From fc1f97ae80a2effb42db6d4005aedb07536659d3 Mon Sep 17 00:00:00 2001
From: Hamidreza <hamid.r.norouzi@gmail.com>
Date: Fri, 1 Aug 2025 20:23:36 +0330
Subject: [PATCH] bug fix for pFlowToVTK for issue #72 in Plus branch

---
 utilities/pFlowToVTK/pointFieldToVTK.cpp | 13 +++++++------
 utilities/pFlowToVTK/pointFieldToVTK.hpp |  4 ++--
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/utilities/pFlowToVTK/pointFieldToVTK.cpp b/utilities/pFlowToVTK/pointFieldToVTK.cpp
index 34dfcf6b..d19d62f9 100644
--- a/utilities/pFlowToVTK/pointFieldToVTK.cpp
+++ b/utilities/pFlowToVTK/pointFieldToVTK.cpp
@@ -225,8 +225,9 @@ bool pFlow::PFtoVTK::addUndstrcuturedGridField(
 
     os << "DATASET UNSTRUCTURED_GRID\n";
     
-    if (numPoints == 0)
-        return true;
+    // this is commented to resolve the problem of no particle in paraview
+    //if (numPoints == 0)
+    //    return true;
 
     os << "POINTS " << numPoints << " float"<<'\n';
     if(bindaryOutput__)
@@ -349,8 +350,8 @@ bool pFlow::PFtoVTK::addRealPointField(
     const real *field,
     uint32 numData)
 {
-    if (numData == 0)
-        return true;
+    //if (numData == 0)
+    //    return true;
 
     os << "FIELD FieldData 1\n"
        << fieldName << " 1 " << numData << " float\n";
@@ -380,8 +381,8 @@ bool pFlow::PFtoVTK::addRealx3PointField(
     const realx3 *field,
     uint32 numData)
 {
-    if (numData == 0)
-        return true;
+    //if (numData == 0)
+    //    return true;
 
     os << "FIELD FieldData 1\n"
        << fieldName << " 3 " << numData << " float\n";
diff --git a/utilities/pFlowToVTK/pointFieldToVTK.hpp b/utilities/pFlowToVTK/pointFieldToVTK.hpp
index eed2d60d..000260a7 100755
--- a/utilities/pFlowToVTK/pointFieldToVTK.hpp
+++ b/utilities/pFlowToVTK/pointFieldToVTK.hpp
@@ -131,8 +131,8 @@ namespace pFlow::PFtoVTK
 		uint32 numData)
 	{
 
-		if (numData == 0)
-			return true;
+		//if (numData == 0)
+		//	return true;
 
 		if(std::is_same_v<IntType, int> || std::is_same_v<IntType, const int> )
 		{