html语言玫瑰花代码,JavaScript和html5实现的3D玫瑰花
时间: 2024-05-16 22:18:19 浏览: 59
canvas生成一朵玫瑰花html代码.pdf
HTML实现玫瑰花代码:
```html
<!DOCTYPE html>
<html>
<head>
<title>玫瑰花</title>
</head>
<body>
<pre style="line-height: 1px;">
,#####,
#_ _#
|a` `a|
| u |
\ = /
|\___/|
___.'`\.m/,^`-._
.' / \
/ \/\_^_\
\_ |` ` |
\_ _ / \
`._ .' `'.__.'|
`--,/ |
|___/\ /
snd `->-r'
</pre>
</body>
</html>
```
JavaScript和HTML5实现的3D玫瑰花:
```html
<!DOCTYPE html>
<html>
<head>
<title>3D玫瑰花</title>
<style>
canvas {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
// 定义3D坐标系
var xAngle = Math.PI / 200;
var yAngle = Math.PI / 200;
var centerX = canvas.width / 2;
var centerY = canvas.height / 2;
var radius = 150;
// 定义玫瑰花的参数
var a = 5;
var b = 3;
var n = 5;
function draw() {
// 清空画布
ctx.clearRect(0, 0, canvas.width, canvas.height);
// 绘制3D坐标系
ctx.beginPath();
ctx.moveTo(centerX, centerY);
ctx.lineTo(centerX + radius * Math.cos(yAngle), centerY + radius * Math.sin(xAngle));
ctx.stroke();
ctx.beginPath();
ctx.moveTo(centerX, centerY);
ctx.lineTo(
centerX + radius * Math.cos(xAngle) * Math.cos(yAngle),
centerY + radius * Math.sin(xAngle)
);
ctx.stroke();
ctx.beginPath();
ctx.moveTo(centerX, centerY);
ctx.lineTo(
centerX,
centerY + radius * Math.sin(xAngle) * Math.sin(yAngle)
);
ctx.stroke();
// 绘制玫瑰花
var t = 0;
var dt = Math.PI / 180;
ctx.beginPath();
while (t < Math.PI * 2) {
var r =
a *
Math.cos(n * t) *
Math.cos(t) +
b *
Math.sin(n * t) *
Math.sin(t);
var x = centerX + r * Math.cos(t + yAngle);
var y = centerY + r * Math.sin(t + xAngle);
ctx.lineTo(x, y);
t += dt;
}
ctx.stroke();
// 更新3D坐标系的角度
xAngle += Math.PI / 200;
yAngle += Math.PI / 200;
// 重新绘制
requestAnimationFrame(draw);
}
draw();
</script>
</body>
</html>
```
阅读全文