Web流程图绘制使用raphael

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。

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：

Web流程图绘制使用raphael

2、鼠标右键菜单栏弹出smartMenu

教程及下载地址：【jQuery】smartMenu右键自定义上下文菜单插件(似web QQ)

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。

Web流程图绘制使用raphael

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><!-- 在这上面画图 --><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：

Web流程图绘制使用raphael

右键点击：

Web流程图绘制使用raphael

方法调用后结果：

Web流程图绘制使用raphael

原文：http://blog.csdn.net/evankaka/article/details/48439017

转自：Web流程图绘制使用raphael