JavaScript ArcGIS BuildingComponentSublayerView用法及代碼示例

類： esri/views/layers/BuildingComponentSublayerView

繼承: BuildingComponentSublayerView > Accessor

自從：用於 JavaScript 4.17 的 ArcGIS API

表示 BuildingComponentSublayer 的子層視圖。子圖層視圖可用於查詢視圖中加載的要素。子層視圖可以通過 BuildingSceneLayerView 上的 sublayerViews 屬性訪問：

// query all sublayers for features that satisfy the sql expression
let query = new Query();
query.where = "FamilyType = 'Landscape'";
view.whenLayerView(buildingSceneLayer).then(function(bslv) {
   bslv.sublayerViews.forEach(function(componentSublayerView) {
     componentSublayerView.queryFeatures(query).then(function(result) {
       console.log(result.features);
     });
   });
});

BuildingComponentSublayerView 上的查詢是針對已為當前視圖加載的函數執行的。這意味著一旦圖層完成更新，就保證隻有可見的特征可用。當意圖在整個數據集中進行查詢或搜索時，不應使用BuildingComponentSublayerView 上的查詢方法，而應使用BuildingComponentSublayer 上的查詢方法。

可以在特定的子圖層視圖上調用突出顯示方法：

view.whenLayerView(buildingSceneLayer).then(function(bslv) {
  // get the sublayer view of the component sublayer with id 1
  const sublayerView = bslv.sublayerViews.find(function(sublayerView) {
    return sublayerView.sublayer.id === 1;
  });
  const query = sublayerView.createQuery();
  query.spatialRelationship = "contains";
  query.geometry = polygonGeometry;
  // query sublayer view
  sublayerView.queryObjectIds(query).then(function(result) {
    sublayerView.highlight(result);
  });
});