FGFS-4.1/OpenSceneGraph
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Added 's' write selected nodes to "saved_selected.osgt feature.

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This commit is contained in:
Robert Osfield 2021-12-08 13:53:53 +00:00
parent ecaca716e9
commit 62dbe7b85e
1 changed files with 32 additions and 3 deletions
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35
examples/osgkeyboardmouse/osgkeyboardmouse.cpp
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@ -71,11 +71,11 @@ public:
bool _addToModel;
};
class DeleteSelectedNodesVisitor : public osg::NodeVisitor
class SelectedNodesVisitor : public osg::NodeVisitor
{
public:
DeleteSelectedNodesVisitor():
SelectedNodesVisitor():
osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN)
{
}
@ -110,6 +110,23 @@ public:
}
}
osg::ref_ptr<osg::Node> createSelectedNodeSubgraph()
{
if (_selectedNodes.empty()) return osg::ref_ptr<osg::Node>();
if (_selectedNodes.size()==1) return _selectedNodes[0];
// note code doesn't yet handle selected nodes being nested within transforms.
osg::ref_ptr<osg::Group> group;
for(SelectedNodes::iterator itr = _selectedNodes.begin();
itr != _selectedNodes.end();
++itr)
{
group->addChild(*itr);
}
return group;
}
typedef std::vector< osg::ref_ptr<osgFX::Scribe> > SelectedNodes;
SelectedNodes _selectedNodes;
@ -150,6 +167,18 @@ public:
osg::notify(osg::NOTICE)<<"Saved model to file 'saved_model.osgt'"<<std::endl;
osgDB::writeNodeFile(*(viewer->getSceneData()), "saved_model.osgt");
}
else if (ea.getKey()=='s')
{
SelectedNodesVisitor snv;
viewer->getSceneData()->accept(snv);
osg::ref_ptr<osg::Node> selected = snv.createSelectedNodeSubgraph();
if (selected)
{
osg::notify(osg::NOTICE)<<"Saved selected to file 'saved_selected.osgt'"<<std::endl;
osgDB::writeNodeFile(*(viewer->getSceneData()), "saved_selected.osgt");
}
}
else if (ea.getKey()=='p')
{
_usePolytopeIntersector = !_usePolytopeIntersector;
@ -177,7 +206,7 @@ public:
else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Delete || ea.getKey()==osgGA::GUIEventAdapter::KEY_BackSpace)
{
osg::notify(osg::NOTICE)<<"Delete"<<std::endl;
DeleteSelectedNodesVisitor dsnv;
SelectedNodesVisitor dsnv;
viewer->getSceneData()->accept(dsnv);
dsnv.pruneSelectedNodes();
}