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如何為HERE Javascript API設置HERE Base Map Tiles API？

[英]How to setup HERE Base Map Tiles API for HERE Javascript API?

 原文  2019-07-23 18:02:11  0   2    javascript/ here-api

問題描述

我為我的Web應用程序成功實現了HERE Javascript API。 我想簡化地圖的顯示方式，因此首先嘗試創建本指南中介紹的自己的地圖樣式。

給出的示例可以正常工作，但我無法根據需要進行調整而不會出現故障（我認為縮進是問題所在，盡管經過數小時的嘗試，但仍無法驗證）。 我找不到任何“地圖樣式文件生成器”，所以我幾乎放棄了，直到找到這些：

不幸的是，這些答案中的給定代碼不起作用： 

//Instead of using the default layers...
//var defaultLayers = platform.createDefaultLayers();

//...create your own layer (with e.g. the "reduced" scheme
var reduced = platform.getMapTileService({
  type: 'base'
}).createTileLayer("maptile", "reduced.day", 256, "png8");

//Initialize a map using your custom map tile layer
var map = new H.Map(document.getElementById('mapp'), reduced, {
  center: {
    lat: 52.3,
    lng: 13.8
  },
  zoom: 10
});

而defaultLayers.vector.normal.map和reduced對象似乎是同一類對象，使用defaultLayers為我提供默認映射，而使用簡化的Layout為我提供一個空白映射，控制台上沒有錯誤，但那些GET類型為Errors ： 

mapsjs-core.js:33 GET https://1.base.hereapi.com/maptile/2.1/info?xnlp=CL_JSMv3.1.0.3&apikey=[My credentials]&output=json net::ERR_NAME_NOT_RESOLVED
d   @   mapsjs-core.js:33
ic  @   mapsjs-core.js:34
application/json    @   mapsjs-core.js:70
af.yj   @   mapsjs-core.js:69
(anonymous) @   mapsjs-core.js:44
(anonymous) @   mapsjs-core.js:44
zj  @   mapsjs-core.js:44
add @   mapsjs-core.js:44
rd  @   mapsjs-core.js:43
af  @   mapsjs-core.js:69
n.ga    @   VM2398:15
n.hh    @   VM2398:18
tn  @   VM2398:14
T.vb    @   VM2398:14
T.th    @   VM2398:20
(anonymous) @   script.js:60

以下是我完整的代碼： 

///### Credentials

// Identification service, this key only work on present domain.
var platform = new H.service.Platform({
    'apikey': '[Well .. my credentials]'
});

///### Map setup

//...create your own layer (with e.g. the "reduced" scheme
var reduced = platform.getMapTileService({
  type: 'base'
}).createTileLayer("maptile", "reduced.day", 256, "png8");

//Step 2: initialize a map using your custom map tile layer
var map = new H.Map(document.getElementById('map'), reduced, {
  center: {
    lat: 52.3,
    lng: 13.8
  },
  zoom: 10
});

///### Map Interaction

// Add a resize listener to make sure that the map occupies the whole container
window.addEventListener('resize', () => map.getViewPort().resize());

// Set the map interactive
// Behavior implements default interactions for pan/zoom (also on mobile touch environments)
var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));

// Create the default UI:
var ui = H.ui.UI.createDefault(map, defaultLayers ,'es-ES');

也許獲取地圖圖塊的聲明已更改？

2 個解決方案

解決方案1
 0  2019-07-24 03:49:17

我只是使您的源代碼起作用。 希望有幫助！ 

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0,
      width=device-width" />
    <script src="https://js.api.here.com/v3/3.1/mapsjs-core.js"
      type="text/javascript" charset="utf-8"></script>
    <script src="https://js.api.here.com/v3/3.1/mapsjs-service.js"
      type="text/javascript" charset="utf-8"></script>
    <script src="https://js.api.here.com/v3/3.1/mapsjs-ui.js"
      type="text/javascript" charset="utf-8"></script>
    <link rel="stylesheet" type="text/css"
      href="https://js.api.here.com/v3/3.1/mapsjs-ui.css" />
  </head>
  <body>
  <div style="width: 640px; height: 480px" id="mapContainer"></div>
<script type="text/javascript" charset="utf-8">
var style = `
sources:
  omv:
    type: OMV
    max_zoom: 17
    min_display_zoom: 1
scene:
  background:
    color: [1.000, 1.000, 1.000, 1.00]

layers:
  water_areas:
    data: {source: omv, layer: water}
    draw:
      polygons:
        order: 1 # z-order of the layer
        color: [0.055, 0.604, 0.914, 1.00]
  road:
    data: {source: omv, layer: roads}
    draw:
      lines:
        order: 2
        color: [0.561, 0.561, 0.561, 1.00]
        width: 15
    major_road:
      filter:
        kind: 'major_road'
      draw:
        lines:
          color: [0.882, 0.553, 0.086, 1.00]
          width: 5px
`;
  //Initialize the Platform object:
    var platform = new H.service.Platform({
    'apikey': 'APIKEY'
    });

  // Get the default map types from the Platform object:
  var defaultLayers = platform.createDefaultLayers();

  // Instantiate the map:
  var map = new H.Map(
    document.getElementById('mapContainer'),
    defaultLayers.vector.normal.map,
    {
      zoom: 10,
      center: { lng: 13.8, lat: 52.3 }
    });

  var baseLayer = map.getBaseLayer();
  baseLayer.getProvider().setStyle(new H.map.Style(style));

</script>
</body>
</html>

解決方案2
 0 已采納  2019-07-24 05:36:02

您應該使用js版本3.0而不是3.1來使代碼正常工作，這樣對您有用嗎？ 

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, width=device-width" />
<link rel="stylesheet" type="text/css" href="https://js.api.here.com/v3/3.0/mapsjs-ui.css?dp-version=1533195059" />
<script type="text/javascript" src="https://js.api.here.com/v3/3.0/mapsjs-core.js"></script>
<script type="text/javascript" src="https://js.api.here.com/v3/3.0/mapsjs-service.js"></script>
<script type="text/javascript" src="https://js.api.here.com/v3/3.0/mapsjs-ui.js"></script>
<script type="text/javascript" src="https://js.api.here.com/v3/3.0/mapsjs-mapevents.js"></script>

</head>
<body>

  <div id="map" style="position:absolute; width:100%; height:100%; background:grey" ></div>
  <!--<div id="panel" style="position:absolute; width:49%; left:51%; height:100%; background:inherit" ></div>-->

  <script  type="text/javascript" charset="UTF-8" >


//Step 1: initialize communication with the platform
var platform = new H.service.Platform({
  app_id: 'DemoAppId01082013GAL',
  app_code: 'AJKnXv84fjrb0KIHawS0Tg',
  useCIT: true
});

//Instead of using the default layers...
//var defaultLayers = platform.createDefaultLayers();

//...create your own layer (with e.g. the "reduced" scheme
var reduced = platform.getMapTileService({
  type: 'base'
}).createTileLayer("maptile", "reduced.day", 256, "png8");

//Step 2: initialize a map using your custom map tile layer
var map = new H.Map(document.getElementById('map'), reduced, {
  center: {
    lat: 52.3,
    lng: 13.8
  },
  zoom: 10
});

//Step 3: make the map interactive
var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));

  </script>
</body>
</html>

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