The world map was the only one that remembered anything. Panning and
zooming a map is the operator saying which part of the world they work,
and on the FT decodes map and the grid-square map that was thrown away on
every tab switch. Both now keep centre and zoom, through one shared
helper (lib/mapView) that the world map uses too, and the keys are
portable so a copied data folder brings the views with it.
The world map also waits for the station's square before it paints. It
drew the world at 0 degrees and then moved to the operator's longitude —
a screenful of Esri tiles fetched and discarded on every first run. It is
now built once, knowing where it is looking; a profile with no locator
gets the default view after two seconds rather than a blank panel.
The hard maxBounds added for the single-world look fought the zoom: with
the world smaller than the window the clamp dragged every zoom step into
a corner. The noWrap tiles already guarantee one world on their own, so
the bounds go — on both maps.
The grid-square map drew the world two or three times across a wide window, each
copy carrying the same squares — worldCopyJump earns its keep on the great-circle
map, where a path reads better crossing a second Asia, and costs only confusion
on a map of where you have been heard. It is off here, the tiles no longer wrap,
and addBasemap takes the option so the other map is untouched.
Zooming out far enough to hold Greenland and Antarctica together was impossible:
the floor was zoom 1, and one step further out was already too far. Zoom 0 is
the whole planet, and the view now opens on a fitWorld computed from the
container rather than a guessed zoom level — repeated once when the container
first has a real size, because the tab is mounted hidden.
That exposed the next thing: Esri answers a request outside the world with a grey
"Map data not yet available" tile, and zoomed out that was most of the screen.
The tile layers carry a bounds, so those tiles are never asked for, and what is
left beside the planet is the panel's own background instead of a white slab.
Finally the mode filter offers All, Phone and CW beside Digital and FTx. The
backend already accepted all of them — GridSquares understands "ALL" and the
ModeClass names — only the interface was offering two.
rouggy