Drag the clipping to pan the map.
 
Click a circle on the left pane to see details in the right pane.  
 
 
 
 
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DataString or Map are now ready.
Create new nodes from the splitted string, and then trigger the caller to merge these new nodes or the new map with the existing or empty map

simple method to determine if it is valid zip or xml: just try it and ignore errors if not

in particular see whether it is a ready map in some xml format.

in 3 different dataFlavors

canImport and importData are called by drop from GraphPanel and CompositionWindow, readClipboard is called from Paste operations in PresentationService and CompositionWindow.

topics and assoc(iation)s are different words for nodes and edges, from older versions, and still useful to avoid confusion with XML nodes.

(GraphPanelControler)

(TransferSupport, String)

(TransferSupport, String)

()

(Transferable)

(InputStream)

()

()

()

(InputStream)

(String)

(Element)

(Element)

()

(Node, String, String)

(String)

() {...}

()

()

()

(Hashtable)

(CompositionWindow)

(boolean)

(String, int)

()

()

()

()

()

()

()

()