HTML5 Canvas標籤範例

隨著時代的進步,HTML的版本一直在進化,目前比較新的版本應該就是HTML5了,這次的HTML5針對許多標籤進行調整,當然也新增了一些標籤,主要的目的是希望可以將一些本來需要利用Flash才可以完成的互動頁面取而用HTML5來進行設計,這樣比較能減輕網頁的負載,但不管怎麼進步,其最重要的目的當然還是要網友能夠看到才行!

目前各家的瀏覽器對於HTML5的支援都不一,如果想要測試看看自己所使用的瀏覽器對HTML5的支援程度,可以到這個網址測試,馬老師針對目前的三款瀏覽器(IE9、Firefox6、Chrome13)來做了測試,IE9於HTML5中測試得到了以下的分數:

IE9於HTML5中測試分數

Firefox6於HTML5中測試得到了以下的分數:

Firefox6於HTML5中測試分數

Chrome13於HTML5中測試得到了以下的分數:

Chrome13於HTML5中測試分數

所以用以上的結果來看,目前是Google Chrome對於HTML5的支援最好,不過也只是拿了450分中的340而已,所以是否要全面改用HTML5來開發,還是應該要好好的斟酌一下,但是先了解HTML5能做到的功能,一定是沒問題的!以下就是馬老師針對HTML新增的畫布標籤製作的範例,不過因為瀏覽器支援的關係,必須使用Chrome觀賞才會是比較完整的功能喔!

範例觀賞頁面

範例影片:

PS:本範例的網頁所使用的圖檔為寬:800、高:600的圖檔,並將圖檔至於img的資料夾中

網頁程式碼:

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Slide Show</title>
<script>

var context;
var x = 0;
var ind;
var offset;
var photos = new Array();

for(var i=1;i<=13;i++){
	var im = new Image();
	im.src = "img/p" + i + ".jpg";
	photos.push(im);
}

function slideshow(){
	context = document.getElementById('canvas').getContext('2d');
	setInterval(loop,10);
}

function loop(){
	x += (slider.value - x) * 0.1;
	ind = Math.floor(x/800);
	offset = x % 800;
	context.drawImage(photos[ind], offset, 0, 800-offset, 600, 0, 0, 800-offset, 600);
	context.drawImage(photos[ind+1], 0, 0, 800, 600, 800-offset, 0, 800, 600);
}

</script>
</head>
<body onLoad="slideshow()">

<canvas width="800" height="600" id="canvas"></canvas><br />
<input type="range" id="slider" style="width:800px;" min="0" max="9600" step="1" value="0">

</body>
</html>

You may also like...

11,982 Responses

  1. If you may provoke intelligent dialogue with the HOA board, accomplish that.

  2. FrankEmine表示:

    az parayla cok kazandiran slot oyunlar?: en kazancl? slot oyunlar? – guvenilir slot siteleri

  3. Wallacefex表示:

    deneme bonusu veren yeni siteler: deneme bonusu veren siteler – yat?r?ms?z deneme bonusu veren siteler

  4. Thoughtful analysis that made me think, which is quite the feat these days.

  5. BradleyEdino表示:

    sweet bonanza slot sweet bonanza demo oyna sweet bonanza slot

  6. BradleyEdino表示:

    Casino Siteleri canl? casino siteleri Canl? Casino Siteleri

  7. Wallacefex表示:

    yeni deneme bonusu veren siteler: deneme bonusu veren siteler yeni – yat?r?ms?z deneme bonusu veren siteler

  8. https://www.tellern.com Telegram应用是开源的,Telegram下载的程序支持可重现的构建。Telegram同时适用于以下环境:Android安卓端,iPhone 和 iPad及MacOS的Apple端,Windows/Mac/Linux桌面版

  9. Incredibly informative post! I learned a lot and look forward to more.

  10. You navigate through topics with such grace, it’s like watching a dance. Care to teach me a few steps?

  11. FrankEmine表示:

    yeni deneme bonusu veren siteler: deneme bonusu veren yeni siteler – deneme bonusu veren siteler yeni

  12. BradleyEdino表示:

    deneme bonusu veren siteler yeni deneme bonusu veren siteler yeni deneme bonusu veren yeni siteler

  13. Wallacefex表示:

    casino bahis siteleri: Casino Siteleri – en guvenilir casino siteleri

  14. The grace and authority you handle topics with are as mesmerizing as a moonlit dance. I’m thoroughly impressed.

  15. Linsey Mosena表示:

    I’m amazed by the depth and breadth of The knowledge. Thanks for sharing!

  16. JasonUnsoG表示:

    https://slotsiteleri25.com/# slot siteleri

  17. Arthur Dreiss表示:

    Beautifully written and informative, making the rest of the internet look bad.

  18. I have read several excellent stuff here. Certainly value bookmarking for revisiting. I surprise how much effort you place to create any such great informative website.

  19. Wallacefex表示:

    deneme bonusu veren siteler: yat?r?ms?z deneme bonusu veren siteler – denemebonusuverensiteler25

  20. BradleyEdino表示:

    sweet bonanza demo oyna sweet bonanza guncel sweet bonanza slot

  21. FrankEmine表示:

    denemebonusuverensiteler25: deneme bonusu veren yeni siteler – deneme bonusu veren yeni siteler

  22. BradleyEdino表示:

    en cok kazand?ran slot oyunlar? slot oyunlar? en cok kazand?ran slot oyunlar?

  23. Wallacefex表示:

    deneme bonusu veren yeni siteler: deneme bonusu veren siteler – denemebonusuverensiteler25

發佈留言

發佈留言必須填寫的電子郵件地址不會公開。