ArcGIS.Core.Geometry Namespace

In This Topic

This namespace contains types for creating, modifying, deleting, and converting geometry objects.

Classes

	Class	Description
	AngularUnit	Represents an angular unit of measure used by a Geometry or SpatialReference, or in measurement conversion functions.
	AreaUnit	Represent an area unit of measure.
	BasicMaterial	A Material class describing basic graphic properties.
	CompositeGeographicTransformation	A composite geographic transformation class is an ordered list of GeographicTransformation classes. The geographic transformations are applied in the order they are stored.
	CompositeHVDatumTransformation	A composite hv (horizontal/vertical) datum transformation class is an ordered list of HVDatumTransformation classes. The hv datum transformations are applied in the order they are stored.
	CoordinateSystemListEntry	Provides the well-known ID (WKID), name and category (or region) of a particular coordinate system.
	CubicBezierBuilderEx	A builder for creating a CubicBezierSegment whose methods can be called on any thread.
	CubicBezierSegment	Represents a third degree cubic Bezier curve for use in a Multipart geometry. To create a cubic bezier segment use the CubicBezierBuilderEx object.
	Datum	Describes the horizontal datum of a geographic coordinate system. It is returned from SpatialReference.Datum.
	DatumTransformation	An abstract class for datum transformations. Currently, a datum transformation can be a GeographicTransformation, a CompositeGeographicTransformation, a HVDatumTransformation or a CompositeHVDatumTransformation.
	EllipticArcBuilderEx	A builder for creating an EllipticArcSegment whose methods can be called on any thread.
	EllipticArcSegment	Represents an elliptic arc segment for use in a Multipart geometry. To create an elliptic arc segment use the EllipticArcBuilderEx object.
	Envelope	An envelope is an axis-aligned box described by the coordinates of the lower left corner and the coordinates of the upper right corner. To create an envelope use the EnvelopeBuilderEx object.
	EnvelopeBuilderEx	A builder for creating an Envelope whose methods can be called on any thread.
	GeodesicEllipseParameter	Options for creating a geodesic ellipse with the GeometryEngine.GeodesicEllipse function.
	GeodesicSectorParameter	Options for creating a geodesic ellipse with the GeometryEngine.GeodesicSector function.
	GeographicTransformation	A geographic transformation is used when projecting geometries between two different geographic coordinate systems. A geographic transformation converts everything that needs to be changed including the units, prime meridian, and the ellipsoid. Every transformation is defined in a particular forward direction, say from GCS A to GCS B, but all are reversible. For example, a geographic transformation may be defined to convert from NAD27 to WGS84. If you are projecting from WGS84 to NAD27, you can use the reversed form of the transformation.
	GeographicTransformationListEntry	Provides the name, well-known ID (WKID), and WKIDs of the spatial references from which and to which the data will be projected.
	Geometry	An abstract base class for objects that define geometric shapes. Geometry objects can be used as geometry definitions for rendering data.
	GeometryBag	A class representing a GeometryBag. To create a geometry bag use the GeometryBagBuilderEx object.
	GeometryBagBuilderEx	Builder for creating a GeometryBag.
	GeometryBuilderEx	An abstract base class for geometry builders.
	GeometryEngine	Utility for performing geometric operations.
	GridUnit	Represents a grid unit for a geographic location.
