js画吊线图

一、定义一个长话短说的代替物：$(id)=return document.getElementById(id)
      定义一个函数，函数名叫$。 接收一个参数id ， 调用时返回id为此id的元素对象。

function $(id) {
return document.getElementById(id)
} 

二、定义一个偏移量，参数为nodenode(结点):网络连接的端点，或两条(或多条)线路的连接点、控制点。

function offset(node)

{
var x = node.offsetLeft;  //x横向左对齐
var y = node.offsetTop;  //y纵向上对齐
var w = node.offsetWidth;   //w宽度
var h = node.offsetHeight;   //h高度
var parent = node.offsetParent;   //parent父节点
while (parent != null) {    //父节点不为空时，横向左偏移一个单位，纵向向上偏移一个单位
x += parent.offsetLeft;
y += parent.offsetTop;
parent = parent.offsetParent;    //父节点相等
}

    //如果宽度为0，父节点宽度为当前宽度，初始化+1，左右同样+1，边界宽度*2
if (w == 0) {
w += parseInt(node.currentStyle.width);
w += parseInt(node.currentStyle.paddingRight);
w += parseInt(node.currentStyle.paddingLeft);
w += parseInt(node.currentStyle.borderWidth) * 2;
}

    //如果高度为0，父节点高度为当前高度，初始化+1，上下同样+1，边界高度*2
if (h == 0) {
h += parseInt(node.currentStyle.height);
h += parseInt(node.currentStyle.paddingTop);
h += parseInt(node.currentStyle.paddingBottom);
h += parseInt(node.currentStyle.borderWidth) * 2;
}
return { x: x, y: y, w: w, h: h };
}

三、结点的组织架构

function OrgNode() {
this.Text = null;
this.Link = null;
this.BoxWidth = null;
this.BoxHeight = null;
this.parentNode = null;
this.NodeGroupId = null; //同一层的级别序号,从零开始
this.NodeOrderId = null; //同一级中的序号,从零开始
this.TopLine = null;
this.BottomLine = null;
this.Depth = null;
this.Top = null;
this.Left = null;
this.Type = null;
this.Nodes = [];
this.customParam = []; //节点自定义参数
var This = this;
this.Nodes.Add = function(OrgNode_) {
OrgNode_.parentNode = This;
This.Nodes[This.Nodes.length] = OrgNode_;
}
this.Box = null;
this.Templet = null;
this.Id = "OrgNode_" + GetRandomId(20);

this.inIt = function(parentDivId) {
if (this.inIted == true) return;
var tempDiv = document.createElement("DIV");
var objContainer = document.getElementById(parentDivId);
if (objContainer == null) { objContainer = document.body; }
objContainer.appendChild(tempDiv);

var tempHTML = this.Templet;
tempHTML = tempHTML.replace("{Id}", this.Id);
tempHTML = tempHTML.replace("{Text}", this.Text);
tempHTML = (this.Link == null) ? tempHTML.replace("{Link}", "JavaScript:void(0)") : tempHTML.replace("{Link}", this.Link);
for (var Param_ in this.customParam) {
tempHTML = tempHTML.replace("{" + Param_ + "}", this.customParam[Param_]);
}
tempDiv.innerHTML = tempHTML;
this.Box = $(this.Id);

if (this.BoxWidth != null) {
// if(offset(this.Box).w < this.BoxWidth){
this.Box.style.width = this.BoxWidth + "px";
// if(offset(this.Box).w > this.BoxWidth){
// this.Box.style.width=(this.BoxWidth - (offset(this.Box).w - this.BoxWidth)) +"px";
// }
// }
}

if (this.BoxHeight != null) {
// if(offset(this.Box).h < this.BoxHeight){
this.Box.style.height = this.BoxHeight + "px";
// if(offset(this.Box).h > this.BoxHeight){
// this.Box.style.height=(this.BoxHeight - (offset(this.Box).h - this.BoxHeight)) +"px";
// }
// }
}

this.Width = offset(this.Box).w;
this.Height = offset(this.Box).h;
this.inIted = true;
}

function GetRandomId(n_) {
var litter = "abcdefghijklmnopqrstuvwxyz"
litter += litter.toUpperCase()
litter += "1234567890";
var idRnd = "";
for (var i = 1; i <= n_; i++) {
idRnd += litter.substr((0 + Math.round(Math.random() * (litter.length - 0))), 1)
}
return idRnd;
}
}

