Two things the first version got wrong.
The arcs. One line per reporting station made a fan out of a single
square, and with a few dozen receivers it buried the decode arcs it was
drawn beside. They earned nothing either: an arc's job on the decode
layer is to say WHICH station a path belongs to, and here every path
starts in the same place. So marks only, and the mark is a hollow
diamond faded by age over the window. Shape rather than colour, because
the decode dots are filled circles and the arcs already use fourteen
colours — a fifteenth reads as another band. A divIcon, canvas being
able to draw circles and nothing else; affordable here at a few dozen
nodes where it would not be against three hundred arcs.
The controls. The basemap row was at left-12, which is 48 px, against a
zoom control that is 30 px of buttons plus its 10 px margin and a
border — so it overlapped, and the minus button took clicks meant for
Street. Then the colour input and the reverse-layer switch were added to
the same row, which grew until it reached the middle of a world map:
covering the Atlantic to spare a top-right corner that was empty
throughout, Leaflet putting nothing there but an attribution that lives
at the bottom. Basemaps stay left at left-16, the other two move right.
rouggy
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