Arcgis for Javascript之featureLayer图和属性互操作性
说明：主要实现加载FeatureLayer并显示属性表，而要实现联动属性表与地图，首先，看看实施后的效果：
显示效果
如上图所看到的，本文章主要实现了下面几个功能：1、FeatureLayer属性表的分页载入与显示；2、属性表和地图的互操作，包含鼠标经过时在地图上显示名称并高亮显示、点击列表显示对象的信息框。例如以下图：
显示信息框
以下，说说详细的实现思路与代码。
1、FeatureLayer属性表的获取
获取FeatureLayer的属性表，首先得创建FeatureLayer对象，例如以下：
ftch = new FeatureLayer("http://localhost:6080/arcgis/rest/services/shpchina/MapServer/0",{
outFields: ["*"]
})
var symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_SQUARE,
10,
new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
new Color([255,0,0]),
1
),
new Color([0,255,0,0.25])
);
//简单渲染
var sr = new SimpleRenderer(symbol);
ftch.setRenderer(sr);
map.addLayer(ftch,1);
有了FeatureLayer对象，能够通过ftch.graphics获取全部的记录。获取到graphics就能获取到单个的graphic，就能获取每个graphic的attributes，例如以下：
var graphics=ftch.graphics;
console.log(graphics);
var item = "";
for(var i=0;i<graphics.length;i++){
var attr = graphics[i].attributes;
var id=attr.FID, name=attr.name;
item+= "{\"id\":"+id+",\"text\":'"+name+"'},";
}
2、属性表的分页显示
此时，就能组装分页显示属性的json对象了，例如以下：
var graphics=ftch.graphics;
console.log(graphics);
var item = "";
for(var i=0;i<graphics.length;i++){
var attr = graphics[i].attributes;
var id=attr.FID, name=attr.name;
item+= "{\"id\":"+id+",\"text\":'"+name+"'},";
}
item = "["+item.substring(0,item.length-1)+"]";
attr="{'total':"+graphics.length+",'items':"+item+"}";
PAGE_DATA = eval('(' + attr + ')');
将属性表分页显示，如博文http://blog.csdn.net/gisshixisheng/article/details/40048451所看到的。
3、每个对象事件的绑定与实现
每个显示对象的都是一个div。给div分别加入onclick，onmouseover和onmouseout事件，三个事件传递的參数都一样，是在graphics里面的index值，接下来就是实现三个事件。具体代码例如以下：
showInfo = function(index){
var pt=ftch.graphics[index].geometry;
var attr=ftch.graphics[index].attributes;
map.infoWindow.setTitle(attr.name);
map.infoWindow.setContent(attr.name);
map.infoWindow.show(pt);
};
showObj = function(index){
var symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_CIRCLE,
12,
new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
new Color([255,0,0]),
1
),
new Color([255,0,0,1])
);
ftch.graphics[index].symbol=symbol;
ftch.redraw();
var pt=ftch.graphics[index].geometry;
var font = new esri.symbol.Font();
font.setSize("10pt");
font.setWeight(esri.symbol.Font.WEIGHT_BOLD);
var text = new esri.symbol.TextSymbol(ftch.graphics[index].attributes.name);
text.setAlign(esri.symbol.TextSymbol.ALIGN_START);
text.setFont(font);
text.setOffset(2,-15);
text.setColor(new dojo.Color([255,0,0,1]));
var labelGraphic = new esri.Graphic(pt,text);
labelLayer.add(labelGraphic);
};
restoreObj = function(index){
labelLayer.clear();
var symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_SQUARE,
10,
new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
new Color([255,0,0]),
1
),
new Color([0,255,0,0.25])
);
ftch.graphics[index].symbol=symbol;
ftch.redraw();
};
});
showInfo相应的是单击事件。showObject相应的是鼠标经过事件，restoreObj相应的是鼠标移除事件，这样基本并能就实现了。
具体代码例如以下：
map.html
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
<title>Simple Map</title>
<link rel="stylesheet" href="http://localhost/arcgis_js_api/library/3.9/3.9/js/esri/css/esri.css">
<link rel="stylesheet" href="page.css">
<style>
html, body, #map {
height: 100%;
margin: 0;
padding: 0;
}
body {
background-color: #FFF;
overflow: hidden;
font-family: "Trebuchet MS";
}
#map_ctrl{
z-index: 99;
position: absolute;
top: 20pt;
right: 10pt;
background: #fff;
}
.button{
padding: 3px;
background: #eee;
text-align: center;
font-size: 12px;
font-family: "微软雅黑";
}
.button:hover,.attr_ctrl:hover{
background: #ccc;
cursor: pointer;
}
#attr_ctrl{
z-index: 99;
width: 155px;
position:absolute;
right: 0px;
bottom:5px;
text-align: right;
}
.attr_ctrl{
padding: 5px;
font-size: 12px;
