diff --git a/src/Obj/Base/TextBox/index.js b/src/Obj/Base/TextBox/index.js
index 0179243..5c6f3da 100644
--- a/src/Obj/Base/TextBox/index.js
+++ b/src/Obj/Base/TextBox/index.js
@@ -53,8 +53,7 @@ class TextBox extends Base {
 
     // 配置CSS样式和内容结构
     viewer.cesiumWidget.container.appendChild(dom);
-    let posi = Cesium.Cartesian3.fromDegrees(that.options.position.lng.toFixed(4), that.options.position.lat.toFixed(4), that.options.position.alt.toFixed(4))
-
+    let posi = Cesium.Cartesian3.fromDegrees(that.options.position.lng, that.options.position.lat, that.options.position.alt)
     that.handler = function () {
       const position = Cesium.SceneTransforms.wgs84ToWindowCoordinates(
         viewer.scene, posi
@@ -72,20 +71,31 @@ class TextBox extends Base {
   }
   async setHandeler(data) {
     let that = this
-    const ray = this.sdk.viewer.camera.getPickRay(new Cesium.Cartesian2(data.x, data.y));
-    var cartesian = this.sdk.viewer.scene.globe.pick(ray, this.sdk.viewer.scene);
+
+    let cartesian = this.sdk.viewer.scene.pickPosition(new Cesium.Cartesian2(data.x, data.y)); //屏幕坐标转为笛卡尔空间坐标
+    // if (!cartesian) return;
+
+    // let c = Cesium.Cartographic.fromCartesian(position);
+    if (!cartesian) {
+      const ray = this.sdk.viewer.camera.getPickRay(new Cesium.Cartesian2(data.x, data.y));
+      cartesian = this.sdk.viewer.scene.globe.pick(ray, this.sdk.viewer.scene);
+    }
+
     if (Cesium.defined(cartesian)) {
       that.sdk.viewer.scene.postRender.removeEventListener(that.handler);
 
       var cartographic = Cesium.Cartographic.fromCartesian(cartesian);
       var longitude = Cesium.Math.toDegrees(cartographic.longitude);
       var latitude = Cesium.Math.toDegrees(cartographic.latitude);
+
+      let height = await that.getClampToHeight({ lng: longitude, lat: latitude })
       that.position = {
         lng: longitude,
         lat: latitude,
         alt: cartographic.height
+        // alt: height
       }
-      let posi = Cesium.Cartesian3.fromDegrees(longitude.toFixed(4), latitude.toFixed(4), cartographic.height.toFixed(4))
+      let posi = Cesium.Cartesian3.fromDegrees(longitude, latitude, cartographic.height)
 
       that.handler = function () {
         const position = Cesium.SceneTransforms.wgs84ToWindowCoordinates(