ArcObjects Library Reference (Geometry)

MultiPatch CoClass

A collection of surface patches.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Extended Error Information

Use the ISupportErrorInfo method InterfaceSupportsErrorInfo to determine if the object supports extended error information. If the object supports extended error info, VC++ developers should use the OLE/COM IErrorInfo interface to access the ErrorInfo object. Visual Basic developers should use the global error object Err to retrieve this extended error information.

Interfaces

Interfaces	Description
IArea	Provides access to members that return properties common to rings and polygons.
IArea3D	Provides access to members that return properties common to MultiPatches.
IClone (esriSystem)	Provides access to members that control cloning of objects.
IConstructMultiPatch	Provides access to members that can be used to construct MultiPatches.
IGeneralMultiPatchInfo	Interface to get infomation of a GeneralMultiPatch.
IGeometry	Provides access to members that describe properties and behavior of all geometric objects.
IGeometry2	Provides access to members that extend the IGeometry interface with a more sophisticated projection method.
IGeometry3	Provides rapid access to a geometry's extent in the x-y plane.
IGeometry4	Provides access to methods that indicate if a geometry has been changed (edited, projected, etc).
IGeometry5	Provides access to members that extend the IGeometry interface with a more sophisticated projection method.
IGeometryCollection	Provides access to members that can be used for accessing, adding and removing individual geometries of a multi-part geometry (Multipoint, Polyline, Polygon, MultiPatch, and GeometryBag).
IHitTest	Provides access to members that locate a part of a geometry closest to a point.
IMAware	Indicator interface that identifies geometric objects that can have persistent M values attached to their vertices.
IMCollection	Provides access to members that control operations on M-aware multipoints, polylines, polygons and multipatches.
IMSnap	Provides access to a method that snaps ms of the geometry to the precision of the spatial reference associated with the geometry.
IMultiPatch	Provides access to members that identify a MultiPatch and permit controlled access to its parts.
IPersist	Defines the single method GetClassID, which is designed to supply the CLSID of an object that can be stored persistently in the system. IPersist is the base interface for three other interfaces: IPersistStorage, IPersistStream, and IPersistFile.
IPersistStream (esriSystem)
IPointCollection	Provides access to members that manipulate the points of a Multipoint, Path, Ring, Polyline, Polygon, TriangleFan, TriangleStrip, or MultiPatch.
IPointCollection3	Provides access to members that manipulate the points of a Multipoint.
IPointCollection4	Provides access to members that manipulate the points of a Multipoint, Path, Ring, Polyline, Polygon, TriangleFan, TriangleStrip, or MultiPatch.
IPointIDAware	Indicator interface that identifies geometries that can have persistent point ID values attached to coordinates.
IProximityOperator	Provides access to members that find the 2D distance between two geometries.
IProximityOperator3D	Provides access to members that find the 3D distance between two geometries with Zs.
IRelationalOperator	Provides access to members that determine if a certain spatial relationship exists between two geometries.
IRelationalOperator2	Additional relational functions.
IRelationalOperator3D	Provides access to members that determine if a certain spatial relationship exists between two geometries with Zs.
IRelationalOperator3D2	Provides access to members that determine if a certain spatial relationship exists between two geometries with Zs.
ISupportErrorInfo	Indicates whether a specific interface can return Automation error objects.
ITopologicalOperator	Provides access to members for constructing new geometries based upon topological relationships between existing geometries.
ITopologicalOperator2	Provides access to members that extend the ITopologicalOperator interface.
ITopologicalOperator3	Provides additional information on non-simple geometries.
ITransform2D	Provides access to methods for transforming geometries using either specific parameters or arbitrary transformation objects (affine transformations, geographic transformations, etc.).
ITransform3D	Provides access to methods for transforming 3D geometries using either specific parameters or arbitrary transformation objects.
IVolume	Provides access to members that return properties common to MultiPatches.
IXMLSerialize (esriSystem)	Provides access to members that XML serialize and deserialize an object to/from XML.
IZAware	Indicator interface that identifies geometries that can have persistent Z values attached to their vertices.
IZCollection	Provides access to operations on Z-aware geometries.

