From 9d77b6b4c2fe3258bc4c4496ea172845d499b1fc Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Fri, 28 Feb 2020 11:16:15 +0300
Subject: [PATCH] Avoid setting 0 as a value of B-spline weight (issue #3155)

---
 src/PartSet/PartSet_BSplineWidget.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/PartSet/PartSet_BSplineWidget.cpp b/src/PartSet/PartSet_BSplineWidget.cpp
index b2e0334c7..b75504d7d 100644
--- a/src/PartSet/PartSet_BSplineWidget.cpp
+++ b/src/PartSet/PartSet_BSplineWidget.cpp
@@ -105,7 +105,10 @@ void PartSet_BSplineWidget::storePolesAndWeights() const
 
   std::list<BSplinePoleWidgets>::const_iterator anIt = myPoles.begin();
   for (int anIndex = 0; anIt != myPoles.end(); ++anIndex, ++anIt) {
-    aWeightsArray->setValue(anIndex, anIt->myWeight->value());
+    double aWeight = anIt->myWeight->value();
+    if (aWeight < THE_MIN_WEIGHT)
+      aWeight = THE_MIN_WEIGHT;
+    aWeightsArray->setValue(anIndex, aWeight);
   }
 }
 
-- 
2.39.2