Class CAAT.Module.Image.ImageProcessor.ImageProcessor

Defined in: ImageProcessor.js.

Class Summary
Constructor Attributes	Constructor Name and Description
	CAAT.Module.Image.ImageProcessor.ImageProcessor()

Method Summary
Method Attributes	Method Name and Description
	applyIM(director, time) Sets canvas pixels to be the applied effect.
	clear(r, g, b, a) Clear this ImageData object to the given color components.
	createPattern(type) Creates a pattern that will make this ImageProcessor object suitable as a fillStyle value.
	getCanvas() Returns the offscreen canvas.
	getImageData() Get this ImageData.
	grabPixels(image) Grabs an image pixels.
	initialize(width, height) Initializes and creates an offscreen Canvas object.
	makeArray(size, initValue) Helper method to create an array.
	makeArray2D(size, size2, initvalue) Helper method to create a bidimensional array.
	paint(director, time) Paint this ImageProcessor object result.

Class Detail

CAAT.Module.Image.ImageProcessor.ImageProcessor()

Method Detail

applyIM(director, time)

Sets canvas pixels to be the applied effect. After process pixels, this method must be called to show the result of such processing.

Parameters:
director: {CAAT.Director}
time: {number}

Returns:: this

clear(r, g, b, a)

Clear this ImageData object to the given color components.

Parameters:
r: {number} red color component 0..255.
g: {number} green color component 0..255.
b: {number} blue color component 0..255.
a: {number} alpha color component 0..255.

Returns:: this

createPattern(type)

Creates a pattern that will make this ImageProcessor object suitable as a fillStyle value. This effect can be drawn too as an image by calling: canvas_context.drawImage methods.

Parameters:
type: {string} the pattern type. if no value is supplied 'repeat' will be used.

Returns:: CanvasPattern.

{HTMLCanvasElement} getCanvas()

Returns the offscreen canvas.

Returns:: {HTMLCanvasElement}

{ImageData} getImageData()

Get this ImageData.

Returns:: {ImageData}

{ImageData} grabPixels(image)

Grabs an image pixels.

Parameters:
image: {HTMLImageElement}

Returns:: {ImageData} returns an ImageData object with the image representation or null in case the pixels can not be grabbed.

initialize(width, height)

Initializes and creates an offscreen Canvas object. It also creates an ImageData object and initializes the internal bufferImage attribute to imageData's data.

Parameters:
width: {number} canvas width.
height: {number} canvas height.

Returns:: this

{[]} makeArray(size, initValue)

Helper method to create an array.

Parameters:
size: {number} integer number of elements in the array.
initValue: {number} initial array values.

Returns:: {[]} an array of 'initialValue' elements.

{[]} makeArray2D(size, size2, initvalue)

Helper method to create a bidimensional array.

Parameters:
size: {number} number of array rows.
size2: {number} number of array columns.
initvalue: array initial values.

Returns:: {[]} a bidimensional array of 'initvalue' elements.

paint(director, time)

Paint this ImageProcessor object result.

Parameters:
director: {CAAT.Director}.
time: {number} scene time.

Classes

Class CAAT.Module.Image.ImageProcessor.ImageProcessor