MagneticFieldViewer

[tknopp]

I merged functionality into Winston that allows to draw arrows. Here is the code

using Winston
x = repeat(range(1,15,length=15),1,15);
y = repeat(transpose(range(1,15,length=15)),15,1);
pl = Winston.imagesc(rand(15,15))
Winston.add( pl, Winston.Arrows(vec(x),vec(y),2*pi*rand(225,1),4*rand(225,1), 
              linewidth=3.0, color="white") )

This results in:

We now could think about some nice magnetic field viewer. I imagine a 3D viewer with slices similar to the DataViewer. BasedViewer/SimpleDataViewer are reduced examples that one can use as a starting point.

@mboberg @nHackel