createExpanded static method
Implementation
static NodeNode createExpanded(NodeNode? node, Envelope addEnv) {
Envelope expandEnv = Envelope.fromEnvelope(addEnv);
if (node != null) expandEnv.expandToIncludeEnvelope(node.env!);
NodeNode largerNode = createNode(expandEnv);
if (node != null) largerNode.insertNode(node);
return largerNode;
}