If you like the drawing interaction itself and want to re-use it elsewhere, there's a self-contained version at http://dygraphs.com/tests/drawing.html http://dy

If you like the drawing interaction itself and want to re-use it elsewhere, there's a self-contained version at http://dygraphs.com/tests/drawing.html http://dygraphs.com/tests/drawing.html which also features a zoom and eraser tool.