JavaScript ArcGIS FeatureEffect用法及代码示例

AMD: require(["esri/layers/support/FeatureEffect"], (FeatureEffect) => { /* code goes here */ });

ESM: import FeatureEffect from "@arcgis/core/layers/support/FeatureEffect";

类： esri/layers/support/FeatureEffect

继承: FeatureEffect > Accessor

自从：用于 JavaScript 4.22 的 ArcGIS API

FeatureEffect 允许您强调或弱化满足 2D MapView 过滤器的特征。 includedEffect 和 exceptedEffect 属性允许您将CSS filters应用于过滤器中包含或排除的函数。通常，您使用 includedEffect 强调过滤器中包含的函数，使用 excludedEffect 弱化从过滤器中排除的函数。

// apply a feature effect to features that do not
// meet the filter requirements
const featureFilter = new FeatureFilter({
  geometry: filterGeometry,
  spatialRelationship: "intersects",
  distance: distance,
  units: units
});

// set effect on excluded features
// make them gray and transparent
layer.featureEffect = new FeatureEffect({
  filter: featureFilter,
  excludedEffect: "grayscale(100%) opacity(30%)"
});