/usr/include/osgEarth/MetaTile is in libosgearth-dev 2.9.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2012 Pelican Mapping
* http://osgearth.org
*
* osgEarth 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 of the License, or
* (at your option) any later version.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#ifndef OSGEARTH_METATILE_H
#define OSGEARTH_METATILE_H
#include <osgEarth/Common>
#include <osgEarth/ImageUtils>
#include <osgEarth/GeoData>
#include <osgEarth/TileKey>
#include <osg/Image>
namespace osgEarth
{
class ImageLayer;
/**
* Metadata groups a collection of adjacent data tiles
* together to facilitate operations that overlap multiple tiles.
*/
class OSGEARTH_EXPORT MetaImage
{
public:
//! Construct a new Metatiled image
MetaImage() { }
//! Sets the data elevation at location (x,y), where (0,0) is the center.
bool setImage(int x, int y, osg::Image* image, const osg::Matrix& scaleBias);
//! Gets the image at the neighbor location (x,y).
osg::Image* getImage(int x, int y) const;
//! Gets the positioning matrix for neightbor location (x,y).
const osg::Matrix& getScaleBias(int x, int y) const;
//! Reads the data from parametric location (u,v), where [u,v] in [-1, +2].
//! Returns true upon success with the value in [output];
//! false if there is no tile at the read location.
bool read(double u, double v, osg::Vec4& output) const;
void dump() const;
private:
//virtual ~MetaImage() { }
struct Tile {
Tile();
bool _valid;
osg::ref_ptr<osg::Image> _imageRef;
ImageUtils::PixelReader _read;
osg::Matrix _scaleBias;
};
Tile _tiles[3][3]; // col, row
};
} // namespace osgEarth
#endif // OSGEARTH_METATILE_H
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