NodeTransitPtr OctreeVisualization::createNodeDistanceLOD(OctreePtr,
const Octree::OTNodePtr node,
Material* GeoMaterial,
const Node* BaseGeo,
Real32 Range
)
{
NodeRecPtr box = deepCloneTree(BaseGeo);
dynamic_cast<Geometry*>(box->getCore())->setMaterial(GeoMaterial);
//DistanceLOD node
DistanceLODRecPtr LOD = DistanceLOD::create();
LOD->editMFRange()->push_back(10.0);
NodeRecPtr LODNode = makeNodeFor(LOD);
LODNode->addChild(box);
LODNode->addChild(makeCoredNode<Group>());
Matrix m;
TransformRecPtr box_trans;
NodeRecPtr trans_node = makeCoredNode<Transform>(&box_trans);
Pnt3f Center;
node->getVolume().getCenter(Center);
m.setTranslate(Center.x(),
Center.y(),
Center.z());
const Real32 Offset(0.0f);
Vec3f Size;
node->getVolume().getSize(Size);
m.setScale(Size.x()-(Size.x()*Offset),
Size.y()-(Size.y()*Offset),
Size.z()-(Size.z()*Offset));
box_trans->setMatrix(m);
trans_node->addChild(LODNode);
return NodeTransitPtr(trans_node);
}
Action::ResultE LODSetupGraphOp::traverseEnter(Node * const node)
{
if(node->getCore()->getType().isDerivedFrom(DistanceLOD::getClassType()))
{
return Action::Skip;
}
// clear out the old sets
_mSets.clear();
UInt32 numChildren = node->getNChildren();
// check node's children for LOD name tags.
UInt32 i = 0;
UInt32 j = 0;
for(i = 0; i < numChildren; ++i)
{
const Char8 *namePtr = OSG::getName(node->getChild(i));
if(namePtr != NULL)
{
std::string curNodeName(namePtr );
size_t nameSize (curNodeName.size());
for(j = 0; j < _mLODs.size(); ++j)
{
// we only check for the tags at the end of the strings
size_t searchLoc =
(nameSize > _mLODs[j].mTag.size()) ?
(nameSize - _mLODs[j].mTag.size()) : 0;
size_t loc = curNodeName.find(_mLODs[j].mTag, searchLoc);
if(loc != std::string::npos)
{
std::string baseName(curNodeName);
baseName.erase(loc, _mLODs[j].mTag.size());
bool createNewSet = true;
for(UInt32 k = 0; k < _mSets.size(); ++k)
{
if(baseName.compare(_mSets[k].mBaseName) == 0)
{
_mSets[k].addLODPair(_mLODs[j].mLOD,
node->getChild(i));
createNewSet = false;
break;
}
}
if(createNewSet == true)
{
LODSet newSet;
newSet.mBaseName = baseName;
newSet.addLODPair(_mLODs[j].mLOD, node->getChild(i));
_mSets.push_back(newSet);
break;
}
}
}// end for(_mLODs.size())
} //end if(namePtr != NULL)
} // end for(numChildren)
// now we add as many LODs as we can
int madeNow = 0;
if(_mSets.size() > 0)
{
for(i = 0; i < _mSets.size(); ++i)
{
if(_mSets[i].mLODPairs.size() > 1)
{
DistanceLODRecPtr TheLODCore = DistanceLOD::create();
MFReal32 *ranges = TheLODCore->editMFRange();
NodeRecPtr newLODNode = Node::create();
newLODNode->setCore(TheLODCore);
// also set the name of the node now
OSG::setName(newLODNode, _mSets[i].mBaseName + "_LODNode");
node->addChild(newLODNode);
bool centerIsSet = false;
for(j = 0; j < _mSets[i].mLODPairs.size(); ++j)
{
LODPair cur = _mSets[i].mLODPairs[j];
if((cur.first != -1 ) &&
(cur.second != NULL) &&
(getRange(cur.first) > 0.0f) )
{
ranges ->push_back(getRange(cur.first));
newLODNode->addChild (cur.second );
if(!centerIsSet)
{
Pnt3f volCenter;
cur.second->getVolume().getCenter(volCenter);
TheLODCore->setCenter(volCenter);
centerIsSet = true;
}
madeNow++;
}
}
}
}
if(madeNow > 0)
{
_totalNumMade += madeNow;
return Action::Skip;
}
}
return Action::Continue;
}
