arcgis for js 小功能组件大集合
大家可能觉得既然是地图，那么肯定有一些跟用户交互的一些组件或者小功能什么的吧，聪明，确实有这些功能，漫游，放大，缩小，测面积，定位等等，这次来个大集合，为什么来大集合呢，我是不会告诉你我是因为研究这些功能的时候都把代码写在一起了，懒得分开了，我真是太（sang）机（xin）智（bing）了（kuang）！！！
贴下代码
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>arcgis地图完整功能title>
<link rel="stylesheet" type="text/css" href="./arcgis_js_api/library/3.17/3.17/dijit/themes/tundra/tundra.css"/>
<link rel="stylesheet" type="text/css" href="./arcgis_js_api/library/3.17/3.17/esri/css/esri.css" />
<style>
html,body,#mapDiv{
height:100%;
width: 100%;
margin:0;
padding: 0;
}
#mapDiv{
position: relative;
}
#mapDiv>.btnBox>button{
border:1px solid #ccc;
background: #fff;
cursor: pointer;
width: 80px;
height: 30px;
border-radius: 5px;
}
.btnBox{
position:absolute;
top:20px;
right: 50px;
z-index:1000;
}
#measurementDiv{
position: absolute;
background: #fff;
border: 1px solid #ddd;
margin-top:10px;
border-radius: 5px;
width: 278px;
height: auto;
padding:10px;
margin-left:50px;
right: 106px;
top:57px;
display:none;
z-index:1;
}
#HomeButton{
position: absolute;
z-index: 200;
top:220px;
left:24px;
}
.dingwei{
width: 278px;
background: #fff;
border:1px solid #ccc;
padding:10px;
border-radius: 5px;
margin-top:10px;
display: none;
position: absolute;
height: auto;
z-index:1;
right: 106px;
top:57px;
}
.dingwei .group{
margin-top:10px;
}
.dingwei .group input{
width: 209px;
height: 30px;
border: 1px solid #ddd;
border-radius: 5px;
outline: none;
padding-left:5px;
}
.sure{
text-align: center;
margin-top:20px;
}
.sure button{
width: 80px;
height: 30px;
border:0px;
outline: 0;
background: #87D2F1;
border-radius: 5px;
color:#fff;
cursor: pointer;
}
.sure button:hover{
background: #3879D9;
}
#search{
position: absolute;
z-index: 200;
top:17px;
left:50px;
}
style>
head>
<body>
<div id="mapDiv">
<div id="HomeButton">div>
<div id="search">div>
<div class = "btnBox">
<button>漫游button>
<button>放大button>
<button>缩小button>
<button>全图button>
<button>测量button>
<button>清除button>
<button>定位button>
<button>上一视图button>
<button>下一视图button>
div>
<div id="measurementDiv">div>
<div class = "dingwei">
<div class = "group">
<label for="">经度：label>
<input type="text" id = "X">
div>
<div class = "group">
<label for="">纬度：label>
<input type="text" id = "Y">
div>
<div class = "sure">
<button>坐标查询button>
div>
div>
div>
<script type="text/javascript" src="./arcgis_js_api/library/3.17/3.17/init.js">script>
<script>
require([
"esri/map",
"dojo/on",
"dojo/dom",
"dojo/query",
"esri/toolbars/navigation",
"esri/dijit/Measurement",
"esri/units",
"esri/dijit/HomeButton",
"esri/geometry/Point",
"esri/symbols/SimpleMarkerSymbol",
"esri/symbols/SimpleLineSymbol",
"esri/symbols/SimpleFillSymbol",
"esri/graphic",
"esri/Color",
"esri/layers/GraphicsLayer",
"dojo/dom-attr",
"esri/dijit/Search",
"dojo/domReady!"
