对raphael js初步认识
//页面中首先引入
<script src="${ctx }/scripts/raphael.js" type="text/javascript"></script>
1：//点与点之间创建关系 (graffle.js的主要代码内容)
Raphael.fn.connection = function (obj1, obj2, line, bg) {
if (obj1.line && obj1.from && obj1.to) {
line = obj1;
obj1 = line.from;
obj2 = line.to;
}
var bb1 = obj1.getBBox(),
bb2 = obj2.getBBox(),
p = [{x: bb1.x + bb1.width / 2, y: bb1.y - 1},
{x: bb1.x + bb1.width / 2, y: bb1.y + bb1.height + 1},
{x: bb1.x - 1, y: bb1.y + bb1.height / 2},
{x: bb1.x + bb1.width + 1, y: bb1.y + bb1.height / 2},
{x: bb2.x + bb2.width / 2, y: bb2.y - 1},
{x: bb2.x + bb2.width / 2, y: bb2.y + bb2.height + 1},
{x: bb2.x - 1, y: bb2.y + bb2.height / 2},
{x: bb2.x + bb2.width + 1, y: bb2.y + bb2.height / 2}],
d = {}, dis = [];
for (var i = 0; i < 4; i++) {
for (var j = 4; j < 8; j++) {
var dx = Math.abs(p[i].x - p[j].x),
dy = Math.abs(p[i].y - p[j].y);
if ((i == j - 4) || (((i != 3 && j != 6) || p[i].x < p[j].x) && ((i != 2 && j != 7) || p[i].x > p[j].x) && ((i != 0 && j != 5) || p[i].y > p[j].y) && ((i != 1 && j != 4) || p[i].y < p[j].y))) {
dis.push(dx + dy);
d[dis[dis.length - 1]] = [i, j];
}
}
}
if (dis.length == 0) {
var res = [0, 4];
} else {
res = d[Math.min.apply(Math, dis)];
}
var x1 = p[res[0]].x,
y1 = p[res[0]].y,
x4 = p[res[1]].x,
y4 = p[res[1]].y;
dx = Math.max(Math.abs(x1 - x4) / 2, 10);
dy = Math.max(Math.abs(y1 - y4) / 2, 10);
var x2 = [x1, x1, x1 - dx, x1 + dx][res[0]].toFixed(3),
y2 = [y1 - dy, y1 + dy, y1, y1][res[0]].toFixed(3),
x3 = [0, 0, 0, 0, x4, x4, x4 - dx, x4 + dx][res[1]].toFixed(3),
y3 = [0, 0, 0, 0, y1 + dy, y1 - dy, y4, y4][res[1]].toFixed(3);
//var path = ["M", x1.toFixed(3), y1.toFixed(3), "C", x2, y2, x3, y3, x4.toFixed(3), y4.toFixed(3)].join(",");
var point = getStartEnd(obj1, obj2);
var path = getArr(point.start.x, point.start.y, point.end.x, point.end.y, 8);
if (line && line.line) {
line.bg && line.bg.attr({path: path});
line.line.attr({path: path});
} else {
var color = typeof line == "string" ? line : "#000";
return {
bg: bg && bg.split && this.path(path).attr({stroke: bg.split("|")[0], fill: "none", "stroke-width": bg.split("|")[1] || 3}),
line: this.path(path).attr({stroke: color, fill: "none"}),
from: obj1,
to: obj2
};
}
};
//点与点之间的关系线，带箭头 如：“——>”所示
Raphael.fn.drawArr = function (obj) {
var point = getStartEnd(obj.obj1, obj.obj2);
var path1 = getArr(point.start.x, point.start.y, point.end.x, point.end.y, 8);
if (obj.arrPath) {
obj.arrPath.attr({ path: path1 });
} else {
obj.arrPath = this.path(path1);
}
return obj;
};
function getStartEnd(obj1, obj2) {
var bb1 = obj1.getBBox(),
bb2 = obj2.getBBox();
var p = [
{ x: bb1.x + bb1.width / 2, y: bb1.y - 1 },
{ x: bb1.x + bb1.width / 2, y: bb1.y + bb1.height + 1 },
{ x: bb1.x - 1, y: bb1.y + bb1.height / 2 },
{ x: bb1.x + bb1.width + 1, y: bb1.y + bb1.height / 2 },
{ x: bb2.x + bb2.width / 2, y: bb2.y - 1 },
{ x: bb2.x + bb2.width / 2, y: bb2.y + bb2.height + 1 },
