Constant	Value	Description
esriGeometryNull	0	A geometry of unknown type.
esriGeometryPoint	1	A single zero dimensional geometry.
esriGeometryMultipoint	2	An ordered collection of points.
esriGeometryLine	13	A straight line segment between two points.
esriGeometryCircularArc	14	A portion of the boundary of a circle.
esriGeometryEllipticArc	16	A portion of the boundary of an ellipse.
esriGeometryBezier3Curve	15	A third degree bezier curve (four control points).
esriGeometryPath	6	A connected sequence of segments.
esriGeometryPolyline	3	An ordered collection of paths.
esriGeometryRing	11	An area bounded by one closed path.
esriGeometryPolygon	4	A collection of rings ordered by their containment relationship.
esriGeometryEnvelope	5	A rectangle indicating the spatial extent of another geometry.
esriGeometryAny	7	Any of the geometry coclass types.
esriGeometryBag	17	A collection of geometries of arbitrary type.
esriGeometryMultiPatch	9	A collection of surface patches.
esriGeometryTriangleStrip	18	A surface patch of triangles defined by three consecutive points.
esriGeometryTriangleFan	19	A surface patch of triangles defined by the first point and two consecutive points.
esriGeometryRay	20	An infinite, one-directional line extending from an origin point.
esriGeometrySphere	21	A complete 3 dimensional sphere.
esriGeometryTriangles	22	A surface patch of triangles defined by non-overlapping sets of three consecutive points each.

esriGeometryNull          = Unknown type of geometry
esriGeometryPoint         = PointesriGeometryMultipoint    = Multipoint (Collection of Points)
esriGeometryLine          = Line         (Segment)
esriGeometryCircularArc   = CircularArc  (Segment)
esriGeometryEllipticArc   = EllipticArc  (Segment)
esriGeometryBezier3Curve  = BezierCurve  (Segment)
esriGeometryPath          = PathesriGeometryPolyline      = Polyline (Collection of Paths)
esriGeometryRing          = Ring (Ring / SurfacePatch)
esriGeometryPolygon       = Polygon  (Collection of Rings)
esriGeometryEnvelope      = EnvelopeesriGeometryAny           = Any valid geometry
esriGeometryBag           = GeometryBag (Collection of Geometries)
esriGeometryMultiPatch    = MultiPatch  (Collection of SurfacePatches)
esriGeometryTriangleStrip = TriangleStrip (SurfacePatch)
esriGeometryTriangeFan    = TriangleFan   (SurfacePatch)
esriGeometryRay           = RayesriGeometrySphere        = SphereesriGeometryTriangles        = Triangles (SurfacePatch)

[C#]

publicstaticvoid GeometryToString(IGeometry geometry)

{

if (geometry == null)

{

Trace.WriteLine("Geometry Is Null.");

}

else

{

Trace.WriteLine("geometry.GeometryType = " + geometry.GeometryType);

if (geometry.IsEmpty)

{

Trace.WriteLine("Geometry Is Empty.");

}

else

{

switch (geometry.GeometryType)

{

caseesriGeometryType.esriGeometryPoint:

IPoint point = geometry asIPoint;

Trace.WriteLine("point = " + PointToString(point));

break;

caseesriGeometryType.esriGeometryRay:

IRay ray = geometry asIRay;

Trace.WriteLine("ray.Origin = " + PointToString(ray.Origin));

Trace.WriteLine("ray.Vector.XComponent = " + ray.Vector.XComponent);

Trace.WriteLine("ray.Vector.YComponent = " + ray.Vector.YComponent);

Trace.WriteLine("ray.Vector.ZComponent = " + ray.Vector.ZComponent);

Trace.WriteLine("ray.Vector.Magnitude = " + ray.Vector.Magnitude);

break;

caseesriGeometryType.esriGeometryLine:

ILine line = geometry asILine;

Trace.WriteLine("line.FromPoint = " + PointToString(line.FromPoint));

Trace.WriteLine("line.ToPoint = " + PointToString(line.ToPoint));

break;

caseesriGeometryType.esriGeometryEnvelope:

IEnvelope envelope = geometry asIEnvelope;

Trace.WriteLine("envelope.XMin = " + envelope.XMin);

Trace.WriteLine("envelope.XMax = " + envelope.XMax);

Trace.WriteLine("envelope.YMin = " + envelope.YMin);

Trace.WriteLine("envelope.YMax = " + envelope.YMax);

Trace.WriteLine("envelope.ZMin = " + envelope.ZMin);

Trace.WriteLine("envelope.ZMax = " + envelope.ZMax);

break;

caseesriGeometryType.esriGeometryPolyline:

IGeometryCollection geometryCollection = geometry asIGeometryCollection;

Trace.WriteLine("polyline.PathCount = " + geometryCollection.GeometryCount);

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

{

Trace.WriteLine("polyline.Path[" + i + "]");

IGeometry pathGeometry = geometryCollection.get_Geometry(i);

IPointCollection pathPointCollection = pathGeometry asIPointCollection;

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

{

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

}

}

break;

caseesriGeometryType.esriGeometryPolygon:

IPolygon4 polygon = geometry asIPolygon4;

IGeometryBag exteriorRingGeometryBag = polygon.ExteriorRingBag;

IGeometryCollection exteriorRingGeometryCollection = exteriorRingGeometryBag asIGeometryCollection;

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 asIPointCollection;

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

{

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

}

IGeometryBag interiorRingGeometryBag = polygon.get_InteriorRingBag(exteriorRingGeometry asIRing);

IGeometryCollection interiorRingGeometryCollection = interiorRingGeometryBag asIGeometryCollection;

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 asIPointCollection;

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

{

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

}

}

}

break;

caseesriGeometryType.esriGeometryMultiPatch:

IGeometryCollection multiPatchGeometryCollection = geometry asIGeometryCollection;

Trace.WriteLine("multiPatch.PartCount = " + multiPatchGeometryCollection.GeometryCount);

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

{

IGeometry partGeometry = multiPatchGeometryCollection.get_Geometry(i);

Trace.WriteLine("multiPatch.Part[" + i + "].geometryType = " + partGeometry.GeometryType);

IPointCollection partPointCollection = partGeometry asIPointCollection;

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

{

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

}

}

break;

default:

IPointCollection pointCollection = geometry asIPointCollection;

for (int i = 0; i < pointCollection.PointCount; i++)

{

Trace.WriteLine("Point[" + i + "] = " + PointToString(pointCollection.get_Point(i)));

}

break;

}

}

}

Trace.WriteLine(null);

}

privatestaticstring PointToString(IPoint point)

{

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