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    HTML5 canvas in real time
    HTML5 canvas in real time
    HTML5 canvas in real time
    Ebook161 pages1 hour

    HTML5 canvas in real time

    By Antonio Taccetti

    ()

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    About this ebook

    This e-book is an interactive e-book this means that the user can enter datas in the pages and content of these will conform to the new values.
    To enter these datas, in the pages of the e-book, have been implemented controls similar to those that can be found on the Internet pages and also an executing button to impart the command to adapt the content of the page to the new values.
    The subject of the e-book is the Compose HTML5 Canvas, that for its characteristics well suits to be documented with this method.
    The tag canvas is one of the novelties of HTML5,it is a container that can be used to draw and to work with graphic elements.
    Formally canvas is a HTML container defined by the usual opening and closing tags.
    The reasons for which it is useful to use canvas are numerous:
    - Interactivity:Canvas interacts with users
    - Animation:Each drawing can be animated, from the bouncy balls to games, till the kinematics
    - Flexibility: To Create Lines, complex shapes, texts, images, including audio/video
    - Standard Web: Free and gratuitous use of Open technology, valid throughout the world
    - Browser:Canvas is supported by all major browsers for desktop and mobile devices
    - Popularity:wide availability of resources, libraries and tools in support of the Developers
    Canvas can be used for:
    - Creating games in 2D and 3D
    - Excellent substitute of Flash for banners and ads
    - generation of eye-catching graphics both static as well as interactive
    - with images and audio/video to produce effective experiences of learning
    - Art and decoration with colors, nuances, transparencies and shadows
    To exhibit its potential, the canvas, requires a language support such as JavaScript, and it is this language that also gives interactivity to the pages of this e-book.
    This guide explores the All Controls javascript for canvas by providing the essential knowledge to the use of each of them.
    For each command are showed one or more interactive examples.
    This e-book, thanks to the interactivity will allow to a better appreciation of the real potentiality of the various controls and the interaction among them.
    In order to be able to consult this e-book is necessary an epub reader3 of last generation (autumn 2016).
    Due to scarce availability, (autumn 2016) of e-book evolved readers capable of supporting the full interactivity, we give here below non-exhaustive list of advanced readers for various operating systems.
    - Windows:Macintosh and Linux: AZARDI Infogrid Pacific
    - Android:bookari (premium version)
    - iPad:Ebook Reader
    - Chrome browser:readium (extension)
    Of course other readers may be able to support the reading of interactive3 ePub
    LanguageEnglish
    PublisherPublisher s15121
    Release dateMar 29, 2017
    ISBN9788826044040
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      Book preview

      HTML5 canvas in real time - Antonio Taccetti

      Tavola dei Contenuti - TOC

      How to use this interactive e-book

      How does interactivity

      Subject of this ebook

      , a bit 'of history

      When to use

      Introduction to using

      Color definition

      Named colors - live

      Hexadecimal colors - live

      Colors rgb - live

      Colors rgb in % - live

      Colors rgba (wiyh opacity) - live

      Producing composite colors - live

      Basic commands

      beginPath() - live

      moveTo(), lineTo(), stroke() - live

      strokeStyle, closePath() - live

      fill() - live

      save(), restore()

      save() restore() - live

      Styles of lines

      lineCap - live

      lineJoin - live

      lineWidth - live

      Rectangles

      rect() - live

      fillRect() - live

      strokeRect() - live

      isPointInPath() - live

      clearRect() - live

      Rettangoli, riassunto comandi - live

      Arches and circumferences

      Degrees and radians

      arc() - live

      Smile - live

      Spiral - live

      arcTo() draws an arc between two tangents of a circle

      arcTo() arc between bribes - live

      clip()

      clip(), save(), restore() - live

      Colors, gradients and styles

      fillStyle - live

      fillStyle linear gradients

      createLinearGradient() - live

      createRadialGradient, radial gradients

      createRadialGradient() - live

      createPattern()

