c06654293c
sylpheed-port mapped the menu's edge residual at 64 px tiles and handed over coordinates without names, which is the division I proposed: the map is theirs, the element inventory is mine. Under the hot band at x 384..704, y 64..256 sit ptframe1.t32, ptbtn01.rat (the NEW GAME button) and pteff12.t32, an effect element -- all three hot under BOTH coordinate readings, so the answer does not depend on whether their tiles are in design or capture space. ptbtn02 is hot in design space only. So the hot region is not one element but three of different kinds overlapping, which is consistent with their null: they looked for two families of tile and found one continuous population, so the region has no character of its own. This names what is there, not what is wrong -- their map already excludes local displacement in these tiles. Also records their control limit: a +2 px displacement reads back +0.839 because the slope saturates, so any slope they report is a floor on the displacement and never a ceiling. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
39 lines
2.2 KiB
Plaintext
39 lines
2.2 KiB
Plaintext
# What sits under the port's hot residual tiles on the main menu? 2026-08-31.
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#
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# sylpheed-port mapped the menu's edge residual at 64 px tiles and handed over
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# COORDINATES WITHOUT NAMES -- the element inventory is this side's. Their result:
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# hot tiles cluster at x 384..704, y 64..256, hottest (512,128) at 3.66x the median
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# tile, and NO tile in the hot region has moved (every |dx|,|dy| < 0.1 px against a
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# control reading a true 1 px at +0.949).
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#
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# ⚠️ COORDINATE FRAME. Their tiles are in the frame they compare in; the disc is
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# design space, and the two differ by the capture offset
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# (capture_y = 64.82 + 0.9919 * design_y). So both readings were tested rather than
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# one assumed -- and the answer does not depend on it: three elements are hot under
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# BOTH.
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#
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# ✅ ELEMENTS WHOSE REST POSITION FALLS IN THE HOT BAND (GP_TITLE entry 5):
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#
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# ptframe1.t32 (440, 108) pivot (124,140) HOT under both readings
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# ptbtn01.rat (542, 162) pivot ( 42, 22) HOT under both -- the NEW GAME button
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# pteff12.t32 (467, 180) pivot (174,180) HOT under both -- an effect element
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# ptbtn02.rat (542, 242) pivot ( 58, 22) hot in DESIGN space only
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#
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# 📌 THE HOT REGION IS NOT ONE ELEMENT. It is where a FRAME, a BUTTON and an
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# EFFECT overlap -- three elements of different kinds stacked in the same band.
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# That is consistent with their null result: they went looking for two families of
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# tile (edge-only versus hot-everywhere) and found one continuous population, so
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# the region has no character of its own.
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#
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# ⚠️ WHAT THIS DOES NOT SAY. It names what is THERE, not what is wrong. Their map
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# already excludes local displacement in these tiles, so this is not a misplaced
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# element; the inventory is offered as the next reader's starting point, not as a
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# diagnosis. The residual's cause remains open.
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#
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# 📌 AND A CONTROL LIMIT OF THEIRS THAT CHANGES HOW ANY SLOPE READS: a known +2 px
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# displacement localises perfectly but reads back +0.839, because the slope is a
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# linearisation (residual ~ dx * gradient) that saturates once dx approaches the
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# width of an edge. So their +1 px control gives localisation AND magnitude, the
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# +2 px control gives localisation and SIGN only, and **any slope they report is a
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# FLOOR on the displacement, never a ceiling**.
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