四、架构展示

function OrgShow(OrgNode_) {
this.LineSize = 2;
this.LineColor = "#000000";

this.IntervalWidth = 100;
this.IntervalHeight = 50;
this.Top = 0;
this.Left = 0;
this.Depth = 0;
this.Nodes = [];
this.DepthGroup = []; //this.DepthGroup[n].Nodes 层深节点集合
//this.DepthGroup[n].NodeGroups[m] 层深节点按上层分类集合 this.DepthGroup[n].NodeGroups[m][k]层深节点
var This = this;
this.BoxWidth = null;
this.BoxHeight = null;
this.BoxTemplet = null;

this.Run = function(parentDivId) {
BoxInit(parentDivId, OrgNode_);
GetDepth(OrgNode_);
SetDepthsHeight() //设置层深高度

//***************************
for (var n = 1; n <= this.Depth; n++) { //设置顶距离
var tempTop = this.Top + GetDepthHeightToRoot(n);
var tempNodes = this.DepthGroup[n].Nodes;
for (var m = 0; m < tempNodes.length; m++) {
tempNodes[m].Top = tempTop;
}
}

//***************************
for (var n = this.Depth; n >= 1; n--) { //设置左距离
var DepthNodes = this.DepthGroup[n].Nodes;
if (n == this.Depth) {
// 暂时安排最下一层节点的位置
for (var m = 0; m < DepthNodes.length; m++) {
if (m == 0) {
DepthNodes[m].Left = 0;
} else {
DepthNodes[m].Left = DepthNodes[m - 1].Left + DepthNodes[m - 1].Width + this.IntervalWidth;
}
}
} else {
for (var m = 0; m < DepthNodes.length; m++) {
if (DepthNodes[m].Nodes.length != 0) {
//
// 根据下级节点位置，确定节点位置
//
var tempNodeLeft_ = DepthNodes[m].Nodes[0].Left + (GetGroupWidthByNode(DepthNodes[m].Nodes[0]) / 2);
tempNodeLeft_ -= (DepthNodes[m].Width / 2);
DepthNodes[m].Left = tempNodeLeft_;
} else {
//
// 没有下级节点的
//
SetLeftByDepthNode(DepthNodes, m, "LTR");
}
}

for (var m = 1; m < DepthNodes.length; m++) { //修正错误位置
var ErrDistance = this.IntervalWidth - (DepthNodes[m].Left - DepthNodes[m - 1].Left - DepthNodes[m - 1].Width);
if (ErrDistance > 0) {
for (var u_ = m; u_ < DepthNodes.length; u_++) {
AmendNodeLeft(DepthNodes[u_], ErrDistance);
}
}
}
}
}

var objParent = document.getElementById(parentDivId);
var maxWidth = SetDepthGroupWidth(); //设置群组宽度
// alert(objParent.documentElement.scrollWidth);
// alert(objParent.offsetWidth);
// alert(objParent.scrollWidth);
// alert(objParent.clientWidth);
// if (objParent.scrollWidth > maxWidth) {
objParent.style.width = maxWidth;
// }

var MaxLeftValue = this.Nodes[0].Left;
for (var n = 1; n < this.Nodes.length; n++) { //取得最小左距离
if (MaxLeftValue > this.Nodes[n].Left) {
MaxLeftValue = this.Nodes[n].Left;
}
}

MaxLeftValue = (-MaxLeftValue) + this.Left;
for (var n = 0; n < this.Nodes.length; n++) { //重新设置距离
this.Nodes[n].Left += MaxLeftValue;
this.Nodes[n].Box.style.left = this.Nodes[n].Left + "px"
this.Nodes[n].Box.style.top = this.Nodes[n].Top + "px"
}

//***************************
for (var n = 1; n <= this.Depth; n++) { //设置竖线条
var tempNodes = this.DepthGroup[n].Nodes;
for (var m = 0; m < tempNodes.length; m++) {
if (n != this.Depth) { //设置底线条
if (tempNodes[m].Nodes.length != 0) {
var tempLineLeft = tempNodes[m].Left + (tempNodes[m].Width / 2);
var tempLineHeight = ((this.IntervalHeight - this.LineSize) / 2);
tempLineHeight += (this.DepthGroup[n].Height - tempNodes[m].Height);
var tempLineTop = tempNodes[m].Top + tempNodes[m].Height;
var tempBottomLine = new CreateLine(parentDivId, 2, tempLineTop, tempLineLeft, tempLineHeight, this.LineSize, this.LineColor, "LineBottom_" + tempNodes[m].Id);
tempNodes[m].BottomLine = tempBottomLine.Line;
}
}
if (n != 1) { //设置顶线条
var tempLineLeft = tempNodes[m].Left + (tempNodes[m].Width / 2);
var tempLineHeight = ((this.IntervalHeight - this.LineSize) / 2);
var tempLineTop = tempNodes[m].Top - tempLineHeight;
if (this.DepthGroup[tempNodes[m].Depth].NodeGroups[tempNodes[m].NodeGroupId].length == 1) { //如果只有一个节点
var tempBottomLineHeight = parseFloat(tempNodes[m].parentNode.BottomLine.style.height) + this.LineSize;
tempNodes[m].parentNode.BottomLine.style.height = (tempLineHeight + tempBottomLineHeight) + "px";
} else {
var temptopLine = new CreateLine(parentDivId, 2, tempLineTop, tempLineLeft, tempLineHeight, this.LineSize, this.LineColor, "LineTop_" + tempNodes[m].Id);
tempNodes[m].TopLine = temptopLine.Line;
}
}
}
}

