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Fix Data Library share restore, dense tile layers and EPC partition reads
- Share links: the compact /share/<code> format carries the switched-on library entries (field 29), so Copy Link keeps them; a share opened in the same tab restores them; any share decides what is on, so one with every library entry off no longer switches on the recipient's stored entries. - A tile entry too dense at its minimum zoom (Norway cadastre z14, depth z11) is hidden below that scale via minimumTerrainLevel instead of allocating millions of tiles when zoomed out. - EPC partitions keep the full extent for exclusion and the 98 % extent for ranking only; the old trimmed-only extents are retired. - Partition index footers that fail transiently are retried; an incomplete index is never cached as complete, a complete prior index is kept, and it is rebuilt after five minutes. - Views that leave touching partitions unread are partial; listing and footer bodies are capped and ranges validated. - The Browse dialog relabels after a language switch.
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@@ -585,6 +585,24 @@ the ledger (append-only with `--base-ref`, run in CI on pull requests) and the
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generated DATA_SOURCES.md section; `npm run library:probe` hits every upstream
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once; `npm run qa:data-library` is the browser gate (fixture-backed).
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Shares: the compact `/share/<code>` link carries the switched-on entries in
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field 29 (docs/SHARE-LINK-FORMAT.md), so Copy Link keeps them, and a share
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opened later in the same tab (pasted address, Back/Forward) restores them too.
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Any share decides what is on, as for core layers: one with no library entry
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on switches the recipient's stored ones off and leaves them listed. A tile
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entry whose coverage needs more than 256 tiles at its minimum zoom (Norway's
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cadastre from z14, sea depths from z11) is hidden below that scale through
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Cesium's `minimumTerrainLevel`, so zoomed out it requests nothing. EPC
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partitions learn two extents (`gev:library:extent:v2:`): every point's box
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rules a partition out, the 98 % box only ranks it, so homes at a partition's
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edge are found on later visits; the v1 trimmed-only key is dropped. A
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partition index whose footers keep failing after two retries is
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`complete: false`: neither the server nor the browser keeps it as whole, a
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complete earlier index is served instead, and it is rebuilt after five
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minutes. A view that leaves partitions touching it unread is PARTIAL. Listing
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pages and footer reads are size-capped and ranges are validated. The Browse
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dialog rebuilds on a language switch, keeping its filters.
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## Utilities panel — October 29, 2026
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UTILITIES is its own left-side panel, between Data Layers and Scenes, with
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+37
-31
@@ -117,36 +117,37 @@ probability of about 255 in 256 (many of them already fail as base64url).
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## Field registry (top level)
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| # | State key | Type | Default | Encoding |
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| --- | ---------------------------- | ----- | ----------- | ----------------------------------------------------------------- |
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| 1 | `view.kind` | enum | see below | 0 place, 1 thing |
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| 2 | `lat` | coord | 0 | zigzag of degrees × 10⁴ |
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| 3 | `lon` | coord | 0 | zigzag of degrees × 10⁴ |
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| 4 | `alt` | sint | 800 | whole metres |
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| 5 | `heading` | angle | 0 | whole degrees, see angles |
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| 6 | `pitch` | sint | −35 | whole degrees |
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| 7 | `roll` | angle | 0 | whole degrees |
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| 8 | `sharedAtMs` | epoch | none | zigzag seconds since 2026-01-01T00:00:00Z |
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| 9 | booleans | flags | 0 | bit set when the value differs from default |
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| 10 | `layerState.enabledLayerIds` | LEN | none | layer bitset, see layers |
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| 11 | `layerState.options` | LEN | none | packed option triples, see layers |
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| 12 | `panelState` | LEN | none | packed panel entries, see panels |
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| 13 | thing | LEN | none | sub-message, see thing views |
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| 14 | `style` | enum | `normal` | normal, retro, surveillance, thermal, anime, noir, snow (retired) |
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| 15 | `mapStack` | enum | `photoreal` | photoreal, bing-aerial, bing-labels, esri-imagery, osm |
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| 16 | `hudVariant` | enum | style | tactical, operator (retired), minimal, cyber |
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| 17 | `bloomIntensity` | uint | style | |
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| 18 | `bloomVersion` | uint | 2 | |
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| 19 | `sharpenIntensity` | uint | style | |
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| 20 | `detectionMode` | enum | style | OFF, SPARSE, BALANCED, DENSE |
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| 21 | `detectionDensity` | uint | style | one of 0, 25, 50, 75, 100 |
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| 22 | `detectionAllocation` | enum | style | ELASTIC, WEIGHTED |
