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[AZ-375] [AZ-377] HashSet tile lookup + consolidate Earth constants
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Batch 24 of 03-code-quality-refactoring run; closes the run.

AZ-375 (C22): GoogleMapsDownloaderV2.DownloadTilesGridAsync now
builds a HashSet<(int X, int Y, int Z)> once from existingTiles
and tests Contains((x, y, zoomLevel)) per cell. Removes the per-cell
FirstOrDefault tolerance scan and the unused _processingConfig
.LatLonTolerance reference at this site.

AZ-377 (C24): promote Earth + tile-pixel constants to a single
home. GeoUtils now exposes EarthRadiusMeters, EarthEquatorial
CircumferenceMeters, MetersPerDegreeLatitude as public const.
MapConfig adds DefaultTileSizePixels (const) wired as the
TileSizePixels property default. TileRepository and Google
MapsDownloaderV2 read those constants instead of duplicating
the literals 6378137, 40075016.686, 111000.0, and 256.

Tests: +6 new (DownloaderRefactorTests, extended GeoUtils
RefactorTests). 200/200 unit tests pass.

Cumulative K=3 review (batches 22-24): PASS_WITH_WARNINGS,
4 Low findings only — see
_docs/03_implementation/reviews/cumulative_review_22-24.md.

Tooling fix: scripts/run-tests.sh --unit-only path now restores
before testing (was failing on SixLabors resolution in clean
container). Stripped stray BOM from MapConfig.cs to satisfy the
.editorconfig charset gate.

Updates _dependencies_table.md to reflect all 27 03-code-quality-
refactoring tasks done; updates _autodev_state.md to refactor
phase 5 (test-sync).

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Oleksandr Bezdieniezhnykh
2026-05-11 05:14:51 +03:00
parent 6099d1c86b
commit 9a53bff92e
13 changed files with 456 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files
SatelliteProvider.Common/Utils/GeoUtils.cs
+7 -5
View File
@@ -4,7 +4,9 @@ namespace SatelliteProvider.Common.Utils;
public static class GeoUtils
{
private const double EARTH_RADIUS = 6378137;
public const double EarthRadiusMeters = 6378137d;
public const double EarthEquatorialCircumferenceMeters = 40075016.686d;
public const double MetersPerDegreeLatitude = 111000d;
public static (int x, int y) WorldToTilePos(GeoPoint point, int zoom)
{
@@ -29,7 +31,7 @@ public static class GeoUtils
Math.Cos(lat1Rad) * Math.Cos(lat2Rad) *
Math.Sin(dLon / 2) * Math.Sin(dLon / 2);
var c = 2 * Math.Asin(Math.Sqrt(a));
var distance = EARTH_RADIUS * c;
var distance = EarthRadiusMeters * c;
var y = Math.Sin(dLon) * Math.Cos(lat2Rad);
var x = Math.Cos(lat1Rad) * Math.Sin(lat2Rad) -
@@ -46,7 +48,7 @@ public static class GeoUtils
public static GeoPoint GoDirection(this GeoPoint startPoint, Direction direction)
{
var angularDistance = direction.Distance / EARTH_RADIUS;
var angularDistance = direction.Distance / EarthRadiusMeters;
var azimuthRadians = ToRadians(direction.Azimuth);
var startLatRad = ToRadians(startPoint.Lat);
var startLonRad = ToRadians(startPoint.Lon);
@@ -73,11 +75,11 @@ public static class GeoUtils
{
var latRad = centerGeoPoint.Lat * Math.PI / 180.0;
var latDiff = (radiusM / EARTH_RADIUS) * (180.0 / Math.PI);
var latDiff = (radiusM / EarthRadiusMeters) * (180.0 / Math.PI);
var minLat = Math.Max(centerGeoPoint.Lat - latDiff, -90.0);
var maxLat = Math.Min(centerGeoPoint.Lat + latDiff, 90.0);
var lonDiff = (radiusM / (EARTH_RADIUS * Math.Cos(latRad))) * (180.0 / Math.PI);
var lonDiff = (radiusM / (EarthRadiusMeters * Math.Cos(latRad))) * (180.0 / Math.PI);
var minLon = Math.Max(centerGeoPoint.Lon - lonDiff, -180.0);
var maxLon = Math.Min(centerGeoPoint.Lon + lonDiff, 180.0);