Mapper Property (original) (raw)
Summary
Gets or sets the mapper for this AnnObject.
Syntax
C#
Objective-C
C++/CLI
Java
Python
@property (nonatomic) LTAnnContainerMapper* mapper; public AnnContainerMapper getMapper()
public void setMapper(AnnContainerMapper mapper)
Property Value
The mapper for this AnnObject. The default value is the object created by AnnContainerMapper.CreateDefault.
Example
This example will use the mapper to convert a rectangle value from annotation to image units and back.
using Leadtools.Annotations.Automation;
using Leadtools.Annotations.Engine;
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);
}