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| 23 | `detectionFadePct` | uint | style | 0–40 |
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| 24 | `detectionOutsideOpacityPct` | uint | style | 0–100 |
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| 25 | `scopeFeatherPct` | uint | 100 | 0–200 |
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| 26 | `scopeTerminusPct` | uint | none | 94–100; absent is the adaptive terminus |
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| 27 | `styleParams` | LEN | style | packed `(token, value × 100)` pairs |
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| 28 | `worldTime` | epoch | none (live) | zigzag seconds since 2026-01-01T00:00:00Z |
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| # | State key | Type | Default | Encoding |
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| --- | ---------------------------- | ----- | ----------- | --------------------------------------------------------------------- |
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| 1 | `view.kind` | enum | see below | 0 place, 1 thing |
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| 2 | `lat` | coord | 0 | zigzag of degrees × 10⁴ |
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| 3 | `lon` | coord | 0 | zigzag of degrees × 10⁴ |
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| 4 | `alt` | sint | 800 | whole metres |
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| 5 | `heading` | angle | 0 | whole degrees, see angles |
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| 6 | `pitch` | sint | −35 | whole degrees |
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| 7 | `roll` | angle | 0 | whole degrees |
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| 8 | `sharedAtMs` | epoch | none | zigzag seconds since 2026-01-01T00:00:00Z |
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| 9 | booleans | flags | 0 | bit set when the value differs from default |
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| 10 | `layerState.enabledLayerIds` | LEN | none | layer bitset, see layers |
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| 11 | `layerState.options` | LEN | none | packed option triples, see layers |
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| 12 | `panelState` | LEN | none | packed panel entries, see panels |
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| 13 | thing | LEN | none | sub-message, see thing views |
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| 14 | `style` | enum | `normal` | normal, retro, surveillance, thermal, anime, noir, snow (retired) |
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| 15 | `mapStack` | enum | `photoreal` | photoreal, bing-aerial, bing-labels, esri-imagery, osm |
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| 16 | `hudVariant` | enum | style | tactical, operator (retired), minimal, cyber |
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| 17 | `bloomIntensity` | uint | style | |
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| 18 | `bloomVersion` | uint | 2 | |
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| 19 | `sharpenIntensity` | uint | style | |
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| 20 | `detectionMode` | enum | style | OFF, SPARSE, BALANCED, DENSE |
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| 21 | `detectionDensity` | uint | style | one of 0, 25, 50, 75, 100 |
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| 22 | `detectionAllocation` | enum | style | ELASTIC, WEIGHTED |
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| 23 | `detectionFadePct` | uint | style | 0–40 |
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| 24 | `detectionOutsideOpacityPct` | uint | style | 0–100 |
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| 25 | `scopeFeatherPct` | uint | 100 | 0–200 |
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| 26 | `scopeTerminusPct` | uint | none | 94–100; absent is the adaptive terminus |
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| 27 | `styleParams` | LEN | style | packed `(token, value × 100)` pairs |
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| 28 | `worldTime` | epoch | none (live) | zigzag seconds since 2026-01-01T00:00:00Z |
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| 29 | `library` | LEN | none | Data Library ledger tokens, two base-36 characters each, concatenated |
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Field 1 absent means `thing` when field 13 is present and `place` otherwise,
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so v1 never writes it; a later view kind writes its code.
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@@ -164,6 +165,11 @@ Field 28 is the world time the link was made at, written only when it was away
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from live. A link without it opens live. Unlike field 8 it may lie ahead of the
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link's creation (a forecast moment), and it opens paused at that time.
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Field 29 lists the Data Library entries switched on, by their permanent
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tokens in `src/library/ledger.json` (the long form's `lib=ab.cd`). A share
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without it switches no library entry on; the recipient's added entries stay
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in their panel, off. Tokens this build does not know are skipped.
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Flag bits (field 9): 0 `bloom`, 1 `sharpen`, 2 `hudVisible`, 3
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`celestialRing` (each defaulting by style), 4 `scopeEnabled` (default on).
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@@ -391,7 +397,7 @@ the app that can open it.
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offers keeps its code: `snow` (6) is retired, so a link that names it
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opens as Normal and the parameters written for it are dropped.
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5. **Add, don't change.** A new setting takes the next free field number
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(28 onwards; fields 1–15 have one-byte tags and are all taken). A new
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(30 onwards; fields 1–15 have one-byte tags and are all taken). A new
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boolean takes the next flag bit instead, which costs nothing when it is at
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its default.
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6. **New view kinds and entity kinds** get the next code. A new entity kind's
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