{ x: bb2.x - 1, y: bb2.y + bb2.height / 2 },
{ x: bb2.x + bb2.width + 1, y: bb2.y + bb2.height / 2 }
];
var d = {}, dis = [];
for (var i = 0; i < 4; i++) {
for (var j = 4; j < 8; j++) {
var dx = Math.abs(p[i].x - p[j].x),
dy = Math.abs(p[i].y - p[j].y);
if (
(i == j - 4) ||
(((i != 3 && j != 6) || p[i].x < p[j].x) &&
((i != 2 && j != 7) || p[i].x > p[j].x) &&
((i != 0 && j != 5) || p[i].y > p[j].y) &&
((i != 1 && j != 4) || p[i].y < p[j].y))
) {
dis.push(dx + dy);
d[dis[dis.length - 1]] = [i, j];
}
}
}
if (dis.length == 0) {
var res = [0, 4];
} else {
res = d[Math.min.apply(Math, dis)];
}
var result = {};
result.start = {};
result.end = {};
result.start.x = p[res[0]].x;
result.start.y = p[res[0]].y;
result.end.x = p[res[1]].x;
result.end.y = p[res[1]].y;
return result;
}
//得到点之间的path
function getArr(x1, y1, x2, y2, size) {
var angle = Raphael.angle(x1, y1, x2, y2);
var a45 = Raphael.rad(angle - 45);
var a45m = Raphael.rad(angle + 45);
var x2a = x2 + Math.cos(a45) * size;
var y2a = y2 + Math.sin(a45) * size;
var x2b = x2 + Math.cos(a45m) * size;
var y2b = y2 + Math.sin(a45m) * size;
var result = ["M", x1, y1, "L", x2, y2, "L", x2a, y2a, "M", x2, y2, "L", x2b, y2b];
return result;
}
//旋转的进度显示
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,
r = 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] = r.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);
r.remove();
};
}
2：用法
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ page language="java" contentType="text/html;charset=GBK"%>
<%@ include file="/commons/taglibs.jsp" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<html>
<head>
<%@ include file="/commons/meta.jsp" %>
<!-- *******需要的js开始************ -->
<script src="${ctx }/scripts/raphael.js" type="text/javascript"></script>
<script src="${ctx }/scripts/graffle.js" type="text/javascript"> </script>
<link href="${ctx}/css/design.css" rel="stylesheet" type="text/css">
<!-- *******需要的js结束************ -->
<style type="text/css" media="screen"></style>
<title></title>
</head>
<s:form id="form1" action="" theme="simple">
<body>
<p id="coords"></p>
<div id="holder"></div>
<c:forEach items="${repinfoList}" varStatus="status">
<div id="test${repinfoList[status.index].repinfoid}" class="test">
${repinfoList[status.index].repname}</div>
<input id="desc${repinfoList[status.index].repinfoid}" type="hidden" value="${repinfoList[status.index].replinkdesc}"/>
<input id="asc${repinfoList[status.index].repinfoid}" type="hidden" value="${repinfoList[status.index].replinkasc}"/>
</c:forEach>
</body>
<input id="repinfoid" type="hidden"/>
<input id="repinfofid" type="hidden"/>
<input id="replinkdesc" type="hidden"/>
<input id="replinkasc" type="hidden"/>
</s:form>
</html>
<script language="javascript">
var el;
var count=${fn:length(repinfoList)};
window.onload = function () {
var dragger = function () {
this.ox = this.type == "rect" ? this.attr("x") : this.attr("cx");
