ArcGIS Developer Help

IPolygon4.InteriorRingBag Property

Creates and returns a geometry bag that contains references to all rings that are interior to the specified exterior ring.

[Visual Basic .NET]
Public Function get_InteriorRingBag ( _
    ByVal exteriorRing As IRing _
) As IGeometryBag

[C#]
public IGeometryBag get_InteriorRingBag (
    IRing exteriorRing
);

[C++]
HRESULT get_InteriorRingBag(
  IRing* exteriorRing,
  IGeometryBag** ringBag
);

[C++]
Parameters
exteriorRing 

  exteriorRing is a parameter of type IRing*
ringBag [out, retval]

  ringBag is a parameter of type IGeometryBag**

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

[C#]

public static void PolygonToString(IPolygon4 polygon)

{

IGeometryBag exteriorRingGeometryBag = polygon.ExteriorRingBag;

IGeometryCollection exteriorRingGeometryCollection = exteriorRingGeometryBag as IGeometryCollection;

Trace.WriteLine("polygon.ExteriorRingCount = " + exteriorRingGeometryCollection.GeometryCount);

for (int i = 0; i < exteriorRingGeometryCollection.GeometryCount; i++)

{

Trace.WriteLine("polygon.ExteriorRing[" + i + "]");

IGeometry exteriorRingGeometry = exteriorRingGeometryCollection.get_Geometry(i);

IPointCollection exteriorRingPointCollection = exteriorRingGeometry as IPointCollection;

for (int j = 0; j < exteriorRingPointCollection.PointCount; j++)

{

Trace.WriteLine("Point[" + j + "] = " + PointToString(exteriorRingPointCollection.get_Point(j)));

}

IGeometryBag interiorRingGeometryBag = polygon.get_InteriorRingBag(exteriorRingGeometry as IRing);

IGeometryCollection interiorRingGeometryCollection = interiorRingGeometryBag as IGeometryCollection;

Trace.WriteLine("polygon.InteriorRingCount[exteriorRing" + i + "] = " + interiorRingGeometryCollection.GeometryCount);

for (int k = 0; k < interiorRingGeometryCollection.GeometryCount; k++)

{

Trace.WriteLine("polygon.InteriorRing[" + k + "]");

IGeometry interiorRingGeometry = interiorRingGeometryCollection.get_Geometry(k);

IPointCollection interiorRingPointCollection = interiorRingGeometry as IPointCollection;

for (int m = 0; m < interiorRingPointCollection.PointCount; m++)

{

Trace.WriteLine("Point[" + m + "] = " + PointToString(interiorRingPointCollection.get_Point(m)));

}

private static string PointToString(IPoint point)

{

return (point.X + ", " + point.Y + ", " + point.Z);

}