4aiman
4637846839
The per-pass thickness split fragmented each segment into a run per weight change, turning a ~1.4k-segment network into ~84k polylines and janking the map. Draw one polyline per segment at its median-pass width instead (verified on device: 1430 vs 84083). Add buildRoadSegments (segment + bbox) and cullRoadsInto (draw only segments meeting the padded view, redraw on moveend/zoomend); the recording overlay now renders on a canvas pane instead of SVG, and showRoadsMap culls too. Thickness is now per-segment (median) rather than per-point — a deliberate simplification. |
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