addNodeData method
When you want to add a node or group to the diagram, call this method with a new data object. This will add that data to the #nodeDataArray and notify all listeners that a new node data object has been inserted into the collection.
To remove a node from the diagram, you can remove its data object by calling #removeNodeData.
To add or remove an object or value from an item array, call #insertArrayItem or #removeArrayItem. @param {Object} nodedata a JavaScript object represented by a node, group, or non-link.
Implementation
void addNodeData(_i2.Object nodedata) {
_i4.callMethod(
this,
'addNodeData',
[nodedata],
);
}