Create datas by drawing a 2D graph in Matlab

I have been using Matlab for years and have always had that problem for making quick programs for testing, mainly because non straightforward values are hard to quickly generate in Matlab (e.g. torque vs. current motor graph, ICs limit temperature vs. current, etc.).

I would like to be able to draft, using the mouse, a 2D graph, that will be converted directly in Matlab into 2D (nx2 matrix, structure with 2 fields, etc.) into usable draft data. Example of application would be drawing an approximate Torque vs. Current graph that characterize Motors, that is very painful to acquire or create in Matlab otherwise.

Do you know how that would be possible?

Thank you,

Answer 1

[Partha Ghosh]

Use this function and then you can write it yourself. "[x,y] = ginput(n)" look at this page . Not sure how useful it will be at the end though. It is difficult to draw a nice graph with mouse.