Bug fixed for export graph. Improve getNodeType() for literal node in XDI library.
Add Tree layout. Refactor layouts with basic prototype inheritance
Refine layout class inheritance with constructor functions
Add layout menu item. Add simple transition between layouts
Improve Arrow display for tree layout. Stable node position between layout transition
Improve label position for tree layout
Refine node label position
Bug fix for literal nodes with same value.
use full name of node for hover and export PNG. Refine fixed node display
Bug fix for export graph
Refine add statement mechanism. Bug fixed for link two nodes
Refine export graph mechanism. change node.name to node.fullname
Toggle the panels' visibility
Add panel to set Force layout parameters
Allow hide/show instruction. Refine parameter panel wording
Dynamic generate layout settings. Add settings for Tree layout
Add transition to Tree Layout
Add option to change node size
Adjust root position when switching layout. Remove not used functions
Adjust arrow position for Tree layout