在Arcgis中使用定位器时如何实现自动完成 [英] How to implement autocomplete while using locator in arcgis
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问题描述
下面的代码是在文本框中输入位置后在地图上查找位置.请在下面的代码中注意，我使用的是"locator"而不是"geocoder"，因为我想使用自定义文本框"esri/dijit/geocoder"提供的文本框，我也想使用定位器获取地理坐标值.
The below code is to find a location on map, once the location is entered in a textbox.Please note in the below code that I am using 'locator' instead of 'geocoder' as i would like to have custom textbox instead of the textbox provided by the 'esri/dijit/geocoder' and also i would like to get the geocoordinates values using locator.
在下面的代码中，我想在文本框中添加自动完成"功能，该功能与地理编码器"中的自动完成"功能具有相同的功能.
In the below code, i would like to add 'autocomplete' feature in textbox that has the same functionality as of 'autocomplete' feature in 'geocoder'.
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<!--The viewport meta tag is used to improve the presentation and behavior of the samples
on iOS devices-->
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
<title>Find Address</title>
<link rel="stylesheet" href="http://js.arcgis.com/3.12/dijit/themes/claro/claro.css">
<link rel="stylesheet" href="http://js.arcgis.com/3.12/esri/css/esri.css">
<style>
html, body {
height: 100%; width: 100%;
margin: 0; padding: 0;
}
#map{
padding:0;
border:solid 1px #343642;
margin:5px 5px 5px 0px;
}
#leftPane{
width:20%;
border-top: solid 1px #343642;
border-left: solid 1px #343642;
border-bottom: solid 1px #343642;
margin:5px 0px 5px 5px;
color: #343642;
font:100% Georgia,"Times New Roman",Times,serif;
/*letter-spacing: 0.05em;*/
}
</style>
<script src="http://js.arcgis.com/3.12/"></script>
<script>
var map, locator;
require([
"esri/map", "esri/tasks/locator", "esri/graphic",
"esri/InfoTemplate", "esri/symbols/SimpleMarkerSymbol",
"esri/symbols/Font", "esri/symbols/TextSymbol",
"dojo/_base/array", "esri/Color",
"dojo/number", "dojo/parser", "dojo/dom", "dijit/registry",
"dijit/form/Button", "dijit/form/Textarea",
"dijit/layout/BorderContainer", "dijit/layout/ContentPane", "dojo/domReady!"
], function(
Map, Locator, Graphic,
InfoTemplate, SimpleMarkerSymbol,
Font, TextSymbol,
arrayUtils, Color,
number, parser, dom, registry
) {
parser.parse();
map = new Map("map", {
basemap: "streets",
center: [-93.5, 41.431],
zoom: 5
});
locator = new Locator("http://geocode.arcgis.com/arcgis/rest/services/World/GeocodeServer");
locator.on("address-to-locations-complete", showResults);
// listen for button click then geocode
registry.byId("locate").on("click", locate);
map.infoWindow.resize(200,125);
function locate() {
map.graphics.clear();
var address = {
"SingleLine": dom.byId("address").value
};
locator.outSpatialReference = map.spatialReference;
var options = {
address: address,
outFields: ["Loc_name"]
};
locator.addressToLocations(options);
}
function showResults(evt) {
var symbol = new SimpleMarkerSymbol();
var infoTemplate = new InfoTemplate(
"Location",
"Address: ${address}<br />Score: ${score}<br />Source locator: ${locatorName}"
);
symbol.setStyle(SimpleMarkerSymbol.STYLE_SQUARE);
symbol.setColor(new Color([153,0,51,0.75]));
var geom;
arrayUtils.every(evt.addresses, function(candidate) {
console.log(candidate.score);
if (candidate.score > 80) {
console.log(candidate.location);
var attributes = {
address: candidate.address,
score: candidate.score,
locatorName: candidate.attributes.Loc_name
};
geom = candidate.location;
var graphic = new Graphic(geom, symbol, attributes, infoTemplate);
//add a graphic to the map at the geocoded location
map.graphics.add(graphic);
//add a text symbol to the map listing the location of the matched address.
var displayText = candidate.address;
var font = new Font(
"16pt",
Font.STYLE_NORMAL,
Font.VARIANT_NORMAL,
Font.WEIGHT_BOLD,
"Helvetica"
);
var textSymbol = new TextSymbol(
displayText,
font,
new Color("#666633")
);
textSymbol.setOffset(0,8);
map.graphics.add(new Graphic(geom, textSymbol));
return false; //break out of loop after one candidate with score greater than 80 is found.
}
});
if ( geom !== undefined ) {
map.centerAndZoom(geom, 12);
}
}
});
</script>
</head>
<body class="claro">
<div id="mainWindow" data-dojo-type="dijit/layout/BorderContainer"
data-dojo-props="design:'sidebar', gutters:false"
style="width:100%; height:100%;">
<div id="leftPane"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'left'">
Enter an address then click the locate button to use a sample address locator to return the location for
street addresses in the United States.
<br>
<textarea id="address">380 New York St, Redlands</textArea>
<br>
<button id="locate" data-dojo-type="dijit/form/Button">Locate</button>
</div>
<div id="map"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'center'">
</div>
</div>
</body>
</html>
如何在此代码中添加自动完成"功能?
How to add 'autocomplete' feature in this code?
推荐答案
地理编码dijit支持使用默认定位器或自定义定位器进行自动填充.由于您引用的是默认定位器服务，因此您只需使用dijit并在选项中传递autoComplete
The geocode dijit supports autocomplete using either the default locator or custom ones. Since you are referencing the default locator service you can just use the dijit and pass autoComplete in the options
<script>
var map, geocoder;
require([
"esri/map", "esri/dijit/Geocoder", "dojo/domReady!"
], function(Map, Geocoder) {
map = new Map("map",{
basemap: "gray",
center: [-120.435, 46.159], // lon, lat
zoom: 7
});
geocoder = new Geocoder({
map: map,
autoComplete : true
}, "search");
geocoder.startup();
});
</script>
这篇关于在Arcgis中使用定位器时如何实现自动完成的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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