From b6506f3dea454c16acb939de3094fd10ed3dc344 Mon Sep 17 00:00:00 2001
From: mahmoud adel <58145645+mahmoudadel54@users.noreply.github.com>
Date: Mon, 11 Sep 2023 13:21:31 +0300
Subject: [PATCH] #9163 Bug 3D Tiles offset with Google 3D tiles (#9421)

---
 .../components/map/cesium/plugins/ThreeDTilesLayer.js       | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/web/client/components/map/cesium/plugins/ThreeDTilesLayer.js b/web/client/components/map/cesium/plugins/ThreeDTilesLayer.js
index 7d72c1decf..8e0d750c09 100644
--- a/web/client/components/map/cesium/plugins/ThreeDTilesLayer.js
+++ b/web/client/components/map/cesium/plugins/ThreeDTilesLayer.js
@@ -44,9 +44,9 @@ function getStyle({ style }) {
 function updateModelMatrix(tileSet, { heightOffset }) {
     if (!isNaN(heightOffset) && isNumber(heightOffset)) {
         const boundingSphere = tileSet.boundingSphere;
-        const cartographic = Cesium.Cartographic.fromCartesian(boundingSphere.center);
-        const surface = Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, 0.0);
-        const offset = Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, heightOffset);
+        const cartographic = Cesium.Cartographic.fromCartesian(boundingSphere.center);          // undefined if the cartesian is at the center of the ellipsoid
+        const surface = Cesium.Cartesian3.fromRadians(cartographic?.longitude || 0, cartographic?.latitude || 0, 0.0);
+        const offset = Cesium.Cartesian3.fromRadians(cartographic?.longitude || 0, cartographic?.latitude || 0, heightOffset);
         const translation = Cesium.Cartesian3.subtract(offset, surface, new Cesium.Cartesian3());
         tileSet.modelMatrix =  Cesium.Matrix4.fromTranslation(translation);
     }