Mismatch between scatter point colors in legend and actual plot

[irenier]

The colors shown in the legend do not match the actual colors of the scatter points in the plot.

using GMT, DataFrames

df = DataFrame(
    longitude=linspace(0.0, 170.0, 100),
    latitude=linspace(0.0, 80.0, 100),
    type=repeat(["A", "B", "C", "D"], inner=25)
)

coast(region=(0, 170, 0, 80), proj=:Mercator, frame=:auto)
scatter!(
    df;
    xvar=:longitude,
    yvar=:latitude,
    proj=:Mercator,
    groupvar=:type,
    cmap=(:red, :blue, :green, :black),
    marker=:c,
    legend=true,
    show=true
)

[joa-quim]

I see. The first color is being lost.

[joa-quim]

Fixed by #1853

Note, you don't need to use DataFrames here. This will work too:

D = mat2ds([linspace(0.0, 170.0, 100) linspace(0.0, 80.0, 100)], textcol=repeat(["A", "B", "C", "D"], inner=25), colnames=("lon","lat","type"));

scatter(D, groupvar=:type, cmap=(:red, :blue, :green, :black), marker=:c, legend=true, show=true)

[irenier]

Thanks, @joa-quim.