CubicBezierSegment Class
In This Topic
Represents a third degree cubic Bezier curve for use in a Multipart geometry. To create a cubic bezier segment use the CubicBezierBuilderEx object.
Object Model
Syntax
Remarks
A cubic Bezier curve is a non-linear segment defined by four control points. The Bezier curve starts at control point 0 (start point) and ends at control point 3 (end point). The start point and control point 1 define the tangent at the start point. Control point 2 and the end point define the tangent at the end point. The length of these tangent lines and position of the 4 control points determines the shape of the created Bezier curve.
Example
Construct a Cubic Bezier - from Coordinates
{
// Use a builderEx convenience method or a builderEx constructor.
MapPoint startPt = MapPointBuilderEx.CreateMapPoint(1.0, 1.0, 3.0);
MapPoint endPt = MapPointBuilderEx.CreateMapPoint(2.0, 2.0, 3.0);
Coordinate2D ctrl1Pt = new Coordinate2D(1.0, 2.0);
Coordinate2D ctrl2Pt = new Coordinate2D(2.0, 1.0);
// BuilderEx convenience methods don't need to run on the MCT
CubicBezierSegment bezier = CubicBezierBuilderEx.CreateCubicBezierSegment(startPt, ctrl1Pt, ctrl2Pt, endPt, SpatialReferences.WGS84);
// without a SR
bezier = CubicBezierBuilderEx.CreateCubicBezierSegment(startPt, ctrl1Pt, ctrl2Pt, endPt);
// builderEx constructors don't need to run on the MCT
CubicBezierBuilderEx cbbEx = new CubicBezierBuilderEx(startPt, ctrl1Pt, ctrl2Pt, endPt);
bezier = cbbEx.ToSegment() as CubicBezierSegment;
// another alternative
cbbEx = new CubicBezierBuilderEx(startPt, ctrl1Pt.ToMapPoint(), ctrl2Pt.ToMapPoint(), endPt);
bezier = cbbEx.ToSegment() as CubicBezierSegment;
}
Inheritance Hierarchy
System.Object
ArcGIS.Core.Geometry.Segment
ArcGIS.Core.Geometry.CubicBezierSegment
Requirements
Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)
ArcGIS Pro version: 3.0 or higher.
See Also