public virtual void PixelXToLongitudeTest()
{
foreach (int tileSize in TILE_SIZES)
{
for (sbyte zoomLevel = ZOOM_LEVEL_MIN; zoomLevel <= ZOOM_LEVEL_MAX; ++zoomLevel)
{
long mapSize = MercatorProjection.GetMapSize(zoomLevel, tileSize);
double longitude = MercatorProjection.PixelXToLongitude(0, mapSize);
Assert.AreEqual(LatLongUtils.LONGITUDE_MIN, longitude, 0);
longitude = MercatorProjection.PixelXToLongitudeWithScaleFactor(0, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual(LatLongUtils.LONGITUDE_MIN, longitude, 0);
longitude = MercatorProjection.PixelXToLongitude((float)mapSize / 2, mapSize);
Assert.AreEqual(0, longitude, 0);
mapSize = MercatorProjection.GetMapSizeWithScaleFactor(MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
longitude = MercatorProjection.PixelXToLongitudeWithScaleFactor((float)mapSize / 2, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual(0, longitude, 0);
longitude = MercatorProjection.PixelXToLongitude(mapSize, mapSize);
Assert.AreEqual(LatLongUtils.LONGITUDE_MAX, longitude, 0);
longitude = MercatorProjection.PixelXToLongitudeWithScaleFactor(mapSize, MercatorProjection.ZoomLevelToScaleFactor(zoomLevel), tileSize);
Assert.AreEqual(LatLongUtils.LONGITUDE_MAX, longitude, 0);
}
VerifyInvalidPixelXToLongitude(-1, (sbyte)0, tileSize);
VerifyInvalidPixelXToLongitude(tileSize + 1, (sbyte)0, tileSize);
}
}