	HVDatumTransformation	A hv (horizontal/vertical) datum transformation is used when projecting Z-Aware geometries between two different geographic coordinate systems and two different vertical coordinate systems. As with geographic transformations, a hv datum transformation converts everything that needs to be changed including the units, prime meridian, and the ellipsoid. In addition, a hv datum transformation transforms height. Every transformation is defined in a particular forward direction, but all are reversible. For example, suppose your Z-Aware geometry is in WGS84 with vertical coordinate system EGM2008_Geoid, and you want to project to NAD83_2011 with vertical coordinate system NAD83_2011. A hv datum transformation is defined to project your Z-Aware geometry from WGS84 with vertical coordinate system EGM2008_Geoid to NAD83_2011 with vertical coordinate system NAD83_2011. If you are projecting from NAD83_2011 with vertical coordinate system NAD83_2011 to WGS84 with vertical coordinate system EGM2008_Geoid to NAD83_2011, you can use the reversed form of the transformation.
	JPEGTexture	A TextureMap that contains a Jpeg image. Wrap a JPEGTexture within a TextureResource for use with a BasicMaterial when defining a Multipatch.
	LinearUnit	Represents a linear unit of measure used by a Geometry or SpatialReference, or in measurement conversion functions.
	LineBuilderEx	Builder for creating a LineSegment whose methods can be called on any thread.
	LineSegment	A class representing a straight line between a start and end point for use in a Multipart geometry. To create a line segment use the LineBuilderEx object.
	MapPoint	A MapPoint represents a single location in space. The location consists of X and Y values and optionally a Z and/or M value. To create a MapPoint use the MapPointBuilderEx object.
	MapPointBuilderEx	A builder for creating a MapPoint whose methods can be called on any thread.
	Material	An abstract Material instance.
	Multipart	An abstract base class for multipart geometry types.
	MultipartBuilderEx	An abstract base class for creating a Polyline or a Polygon.
	Multipatch	A class representing a multipatch.
	MultipatchBuilderEx	A builder for creating a Multipatch whose methods can be called on any thread.
	Multipoint	A Multipoint is a ordered collection of map points. To create a multipoint use the MultipointBuilderEx object.
	MultipointBuilderEx	A builder for creating a Multipoint whose methods can be called on any thread.
	Patch	A class to create a patch for a Multipatch. Use MultipatchBuilderEx to construct a Multipatch from patches.
	Polygon	A class representing a polygon.
	PolygonBuilderEx	A builder for creating a polygon whose methods can be called on any thread.
	Polyline	A class representing a polyline.
	PolylineBuilderEx	A builder for creating a polyline.
	ProjectionTransformation	A projection transformation describes parameters used to project geometries from one spatial reference to another. Used in the GeometryEngine.ProjectEx method.
	ProximityResult	Result from a GeometryEngine proximity operation such as GeometryEngine.NearestPoint or GeometryEngine.NearestVertex.
	ReadOnlyPartCollection	A Read-only collection of ReadOnlySegmentCollection parts used by Polyline and Polygon.
	ReadOnlyPointCollection	A read-only collection of MapPoints.
	ReadOnlySegmentCollection	A read only collection of Segment classes.
	Segment	Abstract class representing a start and end point and how they are connected. The most common is a straight line LineSegment.
	SegmentBuilderEx	Abstract base class for builders of all segment types to include: Line Bezier curve Elliptic Arc The SegmentBuilderEx methods can be called on any thread.
	SpatialReference	Class representing a spatial reference.
	SpatialReferenceBuilder	Builder for creating a SpatialReference.
	SpatialReferences	Contains some common spatial references.
	Texture	An abstract texture class.
	TextureMap	A Texture class that contains a raster image.
	TextureResource	A texture resource class that wraps a Texture instance.
	ToGeoCoordinateParameter	A class used as the parameter to MapPoint.ToGeoCoordinateString.
	UncompressedTexture	A TextureMap that contains a raw uncompressed raster image. Wrap an UncompressedTexture within a TextureResource for use with a BasicMaterial when defining a Multipatch.
	Unit	A common base class between all units, linear, area and angular units.

