用html5画动态太极图

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用html5画动态太极图

2024-05-29 12:11| 来源: 网络整理| 查看: 265

用html5画动态太极图原创

desuzh 2012-05-11 10:31:31 博主文章分类：游戏 ©著作权

文章标签 html 画太极图文章分类 HTML5 移动开发

©著作权归作者所有：来自51CTO博客作者desuzh的原创作品，请联系作者获取转载授权，否则将追究法律责任 your browser does not support the canvas tag var deg = 0; var r = 30; var rl = 100; function drawTaiji() { var canvas = document.getElementById('myCanvas'); var context = canvas.getContext('2d'); var colorA = "rgb(0, 0, 0)"; var colorB = "red"; var px =Math.sin(deg)*r; var py =Math.cos(deg)*r; context.clearRect(0, 0, 300, 300); context.beginPath(); context.fillStyle = colorA; context.arc(rl, rl, 60, 0.5 * Math.PI +deg, 1.5 * Math.PI +deg, true); context.closePath(); context.fill(); context.fillStyle = colorB; context.beginPath(); context.arc(rl, rl, 60, 1.5* Math.PI +deg, 0.5 * Math.PI +deg, true); context.closePath(); context.fill(); context.fillStyle = colorB; context.beginPath(); context.arc(rl+px, rl-py, 30, 0.5 * Math.PI + deg, 1.5 * Math.PI + deg, true); context.closePath(); context.fill(); context.fillStyle = colorA; context.beginPath(); context.arc(rl-px, rl+py, 30, 1.5 * Math.PI + deg, 0.5 * Math.PI + deg, true); context.closePath(); context.fill(); context.fillStyle = colorA; context.beginPath(); context.arc(rl+px, rl-py, 8, 0, 2 * Math.PI, true); context.closePath(); context.fill(); context.fillStyle = colorB; context.beginPath(); context.arc(rl-px, rl+py, 8, 0, 2 * Math.PI, true); context.closePath(); context.fill(); deg +=0.1; } setInterval(drawTaiji, 100);

用html5画动态太极图_html

your browser does not support the canvas tag var canvas = document.getElementById('myCanvas'); var ctx = canvas.getContext("2d"); var angle = 0; var count = 360; var clrA = '#000'; var clrB = 'red'; function taiji(x, y, radius, angle, wise) { angleangle = angle || 0; wisewise = wise ? 1 : -1; ctx.save(); ctx.translate(x, y); ctx.rotate(angle); ctx.fillStyle = clrA; ctx.beginPath(); ctx.arc(0, 0, radius, 0, Math.PI, true); ctx.fill(); ctx.beginPath(); ctx.fillStyle = clrB; ctx.arc(0, 0, radius, 0, Math.PI, false); ctx.fill(); ctx.fillStyle = clrB; ctx.beginPath(); ctx.arc(wise * -0.5 * radius, 0, radius / 2, 0, Math.PI * 2, true); ctx.fill(); ctx.beginPath(); ctx.fillStyle = clrA; ctx.arc(wise * +0.5 * radius, 0, radius / 2, 0, Math.PI * 2, false); ctx.arc(wise * -0.5 * radius, 0, radius / 10, 0, Math.PI * 2, true); ctx.fill(); ctx.beginPath(); ctx.fillStyle = clrB; ctx.arc(wise * +0.5 * radius, 0, radius / 10, 0, Math.PI * 2, true); ctx.fill(); ctx.restore(); } loop = setInterval(function () { beginTag = true; ctx.clearRect(0, 0, canvas.width, canvas.height); taiji(200, 200, 50, Math.PI * (angle / count) * 2, true); //taiji(350, 350, 50, Math.PI * ((count - angle) / count) * 2, false); angle = (angle + 5) % count; }, 50);

出自：http://www.cnblogs.com/iamzhanglei/archive/2012/03/27/2419268.html

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用html5画动态太极图

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