From 6a6787dcd9fe39e817496850679b7b4b6d63d2a1 Mon Sep 17 00:00:00 2001
From: Qi Wu <qwu@anl.gov>
Date: Sun, 7 Apr 2024 22:10:20 +0000
Subject: [PATCH] avoid throwing error for unspecified tfn range

---
 ovr/serializer/serializer_vidi3d.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ovr/serializer/serializer_vidi3d.cpp b/ovr/serializer/serializer_vidi3d.cpp
index e7f549c..1611175 100644
--- a/ovr/serializer/serializer_vidi3d.cpp
+++ b/ovr/serializer/serializer_vidi3d.cpp
@@ -270,7 +270,9 @@ create_scene_tfn(const json& jsview, ValueType type)
 
   else {
     /* calculate the volume value range ... */
-    throw std::runtime_error("unknown data range");
+    // throw std::runtime_error("unknown data range");
+    ret.value_range.x =  std::numeric_limits<float>::max();
+    ret.value_range.y = -std::numeric_limits<float>::max();
   }
 
   return ret;