js+svg实现一个svg花朵生成器代码-html代码-BFW代码库

代码语言：html

所属分类：其他

代码描述：js+svg实现一个svg花朵生成器代码，可调节参数生成不同类型的花朵svg代码，而且svg代码可复制。

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en" >

<head>

  <meta charset="UTF-8">
  


  
  
<style>
body {
  display: grid;
  place-items: center;
}

html, body {
  background: #334d44;
  height: 100%;
}

svg {
  height: 100vh;
  width: 100vw;
}

svg, g {
  transform-box: fill-box;
  transform-origin: 50% 50%;
}

.button {
  background: #000;
  border: none;
  bottom: 2rem;
  color: #fff;
  cursor: pointer;
  font-size: 0.7rem;
  padding: 1em 2em;
  position: absolute;
  right: 2rem;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}
.button::after {
  color: #fff;
  content: "all done!";
  height: 100%;
  left: 0;
  position: absolute;
  top: -1.5em;
  visibility: hidden;
  width: 100%;
  z-index: 0;
}
.button.copied::after {
  opacity: 0;
  transform: translateY(-200%);
  transition: transform 0.75s ease-out, opacity 0.25s ease-out 0.5s;
  visibility: visible;
}
</style>




</head>

<body >
  <svg id="flower" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" aria-labelledby="svgTitle svgDesc" role="img">
  <title id="svgTitle">A generative illustration</title>
  <desc id="svgDesc">Click on the image to redraw it!</desc>
</svg>
<button class="button" type="button">Copy SVG</button>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/dat.gui-min.js"></script>
      <script  type="module">
import copy from "https://cdn.skypack.dev/copy-to-clipboard@3.3.1";

const utils = {
	getRandFromRange: function (min, max) {
		return Math.floor(Math.random() * (max - min + 1)) + min;
	}
};

class Illustration {
	boxSize;
	hue = 0;
	box = { width: 0, height: 0 };
	element;
	svg;

	constructor(selector, settings) {
		this.boxSize = 500;
		this.box = {
			width: this.boxSize * 4,
			height: this.boxSize * 4
		};
		this.settings = settings;
		this.setSVG(selector);

		this.createSettingsBox();
		this.setupCopyButton();
		
		// window.setInterval(this.draw.bind(this), 500);
		this.draw();
	}

	setupCopyButton() {
		this.copy = document.querySelector(".button");
		this.copy.addEventListener("click", () => {
			copy(this.svg.outerHTML);

			this.copy.classList.add("copied");
		});
		this.copy.addEventListener("transitionend", () => {
			this.copy.classList.remove("copied");
		});
	}

	addSetting() {
		folder.add(this.settings[setting], "min", this.settings[setting].minVal, this.settings[setting].maxVal);

	}

	createSettingsBox() {
		this.gui = new dat.GUI();
		let temp;

		for(let setting in this.settings) {
			let folder = this.gui.addFolder(setting);

			if (this.settings[setting].min) {
				folder.add(this.settings[setting], "min", this.settings[setting].minVal, this.settings[setting].maxVal);
				folder.add(this.settings[setting], "max", this.settings[setting].minVal, this.settings[setting].maxVal);

				folder.onChange(
					this.draw.bind(this)
				);
			}
			else {
				for(let subsetting in this.settings[setting]) {
					if (this.settings[setting][subsetting].type) {
						let subfolder = folder.addFolder(subsetting);
						subfolder.add(this.settings[setting][subsetting], "min", this.settings[setting][subsetting].minVal, this.settings[setting][subsetting].maxVal).onChange(
							this.draw.bind(this)
						);
						subfolder.add(this.settings[setting][subsetting], "max", this.settings[setting][subsetting].minVal, this.settings[setting][subsetting].maxVal).onChange(
							this.draw.bind(this)
						);
					}
					else {
						let a = folder.add(this.settings[setting], subsetting);	
						a.onChange(
							this.draw.bind(this)
						);
					}
				}
			}
		}
	}

	setSVG(selector) {
		this.svg = document.querySelector(selector);
		this.svg.addEventListener("click", this.draw.bind(this));
		this.svg.setAttribute(
			"viewBox",
			`0 0 ${this.boxSize * 4} ${this.boxSize * 4}`
		);
		this.svg.style.strokeWidth = 1.5;
	}

	reset() {
		delete this.element;
		this.element = null;
		this.svg.innerHTML = "";
	}

	draw() {
		this.reset();
		this.settings.hue.value.value = utils.getRandFromRange(
			settings.hue.value.min,
			settings.hue.value.max
		);

		const element = new Flower(
			this.boxSize * 2,
			this.boxSize * 2,
			this.boxSize * 0.5,
			this.boxSize * 0.75,
			this.settings
		);

		this.background = new Rect(
			0,
			0,
			this.boxSize * 4,
			this.boxSize * 4,
			`hsl(${this.settings.hue.value.value}, 20%, 25%)`
		).element;
		this.svg.appendChild(this.background);
		this.element = element.getDOMElement();
		this.svg.appendChild(this.element);
	}
}

class Flower {
	x;
	y;
	width;
	height;
	hue;
	element;
	background;

	constructor(x, y, width, height, settings) {
		this.shapes = [];
		this.x = x;
		this.y = y;
		this.width = width;
		this.height = height;
		this.settings = settings;
		this.petalCount = utils.getRandFromRange(
			settings.petals.value.min,
			settings.petals.value.max
		);
		this.loopCount = Math.floor(utils.getRandFromRange(
			settings.layers.value.min,
			settings.layers.value.max
		));

		this.hue = settings.hue.value.value;
		this.hueStep = utils.getRandFromRange(
			settings.hue.step.min,
			settings.hue.step.max
		);

		this.saturation = utils.getRandFromRange(
			settings.saturation.value.min,
			settings.saturation.value.max
		);
		this.saturationStep = utils.getRandFromRange(
			settings.saturation.step.min,
			settings.saturation.step.max
		);

		this.lightness = utils.getRandFromRange(
			settings.lightness.value.min,
			settings.lightness.value.max
		);
		this.lightnessStep = utils.getRandFromRange(
			settings.lightness.step.min,
			settings.lightness.step.max
		);

		this.widthFraction = utils.getRandFromRange(
			settings.petals.widthScalePerLayer.min,
			settings.petals.widthScalePerLayer.max
		) / 100;
		this.heightFraction = utils.getRandFromRange(
			settings.petals.heightScalePerLayer.min,
			settings.petals.heightScalePerLayer.max
		) / 100;

		this.createFlower();
		this.setDOMElement();
	}

	createFlower() {
		const petalsPeerLoop = Math.floor(this.petalCount / this.loopCount);
		const angleStep = 360 / petalsPeerLoop;

		for (let i = 0; i < this.loopCount; i++) {
			const wBase = this.width * Math..........完整代码请登录后点击上方下载按钮下载查看