public void TestApplyDelete()
{
var p = ReadWkt <LineString>("LINESTRING(1 1, 2 2, 3 3, 4 4)");
var diff = new LineStringDiff()
{
Operation = Operation.Delete,
Index = 0,
Value = new List <PointDiff>()
{
new PointDiff()
{
Index = 0, Operation = Operation.Noop, Value = new CoordinateDelta()
{
X = 1, Y = 1
}
},
new PointDiff()
{
Index = 1, Operation = Operation.Noop, Value = new CoordinateDelta()
{
X = 2, Y = 2
}
},
new PointDiff()
{
Index = 2, Operation = Operation.Noop, Value = new CoordinateDelta()
{
X = 3, Y = 3
}
},
new PointDiff()
{
Index = 3, Operation = Operation.Noop, Value = new CoordinateDelta()
{
X = 4, Y = 4
}
}
}
};
var n = diff.Apply(p);
Assert.IsNull(n);
}
public void TestApplyCreate()
{
LineString p = null;
var diff = new LineStringDiff()
{
Operation = Operation.Insert,
Index = 0,
Value = new List <PointDiff>()
{
new PointDiff()
{
Index = 0, Operation = Operation.Insert, Value = new CoordinateDelta()
{
X = 1, Y = 1
}
},
new PointDiff()
{
Index = 1, Operation = Operation.Insert, Value = new CoordinateDelta()
{
X = 2, Y = 2
}
},
new PointDiff()
{
Index = 2, Operation = Operation.Insert, Value = new CoordinateDelta()
{
X = 3, Y = 3
}
}
}
};
var n = diff.Apply(p);
var p2 = ReadWkt <LineString>("LINESTRING(1 1, 2 2, 3 3)");
Assert.AreEqual(WriteWkt(p2), WriteWkt(n));
}
public void TestApplyModify()
{
var p = ReadWkt <LineString>("LINESTRING(1 1, 2 2, 3 3, 4 4)");
var diff = new LineStringDiff()
{
Operation = Operation.Modify,
Index = 0,
Value = new List <PointDiff>()
{
new PointDiff()
{
Index = 0, Operation = Operation.Insert, Value = new CoordinateDelta()
{
X = 0, Y = 0
}
},
new PointDiff()
{
Index = 1, Operation = Operation.Modify, Value = new CoordinateDelta()
{
X = 0.5, Y = 0.5
}
},
new PointDiff()
{
Index = 3, Operation = Operation.Delete, Value = new CoordinateDelta()
{
X = 4, Y = 4
}
}
}
};
var n = diff.Apply(p);
var p2 = ReadWkt <LineString>("LINESTRING(0 0, 1 1, 2.5 2.5, 3 3)");
Assert.AreEqual(WriteWkt(p2), WriteWkt(n));
}
private static void Write(LineStringDiff diff, BinaryWriter writer, bool hasZ) => WriteList(diff.Value.Cast <IDiff>().ToList(), writer, hasZ);
