ILine3 Interface

Provides access to members that identify a straight line segment and defines its properties.

Members

	Name	Description
	Angle	The angle between this line and the positive x-axis.
	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 This method is obsolete.
	GetDistanceAtVertexAttribute3D	Gets the distance corresponding to the attribute value along the line.
	GetSubcurve	Extracts a portion of this curve into a new curve.
	GetVertexAttributeAtDistance3D	Gets the attribute value corresponding to the 3D distance along the line.
	IsClosed	Indicates if 'from' and 'to' points (of each part) are identical.
	IsEmpty	Indicates whether this geometry contains any points.
	Length	The length of the curve.
	Project	Projects this geometry into a new spatial reference.
	PutCoords	Sets this line's endpoints to be 'from' and 'to'.
	PutWKSCoords	From and To become the new endpoints of this line. Any existing attributes are deleted.
	QueryCoords	Copies the endpoints of this line to 'from' and 'to'.
	QueryEnvelope	Copies this geometry's envelope properties into the specified envelope.
	QueryFromPoint	Copies this curve's 'from' point to the input point.
	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	Returns the (x,y) coordinates of this line's endpoints.
	ReverseOrientation	Reverses the parameterization of the curve ('from' point becomes 'to' point, first segment becomes last segment, etc).
	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.
	SplitAtDistance3D	Split segment at specified distance.
	ToPoint	The 'to' point of the curve.

ILine3.GetDistanceAtVertexAttribute3D Method

Gets the distance corresponding to the attribute value along the line.

Public Function GetDistanceAtVertexAttribute3D ( _
    ByVal attributeType As esriGeometryAttributes, _
    ByVal attributeValue As Double, _
    ByVal asRatio As Boolean _
) As Double

public double GetDistanceAtVertexAttribute3D (
    esriGeometryAttributes attributeType,
    double attributeValue,
    bool asRatio
);

ILine3.GetVertexAttributeAtDistance3D Method

Gets the attribute value corresponding to the 3D distance along the line.

Public Function GetVertexAttributeAtDistance3D ( _
    ByVal attributeType As esriGeometryAttributes, _
    ByVal distance As Double, _
    ByVal asRatio As Boolean _
) As Double

public double GetVertexAttributeAtDistance3D (
    esriGeometryAttributes attributeType,
    double distance,
    bool asRatio
);

ILine3.SplitAtDistance3D Method

Split segment at specified distance.

Public Sub SplitAtDistance3D ( _
    ByVal distances As Double, _
    ByVal asRatio As Boolean, _
    ByRef fromSegment As ISegment, _
    ByRef toSegment As ISegment _
)

public void SplitAtDistance3D (
    double distances,
    bool asRatio,
    ref ISegment fromSegment,
    ref ISegment toSegment
);

Inherited Interfaces

Interfaces	Description
ILine2	Provides access to the coordinates of a line segment in the form of Well Known Structures (WKS).
ILine	Provides access to members that identify a straight line segment and defines its 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 ILine3

Classes	Description
Line	A 2D straight line between a pair of 2D endpoints; can optionally have height, measure and ID attributes at each endpoint.