[Opensg-users] a question about opensg rendering

[Kitty Tang]

Hi, I am working on a project which runtime load in a model with tree control generation.So I want to control tree view to control graph rendering, which means when i deselect a tree node, some part of model should disappear or hide in the graph. And select action is doing vice versa. I think just simply erase the node is stupid somehow and its hard to add back with original structure. Is RenderAction can control wich part of graph is rendered or not ? what is the "isVisible(Node *node)" function working for?  how can i control the visibility of those nodes in the graph? And what is the connection between Node * and NodePtr?   Thanks a lot   Kitty