From 2800fa4f32f3900509cb4d6eefaf2bfaf54efdd7 Mon Sep 17 00:00:00 2001
From: 罗广辉 <guanghui.luo@foxmail.com>
Date: Mon, 21 Apr 2025 18:29:09 +0800
Subject: [PATCH] fix: 天气显示
---
src/utils/cesium/mapUtil.js | 33 +++++++++++++++++++++++++++++++++
1 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/src/utils/cesium/mapUtil.js b/src/utils/cesium/mapUtil.js
index 176ecca..e0230e2 100644
--- a/src/utils/cesium/mapUtil.js
+++ b/src/utils/cesium/mapUtil.js
@@ -347,3 +347,36 @@
return true
}
}
+
+/**
+ * 飞到中心点并且所有点在可视范围
+ * @param lngLatArr
+ * @param viewer
+ * @param rangeMultiple 范围倍数越大飞的越高默认2
+ */
+export function flyVisual(lngLatArr,viewer,rangeMultiple = 2) {
+ if (!Array.isArray(lngLatArr) || lngLatArr.length === 0) return
+ const positions = lngLatArr.map(([lon, lat]) =>
+ Cesium.Cartesian3.fromDegrees(Number(lon), Number(lat))
+ )
+ // 计算包围盒 BoundingSphere（所有点的外接球）
+ const boundingSphere = Cesium.BoundingSphere.fromPoints(positions)
+ viewer.camera.flyToBoundingSphere(boundingSphere, {
+ duration: 0,
+ offset: new Cesium.HeadingPitchRange(0, 0, boundingSphere.radius * rangeMultiple),
+ })
+}
+
+// 获取视口地图中心点
+export function getMapCenterPoint(viewer) {
+ const centerResult = viewer.camera.pickEllipsoid(
+ new Cesium.Cartesian2(
+ viewer.canvas.clientWidth / 2,
+ viewer.canvas.clientHeight / 2
+ )
+ );
+ const curPosition = Cesium.Ellipsoid.WGS84.cartesianToCartographic(centerResult);
+ const longitude = (curPosition.longitude * 180) / Math.PI;
+ const latitude = (curPosition.latitude * 180) / Math.PI;
+ return { longitude, latitude };
+}
--
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