To simplify the drawing process, we had added a button to open the DrawSvg drawing program. To accomplish that, we use the DrawSvg online cloud editor service. That works fine, but we also wanted to have a solution e.g. for offline Node-RED installations.
To support those offline setups, Joseph Liard (the author of DrawSvg) has delivered us a local version of his drawing program. So applause again for Joseph! By installing the new node-red-contrib-drawsvg node, you can now host your own local DrawSvg service inside Node-RED (and use that local URL in your node-red-contrib-ui-svg node).
This node has not been published on NPM yet, so you can install it directly from my Github account:
npm install bartbutenaers/node-red-contrib-drawsvg
P.S. we haven't added this functionality to the node-red-contrib-ui-svg itself, because an extra 65 Mbyte is required (which would be a waste of resources for most users)...
Have fun with it!!
Bart and Steve