302 lines
9.3 KiB
C++
302 lines
9.3 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2015 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#include <mapnik/config.hpp>
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// boost
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#include "boost_std_shared_shim.hpp"
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-parameter"
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#pragma GCC diagnostic ignored "-Wunused-local-typedef"
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#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
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#include <boost/python.hpp>
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#include <boost/python/def.hpp>
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#include <boost/python/exception_translator.hpp>
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#include <boost/python/manage_new_object.hpp>
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#include <boost/python/iterator.hpp>
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#include <boost/noncopyable.hpp>
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#include <boost/version.hpp>
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#pragma GCC diagnostic pop
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// mapnik
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#include <mapnik/geometry_impl.hpp>
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#include <mapnik/geometry_type.hpp>
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#include <mapnik/geometry_envelope.hpp>
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//#include <mapnik/wkt/wkt_factory.hpp> // from_wkt
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//#include <mapnik/util/geometry_to_wkt.hpp>
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#include <mapnik/json/geometry_parser.hpp> // from_geojson
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#include <mapnik/util/geometry_to_geojson.hpp>
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//#include <mapnik/util/geometry_to_svg.hpp>
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#include <mapnik/wkb.hpp>
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//#include <mapnik/util/geometry_to_wkb.hpp>
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// stl
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#include <stdexcept>
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namespace {
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//mapnik::geometry_type const& getitem_impl(mapnik::geometry_container & p, int key)
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//{
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// if (key >=0 && key < static_cast<int>(p.size()))
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// return p[key];
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// PyErr_SetString(PyExc_IndexError, "Index is out of range");
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// throw boost::python::error_already_set();
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//}
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//void add_wkt_impl(mapnik::geometry_container& p, std::string const& wkt)
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//{
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// if (!mapnik::from_wkt(wkt , p))
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// throw std::runtime_error("Failed to parse WKT");
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//}
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//void add_wkb_impl(mapnik::geometry_container& p, std::string const& wkb)
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//{
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// if (!mapnik::geometry_utils::from_wkb(p, wkb.c_str(), wkb.size()))
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// throw std::runtime_error("Failed to parse WKB");
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//}
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//void add_geojson_impl(mapnik::geometry_container& paths, std::string const& json)
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//{
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// if (!mapnik::json::from_geojson(json, paths))
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// throw std::runtime_error("Failed to parse geojson geometry");
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//}
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//std::shared_ptr<mapnik::geometry_container> from_wkt_impl(std::string const& wkt)
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//{
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// std::shared_ptr<mapnik::geometry_container> paths = std::make_shared<mapnik::geometry_container>();
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// if (!mapnik::from_wkt(wkt, *paths))
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// throw std::runtime_error("Failed to parse WKT");
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// return paths;
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//}
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//std::shared_ptr<mapnik::geometry_container> from_wkb_impl(std::string const& wkb)
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//{
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// std::shared_ptr<mapnik::geometry_container> paths = std::make_shared<mapnik::geometry_container>();
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// if (!mapnik::geometry_utils::from_wkb(*paths, wkb.c_str(), wkb.size()))
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// throw std::runtime_error("Failed to parse WKB");
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// return paths;
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//}
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std::shared_ptr<mapnik::new_geometry::geometry> from_geojson_impl(std::string const& json)
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{
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std::shared_ptr<mapnik::new_geometry::geometry> geom = std::make_shared<mapnik::new_geometry::geometry>();
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if (!mapnik::json::from_geojson(json, *geom))
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throw std::runtime_error("Failed to parse geojson geometry");
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return geom;
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}
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//mapnik::box2d<double> envelope_impl2(mapnik::geometry_container & p)
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//{
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// mapnik::box2d<double> b;
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// bool first = true;
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// for (mapnik::geometry_type const& geom : p)
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// {
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// auto bbox = ::mapnik::envelope(geom);
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// if (first)
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// {
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// b = bbox;
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// first=false;
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// }
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// else
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// {
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// b.expand_to_include(bbox);
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// }
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// }
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// return b;
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//}
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}
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inline std::string boost_version()
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{
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std::ostringstream s;
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s << BOOST_VERSION/100000 << "." << BOOST_VERSION/100 % 1000 << "." << BOOST_VERSION % 100;
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return s.str();
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}
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//PyObject* to_wkb(mapnik::geometry_type const& geom, mapnik::util::wkbByteOrder byte_order)
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//{
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// mapnik::util::wkb_buffer_ptr wkb = mapnik::util::to_wkb(geom,byte_order);
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// if (wkb)
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// {
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// return
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//#if PY_VERSION_HEX >= 0x03000000
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// ::PyBytes_FromStringAndSize
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//#else
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// ::PyString_FromStringAndSize
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//#endif
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// ((const char*)wkb->buffer(),wkb->size());
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// }
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// else
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// {
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// Py_RETURN_NONE;
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// }
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//}
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//PyObject* to_wkb2( mapnik::geometry_container const& p, mapnik::util::wkbByteOrder byte_order)
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//{
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// mapnik::util::wkb_buffer_ptr wkb = mapnik::util::to_wkb(p,byte_order);
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// if (wkb)
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// {
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// return
