/usr/include/boost/geometry/io/svg
Edit: /usr/include/boost/geometry/io/svg/write.hpp (12159B)
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2009-2012 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland.
// This file was modified by Oracle on 2016.
// Modifications copyright (c) 2016, Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_GEOMETRY_IO_SVG_WRITE_HPP
#define BOOST_GEOMETRY_IO_SVG_WRITE_HPP
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace svg
{
template
struct svg_point
{
template
static inline void apply(std::basic_ostream& os,
Point const& p, std::string const& style, double size)
{
os << "(p)
<< "\" cy=\"" << geometry::get<1>(p)
<< "\" r=\"" << (size < 0 ? 5 : size)
<< "\" style=\"" << style << "\"/>";
}
};
template
struct svg_box
{
template
static inline void apply(std::basic_ostream& os,
Box const& box, std::string const& style, double)
{
// Prevent invisible boxes, making them >=1, using "max"
BOOST_USING_STD_MAX();
typedef typename coordinate_type::type ct;
ct x = geometry::get(box);
ct y = geometry::get(box);
ct width = max BOOST_PREVENT_MACRO_SUBSTITUTION (ct(1),
geometry::get(box) - x);
ct height = max BOOST_PREVENT_MACRO_SUBSTITUTION (ct(1),
geometry::get(box) - y);
os << "";
}
};
template
struct svg_segment
{
template
static inline void apply(std::basic_ostream& os,
Segment const& segment, std::string const& style, double)
{
typedef typename coordinate_type::type ct;
ct x1 = geometry::get<0, 0>(segment);
ct y1 = geometry::get<0, 1>(segment);
ct x2 = geometry::get<1, 0>(segment);
ct y2 = geometry::get<1, 1>(segment);
os << "";
}
};
/*!
\brief Stream ranges as SVG
\note policy is used to select type (polyline/polygon)
*/
template
struct svg_range
{
template
static inline void apply(std::basic_ostream& os,
Range const& range, std::string const& style, double)
{
typedef typename boost::range_iterator::type iterator;
bool first = true;
os << "<" << Policy::prefix() << " points=\"";
for (iterator it = boost::begin(range);
it != boost::end(range);
++it, first = false)
{
os << (first ? "" : " " )
<< geometry::get<0>(*it)
<< ","
<< geometry::get<1>(*it);
}
os << "\" style=\"" << style << Policy::style() << "\"/>";
}
};
template
struct svg_poly
{
template
static inline void apply(std::basic_ostream& os,
Polygon const& polygon, std::string const& style, double)
{
typedef typename geometry::ring_type::type ring_type;
typedef typename boost::range_iterator::type iterator_type;
bool first = true;
os << "(*it)
<< ","
<< geometry::get<1>(*it);
}
// Inner rings:
{
typename interior_return_type::type
rings = interior_rings(polygon);
for (typename detail::interior_iterator::type
rit = boost::begin(rings); rit != boost::end(rings); ++rit)
{
first = true;
for (typename detail::interior_ring_iterator::type
it = boost::begin(*rit); it != boost::end(*rit);
++it, first = false)
{
os << (first ? "M" : " L") << " "
<< geometry::get<0>(*it)
<< ","
<< geometry::get<1>(*it);
}
}
}
os << " z \" style=\"" << style << "\"/>";
}
};
struct prefix_linestring
{
static inline const char* prefix() { return "polyline"; }
static inline const char* style() { return ";fill:none"; }
};
struct prefix_ring
{
static inline const char* prefix() { return "polygon"; }
static inline const char* style() { return ""; }
};
template
struct svg_multi
{
template
static inline void apply(std::basic_ostream& os,
MultiGeometry const& multi, std::string const& style, double size)
{
for (typename boost::range_iterator::type
it = boost::begin(multi);
it != boost::end(multi);
++it)
{
Policy::apply(os, *it, style, size);
}
}
};
}} // namespace detail::svg
#endif // DOXYGEN_NO_DETAIL
#ifndef DOXYGEN_NO_DISPATCH
namespace dispatch
{
/*!
\brief Dispatching base struct for SVG streaming, specialized below per geometry type
\details Specializations should implement a static method "stream" to stream a geometry
The static method should have the signature:
template
static inline void apply(std::basic_ostream& os, G const& geometry)
*/
template ::type>
struct svg
{
BOOST_MPL_ASSERT_MSG
(
false, NOT_OR_NOT_YET_IMPLEMENTED_FOR_THIS_GEOMETRY_TYPE
, (Geometry)
);
};
template
struct svg : detail::svg::svg_point {};
template
struct svg : detail::svg::svg_segment {};
template
struct svg : detail::svg::svg_box {};
template
struct svg
: detail::svg::svg_range {};
template
struct svg
: detail::svg::svg_range {};
template
struct svg
: detail::svg::svg_poly {};
template
struct svg
: detail::svg::svg_multi
<
MultiPoint,
detail::svg::svg_point
<
typename boost::range_value::type
>
>
{};
template
struct svg
: detail::svg::svg_multi
<
MultiLinestring,
detail::svg::svg_range
<
typename boost::range_value::type,
detail::svg::prefix_linestring
>
>
{};
template
struct svg
: detail::svg::svg_multi
<
MultiPolygon,
detail::svg::svg_poly
<
typename boost::range_value::type
>
>
{};
template
struct devarianted_svg
{
template
static inline void apply(OutputStream& os,
Geometry const& geometry,
std::string const& style,
double size)
{
svg::apply(os, geometry, style, size);
}
};
template
struct devarianted_svg >
{
template
struct visitor: static_visitor
{
OutputStream& m_os;
std::string const& m_style;
double m_size;
visitor(OutputStream& os, std::string const& style, double size)
: m_os(os)
, m_style(style)
, m_size(size)
{}
template
inline void operator()(Geometry const& geometry) const
{
devarianted_svg::apply(m_os, geometry, m_style, m_size);
}
};
template
static inline void apply(
OutputStream& os,
variant const& geometry,
std::string const& style,
double size
)
{
boost::apply_visitor(visitor(os, style, size), geometry);
}
};
} // namespace dispatch
#endif // DOXYGEN_NO_DISPATCH
/*!
\brief Generic geometry template manipulator class, takes corresponding output class from traits class
\ingroup svg
\details Stream manipulator, streams geometry classes as SVG (Scalable Vector Graphics)
*/
template
class svg_manipulator
{
public:
inline svg_manipulator(Geometry const& g, std::string const& style, double size)
: m_geometry(g)
, m_style(style)
, m_size(size)
{}
template
inline friend std::basic_ostream& operator<<(
std::basic_ostream& os, svg_manipulator const& m)
{
dispatch::devarianted_svg::apply(os,
m.m_geometry,
m.m_style,
m.m_size);
os.flush();
return os;
}
private:
Geometry const& m_geometry;
std::string const& m_style;
double m_size;
};
/*!
\brief Manipulator to stream geometries as SVG
\tparam Geometry \tparam_geometry
\param geometry \param_geometry
\param style String containing verbatim SVG style information
\param size Optional size (used for SVG points) in SVG pixels. For linestrings,
specify linewidth in the SVG style information
\ingroup svg
*/
template
inline svg_manipulator svg(Geometry const& geometry,
std::string const& style, double size = -1.0)
{
concepts::check();
return svg_manipulator(geometry, style, size);
}
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_IO_SVG_WRITE_HPP