效果图
使用html+css+js,无图片,没用Canvas
demo:
<!DOCTYPE html>
<html>
<head>
<link href="draw.css" rel="stylesheet" />
<script src="draw.js" type="text/javascript"></script>
</head>
<body>
<div class="diamond" style="top:100px;left: 100px;">
<span class="diamond-text">开始</span>
</div>
<!-- 下箭头 -->
<div class="arrow-down" style="top:195px;left:140px;">
<span></span>
</div>
<div class="rectangle" style="top:275px;left: 100px;">
<span class="rectangle-text">步骤一</span>
</div>
<div class="arrow-down" style="top:325px;left:140px;">
<span></span>
</div>
<div class="rectangle" style="top:405px;left: 100px;">
<span class="rectangle-text">步骤二</span>
</div>
<div class="arrow-down" style="top:455px;left:140px;">
<span></span>
</div>
<div class="diamond" style="top:550px;left: 100px;">
<span class="diamond-text">分叉节点</span>
</div>
<div>
<div class="arrow-down" style="top:645px;left:140px;">
<span></span>
</div>
<div class="rectangle" style="top:725px;left: 100px;">
<span class="rectangle-text">步骤三</span>
</div>
</div>
<div>
<div class="arrow-horizontal-down" style="top:590px;left:195px;">
<div></div>
<span></span>
</div>
<div class="rectangle" style="top:725px;left: 230px;">
<span class="rectangle-text">步骤四</span>
</div>
</div>
</body>
</html>
css:
/* 椭圆 */
.ellipse {
width: 100px;
height: 50px;
background-color: #6495ED;
border-radius: 100px;
text-align: center;
position: absolute;
}
.ellipse-text {
width: 80px;
height: 50px;
margin-top: 10px;
}
/* 菱形,长宽91.28 */
.diamond {
width: 80px;
height: 80px;
transform: rotate(45deg);
background-color: #bfa;
position: absolute;
}
.diamond-text{
width: 60px;
margin-top: 10px;
display: inline-block;
transform: rotate(-45deg);
text-align: center;
}
/* 长方形 */
.rectangle{
width: 92px;
height: 50px;
border: 1px;
border-color: black;
background-color: aquamarine;
text-align: center;
position: absolute;
}
/* 向下箭头 */
.arrow-down {
width: 2px;
height: 80px;
background-color: black;
position: absolute;
}
.arrow-down span {
width: 0;
height: 0;
border-left: 5px solid transparent;
border-right: 5px solid transparent;
border-top: 10px solid black;
position: relative;
top:81px;left:-4px;
}
/* 折线箭头 */
.arrow-horizontal-down {
width: 150px;
height: 2px;
background-color: black;
position: absolute;
z-index: -1;
}
.arrow-horizontal-down div{
width: 2px;
height: 125px;
left:150px;
background-color: black;
position: relative;
}
.arrow-horizontal-down span {
width: 0;
height: 0;
border-left: 5px solid transparent;
border-right: 5px solid transparent;
border-top: 10px solid black;
position: relative;
top:10px;left:146px;
}
/* 横线 */
.horizontal-line{
width: 100px;
height: 2px;
background-color: black;
position: absolute;
z-index: -1;
}
js 代码 可以动态生成流程图
// json 节点数据
// let data = 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t(1)","apptid":"ihrm_attendanceleave","children":[1374],"LengtheningTime":0},{"id":1697,"name":"HRBPIII","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1378],"LengtheningTime":0},{"id":1698,"name":"HRBPIV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1382],"LengtheningTime":0},{"id":1699,"name":"人力资源备案","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1552],"LengtheningTime":0},{"id":1700,"name":"HRBPV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1557],"LengtheningTime":0},{"id":1701,"name":"发行中心负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1612],"LengtheningTime":0},{"id":1702,"name":"发行中心负责人II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1696],"LengtheningTime":0},{"id":1703,"name":"发行中心负责人III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1697],"LengtheningTime":0},{"id":1704,"name":"发行中心负责人IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1698],"LengtheningTime":0},{"id":1705,"name":"发行中心负责人V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1700],"LengtheningTime":0},{"id":1928,"name":"美术负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2265],"LengtheningTime":0},{"id":1929,"name":"美术负责人II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2266],"LengtheningTime":0},{"id":1930,"name":"美术负责人III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2267],"LengtheningTime":0},{"id":1931,"name":"美术负责人IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2268],"LengtheningTime":0},{"id":1932,"name":"美术负责人V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2269],"LengtheningTime":0},{"id":1974,"name":"HRBPI","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1975],"LengtheningTime":0},{"id":1975,"name":"人力与行政负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1981],"LengtheningTime":0},{"id":1976,"name":"人力资源备案II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2067],"LengtheningTime":0},{"id":1979,"name":"人力资源备案IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2175],"LengtheningTime":0},{"id":1980,"name":"人力资源备案V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2176],"LengtheningTime":0},{"id":1981,"name":"史延斌I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1403],"LengtheningTime":0},{"id":1982,"name":"史延斌II