在SuperMap IS.NET AjaxScripts开发中，提供了一个名为SuperMap.IS.Action.js的脚本文件，供开发人员添加自定义动作。
兴趣点（Point Of Interest）标注算是经常用到的功能，供用户在浏览地图时，对自己感兴趣内容在图上进行标注。
本脚本算是初步完成，提供文本、点、线和面的标注。代码如下：
@H_404_7@
//用户自定义兴趣点标注
//title:标注名
//note:备注
//showPic:是否显示logoture/false
//hotpic:logo图片名(包含后缀)
SuperMap.IS.DrawMarkPointAction=function(title,note,showPic,hotpic)
{
this.type="SuperMap.IS.DrawMarkPointAction";
varx=null;
vary=null;
var_showPic=false;
var_hotpic=null;
this.Init=function(mapControl)
{
this.mapControl=mapControl;
if(ygPos.browser=="ie")
{
mapControl.container.style.cursor="images/cursors/PointQuery.cur";
}
else
{
mapControl.container.style.cursor="crosshair";
}
if(showPic!=null)
{
_showPic=showPic;
}
if(hotpic==null)
{
_hotpic="images/hotball.gif";
}
else
{
_hotpic="images/"+hotpic;
}
}
this.Destroy=function()
{
this.mapControl=null;
x=null;
y=null;
}
function_OnClick(e)
{
x=e.mapCoord.x;
y=e.mapCoord.y;
if(_showPic==true)
{
this.mapControl.CustomLayer.AddMark("markPoint",x,y,null,"<div><imgsrc='"+_hotpic+"'style='cursor:pointer'title='"+note+"'/><span>"+title+"</span></div>");
}
else
{
this.mapControl.CustomLayer.AddMark("markPoint","<div><b>"+title+"</b>"+note+"</div>");
}
}
function_OnContextMenu(e)
{
this.mapControl.SetAction(null);
}
function_GetJSON()
{
return_ActionToJSON(this.type,[]);
}
this.OnClick=_OnClick;
this.OnContextMenu=_OnContextMenu;
this.GetJSON=_GetJSON;
}
//用户自定义兴趣线标注
//title:标注名
//note:备注
//showPic:是否显示标注内容
//hotpic:logo图片名(包含后缀)
SuperMap.IS.DrawMarkLineAction=function(title,showLabel,hotpic)
{
this.type="SuperMap.IS.DrawMarkLineAction";
varactionStarted=false;
varkeyPoints=newArray();
varxs=newArray();
varys=newArray();
var_showLabel=false;
var_hotpic=null;
this.Init=function(mapControl)
{
this.mapControl=mapControl;
if(ygPos.browser=="ie")
{
mapControl.container.style.cursor="images/cursors/PointQuery.cur";
}
else
{
mapControl.container.style.cursor="crosshair";
}
if(showLabel!=null)
{
_showLabel=showLabel;
}
if(hotpic==null)
{
_hotpic="images/hotball.gif";
}
else
{
_hotpic="images/"+hotpic;
}
}
this.Destroy=function()
{
this.mapControl=null;
xs=null;
ys=null;
}
function_OnClick(e)
{
if(!actionStarted)
{
keyPoints.push(e.mapCoord);
xs.push(e.mapCoord.x);ys.push(e.mapCoord.y);
actionStarted=true;
}
keyPoints.push(e.mapCoord);
xs.push(e.mapCoord.x);ys.push(e.mapCoord.y);
}
this.OnMouseMove=function(e){
if(!actionStarted){returnfalse;}
keyPoints.pop();
xs.pop();ys.pop();
keyPoints.push(e.mapCoord);
xs.push(e.mapCoord.x);ys.push(e.mapCoord.y);
this.mapControl.CustomLayer.InsertLine(title,xs,ys,2,"blue");
}
function_OnContextMenu(e)
{
if(_showLabel==true)
{
vari=Math.round(keyPoints.length/2)-1;
this.mapControl.CustomLayer.InsertMark("markPoint",xs[i],ys[i],"<div><imgsrc='"+_hotpic+"'style='cursor:pointer'title='"+note+"'/><span>"+title+"</span></div>");
}
this.mapControl.SetAction(null);
}
function_GetJSON()
