代码迁移

src/Global/ExportKml/index.js

@@ -0,0 +1,53 @@
+/**
+ * @name: index
+ * @author: Administrator
+ * @date: 2023-09-11 16:41
+ * @description：index
+ * @update: 2023-09-11 16:41
+ */
+import BillboardObject from "../../Obj/Base/BillboardObject";
+import PolygonObject from "../../Obj/Base/PolygonObject";
+import PolylineObject from "../../Obj/Base/PolylineObject";
+import Circle from "../../Obj/Base/CircleDiffuse";
+
+function exportKml(list = []) {
+
+  let entities = new Cesium.EntityCollection();
+  list.forEach(entity => {
+    if (
+      entity instanceof BillboardObject ||
+      entity instanceof PolygonObject ||
+      entity instanceof Circle ||
+      entity instanceof PolylineObject
+    ) {
+      entities.add(entity.entity)
+    }
+  })
+  if (entities.values.length) {
+    let promise = Cesium.exportKml({entities})
+    promise.then(e => {
+      // Cesium.exportKml(e.kml,)
+      funDownload(e.kml, new Date().getTime() + ".kml")
+    })
+  } else {
+    console.error("允许导出为kml的对象为空")
+  }
+}
+
+function funDownload(content, filename) {
+  let eleLink = document.createElement("a");
+  eleLink.download = filename;
+  eleLink.style.display = "none";
+  // 字符内容转变成blob地址
+  let blob = new Blob([content]);
+  eleLink.href = URL.createObjectURL(blob);
+  // 触发点击
+  document.body.appendChild(eleLink);
+  eleLink.click();
+  // 然后移除
+  document.body.removeChild(eleLink);
+}
+
+
+export default exportKml
+