public virtual void PixelYToLatitudeTest()
{
foreach (int tileSize in TILE_SIZES)
{
for (sbyte zoomLevel = ZOOM_LEVEL_MIN; zoomLevel <= ZOOM_LEVEL_MAX; ++zoomLevel)
{
long mapSize = MercatorProjection.GetMapSize(zoomLevel, tileSize);
double latitude = MercatorProjection.PixelYToLatitude(0, mapSize);
Assert.AreEqual(MercatorProjection.LATITUDE_MAX, latitude, 0);
latitude = MercatorProjection.PixelYToLatitudeWithScaleFactor(0, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual(MercatorProjection.LATITUDE_MAX, latitude, 0);
latitude = MercatorProjection.PixelYToLatitude((float)mapSize / 2, mapSize);
Assert.AreEqual(0, latitude, 0);
mapSize = MercatorProjection.GetMapSizeWithScaleFactor(MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
latitude = MercatorProjection.PixelYToLatitudeWithScaleFactor((float)mapSize / 2, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual(0, latitude, 0);
latitude = MercatorProjection.PixelYToLatitude(mapSize, mapSize);
Assert.AreEqual(MercatorProjection.LATITUDE_MIN, latitude, 0);
latitude = MercatorProjection.PixelYToLatitudeWithScaleFactor(mapSize, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual(MercatorProjection.LATITUDE_MIN, latitude, 0);
}
VerifyInvalidPixelYToLatitude(-1, (sbyte)0, tileSize);
VerifyInvalidPixelYToLatitude(tileSize + 1, (sbyte)0, tileSize);
}
}
public virtual void LongitudeToPixelXTest()
{
foreach (int tileSize in TILE_SIZES)
{
for (sbyte zoomLevel = ZOOM_LEVEL_MIN; zoomLevel <= ZOOM_LEVEL_MAX; ++zoomLevel)
{
long mapSize = MercatorProjection.GetMapSize(zoomLevel, tileSize);
double pixelX = MercatorProjection.LongitudeToPixelX(LatLongUtils.LONGITUDE_MIN, mapSize);
Assert.AreEqual(0, pixelX, 0);
pixelX = MercatorProjection.LongitudeToPixelXWithScaleFactor(LatLongUtils.LONGITUDE_MIN, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual(0, pixelX, 0);
pixelX = MercatorProjection.LongitudeToPixelX(0, mapSize);
Assert.AreEqual((float)mapSize / 2, pixelX, 0);
mapSize = MercatorProjection.GetMapSizeWithScaleFactor(MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
pixelX = MercatorProjection.LongitudeToPixelXWithScaleFactor(0, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual((float)mapSize / 2, pixelX, 0);
pixelX = MercatorProjection.LongitudeToPixelX(LatLongUtils.LONGITUDE_MAX, mapSize);
Assert.AreEqual(mapSize, pixelX, 0);
pixelX = MercatorProjection.LongitudeToPixelXWithScaleFactor(LatLongUtils.LONGITUDE_MAX, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual(mapSize, pixelX, 0);
}
}
}
public virtual void GetMapSizeTest()
{
foreach (int tileSize in TILE_SIZES)
{
for (sbyte zoomLevel = ZOOM_LEVEL_MIN; zoomLevel <= ZOOM_LEVEL_MAX; ++zoomLevel)
{
long factor = (long)Math.Round(MercatorProjection.ZoomLevelToScaleFactor(zoomLevel));
Assert.AreEqual(tileSize * factor, MercatorProjection.GetMapSize(zoomLevel, tileSize));
Assert.AreEqual(MercatorProjection.GetMapSizeWithScaleFactor(MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize), MercatorProjection.GetMapSize(zoomLevel, tileSize));
}
VerifyInvalidGetMapSize((sbyte)-1, tileSize);
}
}
public virtual void TileYToLatitudeTest()
{
foreach (int tileSize in TILE_SIZES)
{
for (sbyte zoomLevel = ZOOM_LEVEL_MIN; zoomLevel <= ZOOM_LEVEL_MAX; ++zoomLevel)
{
double latitude = MercatorProjection.TileYToLatitude(0, zoomLevel);
Assert.AreEqual(MercatorProjection.LATITUDE_MAX, latitude, 0);
latitude = MercatorProjection.TileYToLatitude(0, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel));
Assert.AreEqual(MercatorProjection.LATITUDE_MAX, latitude, 0);
long tileY = MercatorProjection.GetMapSize(zoomLevel, tileSize) / tileSize;
latitude = MercatorProjection.TileYToLatitude(tileY, zoomLevel);
Assert.AreEqual(MercatorProjection.LATITUDE_MIN, latitude, 0);
tileY = MercatorProjection.GetMapSizeWithScaleFactor(MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize) / tileSize;
latitude = MercatorProjection.TileYToLatitude(tileY, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel));
Assert.AreEqual(MercatorProjection.LATITUDE_MIN, latitude, 0);
}
}
}