{
return_ActionToJSON(this.type,[]);
}
this.OnClick=_OnClick;
this.OnContextMenu=_OnContextMenu;
this.GetJSON=_GetJSON;
}
//用户自定义兴趣面标注
//title:标注名
//note:备注
//showPic:是否显示标注内容
//hotpic:logo图片名(包含后缀)
SuperMap.IS.DrawMarkPolygonAction=function(title,hotpic)
{
this.type="SuperMap.IS.DrawMarkPolygonAction";
varactionStarted=false;
varkeyPoints=newArray();
varxs=newArray();
varys=newArray();
varxcenter=0;
varycenter=0;
var_showLabel=false;
var_hotpic=null;
this.Init=function(mapControl)
{
this.mapControl=mapControl;
if(ygPos.browser=="ie")
{
mapControl.container.style.cursor="images/cursors/PointQuery.cur";
}
else
{
mapControl.container.style.cursor="crosshair";
}
if(showLabel!=null)
{
_showLabel=showLabel;
}
if(hotpic==null)
{
_hotpic="images/hotball.gif";
}
else
{
_hotpic="images/"+hotpic;
}
}
this.Destroy=function()
{
this.mapControl=null;
xs=null;
ys=null;
}
function_OnClick(e)
{
if(!actionStarted)
{
keyPoints.push(e.mapCoord);
xs.push(e.mapCoord.x);ys.push(e.mapCoord.y);
actionStarted=true;
}
keyPoints.push(e.mapCoord);
xs.push(e.mapCoord.x);ys.push(e.mapCoord.y);
}
this.OnMouseMove=function(e){
if(!actionStarted){returnfalse;}
keyPoints.pop();
xs.pop();ys.pop();
keyPoints.push(e.mapCoord);
xs.push(e.mapCoord.x);ys.push(e.mapCoord.y);
this.mapControl.CustomLayer.InsertPolygon(title,"blue","white",0.6,1);
}
function_OnContextMenu(e)
{
if(_showLabel==true)
{
//多边形几何中心
varn=keyPoints.length;
for(vari=0;i<n;i++)
{
xcenter+=xs[i]/n;
ycenter+=ys[i]/n;
}
this.mapControl.CustomLayer.InsertMark("markPoint",xcenter,ycenter,"<div><imgsrc='"+_hotpic+"'style='border:0px;cursor:pointer'title='"+note+"'/><span>"+title+"</span></div>");
}
this.mapControl.SetAction(null);
}
function_GetJSON()
{
return_ActionToJSON(this.type,[]);
}
this.OnClick=_OnClick;
this.OnContextMenu=_OnContextMenu;
this.GetJSON=_GetJSON;
}
@H_404_7@
functionSetCustomMark()
{
varcaption=$("Caption").value;
varremark=$("Remark").value;
vartype=$("mark_type").value;
switch(type)
{
case"text":
SetMarkTextAction(caption,remark);
break;
case"point":
SetMarkPointAction(caption,remark);
break;
case"line":
SetMarkLineAction(caption,remark);
break;
case"polygon":
SetMarkPolygonAction(caption,remark);
break;
default:
break;
}
}
functionSetMarkTextAction(caption,remark)
{
markPointAction=newSuperMap.IS.DrawMarkPointAction(caption,remark,false);
MapControl1.SetAction(markPointAction);
}
functionSetMarkPointAction(caption,true);
MapControl1.SetAction(markPointAction);
}
functionSetMarkLineAction(caption,remark)
{
markLineAction=newSuperMap.IS.DrawMarkLineAction(caption,remark);
MapControl1.SetAction(markLineAction);
}
functionSetMarkPolygonAction(caption,remark)
{
markPolygonAction=newSuperMap.IS.DrawMarkPolygonAction(caption,remark);
MapControl1.SetAction(markPolygonAction);
}
脚本下载地址：http://download.csdn.net/source/591063
还有部分待完善，使自主标注内容能在线保存：）
欢迎提供建议！