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Merge pull request #58 from kplotnik/master
Added Interleave Layers example
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‎README.md‎

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@@ -22,6 +22,7 @@ All of the following examples use **version 3.1** of the API
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* [Extruded geoshapes](https://heremaps.github.io/maps-api-for-javascript-examples/extruded-objects/demo.html) - 3D extrusion of the geo shapes
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* [Finding the Nearest Marker](https://heremaps.github.io/maps-api-for-javascript-examples/finding-the-nearest-marker/demo.html) - Find a marker nearest to the click location
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* [Image overlay](https://heremaps.github.io/maps-api-for-javascript-examples/image-overlay/demo.html) - Display an animated weather radar
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* [Interleave vector and object layers](https://heremaps.github.io/maps-api-for-javascript-examples/interleave-layers/demo.html) - Display an object under the buildings
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* [Map Objects Event Delegation](https://heremaps.github.io/maps-api-for-javascript-examples/map-objects-event-delegation/demo.html) - Use event delegation on map objects
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* [Map Objects Events](https://heremaps.github.io/maps-api-for-javascript-examples/map-object-events-displayed/demo.html) - Handle events on various map objects
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* [Map at a specified location](https://heremaps.github.io/maps-api-for-javascript-examples/map-at-specified-location/demo.html) - Display a map at a specified location and zoom level

‎interleave-layers/demo.css‎

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#map {
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width: 95%;
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height: 450px;
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background: grey;
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}
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#panel {
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width: 100%;
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height: 400px;
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}

‎interleave-layers/demo.details‎

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---
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name: Interleave vector and object layers"
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description: Insert an object layer between the two vector layers
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resources:
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- https://heremaps.github.io/maps-api-for-javascript-examples/test-credentials.js
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normalize_css: no
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dtd: html 5
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wrap: d
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panel_html: 0
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panel_js: 0
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panel_css: 0
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...

‎interleave-layers/demo.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=yes">
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<meta http-equiv="Content-type" content="text/html;charset=UTF-8">
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<title>Interleave vector and object layers</title>
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<link rel="stylesheet" type="text/css" href="https://js.api.here.com/v3/3.1/mapsjs-ui.css" />
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<link rel="stylesheet" type="text/css" href="demo.css" />
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<link rel="stylesheet" type="text/css" href="styles.css" />
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<link rel="stylesheet" type="text/css" href="../template.css" />
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<script type="text/javascript" src='../test-credentials.js'></script>
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<script type="text/javascript" src="https://js.api.here.com/v3/3.1/mapsjs-core.js"></script>
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<script type="text/javascript" src="https://js.api.here.com/v3/3.1/mapsjs-service.js"></script>
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<script type="text/javascript" src="https://js.api.here.com/v3/3.1/mapsjs-mapevents.js"></script>
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</head>
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<body id="markers-on-the-map">
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<div class="page-header">
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<h1>Interleave vector and object layers</h1>
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<p>Insert an object layer between the two vector layers</p>
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</div>
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<p>This example shows how to interleave an object layer and the vector layer. It is possible to do it dynamically during the map runtime.
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The map is loaded with the deefault vector layer, after that the layer is split into two and the new object layer is inserted between them.
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</p>
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<div id="map"></div>
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<h3>Code</h3>
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<p>The code below extracts the <code>buildings</code> configuration from the base layer. After that it creates a new <code>object</code> and <code>vector</code> layers
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that are added sequentially to the map's layer collection. The layers are rendered in the order they are added and the default object layer remained
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on top of the layers collection.
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</p>
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<script type="text/javascript" src='demo.js'></script>
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</body>
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</html>

‎interleave-layers/demo.js‎

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/**
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* The function add the "change" event listener to the map's style
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* and modifies colors of the map features within that listener.
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* @param {H.Map} map A HERE Map instance within the application
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*/
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function interleave(map){
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var provider = map.getBaseLayer().getProvider();
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// get the style object for the base layer
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var style = provider.getStyle();
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var changeListener = () => {
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if (style.getState() === H.map.Style.State.READY) {
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style.removeEventListener('change', changeListener);
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// create a provider and a layer that are placed under the buildings layer
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objectProvider = new H.map.provider.LocalObjectProvider();
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objectLayer = new H.map.layer.ObjectLayer(objectProvider);
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// add a circle to this provider the circle will appear under the buildings
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objectProvider.getRootGroup().addObject(new H.map.Circle(map.getCenter(), 500));
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// add the layer to the map
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map.addLayer(objectLayer);
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// extract buildings from the base layer config
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// in order to inspect the config calling style.getConfig()
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buildings = new H.map.Style(style.extractConfig('buildings'));
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// create the new layer for the buildings
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buildingsLayer = platform.getOMVService().createLayer(buildings);
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// add the layer to the map
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map.addLayer(buildingsLayer);
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// the default object layer and its objects will remain on top of the buildings layer
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map.addObject(new H.map.Marker(map.getCenter()));
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}
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}
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style.addEventListener('change', changeListener);
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}
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/**
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* Boilerplate map initialization code starts below:
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*/
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//Step 1: initialize communication with the platform
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// In your own code, replace variable window.apikey with your own apikey
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var platform = new H.service.Platform({
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apikey: window.apikey
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});
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var defaultLayers = platform.createDefaultLayers();
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//Step 2: initialize a map
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var map = new H.Map(document.getElementById('map'),
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defaultLayers.vector.normal.map, {
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center: {lat: 52.51477270923461, lng: 13.39846691425174},
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zoom: 16,
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pixelRatio: window.devicePixelRatio || 1
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});
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map.getViewModel().setLookAtData({tilt: 45});
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// add a resize listener to make sure that the map occupies the whole container
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window.addEventListener('resize', () => map.getViewPort().resize());
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//Step 3: make the map interactive
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// MapEvents enables the event system
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// Behavior implements default interactions for pan/zoom (also on mobile touch environments)
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var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));
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// Now use the map as required...
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interleave(map);

‎interleave-layers/styles.css‎

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‎meta.json‎

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"shortDescription": "Display a map at a specified location and zoom level",
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"published": true
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},
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{
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"uid": "change-style-at-runtime",
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"title": "Change map style at runtime",
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"shortDescription": "Change a style of the map feature when map is instantiated",
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"published": true
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},
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{
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"uid": "change-style-at-load",
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"title": "Set a map style at the load time",
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"shortDescription": "Set a style of the whole map during the map instantiation",
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"published": true
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},
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{
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"uid": "interactive-basemap",
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"title": "Interactive base map",
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"shortDescription": "Retrieve information associated with the map features",
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"published": true
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},
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{
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"uid": "tilted-map-bounds",
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"title": "View bounds of the tilted map",
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]
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},
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{
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"uid": "styles",
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"title": "Styles and Layers",
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"examples": [
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{
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"uid": "change-style-at-runtime",
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"title": "Change map style at runtime",
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"shortDescription": "Change a style of the map feature when map is instantiated",
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"published": true
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},
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{
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"uid": "change-style-at-load",
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"title": "Set a map style at the load time",
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"shortDescription": "Set a style of the whole map during the map instantiation",
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"published": true
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},
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{
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"uid": "interactive-basemap",
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"title": "Interactive base map",
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"shortDescription": "Retrieve information associated with the map features",
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"published": true
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},
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{
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"uid": "interleave-layers",
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"title": "Interleave vector and object layers",
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"shortDescription": "Insert an object layer between the two vector layers",
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"published": true
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}
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]
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},
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{
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"uid": "markers",
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"title": "Markers",

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