Segev,
Here is your code working (with some UI changes):
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
<title>Heat-map creator</title>
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<style>
#rendPanel {
padding: 10px;
background-color: rgba(255, 255, 255, 0.8);
}
.esri-button {
margin: 2px;
}
html,
body,
#viewDiv {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
</style>
<!-- <link rel="stylesheet" href="https://js.arcgis.com/4.11/esri/css/main.css"> -->
<link
rel="stylesheet"
href="https://js.arcgis.com/4.11/esri/themes/light/main.css"
/>
<script src="https://js.arcgis.com/4.11/"></script>
<script>
require([
"esri/Map",
"esri/views/MapView",
"esri/layers/FeatureLayer",
"esri/renderers/smartMapping/creators/heatmap"
], function (Map, MapView, FeatureLayer, heatmapRendererCreator) {
var pov = new FeatureLayer({
url: "https://services.arcgis.com/P3ePLMYs2RVChkJx/arcgis/rest/services/ACS_Poverty_by_Age_Boundaries/FeatureServer/1",
minScale: 40000000,
maxScale: 4000
});
var TF = new FeatureLayer({
url: "https://services3.arcgis.com/1pxU2hJU9ZszJDcX/ArcGIS/rest/services/Young_Adult_Treatment_Facilities/FeatureServer/0",
});
function apply(result) {
console.log("applying")
TF.renderer = result.renderer;
};
function remove() {
console.log("removing")
TF.renderer = {
type: "simple",
symbol: {
type: "simple-marker",
style: "circle",
color: [0, 197, 255, 255],
size: 7,
outline: {
color: [255, 255, 255, 255],
width: 0.75
}
}
}
}
var map = new Map({
basemap: "gray",
layers: [pov, TF]
});
var view = new MapView({
container: "viewDiv",
map: map,
center: [-102.370576, 40.172530],
zoom: 5
});
var heatmapParams = {
layer: TF,
basemap: map.basemap,
field: "adlt",
view: view
};
document.getElementById("butt-1").addEventListener("click", function () {
heatmapRendererCreator.createRenderer(heatmapParams).then(apply)
});
document.getElementById("butt-2").addEventListener("click", function () {
remove();
});
view.ui.add("rendPanel", "top-right");
});
</script>
</head>
<body>
<div id="viewDiv"></div>
<div id="rendPanel" class="esri-widget">
<button id="butt-1" class="esri-button">
create Heatmap
</button>
<button id="butt-2" class="esri-button">
remove Heatmap
</button>
</div>
</body>
</html>