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Color ramp symbols


Renderer.setColorInfo() allows you to render quantitative data with color ramp (continuous color) without breaks. (Added at version 3.8 of the JS API)


<!DOCTYPE html>
    <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>Color Ramp</title>
    <link rel="stylesheet" href="https://js.arcgis.com/3.46/esri/css/esri.css">
      html, body, #map {
        height: 100%;
        margin: 0;
      #info {
        position: absolute;
        left: 0;
        bottom: 0;
        padding: 10px;
        background-color: #ddd;
        font: 14px Segoe UI;
        width: 200px;
        text-align: center;
        border-radius: 0 10px 0 0;
    <script src="https://js.arcgis.com/3.46/"></script>
        "esri/map", "esri/geometry/Extent", 
        "esri/layers/FeatureLayer", "esri/InfoTemplate", "esri/dijit/Legend",
        "esri/renderers/SimpleRenderer", "esri/Color", 
        "esri/symbols/SimpleFillSymbol", "esri/symbols/SimpleLineSymbol", 
      ], function(
        Map, Extent, 
        FeatureLayer, InfoTemplate, Legend,
        SimpleRenderer, Color, 
        SimpleFillSymbol, SimpleLineSymbol
      ) {
        var map = new Map("map", {
          extent: new Extent({"xmin":-2460944,"ymin":-1389910,"xmax":2297115,"ymax":1643787,"spatialReference":{"wkid":102003}})
        var layer = new FeatureLayer("https://services.arcgis.com/V6ZHFr6zdgNZuVG0/arcgis/rest/services/USA_County_Crops_2007/FeatureServer/0", {
          outFields: ["*"],
          infoTemplate: new InfoTemplate("${COUNTY}, ${STATE}", "<div style='font: 18px Segoe UI'>The percentage of the area of the county that represents farmland is <b>${M086_07:NumberFormat(places:0)}%</b>.</div>")
        var legend = new Legend({
          map: map,
          layerInfos: [{ title: "Percentage of county area used for farming", layer: layer }]
        }, "legend");
        layer.on("load", function(){
          var renderer = new SimpleRenderer(new SimpleFillSymbol().setOutline(new SimpleLineSymbol().setWidth(0.1).setColor(new Color([128,128,128]))));
            field: "M086_07",
            minDataValue: 0,
            maxDataValue: 100,
            colors: [
              new Color([255, 255, 255]),
              new Color([127, 127, 0])
    <div id="map"></div>
    <div id="info"><div id="legend"></div></div>
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