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Document End trendline here: cutoff clips, last_t does not move.

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The menu hid the item unless the click was past the second anchor.
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Chris Amow 2026-09-04 03:34:58 -05:00
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docs/implementation.md
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@ -1407,3 +1407,14 @@ Schwab still prints many forming ticks per frame. Those now coalesce to one
`color-mix` shine. That cannot run on the compositor. Turning it off dropped
tab CPU from ~20% to ~5%. The cue is now a 20px frame around the right-hand
price label, opacity only.
### 2026-08-31 — End trendline here was hidden unless the click was past last_t
The context item only appeared when `cutoff > last_t`. A line whose second
anchor already sits at or past the live edge never offered it; Duplicate and
Delete still showed. The click does not move `last_t`. It sets `cutoff_t`,
which clips drawing. Slope and both handles stay. Extend clears the cutoff.
The menu now offers End here for any click after the earlier of the two
anchors, including on the body between them and at `last_t` itself (that
stops the projection without moving the end handle).