By Afshin Mehrabani
Design and boost wonderful lively internet functions utilizing CreateJS
About This Book
- Illustrates using EaselJS API to customise and increase functionality of advanced applications
- Provides suggestions to universal difficulties confronted through CreateJS users
Who This publication Is For
What you are going to Learn
- Install and configure CreateJS
- Implement the drag-and-drop interactions
- Utilize HTML5 to improve complicated animations with EaselJS and TweenJS
- Improve animation rendering with caching techniques
- Enhance images and shapes utilizing filters like hue
- Build a UI utilizing CreateJS
Starting with the fundamentals of CreateJS, you are going to create your first operating net software. you are going to achieve sensible event of using good points like drag-and-drop, caching, filtering, and portray, to construct visually amazing net applications.
Filled with useful examples and wide descriptions, this e-book starts off via supporting you with fitting and configuring the CreateJS suite in several environments. you'll then become aware of the EaselJS API and enforce the fundamental gadgets and techniques. you'll growth to create animations in CreateJS utilizing TweenJS and may learn how to optimize the functionality of animations for higher rendering in numerous browsers.
You also will learn how to use the Vector mask to create a number of layers at the canvas.Finally, you are going to achieve the services to enhance your personal internet functions, wealthy with wonderful visible renditions and a hands-on event of operating with CreateJS.
This is a definitive advisor for a person who's making plans to exploit the prolific CreateJS suite to strengthen compelling internet applications.
Read or Download Getting Started with CreateJS PDF
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Extra info for Getting Started with CreateJS
Stage(canvas); /* create and draw the form */ var circle = new createjs. Shape(); circle. photos. beginFill("red"). drawCircle(50, 50, 40); /* upload the blur filter out to filters estate */ circle. filters = [new createjs. BlurFilter(5, five, 10)]; /* cache the form to use the filter out */ circle. cache(0, zero, a hundred, 100); /* upload form to level and replace */ level. addChild(circle); degree. update(); within the first line, now we have created a form item; within the subsequent line, we have now created a circle with the colour pink. the following line comprises the clear out configurations, and within the final line we now have cached the thing utilizing the cache functionality. utilizing the cache technique in examples with filtering won't basically strengthen functionality yet also will follow the clear out to the form and make it paintings. EaselJS includes numerous easy filters, reminiscent of blur or colour filters, for you to use simply. here's a checklist of integrated filters: AlphaMapFilter: this can be used to map a grayscale snapshot to the alpha channel of a exhibit item. AlphaMaskFilter: this can be used to map the alpha channel of a picture to the alpha channel of a reveal item. BlurFilter: this is applicable vertical and horizontal blur to a show item. ColorFilter: this colour transforms a show item. ColorMatrixFilter: This transforms a picture utilizing a ColorMatrix. within the subsequent part, we are going to speak about most of these filters intimately. utilizing the AlphaMapFilter classification The AlphaMapFilter is an integrated filter out is used for employing a grayscale alpha map photo (or canvas) to the objective. To be clearer, the alpha channel of the outcome should be copied from the purple channel of the map and the RGB channels may be copied from the objective item. regularly, it is strongly recommended that you simply use AlphaMaskFilter, since it has far better functionality. This has been taken from: http://www. createjs. com/Docs/EaselJS/classes/AlphaMapFilter. html the subsequent code snippet is the definition for this type: AlphaMapFilter (alphaMap) The parameters are as follows: alphaMap | snapshot | HTMLCanvasElement we have now used the grayscale photograph or the canvas because the alpha channel. it's going to be of a similar dimensions because the goal. the next code is an instance of utilizing the AlphaMapFilter type: /* upload canvas and level */ var canvas = record. getElementById("canvas"); var degree = new createjs. Stage(canvas); /* Create clear out */ var field = new createjs. Shape(); field. photos. beginLinearGradientFill(["#0000ff", "#ff0000"], [1, 0], zero, zero, zero, three hundred) field. pics. drawRect(0, zero, three hundred, 300); field. cache(0, zero, three hundred, 300); /* create the second one form */ var box2 = new createjs. Shape(); box2. portraits. beginLinearGradientFill(["#0000ff", "#ff0000"], [0, 1], zero, zero, zero, 300); box2. pix. drawRect(0, zero, three hundred, 300); /* upload clear out to box2 */ box2. filters = [ new createjs. AlphaMapFilter(box. cacheCanvas) ]; /* and at last, cache the form to use alterations */ box2. cache(0, zero, three hundred, 300); /* upload bitmap to level and replace degree */ level. addChild(box2); degree. update(); within the first few strains of the code, we created a rectangle created with a linear gradient after which cached the item utilizing cache strategy.