QueryPoints(Multipart,SegmentExtensionType,IEnumerable<Double>,AsRatioOrLength) Method

In This Topic

Constructs a readonly list of MapPoints at distances along the curve or the extended curve.

Syntax

C#
Visual Basic (Declaration)

IReadOnlyList<MapPoint> QueryPoints( 
   Multipart multipart,
   SegmentExtensionType extensionType,
   IEnumerable<double> distancesAlongCurve,
   AsRatioOrLength asRatioOrLength
)

Overloads Function QueryPoints( _
   ByVal multipart As Multipart, _
   ByVal extensionType As SegmentExtensionType, _
   ByVal distancesAlongCurve As IEnumerable(Of Double), _
   ByVal asRatioOrLength As AsRatioOrLength _
) As IReadOnlyList(Of MapPoint)

Parameters

multipart: The multipart on which the returned points lie.
extensionType: Specifies the extension method.
distancesAlongCurve: The distances along the curve or the extended curve at which the returned points lie.
asRatioOrLength: Determines whether the distancesAlongCurve is a ratio of the segment length or a length from the start point.

Return Value

The points at the given distances along the curve or extended curve.

Exceptions

Exception	Description
System.ArgumentNullException	multipartis null or empty.
System.NotImplementedException	Spatial reference of multipartis an image coordinate system.
System.ArgumentException	distancesAlongCurve

Remarks

If the distance is less than the length of the curve, then the returned point is the point at that distance along the curve. If the distance is less than zero, or greater than the length of the curve, then the returned point is on the curve specified by the extension method. The distance may be specified as a fixed unit of measure or a ratio of the length of the curve.

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.4 or higher.

Reference

IGeometryEngine Interface
IGeometryEngine Members
Overload List

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