dust3d/thirdparty/cgal/CGAL-4.13/include/CGAL/IO/write_ply_points.h

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// Copyright (c) 2015 Geometry Factory
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// You can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
// SPDX-License-Identifier: GPL-3.0+
//
// Author(s) : Simon Giraudot
#ifndef CGAL_WRITE_PLY_POINTS_H
#define CGAL_WRITE_PLY_POINTS_H
#include <CGAL/license/Point_set_processing_3.h>
#include <CGAL/config.h>
#if defined(CGAL_CFG_NO_CPP0X_RVALUE_REFERENCE) || defined(CGAL_CFG_NO_CPP0X_VARIADIC_TEMPLATES)
#error CGAL PLY writer requires a C++11 compiler
#endif
#include <tuple>
#include <CGAL/property_map.h>
#include <CGAL/point_set_processing_assertions.h>
#include <CGAL/IO/read_ply_points.h>
#include <CGAL/Iterator_range.h>
#include <CGAL/boost/graph/named_function_params.h>
#include <CGAL/boost/graph/named_params_helper.h>
#include <boost/version.hpp>
#include <iostream>
#include <iterator>
namespace CGAL {
/**
\ingroup PkgPointSetProcessingIOPly
Generates a %PLY property handler to write 3D points. Points are
written as 3 %PLY properties of type `FT` and named `x`, `y` and
`z`. `FT` is `float` if the points use
`CGAL::Simple_cartesian<float>` and `double` otherwise.
\sa `write_ply_points_with_properties()`
\tparam PointMap the property map used to store points.
*/
template <typename PointMap>
#ifdef DOXYGEN_RUNNING
std::tuple<PointMap, PLY_property<FT>, PLY_property<FT>, PLY_property<FT> >
#else
std::tuple<PointMap,
PLY_property<typename GetFTFromMap<PointMap>::type>,
PLY_property<typename GetFTFromMap<PointMap>::type>,
PLY_property<typename GetFTFromMap<PointMap>::type> >
#endif
make_ply_point_writer(PointMap point_map)
{
return std::make_tuple (point_map,
PLY_property<typename GetFTFromMap<PointMap>::type>("x"),
PLY_property<typename GetFTFromMap<PointMap>::type>("y"),
PLY_property<typename GetFTFromMap<PointMap>::type>("z"));
}
/**
\ingroup PkgPointSetProcessingIOPly
Generates a %PLY property handler to write 3D normal
vectors. Vectors are written as 3 %PLY properties of type `FT`
and named `nx`, `ny` and `nz`. `FT` is `float` if the vectors use
`CGAL::Simple_cartesian<float>` and `double` otherwise.
\sa `write_ply_points_with_properties()`
\tparam VectorMap the property map used to store vectors.
*/
template <typename VectorMap>
#ifdef DOXYGEN_RUNNING
std::tuple<VectorMap, PLY_property<FT>, PLY_property<FT>, PLY_property<FT> >
#else
std::tuple<VectorMap,
PLY_property<typename GetFTFromMap<VectorMap>::type>,
PLY_property<typename GetFTFromMap<VectorMap>::type>,
PLY_property<typename GetFTFromMap<VectorMap>::type> >
#endif
make_ply_normal_writer(VectorMap normal_map)
{
return std::make_tuple (normal_map,
PLY_property<typename GetFTFromMap<VectorMap>::type>("nx"),
PLY_property<typename GetFTFromMap<VectorMap>::type>("ny"),
PLY_property<typename GetFTFromMap<VectorMap>::type>("nz"));
}
/// \cond SKIP_IN_MANUAL
namespace internal {
namespace PLY {
template <typename T> void property_header_type (std::ostream& stream)
{
CGAL_assertion_msg (false, "Unknown PLY type");
stream << "undefined_type";
}
template <> void property_header_type<char> (std::ostream& stream) { stream << "char"; }
template <> void property_header_type<signed char> (std::ostream& stream) { stream << "char"; }
template <> void property_header_type<unsigned char> (std::ostream& stream) { stream << "uchar"; }
template <> void property_header_type<short> (std::ostream& stream) { stream << "short"; }
template <> void property_header_type<unsigned short> (std::ostream& stream) { stream << "ushort"; }
template <> void property_header_type<int> (std::ostream& stream) { stream << "int"; }
template <> void property_header_type<unsigned int> (std::ostream& stream) { stream << "uint"; }
template <> void property_header_type<float> (std::ostream& stream) { stream << "float"; }
template <> void property_header_type<double> (std::ostream& stream) { stream << "double"; }
template <typename T>
void property_header (std::ostream& stream, const PLY_property<T>& prop)
{
