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AnnPolylineObject Class


Defines an annotation polyline object.


WinRT C#
public class AnnPolylineObject : AnnObject 
public sealed class AnnPolylineObject : Leadtools.Annotations.Core.IAnnObjectCloneable   
@interface LTAnnPolylineObject : LTAnnObject<NSCoding,NSCopying> 
public class AnnPolylineObject extends AnnObject 
function Leadtools.Annotations.Core.AnnPolylineObject() 
   ref class AnnPolylineObject : AnnObject 


The polyline object is a simple polyline that contains a collection of Leadtools.LeadPointD points and a stroke

With the automated functions, on systems with mouse support, each line segment is formed with a mouse click, and the object is completed on a double-click.

With the automated functions, on systems with touch support, the first line segment starts with the first tap and hold. Each successive tap and hold, hold for 1.5 seconds, results in a new line segment. The object is completed by the user removing the finger from the device.

Programmatically, the boundaries and location of the polyline object can be controlled using the following properties:

Each object can be transformed with the following methods:

The AnnPolylineObject class inherits a number of properties from the AnnObject class, providing support for font, stroke and fill characteristics. These properties are listed below:

The name of the polyline object can be controlled using Labels property, inherited from the AnnObject class.

An object can be part of a group annotation object or part of a container object. It cannot be part of both a group and a container at the same time.

The following properties can also be used to programmatically set characteristics of an AnnPolylineObject:


This example creates a polyline object and adds it to the automation container.

using LeadtoolsExamples.Common; 
using Leadtools.Annotations.Automation; 
using Leadtools.Annotations.Core; 
using Leadtools.Codecs; 
using Leadtools.Annotations.WinForms; 
public void AnnCore_AnnPolylineObject() 
   // assumes _automation is valid 
   double inch = 720.0; 
   // Add a freehand hotspot object 
   AnnPolylineObject polyLineObj = new AnnPolylineObject(); 
   // Set the points for the freehand hotspot 
   polyLineObj.Points.Add(LeadPointD.Create(1 * inch, 1 * inch)); 
   polyLineObj.Points.Add(LeadPointD.Create(2 * inch, 2 * inch)); 
   polyLineObj.Points.Add(LeadPointD.Create(1 * inch, 5 * inch)); 
   polyLineObj.Points.Add(LeadPointD.Create(5 * inch, 5 * inch)); 
   polyLineObj.Points.Add(LeadPointD.Create(4 * inch, 2 * inch)); 
   polyLineObj.Points.Add(LeadPointD.Create(5 * inch, 1 * inch)); 
   // Set the stroke 
   polyLineObj.Stroke = AnnStroke.Create(AnnSolidColorBrush.Create("Red"), LeadLengthD.Create(3)); 
   // Set the fill 
   polyLineObj.Fill = AnnSolidColorBrush.Create("Green"); 
   // Set the figure to closed 
   polyLineObj.IsClosed = true; 
   // Add the object to the automation container 


Target Platforms

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Leadtools.Annotations.Core Assembly