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#921 - Close vertex list for plotting #937

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Dec 10, 2018
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#921 - Close vertex list for plotting #937

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38 changes: 34 additions & 4 deletions src/plot_recipes.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,10 @@ plotting singletons.
vlist = transpose(hcat(convex_hull(vertices_list(P))...))
(x, y) = vlist[:, 1], vlist[:, 2]

# add first vertex to "close" the polygon
push!(x, vlist[1, 1])
push!(y, vlist[1, 2])

seriestype := norm(vlist[1, :] - vlist[2, :]) ≈ 0 ? :scatter : :shape

x, y
Expand Down Expand Up @@ -92,7 +96,13 @@ correctly.
@assert dim(X) == 2 "cannot plot a $(dim(X))-dimensional set"
Pi = Approximations.overapproximate(X)
vlist = transpose(hcat(convex_hull(vertices_list(Pi))...))
@series (x, y) = vlist[:, 1], vlist[:, 2]
x, y = vlist[:, 1], vlist[:, 2]

# add first vertex to "close" the polygon
push!(x, vlist[1, 1])
push!(y, vlist[1, 2])

@series (x, y)
end
end

Expand Down Expand Up @@ -127,6 +137,10 @@ julia> plot(randn(2, 2) * B, 1e-3);
vlist = transpose(hcat(vertices_list(P)...))
(x, y) = vlist[:, 1], vlist[:, 2]

# add first vertex to "close" the polygon
push!(x, vlist[1, 1])
push!(y, vlist[1, 2])

x, y
end

Expand Down Expand Up @@ -163,7 +177,13 @@ julia> plot([B1, B2], 1e-4);
@assert dim(X) == 2 "cannot plot a $(dim(X))-dimensional set"
Pi = Approximations.overapproximate(X, ε)
vlist = transpose(hcat(vertices_list(Pi)...))
@series (x, y) = vlist[:, 1], vlist[:, 2]
x, y = vlist[:, 1], vlist[:, 2]

# add first vertex to "close" the polygon
push!(x, vlist[1, 1])
push!(y, vlist[1, 2])

@series (x, y)
end
end

Expand Down Expand Up @@ -214,7 +234,11 @@ julia> plot(P);
vlist = transpose(hcat(points...))
(x, y) = vlist[:, 1], vlist[:, 2]

x, y
# add first vertex to "close" the polygon
push!(x, vlist[1, 1])
push!(y, vlist[1, 2])

x, y
end

"""
Expand Down Expand Up @@ -269,7 +293,13 @@ It is assumed that the given vector of polytopes is two-dimensional.
@assert dim(Pi) == 2 "cannot plot a $(dim(Pi))-dimensional polytope"
points = convex_hull(vertices_list(Pi))
vlist = transpose(hcat(points...))
@series (x, y) = vlist[:, 1], vlist[:, 2]
x, y = vlist[:, 1], vlist[:, 2]

# add first vertex to "close" the polygon
push!(x, vlist[1, 1])
push!(y, vlist[1, 2])

@series (x, y)
end
end

Expand Down