public static GeoAPI.Geometries.ILinearRing ConvertTo(ESRI.ArcGIS.Geometry.IRing ring)
{
ESRI.ArcGIS.Geometry.IPoint fromToPoint = ring.FromPoint;
List <GeoAPI.Geometries.ICoordinate> list = new List <GeoAPI.Geometries.ICoordinate>();
list.Add(ConvertTo(fromToPoint));
ISegmentCollection segmentCollection = ring as ISegmentCollection;
if (segmentCollection != null)
{
int count = segmentCollection.SegmentCount;
for (int i = 0; i < count; i++)
{
ISegment segment = segmentCollection.get_Segment(i);
if (!(segment is ILine))
{
throw new ApplicationException("Curves are not supported.");
}
list.Add(ConvertTo(segment.ToPoint));
}
}
else
{
throw new ApplicationException("No segments found in the ring geometry.");
}
list.Add(ConvertTo(fromToPoint));
list.Reverse();
return(new GisSharpBlog.NetTopologySuite.Geometries.LinearRing(list.ToArray()));
}
//获得一个环的形状
private static ESRI.ArcGIS.Geometry.Polygon MakePolygonFromRing(ESRI.ArcGIS.Geometry.IRing pRing)
{
ESRI.ArcGIS.Geometry.Polygon pResPolygon = null;
ESRI.ArcGIS.Geometry.IPolygon pPolygon = null;
try
{
pPolygon = new ESRI.ArcGIS.Geometry.PolygonClass();
ESRI.ArcGIS.Geometry.IGeometryCollection pGeometryCollection;
pGeometryCollection = pPolygon as ESRI.ArcGIS.Geometry.IGeometryCollection;
object missing = Type.Missing;
pGeometryCollection.AddGeometry(pRing, ref missing, ref missing);
pResPolygon = pPolygon as ESRI.ArcGIS.Geometry.Polygon;
return(pResPolygon);
}
catch (Exception err)
{
pResPolygon = null;
pPolygon = null;
}
return(null);
}