Mapper Property

C#
Visual Basic
WinRT C#
Objective-C
Java
WinRT JavaScript

public AnnContainerMapper Mapper {get; set;}

'Declaration

Public Property Mapper As AnnContainerMapper

public AnnContainerMapper Mapper {get; set;}

@property (nonatomic) LTAnnContainerMapper* mapper;

public AnnContainerMapper getMapper()
public void setMapper(AnnContainerMapper mapper)

 
get_Mapper();
set_Mapper(value);
Object.defineProperty('Mapper');

Property Value

The mapper for this AnnContainer. The default value is the object created by AnnContainerMapper.CreateDefault.

The mapper is used by this container when converting display, container and image coordinates. For more information, refer to AnnContainerMapper.

If you set the value of this property to null, then this container will use an object created from AnnContainerMapper.CreateDefault instead. Therefore, you will always get a valid object when querying the value of this property.

This example will use the mapper to convert a rectangle value from annotation to image units and back.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

using Leadtools.Annotations.Automation;
using Leadtools.Annotations.Core;
using Leadtools.Codecs;
using Leadtools.Annotations.WinForms;

      
public void AnnContainer_Mapper()
{
   double inch = 720.0;
   // Create a new annotation container, 8.5 by 11 inches
   AnnContainer container = new AnnContainer();
   // Size must be in annotation units (1/720 of an inch)
   container.Size = LeadSizeD.Create(8.5 * inch, 11 * inch);

   // Set its mapper, assuming the screen DPI is 96 and the image DPI is 300
   container.Mapper = new AnnContainerMapper(96, 96, 300, 300);

   // Add a blue on yellow rectangle from 3in 3in to 4in 4in
   AnnRectangleObject rectObj = new AnnRectangleObject();
   rectObj.Rect = LeadRectD.Create(3 * inch, 3 * inch, 1 * inch, 1 * inch);
   rectObj.Stroke = AnnStroke.Create(AnnSolidColorBrush.Create("Blue"), LeadLengthD.Create(1));
   rectObj.Fill = AnnSolidColorBrush.Create("Yellow");
   container.Children.Add(rectObj);

   // Get the rectangle in annotations units
   LeadRectD rc = rectObj.Rect;
   Debug.WriteLine("Annotations units: " + rc.X + "," + rc.Y + "," + rc.Width + "," + rc.Height);

   // Convert it to image coordinates
   rc = container.Mapper.RectFromContainerCoordinates(rc, AnnFixedStateOperations.None);
   Debug.WriteLine("Image units (pixels): " + rc.X + "," + rc.Y + "," + rc.Width + "," + rc.Height);

   // If this container is used with an image, you can use the pixels values above to find the exact value on the image

   // Convert it to back to annotations units
   rc = container.Mapper.RectToContainerCoordinates(rc);
   Debug.WriteLine("Original units: " + rc.X + "," + rc.Y + "," + rc.Width + "," + rc.Height);
}

using Leadtools.Converters;
using Leadtools.Annotations.Automation;
using Leadtools.Controls;
using Leadtools.Annotations.Core;
using Leadtools.Codecs;

      
public void AnnContainer_Mapper()
{
   double inch = 720.0;
   // Create a new annotation container, 8.5 by 11 inches
   AnnContainer container = new AnnContainer();
   // Size must be in annotation units (1/720 of an inch)
   container.Size = LeadSizeDHelper.Create(8.5 * inch, 11 * inch);

   // Set its mapper, assuming the screen DPI is 96 and the image DPI is 300
   container.Mapper = new AnnContainerMapper(96, 96, 300, 300);

   // Add a blue on yellow rectangle from 3in 3in to 4in 4in
   AnnRectangleObject rectObj = new AnnRectangleObject();
   rectObj.Rect = LeadRectDHelper.Create(3 * inch, 3 * inch, 1 * inch, 1 * inch);
   rectObj.Stroke = AnnStroke.Create(AnnSolidColorBrush.Create("Blue"), LeadLengthDHelper.Create(1));
   rectObj.Fill = AnnSolidColorBrush.Create("Yellow");
   container.Children.Add(rectObj);

   // Get the rectangle in annotations units
   LeadRectD rc = rectObj.Rect;
   Debug.WriteLine("Annotations units: " + rc.X + "," + rc.Y + "," + rc.Width + "," + rc.Height);

   // Convert it to image coordinates
   rc = container.Mapper.RectFromContainerCoordinates(rc, AnnFixedStateOperations.None);
   Debug.WriteLine("Image units (pixels): " + rc.X + "," + rc.Y + "," + rc.Width + "," + rc.Height);

   // If this container is used with an image, you can use the pixels values above to find the exact value on the image

   // Convert it to back to annotations units
   rc = container.Mapper.RectToContainerCoordinates(rc);
   Debug.WriteLine("Original units: " + rc.X + "," + rc.Y + "," + rc.Width + "," + rc.Height);
}

Target Platforms

Reference

AnnContainer Class
AnnContainer Members