LEADTOOLS JavaScript (Leadtools.Annotations.Rendering)

Render Method (AnnSvgThumbStyle)

Show in webframe
The object renderer beging invoked. Must not be null.
The mapper object to use for converting coordinates. Must not be null.
The center location of the thumb in container coordinates.
The fixed state of the owner object.
Renders this thumb at the specified center location.
Syntax
 function Leadtools.Annotations.Rendering.AnnSvgThumbStyle.render( 
   renderer ,
   mapper ,
   location ,
   operations 
)

Parameters

ParameterTypeDescription
rendererIAnnObjectRendererThe object renderer beging invoked. Must not be null.
mapperAnnContainerMapperThe mapper object to use for converting coordinates. Must not be null.
locationLeadPointDThe center location of the thumb in container coordinates.
operationsAnnFixedStateOperationsThe fixed state of the owner object.
Remarks

This method is called by renderer from the IAnnObjectRenderer.RenderThumbs and IAnnObjectRenderer.RenderRotatePointThumbs methods. The framework will call these methods to render the selected and rotation thumbs of an object.

This AnnSvgThumbStyle perform the following during this method:

  1. Converts the center location into physical coordinates using mapper.PointFromContainerCoordinates and Size into physical coordinates using mapper.SizeFromContainerCoordinates and then creates a rectangle for converted location and size (with its origin at the location).

  2. Calls AddPath passing the rectangle calculated above to allow the implementation class to draw the actual thumb shape

  3. Finally, uses Fill and Stroke to fill and draw the path onto the destination context (stored in renderer.RenderingEngine

See Also

Reference

AnnSvgThumbStyle Object
AnnSvgThumbStyle Members

 

 


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