],function(Map,on,dom,query,Navigation,Measurement,Units,HomeButton,Point,SimpleMarkerSymbol,SimpleLineSymbol,SimpleFillSymbol,Graphic,Color,GraphicsLayer,domAttr,Search){
var map;
var extentList = [];
var count = 0;
map = new Map("mapDiv",{
logo:false,
slider:false,
basemap:"streets",
zoom:3,
isClickRecenter:true,
maxZoom:9,//最大空间等级
minZoom:3,//最小空间等级
center: [53.31, 23]
});
dojo.connect(map, "onExtentChange", showExtent);
function showExtent(extent){
console.log("XMin: " + extent.xmin + "\n")
console.log("YMin: " + extent.ymin + "\n")
console.log("XMax: " + extent.xmax + "\n")
console.log("YMax: " + extent.ymax + "\n")
extentList.push(
{
"xmin":extent.xmin,
"ymin":extent.ymin,
"xmax":extent.xmax,
"ymax":extent.ymax,
"spatialReference":{"wkid":102100}
}
)
extentList = extentList.slice(-2);
console.log("extentList",extentList);
}
//home按钮
var home = new HomeButton({
map: map
}, "HomeButton");
home.startup();
//搜索组件
var search = new Search({
map: map
}, "search");
search.startup();
//创建地图操作对象
var navToolbar = new Navigation(map);
//给地图添加mouse-drag事件，使count变为0
on(map,"MouseDrag",function(){
console.log("wodemap")
count = 0;
})
//给地图添加mouse-drag事件，使count变为0
on(map,"MouseWheel",function(){
console.log("wodemap")
count = 0;
})
//给按钮添加绑定事件
query("button").on("click",function(event){
//获得按钮的文本信息
var value = this.innerHTML;
switch (value){
case "漫游":
//默认是漫游操作
navToolbar.deactivate();
break;
case "放大":
navToolbar.activate(Navigation.ZOOM_IN);
break;
case "缩小":
navToolbar.activate(Navigation.ZOOM_OUT);
break;
case "全图":
navToolbar.zoomToFullExtent();
break;
case "测量":
dom.byId("measurementDiv").style.display = dom.byId("measurementDiv").style.display == "block"?"none":"block";
query(".dingwei")[0].style.display = "none";
navToolbar.deactivate();
break;
case "清除":
clearGraphics(map);
break;
case "定位":
query(".dingwei")[0].style.display = query(".dingwei")[0].style.display == "block"?"none":"block";
dom.byId("measurementDiv").style.display = "none";
navToolbar.deactivate();
break;
case "坐标查询":
gps(map,query,Point,SimpleMarkerSymbol,SimpleLineSymbol,Color,map,Graphic,GraphicsLayer);
break;
case "上一视图":
console.log(count)
if(count >= 0 && count < extentList.length - 1){
var startExtent = new esri.geometry.Extent(extentList[count]);
map.setExtent(startExtent);
count++;
if(count >= extentList.length - 1){
count = extentList.length - 1;
}
}
break;
case "下一视图":
console.log(count)
if(count > 0 && count <= extentList.length - 1){
var startExtent = new esri.geometry.Extent(extentList[count - 1]);
map.setExtent(startExtent);
count++;
if(count >= extentList.length - 1){
count = 0;
}
}
break;
}
})
//测量小工具
var measurement = new Measurement({
map: map,
defaultAreaUnit: Units.SQUARE_KILOMETERS,
defaultLengthUnit: Units.KILOMETERS
}, dom.byId("measurementDiv"));
measurement.startup();
})
//定位的代码
//1.清空Graphics
function clearGraphics(map){
map.graphics.clear();
var graphicsLayerIds = map.graphicsLayerIds;
var len = graphicsLayerIds.length;
for(var i=0;ivar gLayer = map.getLayer(graphicsLayerIds[i]);
gLayer.clear();
}
}
//2.点击坐标查询按钮，查询，定位点
function gps(map,query,Point,SimpleMarkerSymbol,SimpleLineSymbol,Color,map,Graphic,GraphicsLayer){
//清空graphics
clearGraphics(map);
map.infoWindow.hide();//infowindow隐藏
var px = query("#X")[0].value
var py = query("#Y")[0].value;
if(px===""||py===""){
alert("输入的值存在空值！");
return;
}
var x=parseFloat(px);
var y=parseFloat(py);
var location = {
x:x,
y:y
}
location = transform(location);
var point = new Point(location.x,location.y,map.spatialReference);
addGraphicsToMap(point,SimpleMarkerSymbol,SimpleLineSymbol,Color,map,Graphic,GraphicsLayer);
map.centerAndZoom(point,5);
}
//往地图上添加点
function addGraphicsToMap(geometry,SimpleMarkerSymbol,SimpleLineSymbol,Color,map,Graphic,GraphicsLayer){
clearGraphics(map);
var type = geometry.type;
var symbol;
switch (type){
case "point":
symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_CIRCLE,15,new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID,new Color([255,0,0]),1),new Color([255,0,0,0.5]))
}
var graphics = map.graphics.add(new Graphic(geometry,symbol))
var graphicslayer = new GraphicsLayer();
graphicslayer.add(graphics);
map.addLayer(graphicslayer);
}
//经纬度转墨卡托
function transform(location){
var x = location.x *20037508.34/180;
var y = Math.log(Math.tan((90 + location.y)*Math.PI/360))/(Math.PI/180);
y = y *20037508.34/180;
return {
x:x,
y:y
}
}
script>
body>
html>来看看效果吧
漫游，放大缩小都是拉框放大缩小的，我展示一下截图能看到的功能
先来张整体图
测量：
长度和经纬度是一样的操作
经纬度定位：
我们来验证一下经纬度对不对，那我们测量小工具测一下
是对的
恭喜我自己，终于有所突破了，哈哈！！！