Web流程图绘制使用raphael

矫情吗；* 2021-09-10 14:44 385阅读 0赞

[林炳文Evankaka][Evankaka]原创作品。转载请注明出处[http://blog.csdn.net/evankaka][http_blog.csdn.net_evankaka]

摘要：本文要实现一个流程图的绘制，最终的目标是实现流程图的自动绘制，并可进行操作，直接点击流程图上对应的方框就可以让后台跑相应的程序。

[本文工程免费下载][Link 1]

### 一、插件介绍 ###

1、图形绘制raphael

其中图形绘制使用了raphael，下载地址：http://raphaeljs.com，它的功能非常强大。

中文帮助教程：http://html5css3webapp.com/raphaelApi.htm\#Paper.text

其中有一些DEMO如下：

![20150914152953038][]

2、鼠标右键菜单栏弹出smartMenu

教程及下载地址： http://www.cnblogs.com/ATree/archive/2011/06/30/jQuery-smartMenu-javascript.html

3、字体大小变化利器插件jquery.fontFlex

随着页面的放大或者缩小，字体也跟随着放大或者缩小。当然，可以设置一个最大值，一个中间值和一个最小值。此效果多半应用于响应式页面中，或者需要适用多版本终端浏览器的页面中

### 二、使用 ###

1、首先，来看看要实现的流程图的样子。

![20150914145548285][]

2、代码实现

这里其实就是把上面的插件都引用进来，然后其它的就是用JS不断画椭圆、直线箭头、方框等。

画好之后，添加文字，给方框添加右键点击事件

<!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <link href="smartMenu.css" rel="stylesheet">
    <script src="jquery-1.8.1.min.js"></script>
    <script src="jQuery.fontFlex.js"></script>
    <script src="jquery-smartMenu.js"></script>
    <script src="raphael-min.js"></script>
    <script src="jQuery.fontFlex.js"></script>
    
    <style>
    body div{ background:#333333;}
    #paperBox1{ background:#70AD47;}
    .exp1 {color:#FFFFFF;line-height:80px;} 
    rect{cursor:pointer}
    text{cursor:pointer}
    #spinner{ position:absolute;
    left:10px;top:10px;} 
    </style>
    </head>
    <body>
    	<div>
    		<h1 class="exp1">
    			<center>任务计划流程</center>
    		</h1>
    		
    		<div id="paper">
    		<div id="paperBox1"></div>		
    		<div id="spinner"></div>		
    		</div>		
    	</div>
    </body>
    <script type="text/javascript">
    $('h1').fontFlex(10, 120, 40);//字体大小自适应
    console.log(Raphael.svg);//查看是否支持Raphael,true为支持
    var window_w = $(window).width();//浏览器窗口可见宽度
    var window_h = $(window).height();浏览器窗口可见高度
    var rect_w = window_w / 8;//矩形的宽
    var rect_h = window_h / 20;//矩形的高
    var rect_r = rect_w / 15;//矩形圆角
    var arrow_h = 35; // 箭头高
    console.log(window_w);
    console.log(window_h);
    console.log(rect_w);
    console.log(rect_h);
    //创建一个画布
    var paper = new Raphael("paper",window_w,window_h + 200);  
    //直线箭头
    var arrow1 = paper.path("M21.786,12.876l7.556-4.363l-7.556-4.363v2.598H2.813v3.5h18.973V12.876z" ).attr({fill: "#5B9BD5", stroke: "none"});
    var arrow2 = arrow1.clone();
    var arrow3_1_1 = arrow1.clone();
    var arrow3_1_2 = arrow1.clone();
    
    var arrow3_2_1 = arrow1.clone();
    var arrow3_2_2 = arrow1.clone();
    var arrow3_2_3 = arrow1.clone();
    
    var arrow3_3_1 = arrow1.clone();
    var arrow3_3_2 = arrow1.clone();
    var arrow3_3_3 = arrow1.clone();
    
    var arrow3_4_1 = arrow1.clone();
    var arrow3_4_2 = arrow1.clone();
    var arrow3_4_3 = arrow1.clone();
    
    var arrow3 = arrow1.clone();
    var arrow4 = arrow1.clone();
    var arrow5 = arrow1.clone();
    var arrow6 = arrow1.clone();
    
    var attr = {
                    fill: "#70AD47",//填充
                    stroke: "none",//边框
                    "stroke-width": 1,
                    "stroke-linejoin": "round"
                };
    //画圆角矩形     
    var rect1 = paper.rect((window_w-rect_w)*0.5,0,rect_w,rect_h,rect_r).attr(attr);
    var rect2 = moveRectToRectDown(paper,rect1);
    
