matplotlib polycollection svg

hex.svg

plot.jl

using PyPlot

PolyCollection = PyPlot.matplotlib.collections.PolyCollection
polygon = [[0.0, 0.0], [1.0, 0.0], [0.0, 1.0]]
# force new axes
ax = PyPlot.axes(label=string(Base.UUID(rand(UInt128))))
ax.set_aspect(1.0)
n = 2000
hb = ax.hexbin(randn(n), 6 * rand(n); gridsize=20)

#=
offsets = 100 .* rand(n, 2)

# https://github.com/matplotlib/matplotlib/blob/40862a32e86ed3a9a67790dc249da13971f1a37d/lib/matplotlib/axes/_axes.py#L4886-L4892
poly_collection = PolyCollection(
    [polygon],
    offsets = offsets,
    edgecolors = "face",
    facecolors = rand(n, 4),
    transOffset = matplotlib.transforms.AffineDeltaTransform(ax.transData),
)

(xmin, xmax) = extrema(offsets[1, :])
(ymin, ymax) = extrema(offsets[2, :])
corners = ((xmin, ymin), (xmax, ymax))
ax.update_datalim(corners)
ax._request_autoscale_view(tight=true)

ax.add_collection(poly_collection, autolim=false)
=#
display(ax.figure)
ax.figure.savefig("hex.svg")

tri.svg