public static bool IsValid(BoundingBox box)
{
bool isntImpossible = (box.North > box.South) && (box.East > box.West);
bool withinBounds = (box.North <= 90) && (box.South >= -90) && (box.East >= -180) && (box.West <= 180);
return withinBounds && isntImpossible;
}
public static bool IsBlank(BoundingBox box)
{
if (box == null)
return true;
return box.North == 0 && box.South == 0 && box.East == 0 && box.West == 0;
}
public static string ToWkt(BoundingBox box)
{
return String.Format("POLYGON(({0:G7} {1:G7},{2:G7} {3:G7},{4:G7} {5:G7},{6:G7} {7:G7},{8:G7} {9:G7}))",
box.West, box.South,
box.East, box.South,
box.East, box.North,
box.West, box.North,
box.West, box.South);
}
public void should_be_correct_for_one_box_overlapping_the_other()
{
var southernIrishSea = new BoundingBox { North = 53.65873m, West = -6.967625m, South = 51.23337m, East = -3.950034m };
var englishChannel = new BoundingBox { North = 52.065138m, West = -9.793268m, South = 48.264071m, East = 1.939627m };
var min = BoundingBoxUtility.MinimumOf(new[] { southernIrishSea, englishChannel });
// the southern irish sea is to the north of the english channel
// but the english channel spans further to the east and west
min.North.Should().Be(southernIrishSea.North);
min.South.Should().Be(englishChannel.South);
min.East.Should().Be(englishChannel.East);
min.West.Should().Be(englishChannel.West);
}
public void should_be_correct_for_single_box()
{
var box = new BoundingBox { North = 21.9259m, West = -63.8981m, South = 17.9476m, East = -60.6832m };
var min = BoundingBoxUtility.MinimumOf(new[] { box });
min.North.Should().Be(box.North);
min.West.Should().Be(box.West);
}
public void can_identify_a_valid_bounding_box()
{
var englishChannel = new BoundingBox { North = 52.065138m, West = -9.793268m, South = 48.264071m, East = 1.939627m };
BoundingBoxUtility.IsValid(englishChannel).Should().BeTrue();
}
public void can_identify_a_bad_bounding_box_from_real_data()
{
var box = new BoundingBox { North = 58.5076m, West = -10.6494m, South = 56.7659m, East = -14.1198m };
BoundingBoxUtility.IsValid(box).Should().BeFalse();
}
public void can_identify_a_blank_box()
{
var box = new BoundingBox { North = 0, South = 0, East = 0, West = 0 };
BoundingBoxUtility.IsBlank(box).Should().BeTrue();
}
public void can_identify_an_impossibly_sized_bounding_box()
{
var outsideTheWorld = new BoundingBox { North = 10000m, West = -9.793268m, South = 48.264071m, East = 1.939627m };
BoundingBoxUtility.IsValid(outsideTheWorld).Should().BeFalse();
}
public void can_identify_an_impossibly_inverted_bounding_box()
{
var englishChannelWithNorthAndSouthInverted = new BoundingBox { North = 48.264071m, West = -9.793268m, South = 52.065138m, East = 1.939627m };
BoundingBoxUtility.IsValid(englishChannelWithNorthAndSouthInverted).Should().BeFalse();
}
public void can_create_correct_wkt()
{
var box = new BoundingBox { North = 40, South = 10, East = 60, West = 20 };
string wkt = BoundingBoxUtility.ToWkt(box);
wkt.Should().Be("POLYGON((20 10,60 10,60 40,20 40,20 10))");
}
public Metadata()
{
Keywords = new List<MetadataKeyword>();
TemporalExtent = new TemporalExtent();
ResponsibleOrganisation = new ResponsibleParty();
MetadataPointOfContact = new ResponsibleParty();
BoundingBox = new BoundingBox();
}
void AddTwoRecordsWithTheSameBoundingBox()
{
var wales = new BoundingBox { North = 53.98783m, South = 50.92033m, East = -2.919512m, West = -5.682273m };
var record1 = MakeExampleSeedRecord().With(r =>
{
r.Id = new Guid("50749e9a-4df5-4641-81a7-1fea04346be5");
r.Path = @"X:\path\for\record\with\same\bounding\box\as\another\1";
r.Gemini = r.Gemini.With(m =>
{
m.Title = "A record with the same bounding box an another (1)";
m.BoundingBox = wales;
});
r.Gemini.Keywords.Add(new MetadataKeyword { Vocab = "http://vocab.jncc.gov.uk/some-vocab", Value = "Bounding boxes" });
});
var record2 = MakeExampleSeedRecord().With(r =>
{
r.Id = new Guid("6a969b7f-18e8-4e96-b0ea-371d8e2ba774");
r.Path = @"X:\path\for\record\with\same\bounding\box\as\another\2";
r.Gemini = r.Gemini.With(m =>
{
m.Title = "A record with the same bounding box an another (2)";
m.BoundingBox = wales;
});
r.Gemini.Keywords.Add(new MetadataKeyword { Vocab = "http://vocab.jncc.gov.uk/some-vocab", Value = "Bounding boxes" });
});
recordService.Insert(record1);
recordService.Insert(record2);
}