    var rect3_1_1 = paper.rect((window_w-rect_w)*0.2,( arrow_h  + rect_h ) * 2.5,rect_w,rect_h,rect_r).attr(attr);
    var rect3_1_2 = moveRectToRectDown(paper,rect3_1_1);
    var rect3_1_3 = moveRectToRectDown(paper,rect3_1_2);
    
    var rect3_2_1 = paper.rect((window_w-rect_w)*0.4 ,( arrow_h  + rect_h ) * 2.5,rect_w,rect_h,rect_r).attr(attr);
    var rect3_2_2 = moveRectToRectDown(paper,rect3_2_1);
    var rect3_2_3 = moveRectToRectDown(paper,rect3_2_2);
    var rect3_2_4 = moveRectToRectDown(paper,rect3_2_3);
    
     var rect3_3_1 = paper.rect(window_w-(window_w-rect_w)*0.4-rect_w,( arrow_h  + rect_h ) * 2.5,rect_w,rect_h,rect_r).attr(attr);
     var rect3_3_2 = moveRectToRectDown(paper,rect3_3_1);
     var rect3_3_3 = moveRectToRectDown(paper,rect3_3_2);
     var rect3_3_4 = moveRectToRectDown(paper,rect3_3_3);
     
     var rect3_4_1 = paper.rect(window_w-(window_w-rect_w)*0.2-rect_w,( arrow_h  + rect_h ) * 2.5,rect_w,rect_h,rect_r).attr(attr);
     var rect3_4_2 = moveRectToRectDown(paper,rect3_4_1);
     var rect3_4_3 = moveRectToRectDown(paper,rect3_4_2);
     var rect3_4_4 = moveRectToRectDown(paper,rect3_4_3);
    
    //文字描述
    insertRectText(paper,rect1,"1.等待激活");
    insertRectText(paper,rect2,"2.日切");
    insertRectText(paper,rect3_1_1,"下载文件信息信息");
    
    
    //直接箭头移动
    moveArrowToRectDown(rect1,arrow1,90,2,null,null);
    moveArrowToRectDown(rect2,arrow2,90,2,null,null);
    
    moveArrowToRectDown(rect3_1_1,arrow3_1_1,90,2,null,null);
    moveArrowToRectDown(rect3_1_2,arrow3_1_2,90,2,null,null);
    
    moveArrowToRectDown(rect3_2_1,arrow3_2_1,90,2,null,null);
    //moveArrowToRectDown(rect3_2_2,arrow3_2_2,90,2,null);
    moveArrowToRectDown(rect3_2_3,arrow3_2_3,90,2,null,null);
    
    moveArrowToRectDown(rect3_3_1,arrow3_3_1,90,2,null,null);
    moveArrowToRectDown(rect3_3_2,arrow3_3_2,90,2,null,null);
    moveArrowToRectDown(rect3_3_3,arrow3_3_3,90,2,null,null);
    
    
    moveArrowToRectDown(rect3_4_1,arrow3_4_1,90,2,null,null);
    moveArrowToRectDown(rect3_4_2,arrow3_4_2,90,2,null,null);
    moveArrowToRectDown(rect3_4_3,arrow3_4_3,90,2,null,null);
    //画边框
    var rectbox3 = drawRectToRect(paper,rect3_1_1,rect3_4_4,( arrow_h  + rect_h ) * 0.5);
    var rectbox3_1 = drawRectToRect(paper,rect3_1_1,rect3_1_3,( arrow_h  + rect_h ) * 0.15);
    var rectbox3_2_1 = drawRectToRect(paper,rect3_2_1,rect3_2_2,( arrow_h  + rect_h ) * 0.05);
    var rectbox3_2_2 = drawRectToRect(paper,rect3_2_3,rect3_2_4,( arrow_h  + rect_h ) * 0.05);
    var rectbox3_3 = drawRectToRect(paper,rect3_3_1,rect3_3_4,( arrow_h  + rect_h ) * 0.15);
    
