LEADTOOLS JavaScript (Leadtools.Annotations.Rendering)

RenderLabel Method

Show in webframe
The mapper object to use for converting coordinates. Must not be null.
The label to render. Must not be null.
The fixed state of the owner object.
Renders the specified label.
Syntax
 function Leadtools.Annotations.Rendering.AnnLabelRenderer.renderLabel( 
   mapper ,
   label ,
   operations 
)

Parameters

ParameterTypeDescription
mapperAnnContainerMapperThe mapper object to use for converting coordinates. Must not be null.
labelAnnLabelThe label to render. Must not be null.
operationsAnnFixedStateOperationsThe fixed state of the owner object.
Remarks

This is the label renderer implementation for this platform. For more information, refer to IAnnLabelRenderer.RenderLabel.

This method is called by the framework to render the text labels of an annotation object. The following is performed by this implementation:

  1. The values of AnnLabel.OriginalPosition is converted to physical coordinates by using mapper.AnnContainerMapper.PointFromContainerCoordinates

  2. The size of the (AnnLabel.Text) label text is measured and clipped against the AnnRenderingEngine.ClipRectangle if the value of the AnnLabel.IsRestricted property was set to true

  3. Finally, the text label is rendered into the AnnRenderingEngine.Context property using the values of the AnnLabel.Font property for the text font style and size, the AnnLabel.Foreground property as the text color and the AnnLabel.Background property as the brush to fill the background of area covered by the text.

See Also

Reference

AnnLabelRenderer Object
AnnLabelRenderer Members

 

 


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