From df7d438554bbf4dc4ddddb81432cdb008bf3292a Mon Sep 17 00:00:00 2001
From: cbwu <504-wuchengbo@htsdfp.com>
Date: Wed, 10 Apr 2024 14:04:57 +0800
Subject: [PATCH] =?UTF-8?q?perf:=20=E4=BC=98=E5=8C=96=E5=9B=BE=E7=89=87?=
 =?UTF-8?q?=E6=98=BE=E7=A4=BA=E6=B8=85=E6=99=B0=E5=BA=A6=E3=80=82?=
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---
 src/utils/map/sceneViewer.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/utils/map/sceneViewer.ts b/src/utils/map/sceneViewer.ts
index be13450..f34ed52 100644
--- a/src/utils/map/sceneViewer.ts
+++ b/src/utils/map/sceneViewer.ts
@@ -2,7 +2,7 @@
  * @Author: cbwu 504-wuchengbo@htsdfp.com
  * @Date: 2024-03-13 09:32:21
  * @LastEditors: cbwu
- * @LastEditTime: 2024-04-10 08:39:25
+ * @LastEditTime: 2024-04-10 14:02:37
  * @Description:
  */
 // Viewer初始化
@@ -61,6 +61,14 @@ function initViewer(container: string | Element): Viewer {
   // 限制相机缩放
   viewer.scene.screenSpaceCameraController.minimumZoomDistance = 200 //相机的高度的最小值
   viewer.scene.screenSpaceCameraController.maximumZoomDistance = 20000000 //相机高度的最大值
+  // 设置设备像素比，可能会影响渲染性能
+  // viewer.resolutionScale = window.devicePixelRatio
+  // 视图重绘后确保清晰度
+  viewer.scene.preRender.addEventListener(function () {
+    if (viewer.resolutionScale !== window.devicePixelRatio) {
+      viewer.resolutionScale = window.devicePixelRatio
+    }
+  })
   // 去掉entity的点击事件（双击、单击）
   viewer.cesiumWidget.screenSpaceEventHandler.removeInputAction(
     ScreenSpaceEventType.LEFT_DOUBLE_CLICK,