After looking at some matplotlib examples, it seems that the data structure
needed by LineCollection in Python
is a list of lists, with the inner lists being lists of (x,y) pairs.
After playing around for a while, the following works for me
for drawing a pair of lines in Julia:
xs = [1., 3., 5., 0.]
ys = [2., 4., .06, 0.]
lines = Any[collect(zip(xs, ys))]
xs = [3., 4]
ys = [5., 6]
push!(lines, collect(zip(xs, ys)))
#lines = Vector{Float64}[[1.0, 2.0], [3.0 4.0], 5.0 .06]];Any[[0.0 0.0]]] #
Points
#c = Any[Any[1 0 0];Any[0 1 0];Any[0 0 1]] # Color
c = Vector{Int}[[1,0,0], [0,1,0], [0,0,1]]
line_segments = matplotlib[:collections][:LineCollection](lines, colors=c)
fig = figure("Line Collection Example")
ax = gca()
ax[:add_collection](line_segments)
axis("image")
El viernes, 10 de junio de 2016, 10:29:25 (UTC-4), NotSoRecentConvert
escribió:
>
> I'm trying to do a plot using LineCollection in PyPlot however am having a
> hard time converting an example (1
> <http://matplotlib.org/examples/pylab_examples/line_collection.html> or 2
> <http://matplotlib.org/examples/pylab_examples/line_collection2.html>).
>
> lines = Any[Any[[1.0 2.0]];Any[[3.0 4.0]];Any[[5.0 .06]];Any[[0.0 0.0]]] #
> Points
> c = Any[Any[1 0 0];Any[0 1 0];Any[0 0 1]] # Color
>
> line_segments = matplotlib[:collections][:LineCollection](lines,colors=c)
>
> fig = figure("Line Collection Example")
> ax = axes()
> ax[:add_collection](line_segments)
> axis("tight")
>
> It doesn't return an errors but I don't see any lines. Any idea what could
> be wrong?
>
