36 lines
1.2 KiB
Markdown
36 lines
1.2 KiB
Markdown
# Native Lane Separator Style Overrides Design
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## Contract
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The override is identified by the stable `roadId` plus the adjacent lane pair:
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```json
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{
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"id": "车道分隔线:road:way/123:forward:1-2",
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"kind": "lane-separator-style",
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"roadId": "road:way/123:forward",
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"leftLaneIndex": 1,
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"rightLaneIndex": 2,
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"color": "white",
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"pattern": "dashed"
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}
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```
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The same `yellow|white` and `dashed|solid` enums are reused. A default is
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white dashed. The generated Polygon stores `color`, `pattern` and
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`effective_style`; source IDs remain unchanged.
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## Rendering
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The existing lane separator polygon represents the whole lane-pair path.
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`solid` retains it as one continuous feature. `dashed` samples regular dash
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polygons along the shared centreline with deterministic spacing and preserves
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junction cutback. White uses the existing `lane_separators` material; yellow
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uses a native-only yellow material route. Workbench separates lane separators
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from turn arrows so their styles remain selectable and visible.
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## Compatibility
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No override means current visual default. Road edges, curbs and centre lines
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are untouched. Existing `native-road-overrides/v1` files remain valid.
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