Introduction:
This tool is a plugin of Draw.io desktop application.
It can automatically generate ACTN topology JSON data from graph.

Installation and initialization:
1) Extract the draw.io.7z file
2) Run draw.io.exe in folder draw.io
3) Click menu Extras->Plugins… 
4) Import the plugin file named "ongen.js" 
5) Click menu Extras->Load Default Settings

Design ACTN multi-domain OTN topology and generate JSON data.
1) Add network, node, port or link via drag-and-drop or copy-and-paste.
2) Collapse or expand containers by shortcut "CTRL+J" and "CTRL+K"
3) Assign the node id of all nodes automatically by clicking the menu Extras->'Auto-assign Node Id'
4) Export to ACTN JSON data by clicking the menu Extras->'Export as ACTN JSON'.