for (var n = 2; n <= this.Depth; n++) { //设置横线条
var tempNodeGroups_ = this.DepthGroup[n].NodeGroups;
for (var m = 0; m < tempNodeGroups_.length; m++) {
if (tempNodeGroups_[m].length != 1) {
var tempLineWidth = tempNodeGroups_[m].Width - (tempNodeGroups_[m][0].Width / 2) + this.LineSize;
tempLineWidth -= (tempNodeGroups_[m][tempNodeGroups_[m].length - 1].Width / 2);
var tempLineTop = tempNodeGroups_[m][0].Top - ((this.IntervalHeight - this.LineSize) / 2) - this.LineSize;
var tempLineLeft = tempNodeGroups_[m][0].Left + (tempNodeGroups_[m][0].Width / 2);
var tempGroupLine = new CreateLine(parentDivId, 1, tempLineTop, tempLineLeft, tempLineWidth, this.LineSize, this.LineColor, "LineGroup_" + tempNodeGroups_[m][0].Id);
}
}
}

//*************************************************************************************************

function AmendNodeLeft(Node_, ErrDistance_) { //修正错误位置
Node_.Left = Node_.Left + ErrDistance_;
if (Node_.Nodes.length != 0) {
for (var n = 0; n < Node_.Nodes.length; n++) {
AmendNodeLeft(Node_.Nodes[n], ErrDistance_);
}
}
}
}

function GetGroupWidthByNode(Node_) { //根据群组中任一节点，取得群组宽度
var tempNodesGroup_ = This.DepthGroup[Node_.Depth].NodeGroups[Node_.NodeGroupId];
var tempGroupWidth_ = tempNodesGroup_[tempNodesGroup_.length - 1].Left - tempNodesGroup_[0].Left;
tempGroupWidth_ += tempNodesGroup_[tempNodesGroup_.length - 1].Width
return tempGroupWidth_;
}

function SetLeftByDepthNode(DepthNodes_, NodeId, Type) {
if (Type == "LTR" && NodeId == DepthNodes_.length - 1) {
if (NodeId != 0) {
SetLeftByDepthNode(DepthNodes_, NodeId, "RTL");
}
return;
}
if (Type == "RTL" && NodeId == 0) {
if (NodeId != DepthNodes_.length - 1) {
SetLeftByDepthNode(DepthNodes_, NodeId, "LTR");
}
return;
}
var FindIndex = null;
if (Type == "LTR") {
for (var r_ = NodeId + 1; r_ < DepthNodes_.length; r_++) {
if (DepthNodes_[r_].Left != null) {
FindIndex = r_;
break;
}
}
if (FindIndex == null) {
if (NodeId != 0) {
SetLeftByDepthNode(DepthNodes_, NodeId, "RTL");
}
return;
} else {
for (var r_ = FindIndex - 1; r_ >= NodeId; r_--) {
DepthNodes_[r_].Left = DepthNodes_[r_ + 1].Left - This.IntervalWidth - DepthNodes_[r_].Width;
}
}
}
if (Type == "RTL") {
for (var r_ = NodeId - 1; r_ >= 0; r_--) {
if (DepthNodes_[r_].Left != null) {
FindIndex = r_;
break;
}
}
if (FindIndex == null) {
if (NodeId != NodeId == DepthNodes_.length - 1) {
SetLeftByDepthNode(DepthNodes_, NodeId, "LTR");
}
return;
} else {
for (var r_ = FindIndex + 1; r_ <= NodeId; r_++) {
DepthNodes_[r_].Left = DepthNodes_[r_ - 1].Left + This.IntervalWidth + DepthNodes_[r_ - 1].Width;
}
}
}
}