[C#]

private static object _missing=Type.Missing;

public static IGeometry GetMultiPatchGeometry()

{

//Composite: House Composed Of 7 Ring, 1 TriangleStrip, And 1 Triangles Parts

IGeometryCollection multiPatchGeometryCollection=new MultiPatchClass();

IMultiPatch multiPatch=multiPatchGeometryCollection as IMultiPatch;

//Base (Exterior Ring)

IPointCollection basePointCollection=new RingClass();

basePointCollection.AddPoint(ConstructPoint3D(5, 4, 0), ref _missing, ref _missing);

basePointCollection.AddPoint(ConstructPoint3D(-5, 4, 0), ref _missing, ref _missing);

basePointCollection.AddPoint(ConstructPoint3D(-5, -4, 0), ref _missing, ref _missing);

basePointCollection.AddPoint(ConstructPoint3D(5, -4, 0), ref _missing, ref _missing);

basePointCollection.AddPoint(basePointCollection.get_Point(0), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(basePointCollection as IGeometry, ref _missing, ref _missing);

multiPatch.PutRingType(basePointCollection as IRing, esriMultiPatchRingType.esriMultiPatchOuterRing);

//Front With Cutaway For Door (Exterior Ring)

IPointCollection frontPointCollection=new RingClass();

frontPointCollection.AddPoint(ConstructPoint3D(5, 4, 6), ref _missing, ref _missing);

frontPointCollection.AddPoint(ConstructPoint3D(5, 4, 0), ref _missing, ref _missing);

frontPointCollection.AddPoint(ConstructPoint3D(5, 1, 0), ref _missing, ref _missing);

frontPointCollection.AddPoint(ConstructPoint3D(5, 1, 4), ref _missing, ref _missing);

frontPointCollection.AddPoint(ConstructPoint3D(5, -1, 4), ref _missing, ref _missing);

frontPointCollection.AddPoint(ConstructPoint3D(5, -1, 0), ref _missing, ref _missing);

frontPointCollection.AddPoint(ConstructPoint3D(5, -4, 0), ref _missing, ref _missing);

frontPointCollection.AddPoint(ConstructPoint3D(5, -4, 6), ref _missing, ref _missing);

frontPointCollection.AddPoint(frontPointCollection.get_Point(0), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(frontPointCollection as IGeometry, ref _missing, ref _missing);

multiPatch.PutRingType(frontPointCollection as IRing, esriMultiPatchRingType.esriMultiPatchOuterRing);

//Back (Exterior Ring)

IPointCollection backPointCollection=new RingClass();

backPointCollection.AddPoint(ConstructPoint3D(-5, 4, 6), ref _missing, ref _missing);

backPointCollection.AddPoint(ConstructPoint3D(-5, -4, 6), ref _missing, ref _missing);

backPointCollection.AddPoint(ConstructPoint3D(-5, -4, 0), ref _missing, ref _missing);

backPointCollection.AddPoint(ConstructPoint3D(-5, 4, 0), ref _missing, ref _missing);

backPointCollection.AddPoint(backPointCollection.get_Point(0), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(backPointCollection as IGeometry, ref _missing, ref _missing);

multiPatch.PutRingType(backPointCollection as IRing, esriMultiPatchRingType.esriMultiPatchOuterRing);

//Right Side (Ring Group)

//Exterior Ring

IPointCollection rightSideExteriorPointCollection=new RingClass();

rightSideExteriorPointCollection.AddPoint(ConstructPoint3D(5, 4, 6), ref _missing, ref _missing);

rightSideExteriorPointCollection.AddPoint(ConstructPoint3D(-5, 4, 6), ref _missing, ref _missing);

rightSideExteriorPointCollection.AddPoint(ConstructPoint3D(-5, 4, 0), ref _missing, ref _missing);

rightSideExteriorPointCollection.AddPoint(ConstructPoint3D(5, 4, 0), ref _missing, ref _missing);

rightSideExteriorPointCollection.AddPoint(rightSideExteriorPointCollection.get_Point(0), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(rightSideExteriorPointCollection as IGeometry, ref _missing, ref _missing);

multiPatch.PutRingType(rightSideExteriorPointCollection as IRing, esriMultiPatchRingType.esriMultiPatchOuterRing);

//Interior Ring

IPointCollection rightSideInteriorPointCollection=new RingClass();

rightSideInteriorPointCollection.AddPoint(ConstructPoint3D(1, 4, 4), ref _missing, ref _missing);

rightSideInteriorPointCollection.AddPoint(ConstructPoint3D(1, 4, 2), ref _missing, ref _missing);

rightSideInteriorPointCollection.AddPoint(ConstructPoint3D(-1, 4, 2), ref _missing, ref _missing);

rightSideInteriorPointCollection.AddPoint(ConstructPoint3D(-1, 4, 4), ref _missing, ref _missing);

rightSideInteriorPointCollection.AddPoint(rightSideInteriorPointCollection.get_Point(0), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(rightSideInteriorPointCollection as IGeometry, ref _missing, ref _missing);

multiPatch.PutRingType(rightSideInteriorPointCollection as IRing, esriMultiPatchRingType.esriMultiPatchInnerRing);