font-family: "微软雅黑";
width: 100px;
background: #eee;
border: 1px solid #000;
border-bottom: none;
}
#map_attr{
z-index: 99;
font-size: 12px;
font-family: "微软雅黑";
width: 176px;
height: 150px;
background: #eee;
position: absolute;
bottom: 0px;
right:0px;
border: 1px solid #000;
border-bottom: none;
}
</style>
<script src="http://localhost/arcgis_js_api/library/3.9/3.9/init.js"></script>
<script src="jquery-1.8.3.js"></script>
<script src="jquery.page.js"></script>
<script>
var map, mapCenter, ftch;
var PAGE_DATA, currpage= 1, pagesize=5;
var showInfo, showObj, restoreObj;
require([
"esri/map",
"esri/layers/ArcGISTiledMapServiceLayer",
"esri/layers/FeatureLayer",
"esri/layers/GraphicsLayer",
"esri/geometry/Point",
"esri/symbols/SimpleMarkerSymbol",
"esri/symbols/SimpleLineSymbol",
"esri/renderers/SimpleRenderer",
"dojo/_base/Color",
"dojo/on",
"dojo/dom",
"dojo/domReady!"],
function(Map,
Tiled,
FeatureLayer,
GraphicsLayer,
Point,
SimpleMarkerSymbol,
SimpleLineSymbol,
SimpleRenderer,
Color,
on,
dom)
{
map = new Map("map", {logo:false,slider: true});
var tiled = new Tiled("http://localhost:6080/arcgis/rest/services/chinamap/MapServer");
map.addLayer(tiled,0);
ftch = new FeatureLayer("http://localhost:6080/arcgis/rest/services/shpchina/MapServer/0",{
outFields: ["*"]
})
var symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_SQUARE,
10,
new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
new Color([255,0,0]),
1
),
new Color([0,255,0,0.25])
);
//简单渲染
var sr = new SimpleRenderer(symbol);
ftch.setRenderer(sr);
map.addLayer(ftch,1);
var labelLayer = new GraphicsLayer();
map.addLayer(labelLayer,2);
mapCenter = new Point(103.847, 36.0473, map.spatialReference);
map.centerAndZoom(mapCenter,4);
var navToolbar = new esri.toolbars.Navigation(map);
on(dom.byId("full_extent"), "click", function(event){//全图
map.centerAndZoom(mapCenter,4);
});
on(dom.byId("zoom_in"), "click", function(event){//拉框放大
map.setMapCursor("url(cursor/zoom-in.cur),auto");
navToolbar.activate(esri.toolbars.Navigation.ZOOM_IN);
});
on(dom.byId("zoom_out"), "click", function(event){//拉框缩小
map.setMapCursor("url(cursor/zoom-out.cur),auto");
navToolbar.activate(esri.toolbars.Navigation.ZOOM_OUT);
});
navToolbar.on("extent-history-change", function(){
map.setMapCursor("default");
navToolbar.deactivate();
});
on(dom.byId("attr_ctrl"), "click", function(event){//显示或隐藏属性表
if($(".attr_ctrl").html()=="显示属性"){
var graphics=ftch.graphics;
console.log(graphics);
var item = "";
for(var i=0;i<graphics.length;i++){
var attr = graphics[i].attributes;
var id=attr.FID, name=attr.name;
item+= "{\"id\":"+id+",\"text\":'"+name+"'},";
}
item = "["+item.substring(0,item.length-1)+"]";
attr="{'total':"+graphics.length+",'items':"+item+"}";
PAGE_DATA = eval('(' + attr + ')');
loadPages(1);
$("#map_attr").show();
$(".attr_ctrl").html("隐藏属性");
$("#attr_ctrl").css("bottom","155px");
}
else{
$("#map_attr").hide();
$(".attr_ctrl").html("显示属性");
$("#attr_ctrl").css("bottom","5px");
}
});
showInfo = function(index){
var pt=ftch.graphics[index].geometry;
var attr=ftch.graphics[index].attributes;
map.infoWindow.setTitle(attr.name);
map.infoWindow.setContent(attr.name);
map.infoWindow.show(pt);
};
showObj = function(index){
var symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_CIRCLE,
12,
new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
new Color([255,0,0]),
1
),
new Color([255,0,0,1])
);
ftch.graphics[index].symbol=symbol;
ftch.redraw();
var pt=ftch.graphics[index].geometry;
var font = new esri.symbol.Font();
font.setSize("10pt");
font.setWeight(esri.symbol.Font.WEIGHT_BOLD);
var text = new esri.symbol.TextSymbol(ftch.graphics[index].attributes.name);
