From c0fe5f14a8f18139e15639856a8ec6799498bdb2 Mon Sep 17 00:00:00 2001
From: Dario Sassi <dario.sassi@egalware.com>
Date: Mon, 21 Aug 2023 12:06:15 +0200
Subject: [PATCH] =?UTF-8?q?EgtGeomKernel=20:=20-=20in=20CurveComposite::Co?=
 =?UTF-8?q?pyParamRange=20si=20ritorna=20nullptr=20anche=20quando=20curva?=
 =?UTF-8?q?=20risultato=20viene=20creata=20ma=20=C3=A8=20vuota.?=
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---
 CurveComposite.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CurveComposite.cpp b/CurveComposite.cpp
index 77d709d..68d74e0 100644
--- a/CurveComposite.cpp
+++ b/CurveComposite.cpp
@@ -1600,7 +1600,7 @@ CurveComposite::CopyParamRange( double dUStart, double dUEnd) const
   // eseguo il trim della copia
    if ( ! pCopy->TrimStartEndAtParam( dUStart, dUEnd))
       return nullptr ;
-   return ( ::Release( pCopy)) ;
+   return ( pCopy->m_CrvSmplS.empty() ? nullptr : ::Release( pCopy)) ;
 }
 
 //----------------------------------------------------------------------------