/usr/include/osmium/javascript/wrapper/geometry.hpp is in libosmium-dev 0.0~20140910-9a069af-1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#define OSMIUM_JAVASCRIPT_WRAPPER_GEOMETRY_HPP
/*
Copyright 2012 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 <sstream>
#include <v8.h>
#include <geos/geom/Geometry.h>
#include <geos/geom/LineString.h>
#include <geos/geom/Polygon.h>
#include <osmium/javascript/unicode.hpp>
#include <osmium/javascript/template.hpp>
#include <osmium/javascript/wrapper/position.hpp>
#include <osmium/geometry/null.hpp>
#include <osmium/geometry/point.hpp>
#include <osmium/geometry/linestring.hpp>
#include <osmium/geometry/polygon.hpp>
#include <osmium/geometry/multipolygon.hpp>
namespace Osmium {
namespace Javascript {
namespace Wrapper {
struct Geometry : public Osmium::Javascript::Template {
static v8::Handle<v8::Value> to_wkt(const v8::Arguments& args, Osmium::Geometry::Geometry* geometry) {
std::ostringstream oss;
bool with_srid = false;
if (args.Length() >= 1) {
with_srid = args[0]->ToBoolean()->Value();
}
oss << geometry->as_WKT(with_srid);
return v8::String::New(oss.str().c_str());
}
static v8::Handle<v8::Value> to_wkb(const v8::Arguments& args, Osmium::Geometry::Geometry* geometry) {
std::ostringstream oss;
bool with_srid = false;
if (args.Length() >= 1) {
with_srid = args[0]->ToBoolean()->Value();
}
oss << geometry->as_WKB(with_srid);
return v8::String::New(oss.str().c_str());
}
static v8::Handle<v8::Value> to_hexwkb(const v8::Arguments& args, Osmium::Geometry::Geometry* geometry) {
std::ostringstream oss;
bool with_srid = false;
if (args.Length() >= 1) {
with_srid = args[0]->ToBoolean()->Value();
}
oss << geometry->as_HexWKB(with_srid);
return v8::String::New(oss.str().c_str());
}
Geometry() :
Osmium::Javascript::Template() {
js_template->Set("toWKT", v8::FunctionTemplate::New(function_template<Osmium::Geometry::Geometry, to_wkt>));
js_template->Set("toWKB", v8::FunctionTemplate::New(function_template<Osmium::Geometry::Geometry, to_wkb>));
js_template->Set("toHexWKB", v8::FunctionTemplate::New(function_template<Osmium::Geometry::Geometry, to_hexwkb>));
}
};
struct GeometryNull : public Osmium::Javascript::Template {
GeometryNull() :
Osmium::Javascript::Template() {
js_template->Set("toWKT", v8::FunctionTemplate::New(undefined));
js_template->Set("toWKB", v8::FunctionTemplate::New(undefined));
js_template->Set("toHexWKB", v8::FunctionTemplate::New(undefined));
js_template->Set("toArray", v8::FunctionTemplate::New(undefined));
}
};
struct GeometryPoint : public Geometry {
static v8::Handle<v8::Value> lon(Osmium::Geometry::Point* point) {
return v8::Number::New(point->lon());
}
static v8::Handle<v8::Value> lat(Osmium::Geometry::Point* point) {
return v8::Number::New(point->lat());
}
static v8::Handle<v8::Value> to_array(const v8::Arguments& /*args*/, Osmium::Geometry::Point* point) {
return OSMPosition::to_array(point->position());
}
GeometryPoint() :
Geometry() {
js_template->SetAccessor(v8::String::NewSymbol("lon"), accessor_getter<Osmium::Geometry::Point, lon>);
js_template->SetAccessor(v8::String::NewSymbol("lat"), accessor_getter<Osmium::Geometry::Point, lat>);
js_template->Set("toArray", v8::FunctionTemplate::New(function_template<Osmium::Geometry::Point, to_array>));
}
};
struct GeometryLineString : public Geometry {
