Defines an annotation point object.

Object Model

Syntax

Visual Basic (Declaration)
<SerializableAttribute()> Public Class AnnPointObject Inherits AnnObject Implements IAnnPictureObject

Visual Basic (Usage)	Copy Code
`Dim instance As AnnPointObject`

C#
[SerializableAttribute()] public class AnnPointObject : AnnObject, IAnnPictureObject

C++/CLI
[SerializableAttribute()] public ref class AnnPointObject : public AnnObject, IAnnPictureObject

Example

This example adds a new point object to a container.

Visual Basic Copy Code

Visual Basic	Copy Code
Private Sub AnnPointObject_AnnPointObject(ByVal viewer As RasterImageViewer, ByVal container As AnnContainer) Dim point As AnnPointObject = New AnnPointObject() point.CenterPoint = New AnnPoint(100, 100, AnnUnit.Pixel) point.ShowPicture = True ' default picture, no need to change anything container.Objects.Add(point) viewer.Invalidate(point.InvalidRectangle) MessageBox.Show("Picture") ' show with a radius point.Radius = New AnnLength(16, AnnUnit.Pixel) point.Pen = New AnnPen(Color.Red, New AnnLength(1, AnnUnit.Pixel)) point.ShowPicture = False viewer.Invalidate(point.InvalidRectangle) MessageBox.Show("No picture") End Sub

Private Sub AnnPointObject_AnnPointObject(ByVal viewer As RasterImageViewer, ByVal container As AnnContainer)

   Dim point As AnnPointObject = New AnnPointObject()

   point.CenterPoint = New AnnPoint(100, 100, AnnUnit.Pixel)

   point.ShowPicture = True

   ' default picture, no need to change anything

   container.Objects.Add(point)

   viewer.Invalidate(point.InvalidRectangle)

   MessageBox.Show("Picture")



   ' show with a radius

   point.Radius = New AnnLength(16, AnnUnit.Pixel)

   point.Pen = New AnnPen(Color.Red, New AnnLength(1, AnnUnit.Pixel))

   point.ShowPicture = False

   viewer.Invalidate(point.InvalidRectangle)

   MessageBox.Show("No picture")

End Sub

C# Copy Code

C#	Copy Code
private void AnnPointObject_AnnPointObject(RasterImageViewer viewer, AnnContainer container) { AnnPointObject point = new AnnPointObject(); point.CenterPoint = new AnnPoint(100, 100, AnnUnit.Pixel); point.ShowPicture = true; // default picture, no need to change anything container.Objects.Add(point); viewer.Invalidate(point.InvalidRectangle); MessageBox.Show("Picture"); // show with a radius point.Radius = new AnnLength(16, AnnUnit.Pixel); point.Pen = new AnnPen(Color.Red, new AnnLength(1, AnnUnit.Pixel)); point.ShowPicture = false; viewer.Invalidate(point.InvalidRectangle); MessageBox.Show("No picture"); }

private void AnnPointObject_AnnPointObject(RasterImageViewer viewer, AnnContainer container) 
{ 
   AnnPointObject point = new AnnPointObject(); 
   point.CenterPoint = new AnnPoint(100, 100, AnnUnit.Pixel); 
   point.ShowPicture = true; 
   // default picture, no need to change anything 
   container.Objects.Add(point); 
   viewer.Invalidate(point.InvalidRectangle); 
   MessageBox.Show("Picture"); 
 
   // show with a radius 
   point.Radius = new AnnLength(16, AnnUnit.Pixel); 
   point.Pen = new AnnPen(Color.Red, new AnnLength(1, AnnUnit.Pixel)); 
   point.ShowPicture = false; 
   viewer.Invalidate(point.InvalidRectangle); 
   MessageBox.Show("No picture"); 
}

Remarks

The point object is a single point. This object works in two ways: If the value of ShowPicture is true; this object will draw the picture in Picture with CenterPoint as the center point. AnnDrawable.Pen, AnnDrawable.Brush and Radius will be ignored. If ShowPicture is false; this object will draw an ellipse using AnnDrawable.Pen, AnnDrawable.Brush and Radius around CenterPoint.

This class implements the IAnnPictureObject interface and accesses the IAnnPictureObject.Picture property that handles the picture associated with the annotation object.

For more information, refer to Using Pictures in Annotation Objects

For more information about the point annotation object refer to AnnPointObject. For more information about the automated point annotation object, refer to Annotation Objects - Automated Features and Automated Annotations - Point Tab.

Inheritance Hierarchy

System.Object
   Leadtools.Annotations.AnnDrawable
      Leadtools.Annotations.AnnObject
         Leadtools.Annotations.AnnPointObject

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

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AnnPointObject Class
See Also Members Example