128 lines
3.6 KiB
C++
128 lines
3.6 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 <osg/ProxyNode>
|
|
#include <osg/CullStack>
|
|
#include <osg/Notify>
|
|
|
|
using namespace osg;
|
|
|
|
ProxyNode::ProxyNode() :
|
|
_loadingExtReference(LOAD_IMMEDIATELY),
|
|
_centerMode(USER_DEFINED_CENTER),
|
|
_radius(-1)
|
|
{
|
|
}
|
|
|
|
ProxyNode::ProxyNode(const ProxyNode& proxynode,const CopyOp& copyop):
|
|
Group(proxynode,copyop),
|
|
_filenameList(proxynode._filenameList),
|
|
_databaseOptions(proxynode._databaseOptions),
|
|
_databasePath(proxynode._databasePath),
|
|
_loadingExtReference(proxynode._loadingExtReference),
|
|
_centerMode(proxynode._centerMode),
|
|
_userDefinedCenter(proxynode._userDefinedCenter),
|
|
_radius(proxynode._radius)
|
|
{
|
|
}
|
|
|
|
void ProxyNode::setDatabasePath(const std::string& path)
|
|
{
|
|
_databasePath = path;
|
|
if (!_databasePath.empty())
|
|
{
|
|
char& lastCharacter = _databasePath[_databasePath.size()-1];
|
|
const char unixSlash = '/';
|
|
const char winSlash = '\\';
|
|
|
|
if (lastCharacter==winSlash)
|
|
{
|
|
lastCharacter = unixSlash;
|
|
}
|
|
else if (lastCharacter!=unixSlash)
|
|
{
|
|
_databasePath += unixSlash;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ProxyNode::traverse(NodeVisitor& nv)
|
|
{
|
|
if (nv.getDatabaseRequestHandler() && _filenameList.size()>_children.size() &&
|
|
_loadingExtReference!=NO_AUTOMATIC_LOADING)
|
|
{
|
|
for(unsigned int i=_children.size(); i<_filenameList.size(); ++i)
|
|
{
|
|
nv.getDatabaseRequestHandler()->requestNodeFile(_databasePath+_filenameList[i].first, nv.getNodePath(), 1.0f, nv.getFrameStamp(), _filenameList[i].second, _databaseOptions.get());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Group::traverse(nv);
|
|
}
|
|
}
|
|
|
|
void ProxyNode::expandFileNameListTo(unsigned int pos)
|
|
{
|
|
if (pos>=_filenameList.size()) _filenameList.resize(pos+1);
|
|
}
|
|
|
|
bool ProxyNode::addChild( Node *child )
|
|
{
|
|
if (Group::addChild(child))
|
|
{
|
|
expandFileNameListTo(_children.size()-1);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool ProxyNode::addChild(Node *child, const std::string& filename)
|
|
{
|
|
if (Group::addChild(child))
|
|
{
|
|
setFileName(_children.size()-1,filename);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool ProxyNode::removeChildren(unsigned int pos,unsigned int numChildrenToRemove)
|
|
{
|
|
if (pos<_filenameList.size()) _filenameList.erase(_filenameList.begin()+pos, osg::minimum(_filenameList.begin()+(pos+numChildrenToRemove), _filenameList.end()) );
|
|
|
|
return Group::removeChildren(pos,numChildrenToRemove);
|
|
}
|
|
|
|
BoundingSphere ProxyNode::computeBound() const
|
|
{
|
|
if (_centerMode==USER_DEFINED_CENTER && _radius>=0.0f)
|
|
{
|
|
return BoundingSphere(_userDefinedCenter,_radius);
|
|
}
|
|
else if (_centerMode==UNION_OF_BOUNDING_SPHERE_AND_USER_DEFINED && _radius>=0.0f)
|
|
{
|
|
BoundingSphere bs = BoundingSphere(_userDefinedCenter,_radius);
|
|
bs.expandBy(Group::computeBound());
|
|
//alternative (used in TxpPagedLOD)
|
|
// bs.expandRadiusBy(Group::computeBound());
|
|
return bs;
|
|
}
|
|
else
|
|
{
|
|
return Group::computeBound();
|
|
}
|
|
}
|
|
|
|
|