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Renderer with proportional symbols and rotation
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Description
Point symbols sized and rotated to reflect wind speed and direction.Code
<!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>Proportional Symbols with Rotation Representing Wind Speed and Direction</title>
<link rel="stylesheet" href="https://js.arcgis.com/3.26/dijit/themes/claro/claro.css">
<link rel="stylesheet" href="https://js.arcgis.com/3.26/esri/css/esri.css">
<style>
html, body, #map {
height: 100%;
width: 100%;
margin: 0;
padding: 0;
}
</style>
<script src="https://js.arcgis.com/3.26/"></script>
<script>
var map;
require([
"esri/map", "esri/layers/FeatureLayer",
"esri/InfoTemplate", "esri/renderers/SimpleRenderer",
"esri/symbols/SimpleMarkerSymbol", "esri/symbols/SimpleLineSymbol",
"esri/Color", "dojo/_base/array",
"dojo/domReady!"
], function(
Map, FeatureLayer,
InfoTemplate, SimpleRenderer,
SimpleMarkerSymbol, SimpleLineSymbol,
Color, arrayUtils, parser
) {
map = new Map("map", {
basemap:"topo",
center: [-96.53, 38.374],
zoom: 4
});
var infoTemplate = new InfoTemplate(
"Wind",
"Speed: ${WIND_SPEED} knots<br>Direciton: ${WIND_DIRECT} degrees<br>Station Name: ${STATION_NAME}<br>Country: ${COUNTRY}"
);
var layer = new FeatureLayer("https://services.arcgis.com/V6ZHFr6zdgNZuVG0/arcgis/rest/services/weather_stations_010417/FeatureServer/0", {
id: "wind",
infoTemplate: infoTemplate,
mode: FeatureLayer.MODE_ONDEMAND,
outFields:["*"]
});
var markerSym = new SimpleMarkerSymbol().setPath("M14.5,29 23.5,0 14.5,9 5.5,0z");
markerSym.setOutline(new SimpleLineSymbol().setWidth(0.5));
markerSym.setColor(new Color("red"));
var renderer = new SimpleRenderer(markerSym);
renderer.setRotationInfo({
field:"WIND_DIRECT",
type:"geographic"
});
renderer.setSizeInfo({
field:"WIND_SPEED",
minSize:3,
maxSize:20,
minDataValue:5,
maxDataValue:50
});
layer.setRenderer(renderer);
map.addLayer(layer);
});
</script>
</head>
<body>
<div id="map"></div>
</body>
</html>