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Re: Drawline in javascript?

Message-ID <1766109.DDZJyr5NI7@PointedEars.de> (permalink)
From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Organization PointedEars Software (PES)
Date 2013-09-01 16:18 +0200
Subject Re: Drawline in javascript?
Newsgroups comp.lang.javascript
References <77581952-f439-4315-b1cd-04b9d79bd15b@googlegroups.com> <kvh58s$huu$1@speranza.aioe.org>

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Ken wrote:

> On 19.07.2013 03:50, jonas.thornvall@gmail.com wrote:
>> I see examples using 2 parameters for moveTo and lineTo
>>
>> Is there no drawline using 4 parameters drawline((x,y)(x,y))
> 
> Sorry for jumping in so late; just wanted to add another neat trick you
> can use by extending the canvas like this:
> 
>    CanvasRenderingContext2D.prototype.line = function(x1, y1, x2, y2) {
>        this.moveTo(x1, y1);
>        this.lineTo(x2, y2);
>    }
> 
> Now you can call using your context like this:
> 
>    context.line(10, 10, 100, 100);
>    context.stroke();

Augmenting the prototype object of host objects is not necessarily possible;  
implementing a DOM interface does not require its implementation as a 
constructor-like object of the same name.

Where have you successfully tested this?
 
-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

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Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 01:50 -0700
  Re: Drawline in javascript? Martin Honnen <mahotrash@yahoo.de> - 2013-07-19 11:12 +0200
    Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 02:30 -0700
  Re: Drawline in javascript? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-07-19 11:15 +0200
  Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 02:23 -0700
    Re: Drawline in javascript? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-19 13:09 +0200
      Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 09:15 -0700
        Re: Drawline in javascript? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-19 20:08 +0200
          Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 12:15 -0700
            Re: Drawline in javascript? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-19 21:42 +0200
              Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 12:44 -0700
              Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 12:47 -0700
                Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 12:50 -0700
        Re: Drawline in javascript? Martin Leese <please@see.Web.for.e-mail.INVALID> - 2013-07-19 13:00 -0600
          Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 12:06 -0700
            Re: Drawline in javascript? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-19 21:34 +0200
            Re: Drawline in javascript? Tim Streater <timstreater@greenbee.net> - 2013-07-19 21:17 +0100
              Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 13:20 -0700
                Re: Drawline in javascript? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2013-07-19 13:32 -0700
                Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 13:39 -0700
                Re: Drawline in javascript? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2013-07-19 13:53 -0700
                Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 14:04 -0700
                Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 14:17 -0700
                Re: Drawline in javascript? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-19 23:27 +0200
                Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 15:10 -0700
                Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 15:21 -0700
                Re: Drawline in javascript? Scott Sauyet <scott@sauyet.com> - 2013-07-20 17:54 +0000
                Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-20 13:49 -0700
              Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 13:23 -0700
              Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 13:30 -0700
              Re: Drawline in javascript? "ViLco" <villiber@tin.it> - 2013-07-23 14:59 +0200
            Re: Drawline in javascript? Martin Leese <please@see.Web.for.e-mail.INVALID> - 2013-07-19 14:30 -0600
              Re: Drawline in javascript? jonas.thornvall@gmail.com - 2013-07-19 13:40 -0700
      Re: Drawline in javascript? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2013-07-19 13:25 -0700
        Re: Drawline in javascript? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-19 22:56 +0200
  Re: Drawline in javascript? Ken <so@abdiassoftware.com> - 2013-08-26 22:08 -0500
    Re: Drawline in javascript? Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-08-28 19:54 +0100
      Re: Drawline in javascript? Ken <usenet-so@abdiassoftware.com> - 2013-08-28 18:56 -0500
        Re: Drawline in javascript? Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-08-30 20:17 +0100
    Re: Drawline in javascript? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-09-01 16:18 +0200

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