PDFTron WebViewer

Class: RotationControlHandle

Core.Annotations. RotationControlHandle

A control handle based on the bounding box of the annotation used for rotation. The following annotations are supported: Line, Polygon, Polyline, Freehand, Ellipse, Rectangle, Stamp, FreeText

new RotationControlHandle(width, height, offset, annotation)

Creates a new rotation control handle
Parameters:
Name Type Description
width number The width of the handle
height number The height of the handle
offset number The minimum offset the control handle will be from the selection box
annotation Core.Annotations.Annotation The annotation bound to this control handle

Extends

Methods

draw(ctx, annotation, selectionBox, zoom)

Draws the control handle's appearance on the provided canvas context
Parameters:
Name Type Description
ctx CanvasRenderingContext2D the annotation canvas context
annotation Core.Annotations.Annotation the annotation to modify
selectionBox Core.Math.Rect the selection rect
zoom number the current zoom level of the document
Inherited From:

testSelection(annotation, selectionBox, zoom, x, y)

Determines if the provided point is a hit on the control handle. See Core.Annotations.SelectionAlgorithm for usuable selection algorithms.
Parameters:
Name Type Description
annotation Core.Annotations.Annotation the annotation
selectionBox Core.Math.Rect the selection rect
zoom number the current zoom level of the document
x number the x-coordinate of the point to test, in page coordinates
y number the y-coordinate of the point to test, in page coordinates
Inherited From:
Returns:
true if the provided point is a hit
Type
boolean