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//#if PY_VERSION_HEX >= 0x03000000
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// ::PyBytes_FromStringAndSize
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//#else
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// ::PyString_FromStringAndSize
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//#endif
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// ((const char*)wkb->buffer(),wkb->size());
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// }
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// else
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// {
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// Py_RETURN_NONE;
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// }
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//}
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//std::string to_wkt(mapnik::geometry_type const& geom)
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//{
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// std::string wkt;
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// if (!mapnik::util::to_wkt(wkt,geom))
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// {
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// throw std::runtime_error("Generate WKT failed");
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// }
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// return wkt;
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//}
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//std::string to_wkt2(mapnik::geometry_container const& geom)
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//{
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// std::string wkt;
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// if (!mapnik::util::to_wkt(wkt,geom))
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// {
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// throw std::runtime_error("Generate WKT failed");
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// }
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// return wkt;
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//}
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std::string to_geojson_impl(mapnik::new_geometry::geometry const& geom)
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{
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std::string wkt;
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if (!mapnik::util::to_geojson(wkt, geom))
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{
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throw std::runtime_error("Generate JSON failed");
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}
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return wkt;
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}
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//std::string to_geojson2(mapnik::geometry_container const& geom)
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//{
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// std::string wkt;
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// if (!mapnik::util::to_geojson(wkt,geom))
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// {
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// throw std::runtime_error("Generate JSON failed");
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// }
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// return wkt;
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//}
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//std::string to_svg(mapnik::geometry_type const& geom)
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//{
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// std::string svg;
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// if (!mapnik::util::to_svg(svg, geom))
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// {
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// throw std::runtime_error("Generate SVG failed");
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// }
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// return svg;
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//}
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mapnik::new_geometry::geometry_types geometry_type_impl(mapnik::new_geometry::geometry const& geom)
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{
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return mapnik::new_geometry::geometry_type(geom);
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}
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mapnik::box2d<double> geometry_envelope_impl(mapnik::new_geometry::geometry const& geom)
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{
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return mapnik::new_geometry::envelope(geom);
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}
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/*
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// https://github.com/mapnik/mapnik/issues/1437
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std::string to_svg2( mapnik::geometry_container const& geom)
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{
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std::string svg; // Use Python String directly ?
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bool result = mapnik::util::to_svg(svg,geom);
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if (!result)
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{
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throw std::runtime_error("Generate WKT failed");
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}
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return svg;
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}*/
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void export_geometry()
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{
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using namespace boost::python;
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enum_<mapnik::new_geometry::geometry_types>("GeometryType")
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.value("Point",mapnik::new_geometry::geometry_types::Point)
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.value("LineString",mapnik::new_geometry::geometry_types::LineString)
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.value("Polygon",mapnik::new_geometry::geometry_types::Polygon)
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.value("MultiPoint",mapnik::new_geometry::geometry_types::MultiPoint)
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.value("MultiLineString",mapnik::new_geometry::geometry_types::MultiLineString)
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.value("MultiPolygon",mapnik::new_geometry::geometry_types::MultiPolygon)
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.value("GeometryCollection",mapnik::new_geometry::geometry_types::GeometryCollection)
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;
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enum_<mapnik::wkbByteOrder>("wkbByteOrder")
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.value("XDR",mapnik::wkbXDR)
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.value("NDR",mapnik::wkbNDR)
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;
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using mapnik::new_geometry::geometry;
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class_<geometry, std::shared_ptr<geometry>, boost::noncopyable>("Geometry",no_init)
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.def("envelope",&geometry_envelope_impl)
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.def("from_geojson", from_geojson_impl)
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.staticmethod("from_geojson")
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// .def("__str__",&mapnik::geometry_type::to_string)
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.def("type",&geometry_type_impl)
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//.def("to_wkb",&to_wkb)
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//.def("to_wkt",&to_wkt)
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.def("to_geojson",&to_geojson_impl)
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//.def("to_svg",&to_svg)
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// TODO add other geometry_type methods
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;
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//class_<mapnik::geometry_container, std::shared_ptr<mapnik::geometry_container>, boost::noncopyable>("Path")
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// .def("__getitem__", getitem_impl,return_value_policy<reference_existing_object>())
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// .def("__len__", &mapnik::geometry_container::size)
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// .def("envelope",envelope_impl2)
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// .def("add_wkt",add_wkt_impl)
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// .def("add_wkb",add_wkb_impl)
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// .def("add_geojson",add_geojson_impl)
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// .def("to_wkt",&to_wkt2)
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//.def("to_svg",&to_svg2)
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// .def("to_wkb",&to_wkb2)
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// .def("from_wkt",from_wkt_impl)
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// .def("from_wkb",from_wkb_impl)
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// .def("from_geojson",from_geojson_impl)
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// .def("to_geojson",&to_geojson2)
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// .staticmethod("from_wkt")
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// .staticmethod("from_wkb")
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// .staticmethod("from_geojson")
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// ;
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}
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