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Pre-fetch larger areas to reduce calls to overpass; split large requests up

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stopflock
2025-10-21 10:22:04 -05:00
parent d696e1dfb6
commit 2ccd01c691
7 changed files with 343 additions and 33 deletions
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lib/dev_config.dart
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@@ -64,6 +64,11 @@ const int kOsmApiMinZoomLevel = 13; // Minimum zoom for OSM API bbox queries (sa
const Duration kMarkerTapTimeout = Duration(milliseconds: 250);
const Duration kDebounceCameraRefresh = Duration(milliseconds: 500);
// Pre-fetch area configuration
const double kPreFetchAreaExpansionMultiplier = 3.0; // Expand visible bounds by this factor for pre-fetching
const int kPreFetchZoomLevel = 10; // Always pre-fetch at this zoom level for consistent area sizes
const int kMaxPreFetchSplitDepth = 3; // Maximum recursive splits when hitting Overpass node limit
// Follow-me mode smooth transitions
const Duration kFollowMeAnimationDuration = Duration(milliseconds: 600);
const double kMinSpeedForRotationMps = 1.0; // Minimum speed (m/s) to apply rotation