processingjs——数据排序可视化

系统管理员 2021-05-12 11:55 469阅读 0赞

1、sort.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
    <html>
    	<head>
    		<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
    		<title>ProcessingJS 排序动画演示</title>
    		<style type="text/css">
    body { overflow: hidden; }
    .append-bottom label, .append-bottom input, .append-bottom span { margin-left: 40px; }
    #panel { float: left; }
    #code { float: left; width: 280px; margin: 0 5px 0 5px; padding: 10px 0 0 10px; background: #141414; color: #DAD085; overflow: auto; }
    </style>
    		<script type="text/javascript" src="./jqueyr-1.6.4.js"></script>
    		<script type="text/javascript" src="./pjs.js"></script>
    		<script type="text/javascript" src="sort.js"></script>
    		<script type="text/javascript">
    var task = null;
    $(function() {
    	$(window).resize(function() {
    		Processing.getInstanceById("panel")
    			.size($(window).width() - 320, $(window).height() - 145);
    		$("#code").height($(window).height() - 155);
    	});
    	$("#panel").width($(window).width() - 320).height($(window).height() - 145);
    	$("#code").height($(window).height() - 155)
    	$("#restart").click(function() {
    		task && task.stop();
    		task = $.extend({
    			sort: SortAlgorithm[$("#algorithm").val()]
    		}, init($("#capacity").val()), controller($("#speed").val())).begin();
    		$("#code").text(task.sort.toString());
    	}).click();
    });
    
    function init(capacity) {
    	var factor = 100 / capacity;
    	var data = [];
    	for(var i = 1; i <= capacity; i++)
    		data.push(Math.round(i * factor * 100)/100);
    	for(var i = data.length; i > 0; i--)
    		data.swap(i-1, Math.round(Math.random() * i));
    	var state = [];
    	$.each(data, function() { state.push([this, false]); });
    	return { data: data, state: state };
    }
    
    function controller(speed) {
    	var interval = 2000 / speed;
    	return {
    		begin: function() {
    			this.queue = [];
    			this.compareCount = 0;
    			this.swapCount = 0;
    			this.insertCount = [];
    			this.sort();
    			var info = "比较"+this.compareCount+"次，交换"+this.swapCount+"次";
    			if(this.insertCount.length > 0) {
    				var count = 0;
    				$.each(this.insertCount, function() { count += this; });
    				info += "，插入"+this.insertCount.length+"次，平均位移为"+(count/this.insertCount.length).toFixed(2);
    			}
    			$("#info").text(info);
    			this.next();
    			return this;
    		},
    		stop: function() {
    			this.queue = [];
    			clearTimeout(this.timer);
    		},
    		next: function() {
    			var self = this;
    			this.timer = setTimeout(function() {
    				self.show();
    			}, interval);
    		},
    		show: function() {
    			for(var i in this.state)
    				this.state[i][1] = false;
    			var task = this.queue.shift();
    			if(task) {
    				this.state[task[1]][1] = this.state[task[2]][1] = true;
    				if(task[0] == "SWAP") {
    					this.state.swap(task[1], task[2]);
    				} else if(task[0] == "INSERT") {
    					this.state.insertBefore(task[1], task[2]);
    				} else if(task[0] == "HIGHLIGHT3") {
    					this.state[task[3]][1] = true;
    				}
    				this.next();
    			}
    		},
    		count: function() {
    			return this.data.length;
    		},
    		gt: function(x, y, pivot) {
    			this.queue.push(typeof(pivot) == "undefined" ? ["HIGHLIGHT2", x, y] : ["HIGHLIGHT3", x, y, pivot]);
    			this.compareCount++;
    			return this.data[x] > this.data[y];
    		},
    		lt: function(x, y, pivot) {
    			this.queue.push(typeof(pivot) == "undefined" ? ["HIGHLIGHT2", x, y] : ["HIGHLIGHT3", x, y, pivot]);
    			this.compareCount++;
    			return this.data[x] < this.data[y];
    		},
    		swap: function(x, y) {
    			this.queue.push(["SWAP", x, y]);
    			this.swapCount++;
    			this.data.swap(x, y);
    		},
    		insertBefore: function(from, to) {
    			this.queue.push(["INSERT", from, to]);
    			this.insertCount.push(this.data.insertBefore(from, to));
    		}
    	};
    }
    </script>
    	</head>
    	<body>
    		<div class="box">ProcessingJS 排序动画演示</div>
    		<div class="append-bottom">
    			<label for="algorithm">算法：</label>
    			<select id="algorithm">
    				<option value="bubble" selected="selected">Bubble</option>
    				<option value="shaker">Shaker</option>
    				<option value="insertion">Insertion</option>
    				<option value="selection">Selection</option>
    				<option value="shell">Shell</option>
    				<option value="heap">Heap</option>
    				<option value="merge">Merge</option>
    				<option value="quick">Quick</option>
    			</select>
    			<label for="capacity">数据量：</label>
    			<select id="capacity">
    				<option value="10">10</option>
    				<option value="30" selected="selected">30</option>
    				<option value="50">50</option>
    				<option value="100">100</option>
    				<option value="200">200</option>
    			</select>
    			<label for="speed">速度：</label>
    			<select id="speed">
    				<option value="5">5</option>
    				<option value="30" selected="selected">30</option>
    				<option value="50">50</option>
    				<option value="100">100</option>
    				<option value="200">200</option>
    			</select>
    			<input type="button" id="restart" value="重新开始" />
    			<span id="info"></span>
    		</div>
    		<hr />
    		<canvas id="panel" data-processing-sources="panel.pde"></canvas>
    		<pre id="code"></pre>
    	</body>
    </html>

2、sort.js

3、panle.pde:panle

void setup() {
    	size($(window).width() - 320, $(window).height() - 145);
    	frameRate(30);
    }
    
    void draw() {
    	if(!task)
    		return;
    	background(255);
    	stroke(255);
    	float cw = width / task.state.length;
    	for(int i = 0; i < task.state.length; i++) {
    		if(task.state[i][1])
    			fill(174, 228, 150);
    		else
    			fill(117, 192, 238);
    		float ch = map(task.state[i][0], 0, 100, 0, height);
    		rect(i*cw, height-ch, cw, ch);
    	}
    }

其次，还需要引入jquery和processingjs库，之后将这些文件放到nginx后，访问即可。

![70][]

[70]: /images/20210511/0ad3299b050f4314a2b3e566d16ab720.png