this.oy = this.type == "rect" ? this.attr("y") : this.attr("cy");
},
move = function (dx, dy) {
var att = this.type == "rect" ? {x: this.ox + dx, y: this.oy + dy} : {cx: this.ox + dx, cy: this.oy + dy};
this.attr(att);
//给设备增加文本信息
$("#test" + this.data("repinfoid")).offset({ top: this.oy + dy + 65, left: this.ox + dx + 40 });
for (var i = connections.length; i--;) {
r.connection(connections[i]);
}
r.safari();
},
up = function () {
//拖动结束后更新坐标位置
/** $.ajax({
type: "POST",
url: "${ctx}/repAction!toRepinfoListforUpdate.action",
data: "repinfoid="+this.data("repinfoid")+"&repx="+this.attr("x")+"&repy="+this.attr("y"),
success: function(msg){
}
});**/
},
r = Raphael("holder", 1240, 800),
connections = [],
//在这里产生要画出来的对象====开始=====
shapes = new Array(count);
<c:forEach var="repinfo" items="${repinfoList}" varStatus="status">
shapes[${status.index}]=r.rect(${repinfo.repx}, ${repinfo.repy}, 100,40, 5)
.data("repinfoid", ${repinfo.repinfoid})
.data("repinfofid", ${repinfo.repinfofid})
.data("repx", ${repinfo.repx})
.data("repy", ${repinfo.repy})
.data("openstatus", ${repinfo.openstatus})
.dblclick(function(){
openDivWin('${ctx }/repAction!toRepinfoView.action?repinfoid='+this.data("repinfoid")+"&replinkid="+${replinkid},550,250);
});
$("#test"+${repinfo.repinfoid}).offset({ top: ${repinfo.repy} + 65, left: ${repinfo.repx} + 40 });
</c:forEach>
for (var i = 0, ii = shapes.length; i < ii; i++) {
var color = Raphael.getColor();
shapes[i].attr({fill: "green", stroke: color, "stroke-width": 3, cursor: "move"});
//====================判断是否是开启状态还是关闭状态====================
if(shapes[i].data("openstatus")!=0){
shapes[i].attr({"fill-opacity": 1});
}else{
shapes[i].attr({"fill-opacity": 0});
}
//====================在这里区分对象的连接关系开始====================
for(var j = i +1 ; j < shapes.length ; j ++) {
if(shapes[i].data("repinfoid")== shapes[j].data("repinfofid")) {
//父指向子
connections.push(r.connection(shapes[i], shapes[j], "green", "green|5"));
//存储节点间的顺序
}
}
//在这里区分对象的连接关系===结束
shapes[i].drag(move, dragger, up);
}
};
</script>
3：css样式：
body {
background: #333;
color: #fff;
font: 300 100.1% "Helvetica Neue", Helvetica, "Arial Unicode MS", Arial, sans-serif;
}
#holder {
padding-top:10px;padding-left:20px;min-height:600px;height:auto;
}
#copy {
bottom: 0;
font: 300 .7em "Helvetica Neue", Helvetica, "Arial Unicode MS", Arial, sans-serif;
position: absolute;
right: 1em;
text-align: right;
}
#copy a {
color: #fff;
}
test{
position: absolute;
width: 80px;
height: 30px;
top: 0px;
z-index: 0;
}
4：如果想用进度显示
<div id="msgCircle" style="padding-top:30px;padding-left:20px;font-size:18px;display:none">
<span id="span_msg" style="display:none">正在检测，请耐心等待...</span>
</div>
<script language="javascript">
window.onload = function () {
var remove = spinner("msgCircle", 10, 20, 10, 6, "#fff");
}
</script>
如果让其进度不显示，则在js函数中用下面三行即可实现。
remove();
remove=spinner("msgCircle", 10, 10, 10, 6, "#fff");
$("#span_msg").html("已检测完毕");