stream << "property ";
property_header_type<T>(stream);
stream << " " << prop.name << std::endl;
}
template <typename T>
void property_header (std::ostream& stream, const PLY_property<std::vector<T> >& prop)
{
stream << "property list uchar ";
property_header_type<T>(stream);
stream << " " << prop.name << std::endl;
}
template <std::size_t N>
struct Properties_header
{
template <class PLY_property_tuple>
static void write(std::ostream& stream, PLY_property_tuple& wrappers)
{
Properties_header<N-1>::write(stream, wrappers);
property_header (stream, std::get<N+1>(wrappers));
}
};
template <>
struct Properties_header<0>
{
template <class PLY_property_tuple>
static void write(std::ostream& stream, PLY_property_tuple& wrappers)
{
property_header (stream, std::get<1>(wrappers));
}
};
template <typename PropertyMap,
typename ... T>
void output_property_header (std::ostream& stream,
std::tuple<PropertyMap, PLY_property<T>... >&& current)
{
Properties_header<sizeof...(T)-1>::write(stream, current);
}
template <typename PropertyMap,
typename T>
void output_property_header (std::ostream& stream,
std::pair<PropertyMap, PLY_property<T> >&& current)
{
property_header (stream, current.second);
}
template <typename PropertyMap,
typename T,
typename NextPropertyHandler,
typename ... PropertyHandler>
void output_property_header (std::ostream& stream,
std::pair<PropertyMap, PLY_property<T> >&& current,
NextPropertyHandler&& next,
PropertyHandler&& ... properties)
{
property_header (stream, current.second);
output_property_header (stream, std::forward<NextPropertyHandler>(next),
std::forward<PropertyHandler>(properties)...);
}
template <typename PropertyMap,
typename ... T,
typename NextPropertyHandler,
typename ... PropertyHandler>
void output_property_header (std::ostream& stream,
std::tuple<PropertyMap, PLY_property<T>... >&& current,
NextPropertyHandler&& next,
PropertyHandler&& ... properties)
{
Properties_header<sizeof...(T)-1>::write(stream, current);
output_property_header (stream, std::forward<NextPropertyHandler>(next),
std::forward<PropertyHandler>(properties)...);
}
template <typename ForwardIterator,
typename PropertyMap>
void property_write (std::ostream& stream, ForwardIterator it, PropertyMap map)
{
stream << CGAL::oformat(get (map, *it));
}
template <typename T>
T no_char_character (const T& t) { return t; }
int no_char_character (const char& t) { return int(t); }
int no_char_character (const signed char& t) { return int(t); }
int no_char_character (const unsigned char& t) { return int(t); }
template <typename ForwardIterator,
typename PropertyMap,
typename T>
void simple_property_write (std::ostream& stream, ForwardIterator it,
std::pair<PropertyMap, PLY_property<T> > map)
{
if (CGAL::get_mode(stream) == IO::ASCII)
stream << no_char_character(get (map.first, *it));
else
{
typename PropertyMap::value_type value = get(map.first, *it);
stream.write (reinterpret_cast<char*>(&value), sizeof(value));
}
}
template <typename ForwardIterator,
typename PropertyMap,
typename T>
void simple_property_write (std::ostream& stream, ForwardIterator it,
std::pair<PropertyMap, PLY_property<std::vector<T> > > map)
{
const typename PropertyMap::reference value = get(map.first, *it);
if (CGAL::get_mode(stream) == IO::ASCII)
{
stream << value.size();
for (std::size_t i = 0; i < value.size(); ++ i)
stream << " " << no_char_character(value[i]);
}
else
{
unsigned char size = static_cast<unsigned char>(value.size());
stream.write (reinterpret_cast<char*>(&size), sizeof(size));
for (std::size_t i = 0; i < value.size(); ++ i)
{
T t = T(value[i]);
stream.write (reinterpret_cast<char*>(&t), sizeof(t));
}
}
}
template <typename ForwardIterator,
typename PropertyMap,
typename ... T>
void output_properties (std::ostream& stream,
ForwardIterator it,
std::tuple<PropertyMap, PLY_property<T>... >&& current)
{
property_write (stream, it, std::get<0>(current));
if (get_mode(stream) == IO::ASCII)
stream << std::endl;
}
template <typename ForwardIterator,
typename PropertyMap,
typename T>
void output_properties (std::ostream& stream,
ForwardIterator it,
