drawImage and resize to Canvas

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I have an image which is 1836 x 3264 I want to drawImage() to canvas and resize to 739 x 1162.

After reading the documentation I thought this could be

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无人及你

2020-12-29 21:35

What you have looks correct, so you might double-check for a typo somewhere.

[additional thought: Is your image really 1836x3264 and not 3264x1836.]

Here is working code and a Fiddle: http://jsfiddle.net/m1erickson/MLGr4/

<!doctype html>
<html>
<head>
<link rel="stylesheet" type="text/css" media="all" href="css/reset.css" /> <!-- reset css -->
<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>

<style>
    body{ background-color: ivory; }
    canvas{border:1px solid red;}
</style>

<script>
$(function(){

    var canvas=document.getElementById("canvas");
    var ctx=canvas.getContext("2d");

    img=new Image();
    img.onload=function(){
        canvas.width=400;
        canvas.height=300;
        ctx.drawImage(img,0,0,img.width,img.height,0,0,400,300);
    }
    img.src="http://www.onestopwebmasters.com/wp-content/uploads/2011/06/eitai-bridge.jpg";

}); // end $(function(){});
</script>

</head>

<body>
    <canvas id="canvas" width=100 height=100></canvas>
</body>
</html>

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