/usr/include/osmium/osm/position.hpp is in libosmium-dev 0.0~20111213-g7f3500a-3build5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | #ifndef OSMIUM_OSM_POSITION_HPP
#define OSMIUM_OSM_POSITION_HPP
/*
Copyright 2011 Jochen Topf <jochen@topf.org> and others (see README).
This file is part of Osmium (https://github.com/joto/osmium).
Osmium is free software: you can redistribute it and/or modify it under the
terms of the GNU Lesser General Public License or (at your option) the GNU
General Public License as published by the Free Software Foundation, either
version 3 of the Licenses, or (at your option) any later version.
Osmium 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 and the GNU
General Public License for more details.
You should have received a copy of the Licenses along with Osmium. If not, see
<http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <ostream>
#include <limits>
#include <math.h>
#ifdef OSMIUM_WITH_GEOS
# include <geos/geom/Coordinate.h>
#endif
namespace Osmium {
namespace OSM {
/**
* Positions are stored in 32 bit integers for the x and y
* coordinates, respectively. This gives you an accuracy of a few
* centimeters, good enough for OSM use. (The main OSM database uses
* the same scheme.)
*/
class Position {
public:
explicit Position() : m_x(std::numeric_limits<int32_t>::max()), m_y(std::numeric_limits<int32_t>::max()) {
}
explicit Position(int32_t x, int32_t y) : m_x(x), m_y(y) {
}
explicit Position(double lon, double lat) : m_x(double_to_fix(lon)), m_y(double_to_fix(lat)) {
}
bool defined() const {
return m_x != std::numeric_limits<int32_t>::max() && m_x != std::numeric_limits<int32_t>::min();
}
int32_t x() const {
return m_x;
}
int32_t y() const {
return m_y;
}
double lon() const {
return fix_to_double(m_x);
}
double lat() const {
return fix_to_double(m_y);
}
Position& lon(double lon) {
m_x = double_to_fix(lon);
return *this;
}
Position& lat(double lat) {
m_y = double_to_fix(lat);
return *this;
}
#ifdef OSMIUM_WITH_JAVASCRIPT
v8::Handle<v8::Array> js_to_array() const {
v8::HandleScope scope;
v8::Local<v8::Array> array = v8::Array::New(2);
array->Set(0, v8::Number::New(lon()));
array->Set(1, v8::Number::New(lat()));
return scope.Close(array);
}
#endif // OSMIUM_WITH_JAVASCRIPT
friend bool operator==(const Position& p1, const Position& p2) {
return p1.m_x == p2.m_x && p1.m_y == p2.m_y;
}
friend bool operator!=(const Position& p1, const Position& p2) {
return !(p1 == p2);
}
friend std::ostream& operator<<(std::ostream& out, const Position& position) {
out << '(' << position.lon() << ',' << position.lat() << ')';
return out;
}
/// conversion to uint32_t
operator uint32_t() const {
int32_t x = 180 + m_x / precision;
int32_t y = 90 - m_y / precision;
if (x < 0) x = 0;
if (y < 0) y = 0;
if (x >= 360) x = 359;
if (y >= 180) y = 179;
return 360 * y + x;
}
#ifdef OSMIUM_WITH_GEOS
/**
* Conversion of Position to GEOS Coordinate.
*/
operator geos::geom::Coordinate() const {
geos::geom::Coordinate c(lon(), lat());
return c;
}
#endif
private:
static const int precision = 10000000;
int32_t m_x;
int32_t m_y;
static int32_t double_to_fix(double c) {
return round(c * precision);
}
static double fix_to_double(int32_t c) {
return static_cast<double>(c) / precision;
}
};
} // namespace OSM
} // namespace Osmium
#endif // OSMIUM_OSM_POSITION_HPP
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