Class SpatialEndPoint

Namespace

YndigoBlue.Velocity.Functions

Assembly

YndigoBlue.Velocity.dll

Represents the ST_EndPoint spatial accessor function that returns the last point of a linestring geometry.

public class SpatialEndPoint : Function, IElement, ICheckItem, IDefaultItem, IFilterItem

Inheritance

object

Function

SpatialEndPoint

Implements

IElement

ICheckItem

IDefaultItem

IFilterItem

Remarks

Warning

Spatial functions are not available in the Community Edition of Velocity. They require the Full Edition.

The ST_EndPoint function returns a point geometry representing the last vertex of a linestring. For multi-linestrings or non-linestring geometries, behavior varies by database implementation (may return null or the endpoint of the last component). For Geometry types in planar coordinate systems, this is useful for analyzing line direction, connectivity analysis, network routing, or extracting terminal points from linear features. OGC-compliant.

Return Type: Point geometry.

Equivalent to: ST_PointN(line, ST_NumPoints(line))

Input	ST_EndPoint Result
Open LineString	Last vertex
Closed LineString (ring)	Last vertex (= first vertex)
MultiLineString	End of first line only
Point, Polygon	NULL

Constructors

SpatialEndPoint(Geometry)

Initializes a new instance of ST_EndPoint with a linestring geometry literal.

SpatialEndPoint(Column)

Initializes a new instance of ST_EndPoint with a linestring geometry column.

SpatialEndPoint(Function)

Initializes a new instance of ST_EndPoint for a function result.

SpatialEndPoint(Geography)

Initializes a new instance of ST_EndPoint with a linestring geography literal.