pixelYToTileY method
Converts a pixel Y coordinate to the tile Y number.
@param pixelY the pixel Y coordinate that should be converted. @param zoomLevel the zoom level at which the coordinate should be converted. @return the tile Y number.
Implementation
int pixelYToTileY(double pixelY) {
assert(pixelY >= 0);
assert(pixelY <= _mapSize);
return min(pixelY / tileSize, scalefactor.scalefactor - 1).floor();
}