      createPattern() - live

      addColorStop() - live

      strokeStyle shaded rectangle gradients - live

      strokeStyle blurred text gradients - live

      Shadow effect

      shadowColor, shadowBlur - live

      shadowColor,shadowBlur,shadowOffsetX,shadowOffsetY - live

      Bezier curves

      bezierCurveTo() - live

      quadraticCurveTo() - live

      Text

      font - live

      textAlign - live

      textBaseline - live

      fillText - live

      measureText, read - live

      measureText writing - live

      strokeText default - live

      strokeStyle, fillStyle, strokeText(), outline and fill - live

      Transformations

      scale() shapes - live

      scale() text - live

      Ellipse - live

      rotate() shapes - live

      rotate() text - live

      Squares with gradient rotated spiral - live

      translate() - live

      transform(), shapes - live

      transform(), shapes and text - live

      setTransform() text - live

      setTransform() rectangle - live

      setTransform(),move, scale, rotate, distort - live

      setTransform(), animation - live

      drawImage()

      drawImage(), upload image - live

      drawImage() upload and resize - live

      drawImage() cut out - live

      Handling level pixels

      getImageData(), get the pixel data

      createImageData() - live

      getImageData() - live

      putImageData() - live

      globalAlpha

      globalAlpha - live

      Transparency Alpha - live

      globalCompositeOperation

      globalCompositeOperation - live

      toDataURL()

      toDataURL() - live

      animation effect - live

      rebound effect - live

      animation without timer - live

      views - live

      bar chart - live

      a complex bar graph - live

      Pie chart - live

      Archimedean spiral - live

      Fermat spiral - live

      hyperbolic spiral- live

      logarithmic spiral - live

      lemniscata spiral - live

      Heart drawn with equation - live

      Punti di riferimento

      Indice

      Copertina

      How to use this interactive e-book

      LThe ePub acronym is short for electronic publication, an open standard whose development is carried out by the International Digital Publishing Forum (iPDF).

      Latest evolution of the format is ePub 3. 

      Has its roots in XML, HTML5 and CSS3, brings with it many new features that show how they will be e-books in the near future.

      Version 3 of the ePub format preserves the features of the previous version, but is more responsive and interactive.

      Responsive: it indicates the possibility of the content of the pages to automatically adapt to the size of the reading device. (In part already present in previous versions epub). 

      Interactive: Inside there are different types of multimedia content (buttons and controls to interact with users, audio, video, animations, etc)

      These innovations make it so that users are able to go beyond the simple reading experience..

      To remember that the extension of the ePub file remains identical regardless of the EPUP version.

      To open these files you need a specific software for reading.

      If the reader software is not suitable for ePub version 3, you will have unexpected needed results ..

      The e-book could be read but with partial interactivity, interactivity absent or message: The file may be corrupted.

      Downloading with ebub version 3 format file may take longer than usual if the media are heavy.

      You need an ereader EPUB3 latest generation (autumn 2016) to appreciate this e-book.

      At this http://www.taccetti.net/html5canvaslive/index.php address you can download the pages of the e-book and see if your e-reader can read.

      The following is a non-exhaustive list of advanced readers (EPUB3) for various operating systems.

      Windows, Machintosh e Linux: AZARDI Infogrid Pacific http://azardi.infogridpacific.com/azardi-download.html

      Android: bookari (versione premium) https://play.google.com/store/search?q=bookari%20epub3&c=apps

      iPad:Ebook Reader https://itunes.apple.com/it/app/ebook-reader/id381260755?mt=8

      browser Chrome: readium (extension) https://chrome.google.com/webstore/detail/readium/fepbnnnkkadjhjahcafoaglimekefifl?utm_source=chrome-app-launcher-info-dialog

      No direct relationship is in place with the owners of the software mentioned and of course other e-reader can work.

      Other developers that have software with features suitable for the reading of EPUB3, write to the author, and will be included in the list. (click here).

      Finished in Florence (Italy), October 2016

      By

      AntonioTaccetti

      www.taccetti.net

      How does interactivity

      Se riesci a leggere questo, il tuo browser non supporta Canvas.

      To interact with readers, in the pages of this ebook, epub version 3, have been written, controls similar to those of the web pages.

      In the pages of this e-book, after the user has entered new values and did clcik

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