function GetDepthHeightToRoot(DepthId) { //取得距离顶层的高度
var tempHeight_ = 0;
for (var x_ = DepthId; x_ >= 1; x_--) {
tempHeight_ += This.DepthGroup[x_].Height;
}
tempHeight_ += This.IntervalHeight * (DepthId - 1);
tempHeight_ -= This.DepthGroup[DepthId].Height;
return tempHeight_;
}

function SetLeftPosByChildNode(Node_, ChildNode_) { //根据下级节点位置设置节点位置
var tempNodeGroups = This.DepthGroup[ChildNode_.Depth].NodeGroups[ChildNode_.NodeGroupId];
var tempNodeLeft;
if (tempNodeGroups.length == 1) {
tempNodeLeft = ((ChildNode_.Width / 2) + ChildNode_.Left) - (Node_.Width / 2);
} else {
tempNodeLeft = GetFirstLeftPos(ChildNode_) + (tempNodeGroups.Width / 2) - (Node_.Width / 2);
}
Node_.Left = tempNodeLeft;
}

function GetFirstLeftPos(Node_) { //根据节点位置取得同一级中首个节点位置
if (Node_.NodeOrderId == 0) { //Node_为首节点
return Node_.Left;
}
var tempWidth = 0;
for (var k_ = 0; k_ <= Node_.NodeOrderId; k_++) {
var tempGroupsNode = This.DepthGroup[Node_.Depth].NodeGroups[Node_.NodeGroupId][k_];
tempWidth += tempGroupsNode.Width;
}
tempWidth += (Node_.NodeOrderId * This.IntervalWidth);
return ((Node_.Left - tempWidth) + (Node_.Width / 2));
}

function ChildNodesWidth(OrgObj) { //取得层宽
var ReWidth = 0;
for (var s_ = 0; s_ < OrgObj.Nodes.length; s_++) {
ReWidth += OrgObj.Nodes[s_].Width;
}
ReWidth += (OrgObj.Nodes.length - 1) * This.IntervalWidth;
return ReWidth;
}

function SetDepthGroupWidth() { //设置层深宽度
var maxWidth = 0;
for (var n_ = 1; n_ <= This.Depth; n_++) {
var thisDepthWidth = 0;
var tempNodeGroups = This.DepthGroup[n_].NodeGroups;
for (var m_ = 0; m_ < tempNodeGroups.length; m_++) {
tempNodeGroups[m_].Width = GetGroupWidthByNode(tempNodeGroups[m_][0]);
if (thisDepthWidth != 0) {
thisDepthWidth += This.IntervalWidth;
}
thisDepthWidth += tempNodeGroups[m_].Width;
}
thisDepthWidth += tempNodeGroups[0][0].Left;
if (thisDepthWidth > maxWidth) {
maxWidth = thisDepthWidth;
}
}
return maxWidth;
}

function SetDepthsHeight() { //设置层深高度
for (var n_ = 1; n_ <= This.Depth; n_++) {
var tempNodes_ = This.DepthGroup[n_].Nodes;
var MaxHeight = 0;
for (var m_ = 0; m_ < tempNodes_.length; m_++) {
if (tempNodes_[m_].Height > MaxHeight) {
MaxHeight = tempNodes_[m_].Height;
}
}
This.DepthGroup[n_].Height = MaxHeight;
}
}

