<!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 Image Service</title> <link rel="stylesheet" href="https://js.arcgis.com/3.20/esri/css/esri.css" /> <style> html, body, #map { height: 100%; width: 100%; margin: 0; padding: 0; } </style> <script src="https://js.arcgis.com/3.20/"></script> <script> var map; require([ "esri/map", "esri/layers/ArcGISImageServiceLayer", "esri/layers/ImageServiceParameters", "dojo/parser", "dojo/domReady!" ], function( Map, ArcGISImageServiceLayer, ImageServiceParameters, parser ) { parser.parse(); map = new Map("map", { basemap: "topo", center: [-79.40, 43.64], zoom: 12 }); var params = new ImageServiceParameters(); params.noData = 0; var imageServiceLayer = new ArcGISImageServiceLayer("https://sampleserver6.arcgisonline.com/arcgis/rest/services/Toronto/ImageServer", { imageServiceParameters: params, opacity: 0.75 }); map.addLayer(imageServiceLayer); }); </script> </head> <body> <div id="map"> </div> </body> </html>
原文：http://www.cnblogs.com/tinaluo/p/6999822.html