//Left Side (Ring Group)

//Exterior Ring

IPointCollection leftSideExteriorPointCollection=new RingClass();

leftSideExteriorPointCollection.AddPoint(ConstructPoint3D(5, -4, 6), ref _missing, ref _missing);

leftSideExteriorPointCollection.AddPoint(ConstructPoint3D(5, -4, 0), ref _missing, ref _missing);

leftSideExteriorPointCollection.AddPoint(ConstructPoint3D(-5, -4, 0), ref _missing, ref _missing);

leftSideExteriorPointCollection.AddPoint(ConstructPoint3D(-5, -4, 6), ref _missing, ref _missing);

leftSideExteriorPointCollection.AddPoint(leftSideExteriorPointCollection.get_Point(0), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(leftSideExteriorPointCollection as IGeometry, ref _missing, ref _missing);

multiPatch.PutRingType(leftSideExteriorPointCollection as IRing, esriMultiPatchRingType.esriMultiPatchOuterRing);

//Interior Ring

IPointCollection leftSideInteriorPointCollection=new RingClass();

leftSideInteriorPointCollection.AddPoint(ConstructPoint3D(1, -4, 4), ref _missing, ref _missing);

leftSideInteriorPointCollection.AddPoint(ConstructPoint3D(-1, -4, 4), ref _missing, ref _missing);

leftSideInteriorPointCollection.AddPoint(ConstructPoint3D(-1, -4, 2), ref _missing, ref _missing);

leftSideInteriorPointCollection.AddPoint(ConstructPoint3D(1, -4, 2), ref _missing, ref _missing);

leftSideInteriorPointCollection.AddPoint(leftSideInteriorPointCollection.get_Point(0), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(leftSideInteriorPointCollection as IGeometry, ref _missing, ref _missing);

multiPatch.PutRingType(leftSideInteriorPointCollection as IRing, esriMultiPatchRingType.esriMultiPatchInnerRing);

//Roof

IPointCollection roofPointCollection=new TriangleStripClass();

roofPointCollection.AddPoint(ConstructPoint3D(-5, 4, 6), ref _missing, ref _missing);

roofPointCollection.AddPoint(ConstructPoint3D(5, 4, 6), ref _missing, ref _missing);

roofPointCollection.AddPoint(ConstructPoint3D(-5, 0, 9), ref _missing, ref _missing);

roofPointCollection.AddPoint(ConstructPoint3D(5, 0, 9), ref _missing, ref _missing);

roofPointCollection.AddPoint(ConstructPoint3D(-5, -4, 6), ref _missing, ref _missing);

roofPointCollection.AddPoint(ConstructPoint3D(5, -4, 6), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(roofPointCollection as IGeometry, ref _missing, ref _missing);

//Triangular Area Between Roof And Front/Back

IPointCollection triangularAreaPointCollection=new TrianglesClass();

//Area Between Roof And Front

triangularAreaPointCollection.AddPoint(ConstructPoint3D(5, 0, 9), ref _missing, ref _missing);

triangularAreaPointCollection.AddPoint(ConstructPoint3D(5, 4, 6), ref _missing, ref _missing);

triangularAreaPointCollection.AddPoint(ConstructPoint3D(5, -4, 6), ref _missing, ref _missing);

//Area Between Roof And Back

triangularAreaPointCollection.AddPoint(ConstructPoint3D(-5, 0, 9), ref _missing, ref _missing);

triangularAreaPointCollection.AddPoint(ConstructPoint3D(-5, -4, 6), ref _missing, ref _missing);

triangularAreaPointCollection.AddPoint(ConstructPoint3D(-5, 4, 6), ref _missing, ref _missing);

multiPatchGeometryCollection.AddGeometry(triangularAreaPointCollection as IGeometry, ref _missing, ref _missing);

return multiPatchGeometryCollection as IGeometry;

}

private static IPoint ConstructPoint3D(double x, double y, double z)

{

IPoint point=ConstructPoint2D(x, y);

point.Z=z;

return point;

}

private static IPoint ConstructPoint2D(double x, double y)

{

IPoint point = new PointClass();

point.PutCoords(x, y);

return point;

}