这里是摩洛哥和西撒哈拉的地图

Question

如您所知，摩洛哥对西撒哈拉领土存在争议。

我们正在使用摩洛哥的地缘政治视图（

political_view

），它成功地删除了边界，但它并没有从视图中删除“西撒哈拉”的标签。

mapStyle.setProperty('global.political_view','ma');

我们需要设置一些额外的属性，还是摩洛哥的政治观点需要改变？

Answer 1

是的，使用地缘政治观点成功地消除了边界，但没有消除标签。

可以通过更改样式“transform.political_view”的程序代码来实现。

1. 在 sculpture.yaml 文件（路径：“sources.omv.transform.political_view”）中 - 也许您需要地图样式编辑器：https://enterprise.here.com/map-style-editor/

直接下载（已经为您重新设计）：https://github.com/alexisad/alexisad.github.io/blob/master/vector-styles/removeSomeLabel/sculpture.yaml

2. 在运行时，代码：

---

/**
 * The function add the "change" event listener to the map's style
 * and modifies colors of the map features within that listener.
 * @param  {H.Map} map      A HERE Map instance within the application
 */
function interleave(map){
  var provider = map.getBaseLayer().getProvider();

  // get the style object for the base layer
  var style = provider.getStyle();

  var changeListener = () => {
    if (style.getState() === H.map.render.webgl.Style.State.READY) {
      style.removeEventListener('change', changeListener);
      
      const filterWestSahara = `function(data, extraData) {
            if (extraData && extraData.political_view && extraData.political_view == "ma" && data.places) {
                const pview = extraData.political_view;
                const features = data.places.features;
                let featureIdx = features.length;
                while (featureIdx--) {
                    let properties = features[featureIdx].properties;
                    if (properties['name:en'] && properties['name:en'].toUpperCase() == "WESTERN SAHARA") {
                        properties.kind = 'country:' + pview;
                    }
                }
            }
          if (extraData && extraData.political_view && data.boundaries) {
            
            const pview = extraData.political_view;
            const features = data.boundaries.features;
            let featureIdx = features.length;
            while (featureIdx--) {
              let properties = features[featureIdx].properties;
              if (properties['kind:'+pview]) {
                properties.kind = properties['kind:'+pview];
              }
            }
          }
          return data;
        }
`;
  style.setProperty("sources.omv.transform.political_view", filterWestSahara, true);
  style.setProperty('global.political_view','ma');
      

    }
  }

  style.addEventListener('change', changeListener);
}

/**
 * Boilerplate map initialization code starts below:
 */

//Step 1: initialize communication with the platform
// In your own code, replace variable window.apikey with your own apikey
var platform = new H.service.Platform({
  apikey: window.apikey
});
var defaultLayers = platform.createDefaultLayers();

//Step 2: initialize a map
var map = new H.Map(document.getElementById('map'),
  defaultLayers.vector.normal.map, {
  center: {lat: 52.51477270923461, lng: 13.39846691425174},
  zoom: 10,
  pixelRatio: window.devicePixelRatio || 1
});
//map.getViewModel().setLookAtData({tilt: 45});

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

//Step 3: make the map interactive
// MapEvents enables the event system
// Behavior implements default interactions for pan/zoom (also on mobile touch environments)
var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));

// Now use the map as required...
interleave(map);

JSFiddle：https://jsfiddle.net/hnromqaL/1/

Answer 2

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