Draw(RasterImage) Method

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public virtual void Draw( 
   RasterImage image
)

'Declaration
 
Public Overloads Overridable Sub Draw( _
   ByVal image As RasterImage _
)

'Usage
 
Dim instance As AnnContainer
Dim image As RasterImage
 
instance.Draw(image)

public virtual void Draw( 
   RasterImage image
)

 function Leadtools.Annotations.AnnContainer.Draw(RasterImage)( 
   image 
)

public:
virtual void Draw( 
   RasterImage^ image
)

Parameters

image: The Leadtools.RasterImage object on which to draw this AnnContainer.

All visible objects in this container will be drawn into the specified image.

The container objects might be scaled to fit into the image dimension. This method is the equivalent of calling Draw(Graphics, Rectangle) with the rectangle values set to 0, 0, image.ImageWidth, image.ImageHeight/>.

Internally this method will call RasterImage.CreateLeadDC, so the image must satisfy the requirement for that method.

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

Private Sub ContainerDrawRasterImageExample()
      ' Load the image
      Dim codecs As New RasterCodecs()
      Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.tif"))
      ' Create and set up the container
      Dim container As New AnnContainer()
      container.Bounds = New AnnRectangle(0, 0, image.ImageWidth, image.ImageHeight)
      container.UnitConverter = New AnnUnitConverter(image.XResolution, image.YResolution)

      ' add a few objects to the container
      Dim line As New AnnLineObject()
      line.Name = "Line1"
      line.Pen = New AnnPen(Color.Red, New AnnLength(1, AnnUnit.Pixel))
      line.StartPoint = New AnnPoint(10, 10, AnnUnit.Pixel)
      line.EndPoint = New AnnPoint(container.Bounds.Right - 10, container.Bounds.Bottom - 10, AnnUnit.Pixel)
      container.Objects.Add(line)

      Dim rect As New AnnRectangleObject()
      rect.Name = "Rectangle1"
      rect.Pen = New AnnPen(Color.Blue, New AnnLength(1, AnnUnit.Pixel))
      rect.Brush = New AnnSolidBrush(Color.White)
      rect.Bounds = New AnnRectangle(25, 25, 50, 50, AnnUnit.Pixel)
      container.Objects.Add(rect)

      ' Now paint the annotation onto the image surface
      container.Draw(image)

      ' Save the image to the output file
      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Ocr1_CotainerDraw.tif"), RasterImageFormat.Tif, image.BitsPerPixel)

      ' Clean up
      container.Dispose()
      image.Dispose()
      codecs.Dispose()

   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

private void ContainerDrawRasterImageExample()
   {
      // Load the image
      RasterCodecs codecs = new RasterCodecs();
      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir,"Ocr1.tif"));
      // Create and set up the container
      AnnContainer container = new AnnContainer();
      container.Bounds = new AnnRectangle(0, 0, image.ImageWidth, image.ImageHeight);
      container.UnitConverter = new AnnUnitConverter(image.XResolution, image.YResolution);

      // add a few objects to the container
      AnnLineObject line = new AnnLineObject();
      line.Name = "Line1";
      line.Pen = new AnnPen(Color.Red, new AnnLength(1, AnnUnit.Pixel));
      line.StartPoint = new AnnPoint(10, 10, AnnUnit.Pixel);
      line.EndPoint = new AnnPoint(container.Bounds.Right - 10, container.Bounds.Bottom - 10, AnnUnit.Pixel);
      container.Objects.Add(line);

      AnnRectangleObject rect = new AnnRectangleObject();
      rect.Name = "Rectangle1";
      rect.Pen = new AnnPen(Color.Blue, new AnnLength(1, AnnUnit.Pixel));
      rect.Brush = new AnnSolidBrush(Color.White);
      rect.Bounds = new AnnRectangle(25, 25, 50, 50, AnnUnit.Pixel);
      container.Objects.Add(rect);

      // Now paint the annotation onto the image surface
      container.Draw(image);

      // Save the image to the output file
      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir,"Ocr1_CotainerDraw.tif"), RasterImageFormat.Tif, image.BitsPerPixel);

      // Clean up
      container.Dispose();
      image.Dispose();
      codecs.Dispose();

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

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

Reference

AnnContainer Class
AnnContainer Members
Overload List