I'm trying to build and run a complicated imagemagick command from within
Julia (drawing tons of ellipses in various colors, sizes, etc). To
accomplish this I need to basically build a command out of many smaller
parts that are parsed in a for-loop. It looks a bit like this right now:
parseMagick(x,y,l,w) = `-fill $(l.h ? "magenta" : "yellow") -stroke none
-draw "fill-opacity $(l.p) ellipse $x,$y $(w*l.p*l.e),$(w*l.p) 0,360" `
cmds = Array(Cmd,xn,yn)
for i = 1:xn, j = 1:yn
cmds[i,j] = parseMagick(xs[i],ys[j],el[i,j],w)
end
run(`convert in.jpg $cmds out.jpg`)
This doesn't work because of how the cmds array is interpolated into the
command.
I suspect that I need to use some metaprogramming, which I still find hard
to grasp. Anyone knows a good way of doing this?
Thanks!
