The example in this article describes the method of generating petal effects through JS drawing. Share it with everyone for your reference. The details are as follows:
JS drawing is used here to generate the petal effect. The graphic drawing effect is generated by pure JS. If you want to study the knowledge of JavaScript graphic drawing, you may wish to refer to this small program. I think it is quite good.
The operation effect is as shown below:
The specific code is as follows:
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Js绘制生成花瓣效果</title>
</head>
<body>
<script Language="javascript">
function a(x,y,color)
{document.write("<img border='0' style='position: absolute; left: "+(x+300)+"; top: "+(y+200)+";background-color: "+color+"' src='px.gif' width=1 height=1>")}
</script>
<script>
for(t=1;t<=360;t++){
lo=200 * Math.sin(2 * (Math.PI / 180) * t);
x = lo * Math.cos((Math.PI / 180) * t);
y = lo * Math.sin((Math.PI / 180) * t);
a(x,y,"#000000");
lo=200 * Math.cos(2 * (Math.PI / 180) * t);
x = lo * Math.cos((Math.PI / 180) * t);
y = lo * Math.sin((Math.PI / 180) * t);
a(x,y,"#ff0000");
}
</script>
</body>
</html>
I hope this article will be helpful to everyone’s JavaScript programming design.
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