C_Map.GetMapRectOnMap answered, for a continent on the world sheet, the
world-level CLICK box -- continent_sheet_rect over the WorldMapContinent
tile bounds, which trace the landmass. That is the reference's own
0x4a5d00 and right for what 1.12 uses it for; the two boxes are disjoint
so a world-level click can tell the continents apart.
It is the wrong answer for art. A continent's map is a 1002x668 sheet
with the land inside it and ocean around, so its art rect is 792x528 px
on the world where its click box is 300x564. Every 1.12 WorldMapArea
rect is 3:2, because every sheet is, and the click box is 0.355 of that.
A zone's rect on its continent was already a yard un-lerp and correct,
so the error entered once and multiplied through every zone: Dun Morogh
landed 42x79 where its art is 1002x668. A stitched world built on that
draws each zone a third as wide as it should be, which is why the canvas
was grey between the zoom steps.
map_proj::continent_art_rect carries the continent's own WorldMapArea
rect through world_uv, the projection a position on it already takes.
The view keeps both rects; the Era map graph publishes the art one.
Measured after: EK, Kalimdor, Dun Morogh and Elwynn all 1.500. Rendered:
the zone view stitches its neighbours in, zoom 3 is the continent with
its zones, zoom 1 is the world sheet. The stock 1.12 map is unchanged.
Three instruments came with it and are kept: $WOW_CAPTURE_EVAL, a chunk
run in a capture's VM at the shutter; $WOW_CAPTURE_EXPLORED, so a
stitched map's fog can be ruled out in one run; and a named warning for
a UI texture that is not in the chain, which is what refuted the other
hypothesis -- a grep said the addon's art was missing, a real render
asked for zero missing files.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn
gromandClaude Opus 5
6c01be926d