std::pair<PropertyMap, PLY_property<T> >&& current)
{
simple_property_write (stream, it, std::forward<std::pair<PropertyMap, PLY_property<T> > >(current));
if (get_mode(stream) == IO::ASCII)
stream << std::endl;
}
template <typename ForwardIterator,
typename PropertyMap,
typename T,
typename NextPropertyHandler,
typename ... PropertyHandler>
void output_properties (std::ostream& stream,
ForwardIterator it,
std::pair<PropertyMap, PLY_property<T> >&& current,
NextPropertyHandler&& next,
PropertyHandler&& ... properties)
{
simple_property_write (stream, it, current);
if (get_mode(stream) == IO::ASCII)
stream << " ";
output_properties (stream, it, std::forward<NextPropertyHandler>(next),
std::forward<PropertyHandler>(properties)...);
}
template <typename ForwardIterator,
typename PropertyMap,
typename ... T,
typename NextPropertyHandler,
typename ... PropertyHandler>
void output_properties (std::ostream& stream,
ForwardIterator it,
std::tuple<PropertyMap, PLY_property<T>... >&& current,
NextPropertyHandler&& next,
PropertyHandler&& ... properties)
{
property_write (stream, it, std::get<0>(current));
if (get_mode(stream) == IO::ASCII)
stream << " ";
output_properties (stream, it, std::forward<NextPropertyHandler>(next),
std::forward<PropertyHandler>(properties)...);
}
} // namespace PLY
} // namespace internal
/// \endcond
/**
\ingroup PkgPointSetProcessingIOPly
Saves the range of `points` with properties to a
.ply stream. %PLY is either ASCII or binary depending on the value
of `CGAL::get_mode(stream)`.
Properties are handled through a variadic list of property
handlers. A `PropertyHandler` can either be:
- A `std::pair<PropertyMap, PLY_property<T> >` if the user wants
to write a scalar value T as a %PLY property (for example, writing
an `int` variable as an `int` %PLY property).
- A `std::tuple<PropertyMap, PLY_property<T>...>` if the
user wants to write a complex object as several %PLY
properties. In that case, a specialization of `Output_rep` must
be provided for `PropertyMap::value_type` that handles both ASCII
and binary output (see `CGAL::get_mode()`).
\sa `make_ply_point_writer()`
\sa `make_ply_normal_writer()`
\cgalRequiresCPP11
\tparam PointRange is a model of `ConstRange`. The value type of
its iterator is the key type of the named parameter `point_map`.
\tparam PropertyHandler handlers to recover properties.
\return `true` on success.
*/
template < typename PointRange,
typename ... PropertyHandler>
bool
write_ply_points_with_properties(
std::ostream& stream, ///< output stream.
const PointRange& points, ///< input point range.
PropertyHandler&& ... properties) ///< parameter pack of property handlers
{
CGAL_point_set_processing_precondition(points.begin() != points.end());
if(!stream)
{
std::cerr << "Error: cannot open file" << std::endl;
return false;
}
// Write header
stream << "ply" << std::endl
<< ((get_mode(stream) == IO::BINARY) ? "format binary_little_endian 1.0" : "format ascii 1.0") << std::endl
<< "comment Generated by the CGAL library" << std::endl
<< "element vertex " << points.size() << std::endl;
internal::PLY::output_property_header (stream, std::forward<PropertyHandler>(properties)...);
stream << "end_header" << std::endl;
// Write positions + normals
for(typename PointRange::const_iterator it = points.begin(); it != points.end(); it++)
{
internal::PLY::output_properties (stream, it, std::forward<PropertyHandler>(properties)...);
}
return ! stream.fail();
}
/**
\ingroup PkgPointSetProcessingIOPly
Saves the range of `points` (positions + normals, if available) to
a .ply stream. %PLY is either ASCII or binary depending on the
value of `CGAL::get_mode(stream)`.
\tparam PointRange is a model of `ConstRange`. The value type of
its iterator is the key type of the named parameter `point_map`.
\param stream output stream.
\param points input point range.
\param np optional sequence of \ref psp_namedparameters "Named Parameters" among the ones listed below.
\cgalNamedParamsBegin
\cgalParamBegin{point_map} a model of `ReadablePropertyMap` with value type `geom_traits::Point_3`.
