I installed Julia and Gadfly correctly on Windows 10 (I run a kaveri box amd64 machine).
My question is not about Julia hence I chose the offtopic section.
I looked at the Gadfly documentation which is helpful.
It is clear on how you plot things and how you read in the data (e.g. from an Rdataset file or a file made by the Rdataset utility in R) etc. I have R installed on this machine and I can look up Rdataset on it and make it work.
In the example plots I can see 2D charts with sets of x and y coordinates.
E…g. the set (1,1) ,(2,2), (3,3), (4,4), (5.5) should give a straight line going through the origin with a slope of 1.
Or something like that.
Can Gadly plot what is termed a 3D surface chart.
Like this one:
Can it do this or should I go for pyqtgraph instead?
I think you need to use numpy and csvread or something to enter data from data file into pyqtgraph as far as I
May be there is an alternative way to one of the widget things from Qt Designer or from pyqtgraph itself but it is a bit cryptic trying to figure that out for me at present.