From bffb7916966a384d46caafa837d8c0b8170a8be7 Mon Sep 17 00:00:00 2001
From: kovacsv <viktorkovacs@gmail.com>
Date: Fri, 30 Jul 2021 13:29:44 +0200
Subject: [PATCH] Hide isolation option when there is only one mesh in the
 model.

---
 website/o3dv/navigator.js |  5 +++++
 website/o3dv/website.js   | 18 ++++++++++--------
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/website/o3dv/navigator.js b/website/o3dv/navigator.js
index 581043f..213f572 100644
--- a/website/o3dv/navigator.js
+++ b/website/o3dv/navigator.js
@@ -213,6 +213,11 @@ OV.Navigator = class
         this.UpdateInfoPanel ();
         this.Resize ();
     }
+
+    MeshCount ()
+    {
+        return this.modelData.MeshCount ();
+    }
     
     IsMeshVisible (meshIndex)
     {
diff --git a/website/o3dv/website.js b/website/o3dv/website.js
index 40df733..93e84e1 100644
--- a/website/o3dv/website.js
+++ b/website/o3dv/website.js
@@ -165,7 +165,6 @@ OV.Website = class
             }
         } else {
             let meshIndex = meshUserData.originalMeshIndex;
-            let isMeshIsolated = this.navigator.IsMeshIsolated (meshIndex);
             items.push ({
                 name : 'Hide mesh',
                 icon : 'assets/images/context/hide.svg',
@@ -180,13 +179,16 @@ OV.Website = class
                     this.navigator.FitMeshToWindow (meshIndex);
                 }
             });
-            items.push ({
-                name : isMeshIsolated ? 'Remove isolation' : 'Isolate mesh',
-                icon : isMeshIsolated ? 'assets/images/context/deisolate.svg' : 'assets/images/context/isolate.svg',
-                onClick : () => {
-                    this.navigator.IsolateMesh (meshIndex);
-                }
-            });
+            if (this.navigator.MeshCount () > 1) {
+                let isMeshIsolated = this.navigator.IsMeshIsolated (meshIndex);
+                items.push ({
+                    name : isMeshIsolated ? 'Remove isolation' : 'Isolate mesh',
+                    icon : isMeshIsolated ? 'assets/images/context/deisolate.svg' : 'assets/images/context/isolate.svg',
+                    onClick : () => {
+                        this.navigator.IsolateMesh (meshIndex);
+                    }
+                });
+            }
         }
         this.dialog = OV.ShowListPopup (items, {
             calculatePosition : (contentDiv) => {