BackgroundCanvas

Quick & dirty canvas-as-background utility. Fills the page, centered, without scrollbars. For example usage, see here.

Constructor Params

zoom

• Optional. Apply a scaling factor to the entire canvas.

zIndex

• Optional. Specify a z-index to be applied.

Properties

container

• The div that holds the canvas, and is added to the DOM.

canvas

• The canvas.

context

• The canvas's context.

Methods

getWidth()

• returns the unscaled width of the canvas

getHeight()

• returns the unscaled height of the canvas

getVisibleRect()

• returns an array describing the visible area of the canvas: [left, top, width, height]