text.setAlign(esri.symbol.TextSymbol.ALIGN_START);
text.setFont(font);
text.setOffset(2,-15);
text.setColor(new dojo.Color([255,0,0,1]));
var labelGraphic = new esri.Graphic(pt,text);
labelLayer.add(labelGraphic);
};
restoreObj = function(index){
labelLayer.clear();
var symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_SQUARE,
10,
new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,
new Color([255,0,0]),
1
),
new Color([0,255,0,0.25])
);
ftch.graphics[index].symbol=symbol;
ftch.redraw();
};
});
function loadPages(page){
$('#pages').html("");
$('#pages').itemPage({
data:PAGE_DATA,
currpage:page,
pagesize:pagesize
});
};
function showPage(page){
console.log(page);
switch(page){
case "prev":{//前一页
if(currpage>1){
currpage=currpage-1;
}
else{
alert("没有上一页了！");
}
break;
}
case "next":{//后一页
if(currpage!=getLastPage()){
currpage=currpage+1;
}
else{
alert("没有下一页了！ ");
}
break;
}
case "last":{//最后一页
currpage=getLastPage();
break;
}
default:{
currpage=1;//第一页
break;
}
}
loadPages(currpage);
};
function getLastPage(){
var total=PAGE_DATA.total;
if(total%pagesize==0){
return total/pagesize;
}
else{
return parseInt(total/pagesize)+1;
}
}
</script>
</head> <body>
<div id="map">
<div id="map_ctrl">
<a id="full_extent" class="button">全 图</a>
<a id="zoom_in" class="button">拉框放大</a>
<a id="zoom_out" class="button">拉框缩小</a>
</div>
<div id="attr_ctrl">
<a class="attr_ctrl">显示属性</a>
</div>
<div id="map_attr" style="display: none">
<div id="pages">
</div>
</div>
</div>
</body>
</html>
page.css
.page_item{
background:#C9DCD7;
width:170px;
text-align:left;
padding-left:10px;
padding-top:3px;
padding-bottom:3px;
border-bottom:1px solid #3CF;
}
.page_item:hover{
background:#A9C9FA;
cursor:pointer;
}
#page_ctrl{
padding-top:5px;
}
.page_ctrl{
width:40px;
text-align:center;
background:#A9C9FA;
float:left;
margin:2px;
padding-top:5px;
padding-bottom:5px;
}
.page_ctrl:hover{
background:#C9DCD7;
cursor:pointer;
}
jquery.page.js
/**
* Created by Administrator on 14-10-18.
*/
(function($){
$.fn.itemPage = function(options){
var defaults = {};
var options = $.extend(defaults, options); var data=options.data,//数据
currpage=options.currpage,//当前页
pagesize=options.pagesize;//每页显示的数据条目器 var total=data.total; var items=$("<div id='items'></div>"),
pagectrl=$("<div id='page_ctrl'></div>"); var first=$("<div id=\"first\" class=\"page_ctrl\" onClick=\"showPage('first')\">首 页</div>"),
prev=$("<div id=\"prev\" class=\"page_ctrl\" onClick=\"showPage('prev')\">前一页</div>"),
next=$("<div id=\"next\" class=\"page_ctrl\" onClick=\"showPage('next')\">后一页</div>"),
last=$("<div id=\"last\" class=\"page_ctrl\" onClick=\"showPage('last')\">末 页</div>"); var start=getStartindex(),
end=getEndindex(); for(var i=start;i<end;i++){
var itemi=$("<div class='page_item' onclick='showInfo("+i+")' onmouseout='restoreObj("+i+")' onmouseover='showObj("+i+")'>"+data.items[i].text+"</div>");
items.append(itemi);
} pagectrl.append(first),
pagectrl.append(prev),
pagectrl.append(next)
pagectrl.append(last); var container = $(this);
container.append(items),
container.append(pagectrl); function getStartindex(){
return (currpage-1)*pagesize;
}
function getEndindex(){
var endIndex=0;
if(data.total%pagesize!=0 && currpage==getLastPage()){
endIndex = data.total;
}
else {
endIndex = currpage*pagesize;
}
return endIndex;
}
}
})(jQuery);
到此功能基本上完毕。非常多有待优化，还望继续关注LZUGIS之Arcgis for Javascript系列博文。您的支持就是我的动力，谢谢。
QQ：1004740957
mail：niujp08@qq.com
版权声明：本文博主原创文章。博客，未经同意不得转载。
Arcgis for Javascript之featureLayer图和属性互操作性的更多相关文章
- Arcgis for Javascript之featureLayer图和属性的互操作
说明:主要实现加载FeatureLayer与显示属性表,并实现属性表与地图的联动,首先,看看实现后的效果: 显示效果 如上图所示,本文章主要实现了以下几个功能:1.FeatureLayer属性表的分页 ...