Interfaces

	Interface	Description
	IGeometryEngine	Geometry Engine interface. Performs geometric operations.

Structures

	Structure	Description
	Coordinate2D	A lightweight structure that holds X and Y values.
	Coordinate3D	A structure containing methods to manipulate 3D vertices and 3D vectors.

Enumerations

	Enumeration	Description
	ArcOrientation	Describes the orientation of an EllipticArcSegment. The orientation is defined as the direction between the 'from' and 'to' points of the arc.
	AsRatioOrLength	Describes how the distance along the curve is interpreted. See the GeometryEngine.SetMsAsDistance, GeometryEngine.QueryNormal, GeometryEngine.QueryPoint, GeometryEngine.GetSubCurve functions as examples.
	AttributeFlags	Flags used when creating a geometry in some GeometryBuilderEx methods specifying which attributes, Z, M, and ID, the newly created geometry should have. Use bitwise OR to specify more than one attribute. For example, to specify that the geometry should have Z and M-values, specify AttributeFlags.HasZ \| AttributeFlags.HasM.
	ClothoidCreateMethod	The method of creation for a clothoid. Used with PolylineBuilderEx.CreatePolyline.
	CoordinateSystemFilter	Coordinate System Filter. Use a filter as input to GeometryEngine.GetPredefinedCoordinateSystemList. Can be used as a bit mask to get multiple coordinate system types in one list.
	CurveDensifyMethod	Methods to specify curve densification. Used with PolylineBuilderEx.CreatePolyline, GeometryEngine.ConstructGeodeticLineFromPoints, and GeometryEngine.ConstructGeodeticLineFromDistance
	EsriShapeExportFlags	Specifies the flags that control the behavior of the GeometryEngine.ExportToEsriShape and GeometryEngine.ExportToEsriShape methods.
	EsriShapeImportFlags	Specifies the flags that control the behavior of the GeometryEngine.ImportFromEsriShape method.
	ExtendFlags	Extend flag options for use with the GeometryEngine.Extend function.
	FromGeoCoordinateMode	Determines the format of the coordinate description. See MapPointBuilderEx.FromGeoCoordinateString.
	GeoCoordinateType	Options for representing different coordinate string notations. Used with the ToGeoCoordinateParameter class as part of the MapPoint.ToGeoCoordinateString and MapPointBuilderEx.FromGeoCoordinateString functions.
	GeodeticCurveType	Curve type options for use with the geodetic functions. See GeometryEngine.GeodeticDensifyByLength, GeometryEngine.GeodeticDensifyByDeviation or GeometryEngine.GeodeticMove.
	GeometryDimensionType	Describes the dimensionality of the geometry object. Use with GeometryEngine.Intersection .
	GeometryType	Describes the different types of geometry.
	JsonExportFlags	Specifies the flags that control the behavior of the GeometryEngine.ExportToJson method.
	JsonImportFlags	Specifies the flags that control the behavior of the GeometryEngine.ImportFromJson method.
	LeftOrRightSide	When used in GeometryEngine.QueryPointAndDistance or GeometryEngine.QueryPointAndDistance, describes whether the input point is on the left or right side of the curve. When used in GeometryEngine.SideBuffer or GeometryEngine.SideBuffer, describes which side of the input geometry to construct the buffer. The direction of the curve determines the left and right sides.
	LineCapType	Defines the shape of the line ending for polylines and points (square or round). See GeometryEngine.GraphicBuffer, GeometryEngine.GraphicBuffer, GeometryEngine.SideBuffer, and GeometryEngine.SideBuffer
	LineJoinType	Defines the connection of the buffer at corners. See GeometryEngine.GraphicBuffer and GeometryEngine.GraphicBuffer.
	MinorOrMajor	Indicates whether the arc is a minor or major arc. An arc is minor if the central angle is less than PI radians (180 degrees) and major otherwise. Used with EllipticArcBuilderEx.CreateCircularArc.
	MonotonicType	Describes if values on a geometry are all ascending, all descending, or neither. See the GeometryEngine.GetMMonotonic function.
	MultipatchConstructType	Describes the set of predetermined multipatch forms that can be constructed.
	OffsetType	Offset options for use with the GeometryEngine.Offset function.
	PatchType	Describes the type of the patch.
	SegmentExtensionType	Describes if, how and where to extend segments. See the GeometryEngine.QueryPointAndDistance function.
	SegmentType	Describes the type of line segment. See the Segment.SegmentType property.
	SimplifyType	Options for use with the GeometryEngine.SimplifyPolyline functions.
	SliceType	Options for use with the GeometryEngine.SlicePolygonIntoEqualParts function.
	TextureCompressionType	Describes the compression type of the material texture.
	ToGeoCoordinateMode	Determines how to handle the geographic coordinate system of the spatial reference. Certain older geographic coordinate systems will cause one of the letters of the string to be shifted. This process makes it easier to identify coordinates that are based on a non-WGS84 datum.
	UnitType	Describes the different types of units.
	UnitTypeCode	Available unit codes
	UpdateMMethod	The method to use when updating M values. See GeometryEngine.CalibrateByMs
	WkbExportFlags	Specifies the flags that control the behavior of the GeometryEngine.ExportToWKB and GeometryEngine.ExportToWKB methods.
	WkbImportFlags	Specifies the flags that control the behavior of the GeometryEngine.ImportFromWKB method.
	WktExportFlags	Specifies the flags that control the behavior of the GeometryEngine.ExportToWKT method.
	WktImportFlags	Specifies the flags that control the behavior of the GeometryEngine.ImportFromWKT method.

Reference

ArcGIS.Core Assembly

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