109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
/*****************************************************************************
|
|
*
|
|
* This file is part of Mapnik (c++ mapping toolkit)
|
|
*
|
|
* Copyright (C) 2024 Artem Pavlenko
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#ifndef SHAPE_IO_HPP
|
|
#define SHAPE_IO_HPP
|
|
|
|
// stl
|
|
#include <memory>
|
|
#include <ios>
|
|
// mapnik
|
|
#include <mapnik/geometry/box2d.hpp>
|
|
#include <mapnik/util/noncopyable.hpp>
|
|
#include <mapnik/util/spatial_index.hpp>
|
|
// boost
|
|
#include <boost/optional.hpp>
|
|
//
|
|
#include "dbfile.hpp"
|
|
#include "shapefile.hpp"
|
|
|
|
struct shape_io : mapnik::util::noncopyable
|
|
{
|
|
public:
|
|
enum shapeType {
|
|
shape_null = 0,
|
|
shape_point = 1,
|
|
shape_polyline = 3,
|
|
shape_polygon = 5,
|
|
shape_multipoint = 8,
|
|
shape_pointz = 11,
|
|
shape_polylinez = 13,
|
|
shape_polygonz = 15,
|
|
shape_multipointz = 18,
|
|
shape_pointm = 21,
|
|
shape_polylinem = 23,
|
|
shape_polygonm = 25,
|
|
shape_multipointm = 28,
|
|
shape_multipatch = 31
|
|
};
|
|
|
|
shape_io(std::string const& shape_name, bool open_index = true);
|
|
~shape_io();
|
|
|
|
shape_file& shp();
|
|
shape_file& shx();
|
|
dbf_file& dbf();
|
|
|
|
inline boost::optional<shape_file&> index()
|
|
{
|
|
if (index_)
|
|
return boost::optional<shape_file&>(*index_);
|
|
return boost::optional<shape_file&>();
|
|
}
|
|
|
|
inline bool has_index() const
|
|
{
|
|
if (index_ && index_->is_open())
|
|
{
|
|
bool status = mapnik::util::check_spatial_index(index_->file());
|
|
index_->seek(0); // rewind
|
|
return status;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
inline int id() const { return id_; }
|
|
void move_to(std::streampos pos);
|
|
static void read_bbox(shape_file::record_type& record, mapnik::box2d<double>& bbox);
|
|
static mapnik::geometry::geometry<double> read_polyline(shape_file::record_type& record);
|
|
static mapnik::geometry::geometry<double> read_polygon(shape_file::record_type& record);
|
|
static mapnik::geometry::geometry<double> read_polyline_parts(shape_file::record_type& record,
|
|
std::vector<std::pair<int, int>> const& parts);
|
|
static mapnik::geometry::geometry<double> read_polygon_parts(shape_file::record_type& record,
|
|
std::vector<std::pair<int, int>> const& parts);
|
|
|
|
shapeType type_;
|
|
shape_file shp_;
|
|
shape_file shx_;
|
|
dbf_file dbf_;
|
|
std::unique_ptr<shape_file> index_;
|
|
int reclength_;
|
|
int id_;
|
|
box2d<double> cur_extent_;
|
|
|
|
static const std::string SHP;
|
|
static const std::string SHX;
|
|
static const std::string DBF;
|
|
static const std::string INDEX;
|
|
};
|
|
|
|
#endif // SHAPE_IO_HPP
|