Kelly,
Yes, that makes more sense. Try this JS Bin - Collaborative JavaScript Debugging, it is not exactly what you are looking for. This script does what you want in reverse.
Try this code. I am not sure what you service areas are but this might work.
<!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>Select with feature layer</title>
<link rel="stylesheet" href="http://js.arcgis.com/3.12/dijit/themes/tundra/tundra.css">
<link rel="stylesheet" href="http://js.arcgis.com/3.12/esri/css/esri.css">
<style>
html, body, #mapDiv {
padding: 0;
margin: 0;
height: 100%;
}
#messages{
background-color: #fff;
box-shadow: 0 0 5px #888;
font-size: 1.1em;
max-width: 15em;
padding: 0.5em;
position: absolute;
right: 20px;
top: 20px;
z-index: 40;
}
</style>
<script src="http://js.arcgis.com/3.12/"></script>
<script>
var map;
require([
"esri/map", "esri/layers/FeatureLayer", "esri/layers/GraphicsLayer",
"esri/tasks/query", "esri/geometry/Circle",
"esri/graphic", "esri/InfoTemplate", "esri/symbols/SimpleMarkerSymbol",
"esri/symbols/SimpleLineSymbol", "esri/symbols/SimpleFillSymbol", "esri/renderers/SimpleRenderer",
"esri/config", "esri/Color", "dojo/dom", "dojo/domReady!"
], function(
Map, FeatureLayer, GraphicsLayer,
Query, Circle,
Graphic, InfoTemplate, SimpleMarkerSymbol,
SimpleLineSymbol, SimpleFillSymbol, SimpleRenderer,
esriConfig, Color, dom
) {
map = new Map("mapDiv", {
basemap: "streets",
center: [-95.249, 38.954],
zoom: 16,
slider: true
});
var censusPoints = new FeatureLayer("http://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer/1",{
infoTemplate: new InfoTemplate("Block: ${BLOCK}", "${*}"),
mode: FeatureLayer.MODE_SELECTION,
outFields: ["POP2000","HOUSEHOLDS","HSE_UNITS", "TRACT", "BLOCK"]
});
var censusBlocks = new FeatureLayer("http://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer/0");
var censusBlocksGL = new GraphicsLayer();
var bSymbol = new SimpleFillSymbol(
SimpleFillSymbol.STYLE_SOLID,
new SimpleLineSymbol(
SimpleLineSymbol.STYLE_SOLID,
new Color([247, 34, 101, 0.9]),
1
),
new Color([247, 34, 101, 0.3])
);
// selection symbol used to draw the selected census block points within the buffer polygon
var symbol = new SimpleMarkerSymbol(
SimpleMarkerSymbol.STYLE_CIRCLE,
12,
new SimpleLineSymbol(
SimpleLineSymbol.STYLE_SOLID,
new Color([247, 34, 101, 0.9]),
1
),
new Color([207, 34, 171, 0.5])
);
censusPoints.setSelectionSymbol(symbol);
map.addLayers([censusPoints, censusBlocks, censusBlocksGL]);
censusBlocks.on("click", function(e){
censusBlocksGL.clear();
//select point features within the clicked census block
if(e.graphic && e.graphic.geometry){
var gra = new Graphic(e.graphic.geometry, bSymbol);
censusBlocksGL.add(gra);
var query = new Query();
query.geometry = e.graphic.geometry;
censusPoints.selectFeatures(query);
}
});
});
</script>
</head>
<body>
<span id="messages">Click on the map to select census block points within the group.</span>
<div id="mapDiv"></div>
</body>
</html>If this does not work I might be able to find more examples.
