I am trying to enhance LineChart so that the displayed data points can be dragged around with the mouse, turning a chart into an input device.
Currently I have an itemMouseMove handler on the chart which gets and converts the mouse co-ordinates, and changes the data point under the mouse - theData.setItemAt where theData is the array containing the data points. I'm pretty sure this is the wrong way to do it. - Do I need to write a custom chart or a custom series? Or something else? - Does anyone have an example of writing a custom chart / series? I really appreciate the help on this. Thanks, Graham King
