LEADTOOLS WinRT (Leadtools.Annotations.Core)
LEAD Technologies, Inc

BurnToRectWithDpi Method

Example 

The destination rectangle in container coordinates.
Horizontal source (screen) DPI.
Vertical source (screen) DPI.
Horizontal target (image) DPI.
Vertical target (image) DPI.
Burns the annotation objects in Container to the destination context and destination rectangle at the specified resolution. WinRT support
Syntax
public void BurnToRectWithDpi( 
   LeadRectD destinationRect,
   double sourceDpiX,
   double sourceDpiY,
   double targetDpiX,
   double targetDpiY
)
 function Leadtools.Annotations.Core.AnnRenderingEngine.BurnToRectWithDpi( 
   destinationRect ,
   sourceDpiX ,
   sourceDpiY ,
   targetDpiX ,
   targetDpiY 
)

Parameters

destinationRect
The destination rectangle in container coordinates.
sourceDpiX
Horizontal source (screen) DPI.
sourceDpiY
Vertical source (screen) DPI.
targetDpiX
Horizontal target (image) DPI.
targetDpiY
Vertical target (image) DPI.
Remarks

All visible objects in this container will be drawn into the current context.

This method uses the resolution (DPI) values specified and not the values stored in the container. Use this method when burning the container objects into any context.

To burn a container into the context of the image being automated, use Burn.

Example
 
[TestMethod]
public void AnnRenderingEngine_BurnToRectWithDpi()
{
   // _viewer is ImageViewer _automation is working on
   // Get the container
   AnnContainer container = _automation.Container;

   double inch = 720.0;

   // Add a red line object, from 1in 1in to 2in 2in
   AnnPolylineObject lineObj = new AnnPolylineObject();
   lineObj.Points.Add(LeadPointDHelper.Create(1 * inch, 1 * inch));
   lineObj.Points.Add(LeadPointDHelper.Create(2 * inch, 2 * inch));
   lineObj.Stroke = AnnStroke.Create(AnnSolidColorBrush.Create("Red"), LeadLengthDHelper.Create(1));
   container.Children.Add(lineObj);

   // 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);

   // Create a new rendering engine for this container and context
   AnnMetroRenderingEngine renderingEngine = new AnnMetroRenderingEngine(container, _viewer.InteractiveModeCanvas);

   // Set the resolution
   double dpiX = _viewer.ScreenDpiX;
   double dpiY = _viewer.ScreenDpiY;
   double xRes = _viewer.ImageDpiX;
   double yRes = _viewer.ImageDpiY;

   // Burn it
   renderingEngine.BurnToRectWithDpi(LeadRectDHelper.Empty, dpiX, dpiY, xRes, yRes);

   // Delete the objects we added
   _automation.SelectObjects(container.Children);
   _automation.DeleteSelectedObjects();

   // Invalidate to see the burned objects
   _viewer.Invalidate();
}
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

AnnRenderingEngine Class
AnnRenderingEngine Members

 

 


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