代码迁移

src/Global/DTH/changeClassificationPrimitive.js

@@ -0,0 +1,37 @@
+function changeClassificationPrimitive(options, array) {
+  this.options = options
+  this.array = array
+}
+
+changeClassificationPrimitive.prototype.getGeometry = function () {
+  return Cesium.PolygonGeometry.createGeometry(this.options);
+};
+changeClassificationPrimitive.prototype.update = function (context, frameState, commandList) {
+  var geometry = this.getGeometry();
+  if (!geometry) {
+    return;
+  }
+
+  this._primitive = new Cesium.ClassificationPrimitive({
+    geometryInstances: new Cesium.GeometryInstance({
+      geometry: geometry,
+      id: {
+        type: 'dth',
+        ...this.array,
+      },
+      attributes: {
+        color: Cesium.ColorGeometryInstanceAttribute.fromColor(
+          Cesium.Color.fromRandom({ alpha: 0.5 })
+        ),
+        show: new Cesium.ShowGeometryInstanceAttribute(true),
+      }
+    }),
+    classificationType: Cesium.ClassificationType.CESIUM_3D_TILE,
+  });
+  var primitive = this._primitive
+
+  primitive.update(context, frameState, commandList);
+
+};
+
+export { changeClassificationPrimitive }