private static void AreEqual(XmlNode polygonNode, Polygon polygon)
{
var lineNodes = polygonNode.SelectNodes("LSG");
var exteriorNode = GetExteriorNode(lineNodes);
var interiorNodes = GetInteriorNodes(lineNodes);
var exteriorRing = polygon.ExteriorRing;
var interiorRings = polygon.InteriorRings;
RingAssert.AreEqual(exteriorNode, exteriorRing);
RingAssert.AreEqual(interiorNodes, interiorRings);
}
public static void WritePolygon(XmlWriter writer, Polygon polygon)
{
if (polygon.ExteriorRing == null)
return;
writer.WriteStartElement("PLN");
writer.WriteXmlAttribute("A", "1");
WriteRing(writer, polygon.ExteriorRing, true);
if (polygon.InteriorRings != null)
{
foreach (var ring in polygon.InteriorRings)
{
WriteRing(writer, ring, false);
}
}
writer.WriteEndElement();
}
private static Polygon LoadPolygon(XmlNode polygonNode)
{
var polygon = new Polygon { InteriorRings = new List<LinearRing>() };
var lineNodes = polygonNode.SelectNodes("LSG");
foreach (XmlNode lineNode in lineNodes)
{
bool exteriorRing;
var line = LoadRing(lineNode, out exteriorRing);
if (line == null)
return null;
if (exteriorRing)
polygon.ExteriorRing = line;
else
polygon.InteriorRings.Add(line);
}
return polygon;
}
public void GivenPolygonWhenCreatedThenTypeShouldBePolygon()
{
var shape = new Polygon();
Assert.AreEqual(ShapeTypeEnum.Polygon, shape.Type);
}
