Hi Brad,
A solution for serialziers to call static functions at the end of
reading/writing is to use a user serializer. The
serialziers/osgManipulator/Draggers.cpp uses a DefaultGeometry serializer to
run setupDefaultGeometry() once the reading process is finished, and this
can also be applied to load the TerrainTileCallback.
I've attached the modified serializer/osgTerrain/TerrainTile.cpp for tracing
and solving current problem. But I'm a little busy today and have no time to
compile OSG and VPB myself in time. Could you please test to see if it works
and submit it to osg-submissions?
Thanks for improving the serializers and making it stronger all the time. :)
Wang Rui
2010/6/25 Christiansen, Brad <[email protected]>
> Hi,
>
>
>
> Thanks Wang Rui. I am also on GMT +8 (Perth Australia) so yes, it is a
> little late : )
>
>
>
> I am still investigating the issue but it seems the previous problem
> yourself and Robert fixed in relation to the reading of .source file has
> re-appeared. I will post details if I can confirm the issue as well as
> having a look at the changes you made to solve the problem before.
>
>
>
> Cheers,
>
>
>
> Brad
>
>
>
#include <osgTerrain/TerrainTile>
#include <osgDB/ObjectWrapper>
#include <osgDB/InputStream>
#include <osgDB/OutputStream>
// _tileID
static bool checkTileID( const osgTerrain::TerrainTile& tile )
{
return tile.getTileID().valid();
}
static bool readTileID( osgDB::InputStream& is, osgTerrain::TerrainTile& tile )
{
osgTerrain::TileID id;
is >> id.level >> id.x >> id.y;
tile.setTileID( id );
return true;
}
static bool writeTileID( osgDB::OutputStream& os, const
osgTerrain::TerrainTile& tile )
{
const osgTerrain::TileID& id = tile.getTileID();
os << id.level << id.x << id.y << std::endl;
return true;
}
// _colorLayers
static bool checkColorLayers( const osgTerrain::TerrainTile& tile )
{
return tile.getNumColorLayers()>0;
}
static bool readColorLayers( osgDB::InputStream& is, osgTerrain::TerrainTile&
tile )
{
unsigned int numValidLayers = 0; is >> numValidLayers >>
osgDB::BEGIN_BRACKET;
for ( unsigned int i=0; i<numValidLayers; ++i )
{
unsigned int layerNum=0; is >> osgDB::PROPERTY("Layer") >> layerNum;
osgTerrain::Layer* layer = dynamic_cast<osgTerrain::Layer*>(
is.readObject() );
if ( layer ) tile.setColorLayer( layerNum, layer );
}
is >> osgDB::END_BRACKET;
return true;
}
static bool writeColorLayers( osgDB::OutputStream& os, const
osgTerrain::TerrainTile& tile )
{
unsigned int numValidLayers = 0;
for ( unsigned int i=0; i<tile.getNumColorLayers(); ++i )
{
if (tile.getColorLayer(i)) ++numValidLayers;
}
os << numValidLayers << osgDB::BEGIN_BRACKET << std::endl;
for ( unsigned int i=0; i<tile.getNumColorLayers(); ++i )
{
if (tile.getColorLayer(i)) os << osgDB::PROPERTY("Layer") << i <<
tile.getColorLayer(i);
}
os << osgDB::END_BRACKET << std::endl;
return true;
}
// TileLoadedCallback
static bool checkTileLoadedCallback( const osgTerrain::TerrainTile& tile )
{ return true; }
static bool readTileLoadedCallback( osgDB::InputStream& is,
osgTerrain::TerrainTile& tile )
{
if ( osgTerrain::TerrainTile::getTileLoadedCallback().valid() )
osgTerrain::TerrainTile::getTileLoadedCallback()->loaded( &terrainTile,
is.getOptions() );
return true;
}
static bool writeTileLoadedCallback( osgDB::OutputStream& os, const
osgTerrain::TerrainTile& tile )
{ return true; }
REGISTER_OBJECT_WRAPPER( osgTerrain_TerrainTile,
new osgTerrain::TerrainTile,
osgTerrain::TerrainTile,
"osg::Object osg::Node osg::Group
osgTerrain::TerrainTile" )
{
ADD_USER_SERIALIZER( TileID ); // _tileID
ADD_OBJECT_SERIALIZER( TerrainTechnique, osgTerrain::TerrainTechnique, NULL
); // _terrainTechnique
ADD_OBJECT_SERIALIZER( Locator, osgTerrain::Locator, NULL ); // _locator
ADD_OBJECT_SERIALIZER( ElevationLayer, osgTerrain::Layer, NULL ); //
_elevationLayer
ADD_USER_SERIALIZER( ColorLayers ); // _colorLayers
ADD_BOOL_SERIALIZER( RequiresNormals, true ); // _requiresNormals
ADD_BOOL_SERIALIZER( TreatBoundariesToValidDataAsDefaultValue, false ); //
_treatBoundariesToValidDataAsDefaultValue
BEGIN_ENUM_SERIALIZER( BlendingPolicy, INHERIT );
ADD_ENUM_VALUE( INHERIT );
ADD_ENUM_VALUE( DO_NOT_SET_BLENDING );
ADD_ENUM_VALUE( ENABLE_BLENDING );
ADD_ENUM_VALUE( ENABLE_BLENDING_WHEN_ALPHA_PRESENT );
END_ENUM_SERIALIZER(); // BlendingPolicy
ADD_USER_SERIALIZER( TileLoadedCallback );
}
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