSERT ((concepts::CUnaryFunctor< TFunctor, DGtal::uint64_t, Value >))
	BOOST_STATIC_ASSERT (ImageContainer::Domain::dimension==3)

Static Public Member Functions
static ImageContainer	importLongvol (const std::string &filename, const Functor &aFunctor=Functor())

Private Types
typedef unsigned char	voxel

Static Private Member Functions
template<typename Word >
static std::stringstream &	read_word (std::stringstream &fin, Word &aValue)
static const char *	getHeaderValue (const char *type, const HeaderField *header)
	Returns NULL if this field is not found. More...
static int	getHeaderValueAsInt (const char *type, int *dest, const HeaderField *header)
	Returns non-zero if failure. More...
static int	getHeaderField (const char *type, const HeaderField *header)
	Internal method which returns the index of a field or -1 if not found. More...

Static Private Attributes
static const char *	requiredHeaders []
	Global list of required fields in a .longvol file. More...

Detailed Description

template<typename TImageContainer, typename TFunctor = functors::Cast< typename TImageContainer::Value >>
struct DGtal::LongvolReader< TImageContainer, TFunctor >

Aim: implements methods to read a "Longvol" file format (with DGtal::uint64_t value type).

Description of template class 'LongvolReader'

The main import method "importLongvol" returns an instance of the template parameter TImageContainer.

The private methods have been backported from the Simplelvol project (see http://liris.cnrs.fr/david.coeurjolly).

Example usage:

...
#include <DGtal/helpers/StdDefs.h>
 
//Default image container = STLVector
typedef ImageSelector<Z3i::Domain, DGtal::uint64_t>::Type Image;
 
Image image = LongvolReader<Image>::importLongvol("data.longvol");
 
trace.info() << image <<endl;
...

Template Parameters

TImageContainer	the image container to use.
TFunctor	the type of functor used in the import (by default set to functors::Cast< TImageContainer::Value>).

See also

testLongvol.cpp

Definition at line 91 of file LongvolReader.h.

Member Typedef Documentation

Functor

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

typedef TFunctor DGtal::LongvolReader< TImageContainer, TFunctor >::Functor

Definition at line 97 of file LongvolReader.h.

ImageContainer

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

typedef TImageContainer DGtal::LongvolReader< TImageContainer, TFunctor >::ImageContainer

Definition at line 95 of file LongvolReader.h.

Value

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

typedef TImageContainer::Value DGtal::LongvolReader< TImageContainer, TFunctor >::Value

Definition at line 96 of file LongvolReader.h.

voxel

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

typedef unsigned char DGtal::LongvolReader< TImageContainer, TFunctor >::voxel

private

Definition at line 140 of file LongvolReader.h.

Member Function Documentation

BOOST_CONCEPT_ASSERT()

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

DGtal::LongvolReader< TImageContainer, TFunctor >::BOOST_CONCEPT_ASSERT

(

(concepts::CUnaryFunctor< TFunctor, DGtal::uint64_t, Value >)

)

BOOST_STATIC_ASSERT()

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

DGtal::LongvolReader< TImageContainer, TFunctor >::BOOST_STATIC_ASSERT

(

ImageContainer::Domain::dimension

= =3

)

getHeaderField()

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

static int DGtal::LongvolReader< TImageContainer, TFunctor >::getHeaderField ( const char *  type, const HeaderField *  header  )

staticprivate

Internal method which returns the index of a field or -1 if not found.

getHeaderValue()

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

static const char * DGtal::LongvolReader< TImageContainer, TFunctor >::getHeaderValue ( const char *  type, const HeaderField *  header  )

staticprivate

Returns NULL if this field is not found.

getHeaderValueAsInt()

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

static int DGtal::LongvolReader< TImageContainer, TFunctor >::getHeaderValueAsInt ( const char *  type, int *  dest, const HeaderField *  header  )

staticprivate

Returns non-zero if failure.

importLongvol()

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

static ImageContainer DGtal::LongvolReader< TImageContainer, TFunctor >::importLongvol ( const std::string &  filename, const Functor &  aFunctor = Functor()  )

static

Main method to import a Longvol into an instance of the template parameter ImageContainer.

Parameters

filename	the file name to import.
aFunctor	the functor used to import and cast the source image values into the type of the image container value (by default set to functors::Cast < TImageContainer::Value > .

Returns

an instance of the ImageContainer.

Referenced by DGtal::GenericReader< TContainer, 3, TValue >::importWithValueFunctor(), DGtal::GenericReader< TContainer, 3, DGtal::uint32_t >::importWithValueFunctor(), TEST_CASE(), and testLongvol().

read_word()

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

template<typename Word >

static std::stringstream & DGtal::LongvolReader< TImageContainer, TFunctor >::read_word ( std::stringstream &  fin, Word &  aValue  )

inlinestaticprivate

Generic read word (binary mode) in little-endian mode.

Parameters

fin	input stream.
aValue	value to write.

Returns

modified stream.

Definition at line 131 of file LongvolReader.h.

    {
      char* raw = reinterpret_cast<char*>(&aValue);
      for (std::size_t i = 0; i < sizeof(Word); ++i)
          raw[i] = fin.get();
      return fin;
    }

Field Documentation

requiredHeaders

template<typename TImageContainer , typename TFunctor = functors::Cast< typename TImageContainer::Value >>

const char* DGtal::LongvolReader< TImageContainer, TFunctor >::requiredHeaders[]

staticprivate

Global list of required fields in a .longvol file.

Definition at line 189 of file LongvolReader.h.

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

• LongvolReader.h