how to convert array or coordinates to image

Discussion in 'Javascript' started by Eadmund@letterbee.com, Dec 28, 2006.

  1. Guest

    Hi,

    Pretty sure this is a non starter, but does anyone know how to convert
    an array of x-y coordinates, plotting a shape, in to a image (BMP, GIFF
    etc) in javascript?

    Regards

    Eadmund
    , Dec 28, 2006
    #1
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  2. yb Guest

    > Pretty sure this is a non starter, but does anyone know how to convert
    > an array of x-y coordinates, plotting a shape, in to a image (BMP, GIFF
    > etc) in javascript?


    Can't be done in javascript (at least not for all web browsers), you
    won't be able to create an image file.
    yb, Dec 28, 2006
    #2
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  3. pcx99 Guest

    wrote:
    > Hi,
    >
    > Pretty sure this is a non starter, but does anyone know how to convert
    > an array of x-y coordinates, plotting a shape, in to a image (BMP, GIFF
    > etc) in javascript?
    >
    > Regards
    >
    > Eadmund
    >


    Check out the <canvas> tag. It's supported in firefox and opera and
    there are hacks which get it to work in IE. It's the wave of the future
    and should be pretty standard to most working browsers in 2008.

    http://developer.mozilla.org/en/docs/Canvas_tutorial

    --
    http://www.hunlock.com -- Musings in Javascript, CSS.
    $FA
    pcx99, Dec 28, 2006
    #3
  4. In comp.lang.javascript message <
    legroups.com>, Thu, 28 Dec 2006 06:12:32, posted:
    >
    >Pretty sure this is a non starter, but does anyone know how to convert
    >an array of x-y coordinates, plotting a shape, in to a image (BMP, GIFF
    >etc) in javascript?


    You could, of course, write the logic to encode the shape as an array of
    byte-sized numbers matching the desired content of the BMP file (and
    similarly with more effort for other formats). From that, generate,
    still using javascript, a DEBUG script which will create that file.
    Write it to a new window, and write instructions to Select All on that
    window, copy to clipboard, and paste into DEBUG.

    It's a good idea to read the newsgroup and its FAQ. See below.

    --
    (c) John Stockton, Surrey, UK. ?@merlyn.demon.co.uk Turnpike v6.05 IE 6
    news:comp.lang.javascript FAQ <URL:http://www.jibbering.com/faq/index.html>.
    <URL:http://www.merlyn.demon.co.uk/js-index.htm> jscr maths, dates, sources.
    <URL:http://www.merlyn.demon.co.uk/> TP/BP/Delphi/jscr/&c, FAQ items, links.
    Dr J R Stockton, Dec 29, 2006
    #4
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