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1976],"LengtheningTime":0},{"id":1983,"name":"史延斌III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2068],"LengtheningTime":0},{"id":1984,"name":"人力资源备案III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2174],"LengtheningTime":0},{"id":1985,"name":"史延斌IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1979],"LengtheningTime":0},{"id":1986,"name":"史延斌V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1980],"LengtheningTime":0},{"id":2067,"name":"部门助理备案","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1613],"LengtheningTime":0},{"id":2068,"name":"部门助理备案","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1984],"LengtheningTime":0},{"id":2107,"name":"程序中心副总经理I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1404],"LengtheningTime":0},{"id":2108,"name":"程序中心副总经理II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1405],"LengtheningTime":0},{"id":2109,"name":"程序中心副总经理III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1406],"LengtheningTime":0},{"id":2110,"name":"程序中心副总经理IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1407],"LengtheningTime":0},{"id":2111,"name":"程序中心副总经理V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1556],"LengtheningTime":0},{"id":2120,"name":"程序中心副总经理","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2122],"LengtheningTime":0},{"id":2122,"name":"程序BP1","type":"diamond","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2123,2125,2159,2161],"LengtheningTime":0},{"id":2123,"name":"人力与行政负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2179],"LengtheningTime":0},{"id":2125,"name":"程序中心总经理","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","childre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let data = 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// 偏移数值
let offsetNum = {
ellipseTop :51,
ellipseLeft :40,
diamondTop :95,
diamondLeft :40,
rectangleTop :50,
rectangleLeft :40,
arrowTop :80,
arrowLeft :0,
brokenLineTop:135,
brokenLineLeft:80
}
// 开始创建
function BeginDraw(){
CreateNode(data[0],100,100);
}
// 循环创建子节点
function CreateChildNode(lastNode,lastTop,lastLeft){
// 一个子节点
if(lastNode.children.length > 0){
CreateVerticalArrow(lastNode,lastTop,lastLeft);
}
// 多个子节点
if(lastNode.children.length > 1){
let beginTop = GetOffsetTop(lastNode) / 2 + lastTop - 10;
let beginLeft = GetOffsetLeft(lastNode) * 2 + lastLeft + 15;
for (let c = 1;c < lastNode.children.length;c++) {
CreateBrokenArrow(beginTop,beginLeft,lastNode.children[c]);
beginLeft = beginLeft + 140;
}
}
}
// 创建节点
function CreateNode(node,top,left){
let div = document.createElement("div");
div.className = node.type;
div.style.top = top + "px";
div.style.left = left + "px";
let span = document.createElement("span");
span.innerText = node.name;
span.className = node.type + "-text";
div.appendChild(span);
div.onclick = function() {
// 使用eval执行方法
eval(node.click);
};
document.body.append(div);
CreateChildNode(node,top,left);
}
// 创建竖线箭头+节点
function CreateVerticalArrow(lastNode,nodeTop,nodeLeft){
// 竖线箭头top
let arrowtop = GetOffsetTop(lastNode) + nodeTop;
// 竖线箭头left
let arrowleft = GetOffsetLeft(lastNode) + nodeLeft;
let div = document.createElement("div");
div.className = "arrow-down";
div.style.top = arrowtop + "px";
div.style.left = arrowleft + "px";
let span = document.createElement("span");
div.appendChild(span);
document.body.append(div);
for (let key in data) {
if(lastNode.children[0] == data[key].id){
// 新节点top
let newNodeTop = arrowtop + offsetNum.arrowTop;
if(data[key].type == "diamond"){
newNodeTop = newNodeTop + 15;
}
CreateNode(data[key],newNodeTop,nodeLeft);
}
}
}
// 创建折线箭头+节点
function CreateBrokenArrow(arrowTop,arrowLeft,childnum){
let div = document.createElement("div");
div.className = "arrow-horizontal-down";
div.style.top = arrowTop + "px";
div.style.left = (arrowLeft - 70) + "px";
let ndiv = document.createElement("div");
let span = document.createElement("span");
div.appendChild(ndiv);
div.appendChild(span);
document.body.append(div);
for (let key in data) {
if(childnum == data[key].id){
// 新节点top
let newNodeTop = arrowTop + offsetNum.brokenLineTop;
// 新节点Left
let newNodeLeft = arrowLeft + offsetNum.brokenLineLeft - GetOffsetLeft(data[key]);
if(data[key].type == "diamond"){
newNodeTop = newNodeTop + 15;
}
CreateNode(data[key],newNodeTop,newNodeLeft);
}
}
}
// 获取Top偏移量
function GetOffsetTop(lastNode){
if(lastNode.type == "arrow"){
return offsetNum.arrowTop;
}
else if(lastNode.type == "diamond"){
return offsetNum.diamondTop;
}
else if(lastNode.type == "rectangle"){
return offsetNum.rectangleTop;
}
else if(lastNode.type == "ellipse"){
return offsetNum.ellipseTop;
}
return 100;
}
// 获取Left偏移量
function GetOffsetLeft(lastNode){
if(lastNode.type == "arrow"){
return offsetNum.arrowLeft;
}
else if(lastNode.type == "diamond"){
return offsetNum.diamondLeft;
}
else if(lastNode.type == "rectangle"){
return offsetNum.rectangleLeft;
}
else if(lastNode.type == "ellipse"){
return offsetNum.ellipseLeft;
}
return 0;
}
动态生成效果