    //对应从积分计算到完
    moveArrowToRectDown(rectbox3,arrow3,90,2,null,18);//最大外框下方箭头
    moveArrowToRectDown(rectbox3_2_1,arrow3_2_2,90,1.1,-8,5);
    var xx = Math.round($(rectbox3.node).attr("y"))*1+$(rectbox3.node).attr("height")*1+15+arrow_h;
    console.log(xx);
    var rect4 = paper.rect((window_w-rect_w)*0.5, xx ,rect_w,rect_h,rect_r).attr(attr);
    moveArrowToRectDown(rect4,arrow4,90,2,null,null);
    var rect5_1 = paper.rect((window_w-rect_w)*0.4 ,( arrow_h  + rect_h ) * 8.5 ,rect_w,rect_h,rect_r).attr(attr);
    var rect5_2 = paper.rect(window_w-(window_w-rect_w)*0.4-rect_w,( arrow_h  + rect_h ) * 8.5,rect_w,rect_h,rect_r).attr(attr);
    var rectbox5 = drawRectToRect(paper,rect5_1,rect5_2,( arrow_h  + rect_h ) * 0.3);
    moveArrowToRectDown(rectbox5,arrow5,90,2,null,18);//外框下方箭头
    var rect6 = paper.rect((window_w-rect_w)*0.5 ,( arrow_h  + rect_h ) * 10 ,rect_w,rect_h,rect_r).attr(attr);
    moveArrowToRectDown(rect6,arrow6,90,2,null,null);//外框下方箭头
    var rect6 = paper.rect((window_w-rect_w)*0.5 ,( arrow_h  + rect_h ) * 11 ,rect_w,rect_h,rect_r).attr(attr);
    
    //arrow2.transform("t650,300r90s4")
    //给矩形增加居中的文字
    function insertRectText(root,rectangle,str){
    	var x = Math.round($(rectangle.node).attr("x"));
    	var y = Math.round($(rectangle.node).attr("y"));
    	var w = $(rectangle.node).attr("width");
    	var h = $(rectangle.node).attr("height");
    	var textStr = root.text(x + w / 2,y + h / 2,str).attr({fill:"#FFFFFF"});
    	textStr.attr({
             "fill":"#FFFFFF",
             "font-size":"15px",
         });
    	rectangle.data("cooperative", textStr);
    }
    //将箭头移动到矩形下方
    function moveArrowToRectDown(rectangle,arrowbox,angle,scale,offset_x,offset_y){
    	var angle = angle == null ?0:angle; //默认旋转90度
    	var scale = scale == null ?1:scale;
    	var offset_y =offset_y ==null?0:offset_y;
    	var offset_x =offset_x ==null?0:offset_x;
    	var x = Math.round($(rectangle.node).attr("x"));
    	var y = Math.round($(rectangle.node).attr("y"));
    	var w = $(rectangle.node).attr("width");
    	var h = $(rectangle.node).attr("height");
    	console.log("x=" + x);
    	console.log("y=" + y);
    	console.log("w=" + w);
    	console.log("h=" + h);
    	var xNew = x + w*0.5 -8*scale + offset_x;
    	var yNew = y + h*1 + offset_y;
    	var pos = "t"+ xNew + "," + yNew + 'r' + angle + 's' + scale;
    	console.log(pos);
    	arrowbox.transform(pos);	
    }
    
    //将一个矩形移动到另一个矩形下方
    function moveRectToRectDown(root,rectangle){
    	var x = Math.round($(rectangle.node).attr("x"));
    	var y = Math.round($(rectangle.node).attr("y"));
    	var w = Math.round($(rectangle.node).attr("width"));
    	var h = Math.round($(rectangle.node).attr("height"));
        var r = $(rect1.node).attr("rx");
    	var rectNew = root.rect(x,y + h + arrow_h,w,h,r).attr(attr);
    	return rectNew;
    }
    
    
    function drawRectToRect(root,rectangle1,rectangle2,offset){
    	var x1 = Math.round($(rectangle1.node).attr("x"));
    	var y1 = Math.round($(rectangle1.node).attr("y"));
    	
    	var x2 = Math.round($(rectangle2.node).attr("x"));
    	var y2 = Math.round($(rectangle2.node).attr("y"));
    	var w2 = Math.round($(rectangle2.node).attr("width"));
    	var h2 = Math.round($(rectangle2.node).attr("height"));
    	x2 += w2;
    	y2 += h2;	
    	return drawRect(root,x1,y1,x2,y2,offset);
    }
    //在一个矩形外画矩形,传入左上角和右下角的位置
    function drawRect(root,x1,y1,x2,y2,offset){
    	var offset =offset == null?0:offset;
    	var x = x1 - offset;
    	var y = y1 - offset;
    	var w = x2 - x1 + 2*offset;
    	var h = y2 - y1+ 2*offset;
    	var rectbox = root.rect(x,y,w,h).attr({stroke: "#F4B183","stroke-width": 1,});	
    	return rectbox;
    }
    
