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- split backend API into route/service/repository boundaries across stats, owner, and pathing\n- extract shared API bootstrap and helper modules\n- reduce MapLibreMap into smaller frontend map modules with extracted builders, config, popup UI, and types\n- continue worker modularization by extracting RF terrain/tile helpers alongside RF config and loss helpers\n- add repo-local architecture, DB lifecycle, link model, pathing, frontend map, and contributing docs\n\nThis is the verified refactor checkpoint: backend and frontend builds passed, worker syntax checks passed, affected containers were rebuilt, and /healthz is OK.
45 lines
1.0 KiB
Markdown
45 lines
1.0 KiB
Markdown
# Link Model
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## Purpose
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`node_links` represents the physical or physically-rated link graph used by the map and the path resolver.
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## Evidence layers
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The model distinguishes between:
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- physical feasibility
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- terrain
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- path loss
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- LOS tolerance
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- radio-neighbour evidence
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- repeater-reported neighbour quality
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- packet evidence
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- strongest: multibyte path evidence
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- weaker: generic packet observation
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## Worker ownership
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The worker computes:
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- terrain profile
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- total path loss
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- viability
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- coverage polygons
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Relevant files:
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- `viewshed-worker/rf/config.py`
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- `viewshed-worker/rf/loss.py`
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- `viewshed-worker/rf/terrain.py`
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- `viewshed-worker/worker.py`
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## Practical tuning knobs
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- `LINK_LOS_MAX_V`
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- `DEFAULT_USABLE_PATH_LOSS_DB`
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- calibration controls in `rf/config.py`
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- frontend display bands in `frontend/src/components/Map/mapConfig.ts`
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## Contributor rule
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Do not treat packet observation counts as if they are the same thing as physical feasibility. If a change affects topology definition, make sure the evidence class is explicit.
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