function GetDepth(OrgObj) { //取得层深,层群集
This.Nodes[This.Nodes.length] = OrgObj;
OrgObj.Depth = (This.Depth == 0) ? This.Depth + 1 : OrgObj.parentNode.Depth + 1;
This.Depth = (OrgObj.Depth > This.Depth) ? OrgObj.Depth : This.Depth;
if (typeof(This.DepthGroup[OrgObj.Depth]) != "object") {
This.DepthGroup[OrgObj.Depth] = [];
This.DepthGroup[OrgObj.Depth].Nodes = [];
This.DepthGroup[OrgObj.Depth].NodeGroups = [];
}
This.DepthGroup[OrgObj.Depth].Nodes[This.DepthGroup[OrgObj.Depth].Nodes.length] = OrgObj;
if (OrgObj.Depth == 1) {
This.DepthGroup[OrgObj.Depth].NodeGroups[0] = [];
This.DepthGroup[OrgObj.Depth].NodeGroups[0][0] = OrgObj;
OrgObj.NodeGroupId = 0;
OrgObj.NodeOrderId = 0;
} else {
if (This.DepthGroup[OrgObj.Depth].NodeGroups.length == 0) {
This.DepthGroup[OrgObj.Depth].NodeGroups[0] = [];
This.DepthGroup[OrgObj.Depth].NodeGroups[0][0] = OrgObj;
OrgObj.NodeGroupId = 0;
OrgObj.NodeOrderId = 0;
} else {
var GroupsLength = This.DepthGroup[OrgObj.Depth].NodeGroups.length;
var GroupNodesLength = This.DepthGroup[OrgObj.Depth].NodeGroups[GroupsLength - 1].length;
if (OrgObj.parentNode == This.DepthGroup[OrgObj.Depth].NodeGroups[GroupsLength - 1][GroupNodesLength - 1].parentNode) {
This.DepthGroup[OrgObj.Depth].NodeGroups[GroupsLength - 1][GroupNodesLength] = OrgObj;
OrgObj.NodeGroupId = GroupsLength - 1;
OrgObj.NodeOrderId = GroupNodesLength;
} else {
if (typeof(This.DepthGroup[OrgObj.Depth].NodeGroups[GroupsLength]) != "object") {
This.DepthGroup[OrgObj.Depth].NodeGroups[GroupsLength] = [];
}
GroupNodesLength = This.DepthGroup[OrgObj.Depth].NodeGroups[GroupsLength].length;
This.DepthGroup[OrgObj.Depth].NodeGroups[GroupsLength][GroupNodesLength] = OrgObj;
OrgObj.NodeGroupId = GroupsLength;
OrgObj.NodeOrderId = GroupNodesLength;
}
}
}

if (OrgObj.Nodes.length != 0) {
for (var n = 0; n < OrgObj.Nodes.length; n++) {
GetDepth(OrgObj.Nodes[n]);
}
}
}

function BoxInit(parentDivId, OrgObj_) { //节点初始化
if (OrgObj_.Templet == null) {
OrgObj_.Templet = GetBoxTemplet();
}
OrgObj_.BoxWidth = This.BoxWidth;
OrgObj_.BoxHeight = This.BoxHeight;
OrgObj_.inIt(parentDivId);

if (OrgObj_.Nodes.length != 0) {
for (var n = 0; n < OrgObj_.Nodes.length; n++) {
BoxInit(parentDivId, OrgObj_.Nodes[n]);
}
}
}

function GetBoxTemplet() { //取得节点模板
if (This.BoxTemplet != null) return This.BoxTemplet;
var TempletStr = "<div id="{Id}" style="font-size:12px;line-height:100%;padding-top:6px;padding-bottom:5px;border:1px solid #c6c6c6;background-color:#ededed;clear:left;float:left;text-align:center;position:absolute;" onmouseover="this.style.cursor='pointer',this.style.backgroundColor='#ff8402';" onmouseout="this.style.backgroundColor='#ededed';" onclick="{Link}">{Text}</div>";
return TempletStr;
}

function CreateLine(parentDivId, type_, top_, left_, long_, size_, color_, id_) {
this.Type = type_;
top_ = top_ + "";
left_ = left_ + "";
long_ = long_ + "";
this.Top = (top_.substr(top_.length - 2).toLowerCase() != "px") ? top_ + "px" : top_;
this.Left = (left_.substr(left_.length - 2).toLowerCase() != "px") ? left_ + "px" : left_;
this.Long = (long_.substr(long_.length - 2).toLowerCase() != "px") ? long_ + "px" : long_;
this.Size = (size_ == undefined) ? "1px" : size_ + "";
this.Id = (id_ == undefined) ? null : id_;
this.Size = (this.Size.substr(this.Size.length - 2).toLowerCase() != "px") ? this.Size + "px" : this.Size;
this.Color = (color_ == undefined) ? "#000000" : color_;
this.Line = document.createElement("DIV");

var objContainer = document.getElementById(parentDivId);
if (objContainer == null) { objContainer = document.body; }
objContainer.appendChild(this.Line);
this.Line.innerText = "x";
this.Line.style.position = "absolute";
this.Line.style.top = this.Top;
this.Line.style.left = this.Left;
this.Line.style.overflow = "hidden";
if (this.Type == 1) {
this.Line.style.borderTopColor = this.Color;
this.Line.style.borderTopWidth = this.Size;
this.Line.style.borderTopStyle = "solid";
this.Line.style.width = this.Long;
this.Line.style.height = "1px";
} else {
this.Line.style.borderLeftColor = this.Color;
this.Line.style.borderLeftWidth = this.Size;
this.Line.style.borderLeftStyle = "solid";
this.Line.style.height = this.Long;
this.Line.style.width = "1px";
}
if (this.Id != null) this.Line.id = this.Id;
}
}