    //更新圆盘
    var spinner;
    function spinner(holderid, R1, R2, count, stroke_width, colour) {
        var sectorsCount = count || 12,
            color = colour || "#fff",
            width = stroke_width || 15,
            r1 = Math.min(R1, R2) || 35,
            r2 = Math.max(R1, R2) || 60,
            cx = r2 + width,
            cy = r2 + width,
            spinner = Raphael(holderid, r2 * 2 + width * 2, r2 * 2 + width * 2),
            
            sectors = [],
            opacity = [],
            beta = 2 * Math.PI / sectorsCount,
    
            pathParams = {stroke: color, "stroke-width": width, "stroke-linecap": "round"};
            Raphael.getColor.reset();
        for (var i = 0; i < sectorsCount; i++) {
            var alpha = beta * i - Math.PI / 2,
                cos = Math.cos(alpha),
                sin = Math.sin(alpha);
            opacity[i] = 1 / sectorsCount * i;
            sectors[i] = spinner.path([["M", cx + r1 * cos, cy + r1 * sin], ["L", cx + r2 * cos, cy + r2 * sin]]).attr(pathParams);
            if (color == "rainbow") {
                sectors[i].attr("stroke", Raphael.getColor());
            }
        }
        var tick;
        (function ticker() {
            opacity.unshift(opacity.pop());
            for (var i = 0; i < sectorsCount; i++) {
                sectors[i].attr("opacity", opacity[i]);
            }
           // r.safari();
            tick = setTimeout(ticker, 1000 / sectorsCount);
        })();
        return function () {
            clearTimeout(tick);
            spinner.remove();
        };
    }
    
    
    
    rect1.node.onclick = function () {
    	rect1.attr("fill", "red");
    	var x = Math.round($(rect1.node).attr("x"));
    	var y = Math.round($(rect1.node).attr("y"));
    	var w = $(rect1.node).attr("width");
    	var h = $(rect1.node).attr("height");
    	var xx = (x*1 + w*1)+"px";
    	var yy = (80 + y+ h/2 -20 )+"px";
    	console.log("xx="+xx);
    	var remove = spinner("spinner",10, 20, 8, 5, "#FFFF00");
    	$('#spinner').css("left",xx);
    	$('#spinner').css("top",yy);
    };
    function change(){
    	var x = Math.round($(rect1.node).attr("x"));
    	var y = Math.round($(rect1.node).attr("y"));
    	var w = $(rect1.node).attr("width");
    	var h = $(rect1.node).attr("height");
    	var xx = (x*1 + w*1)+"px";
    	var yy = (80 + y+ h/2 -20 )+"px";
    	console.log("xx="+xx);
    	//remove();
    	var remove = spinner("spinner",10, 20, 8, 5, "#FFFF00");
    	$('#spinner').css("left",xx);
    	$('#spinner').css("top",yy);
    }
    	
    var imageMenuData = [
    [{
      text: "方法一",
      func: function() {
          alert("方法一")
          rect1.attr("fill", "blue");
         // remove();
          change()
      }
    }, {
      text: "方法二",
      func: function() {
    	  alert("方法二")
    	  rect1.attr("fill", "yellow");
         // remove();
          change()
      }
    }],
    [{
      text: "方法三",
      func: function() {
    	  alert("方法三")
    	  rect1.attr("fill", "#FF84FF");
         // remove();
          change()
      }
    }]
    ];
    //增加右键菜单
    $(rect1.node).smartMenu(imageMenuData, {
    name: "image"    
    });
    $("rect").smartMenu(imageMenuData, {
    	name: "image"    
    	}); 
    $('text').fontFlex(15, 50, 90);//字体大小自适应
    //当浏览器窗口大小改变时，设置显示内容的高度  
                window.οnresize=function(){  
                	//paper.safari()
                }  
    
    </script>
    </html>

最终效果展示：

![20150914152750769][]

![20150914150612754][]

右键点击：

![20150914150632643][]

方法调用后结果：

![20150914150703294][]

[本文工程免费下载][Link 1]

[Evankaka]: http://my.csdn.net/?ref=toolbar
[http_blog.csdn.net_evankaka]: http://blog.csdn.net/evankaka
[Link 1]: http://download.csdn.net/detail/evankaka/9149145
[20150914152953038]: /images/20210811/6aadc7c4a4a34cf68c8aae6c9b7d0feb.png
[20150914145548285]: /images/20210811/1e645acfca5b4c5daae788c1d3cabb28.png
[20150914152750769]: /images/20210811/f538fedf627a485aaa42e9498ac0ad6b.png
[20150914150612754]: /images/20210811/d9201989de2e46238e8f33bb39631ec6.png
[20150914150632643]: /images/20210811/dd7d7abdf1944470a930b951019de390.png
[20150914150703294]: /images/20210811/5c07aa4c52554bc6bfb619d4865bdb98.png