CurveDensifyMethod Enumeration

In This Topic

Methods to specify curve densification. Used with PolylineBuilderEx.CreatePolyline, GeometryEngine.ConstructGeodeticLineFromPoints, and GeometryEngine.ConstructGeodeticLineFromDistance

Syntax

C#
Visual Basic (Declaration)

public enum CurveDensifyMethod : System.Enum, System.IComparable, System.IConvertible, System.IFormattable

Public Enum CurveDensifyMethod 
   Inherits System.Enum
   Implements System.IComparable, System.IConvertible, System.IFormattable

Members

Member	Description
ByAngle	Densify parameter is angle increment. Line segments will become shorter as the curvature increases. For geodesic ellipses, the angle is with respect to the reference circle.
ByDeviation	Densify parameter is deviation from the true curve. Line segments of varying length will be generated. The curve parameter specifies the maximum allowable distance between a line segment and the portion of the curve that it is approximating.
ByLength	Densify parameter is curve length increment. Output line segments will be no longer than the parameter. This method cannot be used when constructing geodesic circles or ellipses

Example

Construct a Clothoid by Angle

MapPoint startPoint = MapPointBuilderEx.CreateMapPoint(0, 0);
double tangentDirection = Math.PI / 6;
ArcOrientation orientation = ArcOrientation.ArcCounterClockwise;
double startRadius = double.PositiveInfinity;
double endRadius = 0.2;
ClothoidCreateMethod createMethod = ClothoidCreateMethod.ByAngle;
double angle = Math.PI / 2;
CurveDensifyMethod densifyMethod = CurveDensifyMethod.ByLength;
double densifyParameter = 0.1;

Polyline polyline = PolylineBuilderEx.CreatePolyline(startPoint, tangentDirection, startRadius, endRadius, orientation, createMethod, angle, densifyMethod, densifyParameter, SpatialReferences.WGS84);

int numPoints = polyline.PointCount;
MapPoint queryPoint = polyline.Points[numPoints - 2];

MapPoint pointOnPath;
double radiusCalculated, tangentDirectionCalculated, lengthCalculated, angleCalculated;

PolylineBuilderEx.QueryClothoidParameters(queryPoint, startPoint, tangentDirection, startRadius, endRadius, orientation, createMethod, angle, out pointOnPath, out radiusCalculated, out tangentDirectionCalculated, out lengthCalculated, out angleCalculated, SpatialReferences.WGS84);

Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         ArcGIS.Core.Geometry.CurveDensifyMethod

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

ArcGIS.Core.Geometry Namespace

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