add ModelPrimitive

modules/overlay/primitive/ModelPrimitive.js

+/**
+ * @Author: Caven
+ * @Date: 2021-05-14 00:33:27
+ */
+
+import { Cesium } from '@dc-modules/namespace'
+import State from '@dc-modules/state/State'
+import Parse from '@dc-modules/parse/Parse'
+import { Util } from '@dc-modules/utils'
+import { Transform } from '@dc-modules/transform'
+import Overlay from '../Overlay'
+
+class ModelPrimitive extends Overlay {
+  constructor(position, modelUrl) {
+    super()
+    this._position = Parse.parsePosition(position)
+    this._modelUrl = modelUrl
+    this._delegate = Cesium.Model.fromGltf({ url: modelUrl })
+    this.type = Overlay.getOverlayType('model_primitive')
+    this._state = State.INITIALIZED
+  }
+
+  set position(position) {
+    this._position = Parse.parsePosition(position)
+    let origin = Transform.transformWGS84ToCartesian(this._position)
+    let modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(origin)
+    let hprMatrix = Cesium.Transforms.headingPitchRollToFixedFrame(
+      origin,
+      new Cesium.HeadingPitchRoll(
+        Cesium.Math.toRadians(this._position.heading),
+        Cesium.Math.toRadians(this._position.pitch),
+        Cesium.Math.toRadians(this._position.roll)
+      )
+    )
+    Cesium.Matrix4.multiply(modelMatrix, hprMatrix, modelMatrix)
+    this._delegate.modelMatrix = modelMatrix
+    return this
+  }
+
+  get position() {
+    return this._position
+  }
+
+  set modelUrl(modelUrl) {
+    this._modelUrl = modelUrl
+    this._delegate = Cesium.Model.fromGltf({ url: modelUrl })
+    this.position = this._position
+    return this
+  }
+
+  get modelUrl() {
+    return this._modelUrl
+  }
+
+  /**
+   *
+   * @private
+   */
+  _mountedHook() {
+    /**
+     * set the location
+     */
+    this.position = this._position
+  }
+
+  /**
+   * Sets style
+   * @param style
+   * @returns {ModelPrimitive}
+   */
+  setStyle(style) {
+    if (!style || Object.keys(style).length === 0) {
+      return this
+    }
+    this._style = style
+    Util.merge(this._delegate, this._style)
+    return this
+  }
+}
+
+Overlay.registerType('model_primitive')
+
+export default ModelPrimitive