If this parameter is omitted, `CGAL::Identity_property_map<geom_traits::Point_3>` is used.\cgalParamEnd
\cgalParamBegin{normal_map} a model of `ReadablePropertyMap` with value type
`geom_traits::Vector_3`.\cgalParamEnd If this parameter is omitted, normals are not written to the
output stream.\cgalParamEnd
\cgalParamBegin{geom_traits} an instance of a geometric traits class, model of `Kernel`\cgalParamEnd
\cgalNamedParamsEnd
\return true on success.
\cgalRequiresCPP11
*/
template <typename PointRange,
typename NamedParameters>
bool
write_ply_points(
std::ostream& stream,
const PointRange& points,
const NamedParameters& np)
{
using boost::choose_param;
// basic geometric types
typedef typename Point_set_processing_3::GetPointMap<PointRange, NamedParameters>::type PointMap;
typedef typename Point_set_processing_3::GetNormalMap<PointRange, NamedParameters>::type NormalMap;
bool has_normals = !(boost::is_same<NormalMap,
typename Point_set_processing_3::GetNormalMap<PointRange, NamedParameters>::NoMap>::value);
PointMap point_map = choose_param(get_param(np, internal_np::point_map), PointMap());
NormalMap normal_map = choose_param(get_param(np, internal_np::normal_map), NormalMap());
if (has_normals)
return write_ply_points_with_properties(
stream, points,
make_ply_point_writer(point_map),
make_ply_normal_writer(normal_map));
// else
return write_ply_points_with_properties(
stream, points,
make_ply_point_writer(point_map));
}
/// \cond SKIP_IN_MANUAL
// variant with default NP
template <typename PointRange>
bool
write_ply_points(
std::ostream& stream,
const PointRange& points)
{
return write_ply_points
(stream, points, CGAL::Point_set_processing_3::parameters::all_default(points));
}
#ifndef CGAL_NO_DEPRECATED_CODE
// deprecated API
template < typename ForwardIterator,
typename PointMap,
typename VectorMap >
CGAL_DEPRECATED_MSG("you are using the deprecated V1 API of CGAL::write_ply_points_and_normals(), please update your code")
bool
write_ply_points_and_normals(
std::ostream& stream, ///< output stream.
ForwardIterator first, ///< first input point.
ForwardIterator beyond, ///< past-the-end input point.
PointMap point_map, ///< property map: value_type of OutputIterator -> Point_3.
VectorMap normal_map) ///< property map: value_type of OutputIterator -> Vector_3.
{
CGAL::Iterator_range<ForwardIterator> points (first, beyond);
return write_ply_points
(stream, points,
CGAL::parameters::point_map (point_map).
normal_map (normal_map));
}
// deprecated API
template <typename ForwardIterator,
typename VectorMap
>
CGAL_DEPRECATED_MSG("you are using the deprecated V1 API of CGAL::write_ply_points_and_normals(), please update your code")
bool
write_ply_points_and_normals(
std::ostream& stream, ///< output stream.
ForwardIterator first, ///< first input point.
ForwardIterator beyond, ///< past-the-end input point.
VectorMap normal_map) ///< property map: value_type of OutputIterator -> Vector_3.
{
CGAL::Iterator_range<ForwardIterator> points (first, beyond);
return write_ply_points
(stream, points,
CGAL::parameters::normal_map (normal_map));
}
// deprecated API
template < typename ForwardIterator,
typename PointMap >
CGAL_DEPRECATED_MSG("you are using the deprecated V1 API of CGAL::write_ply_points(), please update your code")
bool
write_ply_points(
std::ostream& stream, ///< output stream.
ForwardIterator first, ///< first input point.
ForwardIterator beyond, ///< past-the-end input point.
PointMap point_map) ///< property map: value_type of OutputIterator -> Point_3.
{
CGAL::Iterator_range<ForwardIterator> points (first, beyond);
return write_ply_points
(stream, points,
CGAL::parameters::point_map(point_map));
}
// deprecated API
template < typename ForwardIterator >
CGAL_DEPRECATED_MSG("you are using the deprecated V1 API of CGAL::write_ply_points(), please update your code")
bool
write_ply_points(
std::ostream& stream, ///< output stream.
ForwardIterator first, ///< first input point.
ForwardIterator beyond) ///< past-the-end input point.
{
CGAL::Iterator_range<ForwardIterator> points (first, beyond);
return write_ply_points
(stream, points);
}
#endif // CGAL_NO_DEPRECATED_CODE
/// \endcond
} //namespace CGAL
#endif // CGAL_WRITE_PLY_POINTS_H