Hi,
If you're looking for a modern plotting/graph widget with, as you mentioned, no dependencies apart from Qt, you might be interested in my QCustomPlot component. It can be included directly as source file, so no need to juggle with libraries and linkage etc.:
http://www.WorksLikeClockwork.com/in...lotting-widget



It's by far not as large as QWT, but especially in your case, this can actually be an advantage. Oh yes, and I take the
documentation and tutorials/examples very seriously.