是否可能与客户选定的计算机图像合作,而不向服务器上载图像。
如果是的话,那么网络方案拟订语言可以做些什么?
是否可能与客户选定的计算机图像合作,而不向服务器上载图像。
如果是的话,那么网络方案拟订语言可以做些什么?
只能通过<代码>Flash、Silverlight
或根据目标浏览器而定的习惯<代码>Plugin/ActiveX进行。
您可以使用超文本5Canvas,无需使用假肢。
传播形象,改变信道的规模,塑造形象。 也可以得出结果,作为数据。
<!DOCTYPE HTML>
<html>
<head>
<style>
body { margin: 0px; padding: 0px; }
</style>
</head>
<body>
<canvas id="myCanvas" width="578" height="200"></canvas>
<script>
var canvas = document.getElementById( myCanvas );
var context = canvas.getContext( 2d );
var imageObj = new Image();
imageObj.onload = function() {
// draw cropped image
var sourceX = 150;
var sourceY = 0;
var sourceWidth = 150;
var sourceHeight = 150;
var destWidth = sourceWidth;
var destHeight = sourceHeight;
var destX = canvas.width / 2 - destWidth / 2;
var destY = canvas.height / 2 - destHeight / 2;
context.drawImage(imageObj, sourceX, sourceY, sourceWidth, sourceHeight, destX, destY, destWidth, destHeight);
};
imageObj.src = http://www.html5canvastutorials.com/demos/assets/darth-vader.jpg ;
</script>
</body>
</html>
所有信贷都用于:
http://www.html5canvastutorials.com/tutorials/html5-canvas-image-crop/。
也可通过诸如 j、MooTools、Proto打字和书本等 j文图书馆这样做:
http://www.bitrepository.com/image-cropping-with-jquery-mootools-prototype-scriptaculous.html。
如果你用javascript寻找图像作物,请看。 它为作物种植提供了用户接口,但并未真正挖掘图像。
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