Accessing graphs and selections

The SDApplication class contains some helpful methods that let you access the currently active graph, and the current selection within it.

import sd



## Get the application and UI manager object.

ctx = sd.getContext()

app = ctx.getSDApplication()

uiMgr = app.getQtForPythonUIMgr()



## Get the current graph.

g = uiMgr.getCurrentGraph()

print("The current graph is %s" % g)



## Get the currently selected nodes.

selection = uiMgr.getCurrentGraphSelectedNodes()

for node in selection:

 print("Node %s" % node)

A graph displayed in a specific Graph view can be accessed using a graphViewID.

This method is useful when creating custom graph view toolbars. The Creating toolbars in Graph views sample in the Creating user interface elements chapter provides further details.