/usr/include/mongo/geo/linestring.h is in libmongoclient-dev 1.1.2-6ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/** @file */
#pragma once
#include <boost/scoped_ptr.hpp>
#include <vector>
#include "mongo/client/export_macros.h"
#include "mongo/db/jsobj.h"
#include "mongo/geo/boundingbox.h"
#include "mongo/geo/constants.h"
#include "mongo/geo/geometry.h"
#include "mongo/geo/point.h"
namespace mongo {
namespace geo {
template <typename TCoordinates>
class LineString : public Geometry<TCoordinates> {
public:
/**
* LineString constructor
*
* @param bson A BSON representation of the line string.
*/
explicit LineString(const BSONObj& bson);
/**
* LineString constructor
*
* @param points The points that make up the line string.
*/
explicit LineString(const std::vector<Point<TCoordinates> >& points);
LineString(const LineString<TCoordinates>& other);
LineString& operator=(LineString<TCoordinates> other);
/**
* Obtain a BSON representation of the line string.
*
* @return a BSON representation of the line string.
*/
virtual BSONObj toBSON() const {
return _bson;
}
/**
* Obtain the bounding box surrounding this line string.
*
* @return A bounding box surrounding this line string.
*/
virtual BoundingBox<TCoordinates> getBoundingBox() const;
/**
* Get the geometry type of this object.
*
* @return GeoObjType_LineString
*/
virtual GeoObjType getType() const {
return GeoObjType_LineString;
}
/**
* Obtain the points that make up this LineString.
*
* @return a vector of points making up this LineString.
*/
std::vector<Point<TCoordinates> > getPoints() const {
return _points;
}
private:
static BSONObj createBSON(const std::vector<Point<TCoordinates> >& points);
BSONObj _bson;
std::vector<Point<TCoordinates> > _points;
mutable boost::scoped_ptr<BoundingBox<TCoordinates> > _boundingBox;
/**
* Compute the bounding box arround this LineString. Caller has ownership of the
* returned pointer.
*
* @return a pointer to the bounding box of this LineString.
*/
BoundingBox<TCoordinates>* computeBoundingBox() const;
};
template <typename TCoordinates>
LineString<TCoordinates>::LineString(const BSONObj& bson)
: _bson(GeoObj<TCoordinates>::validateType(bson, kLineStringTypeStr)),
_points(Geometry<TCoordinates>::parseAllPoints(bson)),
_boundingBox(Geometry<TCoordinates>::parseBoundingBox(bson)) {}
template <typename TCoordinates>
LineString<TCoordinates>::LineString(const std::vector<Point<TCoordinates> >& points)
: _bson(createBSON(points)), _points(points) {}
template <typename TCoordinates>
LineString<TCoordinates>::LineString(const LineString<TCoordinates>& other)
: _bson(other._bson), _points(other._points) {
// TODO: consider refactoring this to not make deep copies,
// and instead use a boost::shared_ptr to share the same bounding
// box across all copies of a Point. This would also let the
// compiler generate copy and assignment constructors, so we can drop
// them from the implementation.
if (other._boundingBox)
_boundingBox.reset(new BoundingBox<TCoordinates>(*other._boundingBox));
}
template <typename TCoordinates>
LineString<TCoordinates>& LineString<TCoordinates>::operator=(LineString<TCoordinates> other) {
using std::swap;
swap(_bson, other._bson);
swap(_points, other._points);
swap(_boundingBox, other._boundingBox);
return *this;
}
template <typename TCoordinates>
BoundingBox<TCoordinates> LineString<TCoordinates>::getBoundingBox() const {
if (!_boundingBox)
_boundingBox.reset(computeBoundingBox());
return *_boundingBox.get();
}
template <typename TCoordinates>
BSONObj LineString<TCoordinates>::createBSON(const std::vector<Point<TCoordinates> >& points) {
BSONArrayBuilder bab;
for (size_t i = 0; i < points.size(); ++i)
bab.append(points[i].toBSON()[kCoordsFieldName]);
BSONObjBuilder bob;
return bob.append(kTypeFieldName, kLineStringTypeStr).append(kCoordsFieldName, bab.arr()).obj();
}
template <typename TCoordinates>
BoundingBox<TCoordinates>* LineString<TCoordinates>::computeBoundingBox() const {
return Geometry<TCoordinates>::computeBoundingBox(_points);
}
} // namespace geo
} // namespace mongo
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