/usr/include/osgEarthDrivers/engine_mp/TileModel is in libosgearth-dev 2.7.0+dfsg-2+b3.
This file is owned by root:root, with mode 0o644.
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/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2015 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_DRIVERS_MP_TERRAIN_ENGINE_TILE_MODEL
#define OSGEARTH_DRIVERS_MP_TERRAIN_ENGINE_TILE_MODEL 1
#include "Common"
#include <osgEarth/Common>
#include <osgEarth/Map>
#include <osgEarth/ImageLayer>
#include <osgEarth/TileKey>
#include <osgEarth/Locators>
#include <osgEarth/HeightFieldUtils>
#include <osgEarth/MapInfo>
#include <osgTerrain/Locator>
#include <osgTerrain/Layer>
#include <osg/Image>
#include <osg/StateSet>
#include <osg/Texture2D>
#include <osg/State>
#include <osg/NodeVisitor>
#include <map>
namespace osgEarth { namespace Drivers { namespace MPTerrainEngine
{
using namespace osgEarth;
class TileModel : public osg::Referenced
{
public:
void resizeGLObjectBuffers(unsigned maxSize);
void releaseGLObjects(osg::State* state) const;
public:
// do not change the order of these.
enum Neighbor
{
NORTHWEST = 0,
NORTH = 1,
NORTHEAST = 2,
WEST = 3,
EAST = 4,
SOUTHWEST = 5,
SOUTH = 6,
SOUTHEAST = 7
};
class ElevationData
{
public:
ElevationData() : _fallbackData(true) { }
ElevationData(const ElevationData& rhs);
virtual ~ElevationData() { }
ElevationData(
osg::HeightField* hf,
GeoLocator* locator,
bool fallbackData);
osg::HeightField* getHeightField() const { return _hf.get(); }
GeoLocator* getLocator() const { return _locator.get(); }
bool isFallbackData() const { return _fallbackData; }
// get a height value using a normalized coord and a locator.
bool getHeight( const osg::Vec3d& ndc, const GeoLocator* ndcLocator, float& output, ElevationInterpolation interp ) const;
// get a normal vector (in woord space)
bool getNormal( const osg::Vec3d& ndc, const GeoLocator* ndcLocator, osg::Vec3& output, ElevationInterpolation interp ) const;
osg::HeightField* getNeighbor(int xoffset, int yoffset) const
{
return _neighbors.getNeighbor(xoffset, yoffset);
}
void setNeighbor(int xoffset, int yoffset, osg::HeightField* hf )
{
_neighbors.setNeighbor(xoffset, yoffset, hf);
}
const HeightFieldNeighborhood& getNeighborhood() const
{
return _neighbors;
}
void setParent(osg::HeightField* hf)
{
_parent = hf;
}
osg::HeightField* getParent() const
{
return _parent.get();
}
private:
osg::ref_ptr<osg::HeightField> _hf;
osg::ref_ptr<GeoLocator> _locator;
bool _fallbackData;
osg::ref_ptr<osg::HeightField> _parent;
HeightFieldNeighborhood _neighbors;
};
class NormalData
{
public:
NormalData() : _fallbackData(true) { }
NormalData(const NormalData& rhs);
virtual ~NormalData() { }
NormalData(
osg::HeightField* hf,
GeoLocator* locator,
bool fallbackData);
osg::HeightField* getHeightField() const { return _hf.get(); }
GeoLocator* getLocator() const { return _locator.get(); }
bool isFallbackData() const { return _fallbackData; }
void setNeighbor(int xoffset, int yoffset, osg::HeightField* hf )
{
_neighbors.setNeighbor(xoffset, yoffset, hf);
}
void setParent(osg::HeightField* hf)
{
_parent = hf;
}
osg::HeightField* getParent() const
{
return _parent.get();
}
const HeightFieldNeighborhood& getNeighborhood() const
{
return _neighbors;
}
public:
osg::ref_ptr<osg::HeightField> _hf;
osg::ref_ptr<GeoLocator> _locator;
bool _fallbackData;
osg::ref_ptr<osg::HeightField> _parent;
HeightFieldNeighborhood _neighbors;
};
class ColorData
{
public:
ColorData() : _fallbackData(true) { }