- arcgis for javascript 添加featurelayer,设置地图最大最小等级
转自原文arcgis for javascript 添加featurelayer,设置地图最大最小等级 var map; var livingCenter; var livingCenterUrl = ...
- Arcgis for Javascript实现图
首先,截个图给大家看结果: 初始化状态 放大后的状态 点击选中后的状态 如上图所看到的,一般的涉及到的地图的统计涉及到上述所展示的三个状态:1.初始化状态.2.缩放后的状态:3.点击选中显示详情状态. ...
- ArcGIS for JavaScript继承TiledMapServiceLayer来实现“动态切图”
这种方式可以提高出图速度于效果,算法见http://blog.newnaw.com/?p=633,我用ArcGIS for JavaScript API来实现.具体代码为: function init ...
- arcgis for javascript之ArcGISDynamicMapServiceLayer图层控制的实现
图层控制是非常多GIS系统里面必须的一个小功能,本文就说说arcgis for javascript下ArcGISDynamicMapServiceLayer图层控制的实现方式.首先看图: 实现效果 ...
- 利用Arcgis for javascript API绘制GeoJSON并同时弹出多个Popup
1.引言 由于Arcgis for javascript API不可以绘制Geojson,并且提供的Popup一般只可以弹出一个,在很多专题图制作中,会遇到不少的麻烦.因此本文结合了两个现有的Arcg ...
- Arcgis for Javascript之统计图的实现
首先,截个图给大家看看效果: 初始化状态 放大后的状态 点击选中后的状态 如上图所示,一般的涉及到的地图的统计涉及到上述所展示的三个状态:1.初始化状态:2.缩放后的状态:3.点击选中显示详情状态.第 ...
- 关于ArcGis for javascript的使用
1.引用ArcGis for javascript核心类库的两种方式: 1.1.下载js包,解压缩放入项目中 1.1.1.下载核心类库压缩文件, 下载地址: https://developers.ar ...
- Arcgis for Javascript API下类似于百度搜索A、B、C、D marker的实现方式
原文:Arcgis for Javascript API下类似于百度搜索A.B.C.D marker的实现方式 多说无益,首先贴两张图让大家看看具体的效果: 图1.百度地图搜索结果 图2.Arcgis ...
随机推荐
- java 线程 新类库中的构件 countDownLatch 使用
watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvbGlhbmdydWkxOTg4/font/5a6L5L2T/fontsize/400/fill/I0JBQk ...
- UDE-00008 ORA-31626 ORA-06512 ORA-25254
今天在导出一个模式的时候,约140GB,出现例如以下错误: UDE-00008: operation generated ORACLE error 31626 ORA-31626: job does ...
- 解决tomcat开始出现in production environments was not found on the java.library.path:xxx
如图所看到的,Eclipse中启动tomcat时出现not found on the java.library.path等信息.能够通过下载tomcat-native-1.1.32-win32-bin ...
- hdu 4444 Walk （离散化+建图+bfs+三维判重 好题）
Walk Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submi ...
- Maven和Gradle
Maven和Gradle对比 Java世界中主要有三大构建工具:Ant.Maven和Gradle.经过几年的发展,Ant几乎销声匿迹.Maven也日薄西山,而Gradle的发展则如日中天.笔者有幸见证 ...
- EXCEL随机密码生成函数
=CHAR(INT(RAND()*+))&INT(RAND()*+)&CHAR(INT(RAND()*+))&INT(RAND()*+)&CHAR(INT(RAND() ...
- Android Studio怎样安装插件
Android Studio安装插件的方式事实上和Eclipse大同小异.废话不多说,直接上图: 区域1:你当前已经安装了的插件 区域2:在线安装 区域3:从硬盘安装,即针对你已经下载好了的插件,可通 ...
- 采用PopupWin控制消息推送功能
最近的项目需要,急需实现消息推送功能.接连试了很多办法,让我们用JavaScript为了实现啊,其效果是不咋好,最后,我发现了一个PopupWin这个,看着眼前的成绩不错,开始使用. 1.准备工作.先 ...
- Android System Property 解析
一 System Property 今天在折腾HDMI 显示,为Setting提供接口,遇到非常多跟Android系统属性相关的问题.因此,顺便分析和总结一些. android的代码中大量 ...
- makefile知识点归纳的
以一个样例開始,文件文件夹结构例如以下 ---------(当前文件夹)-----------main.c | |------- ...