Canvasの円形グラデーション
canvas = document.getElementById('canvas'); ctx = canvas.getContext('2d'); //45度に回転 ctx.rotate( 45 * Math.PI / 180 ); //画像を描写 var curImage = new Image(); curImage.src = 'http://praiation.shiriagari.com/javascript_samples/0004/2-2/test.jpg'; curImage.onload = function(){ ctx.drawImage(curImage, 130,-100,400,300); }