private List <Tile> MakeTileMatrix(int levelOfDetail, List <List <AltitudeResponse> > altitudes)
{
List <Tile> tileMatrix = new List <Tile>();
foreach (var line in altitudes)
{
foreach (var point in line)
{
TileSystem.LatLongToPixelXY(point.Location.Lat, point.Location.Lng, levelOfDetail, out var pixelX, out var pixelY);
TileSystem.PixelXYToTileXY(pixelX, pixelY, out var tileX, out var tileY);
TileSystem.MapPixelXYToTileInnerPixelXY(pixelX, pixelY, out var tileInnerX, out var tileInnerY);
MapPoint mapPoint = new MapPoint(tileInnerX, tileInnerY, point.Elevation);
if (mapPoint.Z > 0)
{
Tile tile = tileMatrix.FirstOrDefault(t => t.TileX == tileX && t.TileY == tileY);
if (tile == null)
{
tile = new Tile(levelOfDetail, tileX, tileY);
tileMatrix.Add(tile);
}
tile.Points.Add(mapPoint);
}
}
}
return(tileMatrix);
}
public static QkTile GetQktileFromPix(Vector2Int pix, int lod)
{
TileSystem.PixelXYToTileXY(pix.x, pix.y, out var xidx, out var yidx);
var rv = new QkTile(lod, xidx, yidx);
return(rv);
}
public static RelativePixel GetRelativePixel(double lat, double lon, int zoom)
{
TileSystem.LatLongToPixelXY(lat, lon, zoom, out int pixelX, out int pixelY);
TileSystem.PixelXYToTileXY(pixelX, pixelY, out int tileX, out int tileY);
return(new RelativePixel()
{
pixel = new Point(pixelX - (256 * tileX), pixelY - (256 * tileY)),
tile = new Point(tileX, tileY)
});
}
public void PixelXYToTileXY_ShouldReturnCorrectTileXYCoordinates()
{
int pileX = 876680;
int pileY = 481296;
(int tileX, int tileY)expected = (3424, 1880);
(int tileX, int tileY)actual = TileSystem.PixelXYToTileXY(pileX, pileY);
Assert.Equal(expected, actual);
}
/// <summary>
/// This will list all the affected assets affected by lightning strikes.
/// </summary>
/// <returns>A collection of Asset objects.</returns>
public List <Asset> ListAffectedAssets()
{
// This will get the data of lightning strikes.
var strikes = _dataContext.Strikes
.Where(x => x.FlashType == FlashType.CloudToGround);
// This will initialize the quad key collection.
var quadKeys = new List <string>();
// This will iterate through the collection of lightning strikes.
foreach (var item in strikes)
{
// This will initialize the required values
int pixelX, pixelY, tileX, tileY;
// This will convert the inital longitude and latitude value to pixel x and y values.
TileSystem.LatLongToPixelXY(item.Latitude, item.Longitude, 12, out pixelX, out pixelY);
// This will convert the pixel x and y values to tile x and y values.
TileSystem.PixelXYToTileXY(pixelX, pixelY, out tileX, out tileY);
// This will convert the tile x and y values to a usable quad key.
var quadKey = TileSystem.TileXYToQuadKey(tileX, tileY, 12);
// This will determine if the resulting quad key already exists in the collection.
if (!quadKeys.Contains(quadKey))
{
// This will add the quad key to the quad key collection.
quadKeys.Add(quadKey);
}
}
// This will extract the affected assets by their quad key.
var affectedAssets = _dataContext.Assets.Where(x => quadKeys.Contains(x.QuadKey));
return(affectedAssets.ToList());
}
public static Point LatLonToTileCoordinate(double latitude, double longitude, int zoomFactor)
{
TileSystem.LatLongToPixelXY(latitude, longitude, zoomFactor, out int pixelX, out int pixelY);
TileSystem.PixelXYToTileXY(pixelX, pixelY, out int tileX, out int tileY);
return(new Point(tileX, tileY));
}
