I thought Shoes should have a plot widget and I happened to have some ancient 1989 Java code (still works) that I could re-purpose into a C/Cairo based ‘plot’ widget for Shoes. Shiny! New! Fun! Might as well fix some know problems with that old code. So I did that It wasn’t the easiest thing in to do in Shoes but not the hardest either. There are many sharp edges to make round so it might not be in Shoes 3.3.2 – currently it’s issue 264.
It’s never going to be gnuplot replacement. If you need that level of control, you’re already using gnuplot or matlab. This would only be a gateway into the world of visualization).
I like it and there is the possibility to add to the graph in real time with new data or add new data series to plot,
It’s also a long road to release quality. I did mention the edge case problems, Yes, I did.