Method clearGraph

source/MaterialXGraphEditor/Graph.cpp:2871–2890

}

void Graph::clearGraph()
{
    _graphDoc = mx::createDocument();
    _graphDoc->setDataLibrary(_stdLib);

    _state = GraphState();
    _state.graphElem = _graphDoc;
    _parentStates.clear();

    if (_currUiNode != nullptr)
    {
        ed::DeselectNode(_currUiNode->getId());
        _currUiNode = nullptr;
    }
    _prevUiNode = nullptr;
    _currRenderNode = nullptr;

    _renderer->setDocument(_graphDoc);
    _renderer->updateMaterials(nullptr);
}

void Graph::initializeGraph()
{