4d60d73eca
now holds the dirty flag and enables/disables event traversal in response dirty being set/unset. This allows terrain to be automatically updated in response to Terrain scale and sample ratio changes.
120 lines
3.2 KiB
C++
120 lines
3.2 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library 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
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#include <osgTerrain/Terrain>
|
|
#include <OpenThreads/ScopedLock>
|
|
|
|
using namespace osg;
|
|
using namespace osgTerrain;
|
|
|
|
Terrain::Terrain():
|
|
_sampleRatio(1.0),
|
|
_verticalScale(1.0)
|
|
{
|
|
}
|
|
|
|
Terrain::Terrain(const Terrain& ts, const osg::CopyOp& copyop):
|
|
osg::Group(ts,copyop),
|
|
_sampleRatio(ts._sampleRatio),
|
|
_verticalScale(ts._verticalScale)
|
|
{
|
|
}
|
|
|
|
|
|
Terrain::~Terrain()
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
|
|
for(TerrainTileSet::iterator itr = _terrainTileSet.begin();
|
|
itr != _terrainTileSet.end();
|
|
++itr)
|
|
{
|
|
const_cast<TerrainTile*>(*itr)->_terrain = 0;
|
|
}
|
|
|
|
_terrainTileSet.clear();
|
|
_terrainTileMap.clear();
|
|
}
|
|
|
|
void Terrain::traverse(osg::NodeVisitor& nv)
|
|
{
|
|
Group::traverse(nv);
|
|
}
|
|
|
|
TerrainTile* Terrain::getTile(const TileID& tileID)
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
|
|
TerrainTileMap::iterator itr = _terrainTileMap.find(tileID);
|
|
if (itr != _terrainTileMap.end()) return 0;
|
|
|
|
return itr->second;
|
|
}
|
|
|
|
const TerrainTile* Terrain::getTile(const TileID& tileID) const
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
|
|
TerrainTileMap::const_iterator itr = _terrainTileMap.find(tileID);
|
|
if (itr != _terrainTileMap.end()) return 0;
|
|
|
|
return itr->second;
|
|
}
|
|
|
|
void Terrain::dirtyRegisteredTiles()
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
|
|
for(TerrainTileSet::iterator itr = _terrainTileSet.begin();
|
|
itr != _terrainTileSet.end();
|
|
++itr)
|
|
{
|
|
(const_cast<TerrainTile*>(*itr))->setDirty(true);
|
|
}
|
|
}
|
|
|
|
static unsigned int s_maxNumTiles = 0;
|
|
void Terrain::registerTerrainTile(TerrainTile* tile)
|
|
{
|
|
if (!tile) return;
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
|
|
if (tile->getTileID().valid())
|
|
{
|
|
_terrainTileMap[tile->getTileID()] = tile;
|
|
}
|
|
|
|
_terrainTileSet.insert(tile);
|
|
|
|
if (_terrainTileSet.size() > s_maxNumTiles) s_maxNumTiles = _terrainTileSet.size();
|
|
|
|
// osg::notify(osg::NOTICE)<<"Terrain::registerTerrainTile "<<tile<<" total number of tile "<<_terrainTileSet.size()<<" max = "<<s_maxNumTiles<<std::endl;
|
|
}
|
|
|
|
void Terrain::unregisterTerrainTile(TerrainTile* tile)
|
|
{
|
|
if (!tile) return;
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
|
|
if (tile->getTileID().valid())
|
|
{
|
|
_terrainTileMap.erase(tile->getTileID());
|
|
}
|
|
|
|
_terrainTileSet.erase(tile);
|
|
|
|
// osg::notify(osg::NOTICE)<<"Terrain::unregisterTerrainTile "<<tile<<" total number of tile "<<_terrainTileSet.size()<<" max = "<<s_maxNumTiles<<std::endl;
|
|
}
|