public void BurnToRect( LeadRectD destinationRect )
function Leadtools.Annotations.Core.AnnRenderingEngine.BurnToRect( destinationRect )
All visible objects in this container will be drawn into the current context.
This method uses the resolution (DPI) values stored in the container. Use this method when burning the container objects into the context of the image currently being used in the automation.
To burn a container into a context while specifying new resolution (DPI) values, use BurnToRectWithDpi.
[TestMethod] public void AnnRenderingEngine_BurnToRect() { // 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); // Get the destination rectangle in container coordinates // The canvas DPI is 96, and the units are 1/720 of an inch // So, sizeInUnits = (sizeInPixels / dpi) = size in inches * 720 = size in container units // Or, we can use the annotations mapper, like this AnnContainerMapper mapper = AnnContainerMapper.CreateDefault(); LeadRectD rc = LeadRectDHelper.Create(0, 0, 200, 200); rc = mapper.RectToContainerCoordinates(rc); // Burn the annotations on this canvas // Create a new rendering engine for this container and context AnnRenderingEngine renderingEngine = new AnnMetroRenderingEngine(container, _viewer.InteractiveModeCanvas); // Burn it renderingEngine.BurnToRect(rc); // Invalidate _automation.Invalidate(LeadRectDHelper.Empty); }
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