public void IsInRing_ThrowsArgumentExceptionIfRingHasLessThen3Points()
{
Coordinate c = new Coordinate(0, 0);
CoordinateList ring = new CoordinateList(new Coordinate[] { new Coordinate(0, 1), new Coordinate(1, 0) });
Euclidean2DLocator target = new Euclidean2DLocator();
Assert.Throws<ArgumentException>(() => target.IsInRing(c, ring));
}
public void IsInRing_ThrowsArgumentExceptionIfCoordinateListDoesNotRepresentRing()
{
Coordinate c = new Coordinate(0, 0);
CoordinateList ring = new CoordinateList(new Coordinate[] { new Coordinate(0, 1), new Coordinate(1, 0), new Coordinate(1, 2) });
Euclidean2DLocator target = new Euclidean2DLocator();
Assert.Throws<ArgumentException>(() => target.IsInRing(c, ring));
}
public void IsInRing_ReturnsTrueIfPointIsInSimpleRing()
{
string wktRing = "linestring (-1 -1, 1 -1, 1 1, -1 1, -1 -1)";
LineString ring = WktReader.Parse<LineString>(wktRing);
Coordinate c = new Coordinate(0.5, 0.5);
Euclidean2DLocator target = new Euclidean2DLocator();
Assert.True(target.IsInRing(c, ring.Coordinates));
}
public void IsInRing_ReturnsTrueIfPointIsInConcaveRing()
{
string wktRing = "linestring (0 0, 2 0, 1 1, 1 2, 0 0)";
LineString ring = WktReader.Parse<LineString>(wktRing);
Coordinate c = new Coordinate(1, 0.5);
Euclidean2DLocator target = new Euclidean2DLocator();
Assert.True(target.IsInRing(c, ring.Coordinates));
}
public void IsInRing_ReturnsFalseIfPointIsOutsideRing()
{
string wktRing = "linestring (0 0, 2 0, 1 1, 1 2, 0 0)";
LineString ring = WktReader.Parse<LineString>(wktRing);
Coordinate c = new Coordinate(3, 0);
Euclidean2DLocator target = new Euclidean2DLocator();
Assert.False(target.IsInRing(c, ring.Coordinates));
}
public void IsInRing_ReturnsFalseIfPointIsInRingAndCYCoordinateIsSameAsVertexYCoordinate()
{
string wktRing = "linestring (-1 -1, 1 -1, 1 0.5, 1 1, -1 1, -1 -1)";
LineString ring = WktReader.Parse<LineString>(wktRing);
Coordinate c = new Coordinate(-2, 0.5);
Euclidean2DLocator target = new Euclidean2DLocator();
Assert.False(target.IsInRing(c, ring.Coordinates));
}