FGFS-4.1/OpenSceneGraph
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Groundwork for adding support for polygonal tiles

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This commit is contained in:
Robert Osfield
2004-03-29 10:45:58 +00:00
parent aa52005b87
commit cad1e2a075
3 changed files with 132 additions and 44 deletions
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130
src/osgTerrain/DataSet.cpp
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@@ -1692,34 +1692,80 @@ void DataSet::DestinationTile::optimizeResolution()
}
osg::Node* DataSet::DestinationTile::createScene()
{
osg::Geode* geode = new osg::Geode;
bool imagePresent = _imagery.valid() && _imagery->_image.valid();
if (_dataSet->getGeometryType()==HEIGHT_FIELD)
{
osg::ShapeDrawable* shapeDrawable = createDrawableHeightField();
if (shapeDrawable)
{
geode->addDrawable(shapeDrawable);
if (!imagePresent)
{
shapeDrawable->setColor(_dataSet->getDefaultColor());
}
}
}
else
{
osg::Geometry* geometry = createDrawablePolygonal();
if (geometry)
{
geode->addDrawable(geometry);
if (!imagePresent)
{
osg::Vec4Array* colours = new osg::Vec4Array(1);
(*colours)[0] = _dataSet->getDefaultColor();
geometry->setColorArray(colours);
geometry->setColorBinding(osg::Geometry::BIND_OVERALL);
}
}
}
if (imagePresent)
{
std::string imageName(_name+".rgb");
_imagery->_image->setFileName(imageName.c_str());
//std::cout<<"Writing out imagery to "<<imageName<<std::endl;
//osgDB::writeImageFile(*_imagery->_image,_imagery->_image->getFileName().c_str());
osg::StateSet* stateset = geode->getOrCreateStateSet();
osg::Texture2D* texture = new osg::Texture2D(_imagery->_image.get());
texture->setWrap(osg::Texture::WRAP_S,osg::Texture::CLAMP);
texture->setWrap(osg::Texture::WRAP_T,osg::Texture::CLAMP);
stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
}
return geode;
}
osg::ShapeDrawable* DataSet::DestinationTile::createDrawableHeightField()
{
bool heightFieldPresent = _terrain.valid() && _terrain->_heightField.valid();
bool imagePresent = _imagery.valid() && _imagery->_image.valid();
if (!heightFieldPresent && !imagePresent)
{
std::cout<<"**** No terrain or imagery to build tile from, will need to create some fallback ****"<<std::endl;
return 0;
}
osg::Geode* geode = 0;
osg::ShapeDrawable* shapeDrawable = 0;
if (heightFieldPresent)
{
std::cout<<"--- Have terrain build tile ----"<<std::endl;
osg::HeightField* hf = _terrain->_heightField.get();
geode = new osg::Geode;
osg::ShapeDrawable* shapeDrawable = new osg::ShapeDrawable(hf);
hf->setSkirtHeight(shapeDrawable->getBound().radius()*0.01f);
shapeDrawable = new osg::ShapeDrawable(hf);
geode->addDrawable(shapeDrawable);
hf->setSkirtHeight(geode->getBound().radius()*0.01f);
return shapeDrawable;
}
else
{
@@ -1731,35 +1777,39 @@ osg::Node* DataSet::DestinationTile::createScene()
hf->setXInterval(_extents.xMax()-_extents.xMin());
hf->setYInterval(_extents.yMax()-_extents.yMin());
geode = new osg::Geode;
osg::ShapeDrawable* shapeDrawable = new osg::ShapeDrawable(hf);
geode->addDrawable(shapeDrawable);
hf->setSkirtHeight(geode->getBound().radius()*0.01f);
}
if (imagePresent)
{
std::string imageName(_name+".rgb");
std::cout<<"Writing out imagery to "<<imageName<<std::endl;
_imagery->_image->setFileName(imageName.c_str());
//osgDB::writeImageFile(*_imagery->_image,_imagery->_image->getFileName().c_str());
osg::StateSet* stateset = geode->getOrCreateStateSet();
osg::Texture2D* texture = new osg::Texture2D(_imagery->_image.get());
texture->setWrap(osg::Texture::WRAP_S,osg::Texture::CLAMP);
texture->setWrap(osg::Texture::WRAP_T,osg::Texture::CLAMP);
stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
}
else if (shapeDrawable)
{
shapeDrawable->setColor(_dataSet->getDefaultColor());
}
hf->setSkirtHeight(shapeDrawable->getBound().radius()*0.01f);
return geode;
return shapeDrawable;
}
}
osg::Geometry* DataSet::DestinationTile::createDrawablePolygonal()
{
std::cout<<"--------- DataSet::DestinationTile::createSceneGeometry() ------------- "<<std::endl;
bool heightFieldPresent = _terrain.valid() && _terrain->_heightField.valid();
if (!heightFieldPresent)
{
std::cout<<"--- Have terrain build tile ----"<<std::endl;
osg::HeightField* grid = _terrain->_heightField.get();
osg::Geometry* geometry = new osg::Geometry;
return geometry;
}
else
{
std::cout<<"**** No terrain to build tile from use flat terrain fallback ****"<<std::endl;
return 0;
}
}
void DataSet::DestinationTile::readFrom(CompositeSource* sourceGraph)
@@ -2147,7 +2197,7 @@ DataSet::DataSet()
_defaultColor.set(0.5f,0.5f,1.0f,1.0f);
_databaseType = PagedLOD_DATABASE;
_geometryType = POLYGONAL;
_geometryType = HEIGHT_FIELD;
_textureType = COMPRESSED_TEXTURE;
}