/** Copy ctor - shallow */
ColorData(const ColorData& rhs);
/** dtor */
virtual ~ColorData() { }
ColorData(
const osgEarth::ImageLayer* imageLayer,
unsigned order,
osg::Image* image,
GeoLocator* locator,
bool fallbackData =false );
void resizeGLObjectBuffers(unsigned maxSize);
void releaseGLObjects(osg::State* state) const;
osgEarth::UID getUID() const {
return _layer->getUID();
}
unsigned getOrder() const {
return _order;
}
const GeoLocator* getLocator() const {
return _locator.get();
}
osg::Texture* getTexture() const {
return _texture.get();
}
const osgEarth::ImageLayer* getMapLayer() const {
return _layer.get(); }
bool isFallbackData() const {
return _fallbackData;
}
void setIsFallbackData(bool value) {
_fallbackData = value;
}
bool hasAlpha() const {
return _hasAlpha;
}
osg::BoundingSphere computeBound() const {
osg::BoundingSphere bs;
osg::Vec3d v;
if (getLocator()->convertLocalToModel(osg::Vec3d(0.5,0.5,0.0), v)) {
bs.center() = v;
}
if (getLocator()->convertLocalToModel(osg::Vec3d(0.0,0.0,0.0), v)) {
bs.radius() = (bs.center() - v).length();
}
return bs;
}
osg::ref_ptr<const osgEarth::ImageLayer> _layer;
osg::ref_ptr<GeoLocator> _locator;
osg::ref_ptr<osg::Texture> _texture;
bool _fallbackData;
unsigned _order;
bool _hasAlpha;
};
class ColorDataRef : public osg::Referenced
{
public:
ColorDataRef( const ColorData& layer ) : _layer(layer) { }
ColorData _layer;
};
typedef std::map<UID, ColorData> ColorDataByUID;
public:
TileModel( const osgEarth::Revision& mapModelRevision, const MapInfo& mapInfo )
: _revision(mapModelRevision), _mapInfo(mapInfo), _useParentData(false) { }
TileModel(const TileModel& rhs);
virtual ~TileModel() { }
/**
* Creates a TileModel representing a quadrant of this tile model.
* Used for upsampling.
*/
TileModel* createQuadrant(unsigned q) const;
/** Map revision used to build this model */
const Revision& getMapRevision() const { return _revision; }
/** Whether this tile contains any real data (versus being comprised entirely of fallback data) */
bool hasRealData() const;
/** Parent model pointer. */
void setParentTileModel(const TileModel* parent);
const TileModel* getParentTileModel() const { return _parentModel.get(); }
/** Whether there is a heightfield */
bool hasElevation() const { return _elevationData.getHeightField() != 0L; }
/** Whether there's a normal map */
bool hasNormalMap() const { return _normalData.getHeightField() != 0L; }
/** Whether to use parent data if it's available. */
bool useParentData() const { return _useParentData; }
MapInfo _mapInfo;
Revision _revision;
TileKey _tileKey;
osg::ref_ptr<GeoLocator> _tileLocator;
ColorDataByUID _colorData;
ElevationData _elevationData;
NormalData _normalData;
float _sampleRatio;
osg::ref_ptr<osg::Texture> _elevationTexture;
osg::ref_ptr<osg::Texture> _normalTexture;
bool _useParentData;
osg::ref_ptr<osg::StateSet> _parentStateSet;
osg::observer_ptr<const TileModel> _parentModel;
// convenience funciton to pull out a layer by its UID.
bool getColorData( UID layerUID, ColorData& out ) const {
ColorDataByUID::const_iterator i = _colorData.find( layerUID );
if ( i != _colorData.end() ) {
out = i->second;
return true;
}
return false;
}
bool requiresUpdateTraverse() const;
void updateTraverse(osg::NodeVisitor&) const;
void generateElevationTexture();
void generateNormalTexture();
};
} } } // namespace osgEarth::Drivers::MPTerrainEngine
#endif // OSGEARTH_DRIVERS_MP_TERRAIN_ENGINE_TILE_MODEL
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