You can define a pane to control the order in which feature layers are drawn. This allows you more cartographic control over the rendering of layers beyond typical tile, polygon, and point ordering.
<html>
<head>
<meta charset="utf-8" />
<title>Control feature layer drawing order</title>
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no" />
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" crossorigin="" />
<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" crossorigin=""></script>
<!-- Load Esri Leaflet from CDN -->
<script src="https://unpkg.com/esri-leaflet@3.0.12/dist/esri-leaflet.js"></script>
<!-- Load Esri Leaflet Vector from CDN -->
<script src="https://unpkg.com/esri-leaflet-vector@4.2.3/dist/esri-leaflet-vector.js" crossorigin=""></script>
<style>
html,
body,
#map {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
font-family: Arial, Helvetica, sans-serif;
font-size: 14px;
color: #323232;
}
</style>
</head>
<body>
<div id="map"></div>
<script>
const apiKey = "YOUR_API_KEY";
const map = L.map("map").setView([45.5384, -122.6695], 16);
L.esri.Vector.vectorBasemapLayer("osm/standard", {
apikey: apiKey
}).addTo(map);
const neighborhoodsUrl = "https://www.portlandmaps.com/arcgis/rest/services/Public/Zoning/MapServer/32";
const buildingFootprintsUrl = "https://www.portlandmaps.com/arcgis/rest/services/Public/Basemap_Color_Buildings/MapServer/0";
const blockPointsUrl = "https://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer/0";
// create a map pane for neighborhoods
map.createPane("neighborhoods");
// Define the created pane when creating the feature layer
L.esri
.featureLayer({
url: neighborhoodsUrl,
pane: "neighborhoods"
})
.addTo(map);
// Panes are added to the map in order - this pane will be sit on top of 'neighborhoods'
map.createPane("footprints");
L.esri
.featureLayer({
url: buildingFootprintsUrl,
pane: "footprints",
style: function (feature) {
return { color: "white", weight: 0, fillOpacity: 1 };
}
})
.addTo(map);
map.createPane("blockpoints");
// for point GeoJSON, Leafet expects custom panes to be returned in pointToLayer()
L.esri
.featureLayer({
url: blockPointsUrl,
pointToLayer: function (geojson, latlng) {
return L.circleMarker(latlng, {
pane: "blockpoints",
color: "green"
});
}
})
.addTo(map);
</script>
</body>
</html>