Provides access to members that identify third degree bezier curve segments and defines their properties.
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
Members

Name 
Description 

Degree 
The degree of the Bezier curve. For third degree Beziers, this is always 3. 

Dimension 
The topological dimension of this geometry. 

Envelope 
Creates a copy of this geometry's envelope and returns it. 

FromPoint 
The 'from' point of the curve. 

GeometryType 
The type of this geometry. 

GeoNormalize 
Shifts longitudes, if need be, into a continuous range of 360 degrees. 

GeoNormalizeFromLongitude 
Normalizes longitudes into a continuous range containing the longitude. This method is obsolete. 

GetSubcurve 
Extracts a portion of this curve into a new curve. 

IsClosed 
Indicates if 'from' and 'to' points (of each part) are identical. 

IsEmpty 
Indicates whether this geometry contains any points. 

IsLine 
Indicates if the curve degenerated to a line. 

Length 
The length of the curve. 

Project 
Projects this geometry into a new spatial reference. 

PutCoord 
Sets the specified (0 <= index < 4) control point of this Bezier curve. 

PutCoords 
Sets this Bezier curve's control points from an array of between 1 to 4 input points. 

PutWKSCoords 
Sets this Bezier curve's control points from the array of 4 input point structures. 

QueryChordLengthTangentAtFrom 
Returns tangent vector at 'from' point, based on chord length parametrization; and whether it has been set by user or by smoothing process. 

QueryChordLengthTangentAtTo 
Returns tangent vector at 'to' point, based on chord length parametrization; and whether it has been set by user or by smoothing process. 

QueryCoord 
Copies the specified control point of this Bezier curve into the input point. 

QueryCoords 
Copies this Bezier curve's control points into the array of 4 existing points. 

QueryEnvelope 
Copies this geometry's envelope properties into the specified envelope. 

QueryFromPoint 
Copies this curve's 'from' point to the input point. 

QueryInflectionPoint 
Finds inflection point; sets it empty if none exists. 

QueryNormal 
Constructs a line normal to a curve from a point at a specified distance along the curve. 

QueryPoint 
Copies to outPoint the properties of a point on the curve at a specified distance from the beginning of the curve. 

QueryPointAndDistance 
Finds the point on the curve closest to inPoint, then copies that point to outPoint; optionally calculates related items. 

QueryTangent 
Constructs a line tangent to a curve from a point at a specified distance along the curve. 

QueryToPoint 
Copies the curve's 'to' point into the input point. 

QueryWKSCoords 
Copies this Bezier curve's control points into the array of 4 existing point structures. 

ReverseOrientation 
Reverses the parameterization of the curve ('from' point becomes 'to' point, first segment becomes last segment, etc). 

SetChordLengthTangentAtFrom 
Establishes tangent vector at 'from' point, based on chord length parametrization; and sets flag whether it has been set by user or by smoothing process. 

SetChordLengthTangentAtTo 
Establishes tangent vector at 'to' point, based on chord length parametrization; and sets flag whether it has been set by user or by smoothing process. 

SetEmpty 
Removes all points from this geometry. 

SnapToSpatialReference 
Moves points of this geometry so that they can be represented in the precision of the geometry's associated spatial reference system. 

SpatialReference 
The spatial reference associated with this geometry. 

ToPoint 
The 'to' point of the curve. 
Inherited Interfaces
Interfaces 
Description 
IBezierCurve 
Provides access to members that identify third degree bezier curve segments and defines their properties. 
ICurve 
Provides access to properties and methods of all 1 dimensional curves (polylines, segments, boundaries of polygons, etc.). 
IGeometry 
Provides access to members that describe properties and behavior of all geometric objects. 
Classes that implement IBezierCurve2
Classes 
Description 
BezierCurve 
A cubic Bezier curve defined between two points; optionally has measure, height and ID attributes at each endpoint. 