sb.Append("}");

//添加Geometry

sb.Append("}");

return sb.ToString();

}

下面是获取面的内环和外环的坐标

public 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 string PointToString(IPoint point)

{

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

}

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