static v8::Handle<v8::Value> to_array(const v8::Arguments& /*args*/, Osmium::Geometry::LineString* ls) {
v8::HandleScope scope;
v8::Local<v8::Array> linestring = v8::Array::New(ls->nodes().size());
unsigned int max = ls->nodes().size() - 1;
const Osmium::OSM::WayNodeList& wnl = ls->nodes();
if (ls->reverse()) {
for (unsigned int i=0; i <= max; ++i) {
linestring->Set(max - i, OSMPosition::to_array(wnl[i].position()));
}
} else {
for (unsigned int i=0; i <= max; ++i) {
linestring->Set(i, OSMPosition::to_array(wnl[i].position()));
}
}
return scope.Close(linestring);
}
GeometryLineString() :
Geometry() {
js_template->Set("toArray", v8::FunctionTemplate::New(function_template<Osmium::Geometry::LineString, to_array>));
}
};
struct GeometryPolygon : public Geometry {
static v8::Handle<v8::Value> to_array(const v8::Arguments& /*args*/, Osmium::Geometry::Polygon* p) {
v8::HandleScope scope;
v8::Local<v8::Array> polygon = v8::Array::New(1);
v8::Local<v8::Array> linear_ring = v8::Array::New(p->nodes().size());
polygon->Set(0, linear_ring);
unsigned int max = p->nodes().size() - 1;
const Osmium::OSM::WayNodeList& wnl = p->nodes();
if (p->reverse()) {
for (unsigned int i=0; i <= max; ++i) {
linear_ring->Set(max - i, OSMPosition::to_array(wnl[i].position()));
}
} else {
for (unsigned int i=0; i <= max; ++i) {
linear_ring->Set(i, OSMPosition::to_array(wnl[i].position()));
}
}
return scope.Close(polygon);
}
GeometryPolygon() :
Geometry() {
js_template->Set("toArray", v8::FunctionTemplate::New(function_template<Osmium::Geometry::Polygon, to_array>));
}
};
struct GeometryMultiPolygon : public Geometry {
static v8::Handle<v8::Array> ring_as_array(const geos::geom::LineString* ring) {
v8::HandleScope scope;
const geos::geom::CoordinateSequence* cs = ring->getCoordinatesRO();
v8::Local<v8::Array> ring_array = v8::Array::New(cs->getSize());
for (size_t i = 0; i < cs->getSize(); ++i) {
v8::Local<v8::Array> coord = v8::Array::New(2);
coord->Set(0, v8::Number::New(cs->getX(i)));
coord->Set(1, v8::Number::New(cs->getY(i)));
ring_array->Set(i, coord);
}
return scope.Close(ring_array);
}
static v8::Handle<v8::Value> to_array(const v8::Arguments& /*args*/, Osmium::Geometry::MultiPolygon* multipolygon) {
v8::HandleScope scope;
const geos::geom::MultiPolygon* geos_multipolygon = multipolygon->borrow_geos_geometry();
v8::Local<v8::Array> multipolygon_array = v8::Array::New(geos_multipolygon->getNumGeometries());
for (size_t i=0; i < geos_multipolygon->getNumGeometries(); ++i) {
const geos::geom::Polygon* polygon = dynamic_cast<const geos::geom::Polygon*>(geos_multipolygon->getGeometryN(i));
v8::Local<v8::Array> polygon_array = v8::Array::New(polygon->getNumInteriorRing());
multipolygon_array->Set(i, polygon_array);
polygon_array->Set(0, ring_as_array(polygon->getExteriorRing()));
for (size_t j=0; j < polygon->getNumInteriorRing(); ++j) {
polygon_array->Set(j+1, ring_as_array(polygon->getInteriorRingN(j)));
}
}
return scope.Close(multipolygon_array);
}
GeometryMultiPolygon() :
Geometry() {
js_template->Set("toArray", v8::FunctionTemplate::New(function_template<Osmium::Geometry::MultiPolygon, to_array>));
}
};
} // namespace Wrapper
} // namespace Javascript
} // namespace Osmium
#endif // OSMIUM_JAVASCRIPT_WRAPPER_GEOMETRY_HPP
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