From 4958c40d7c3b82202e7cdc2350626fa2c41a19c2 Mon Sep 17 00:00:00 2001
From: Julien Staub <atsju2@yahoo.fr>
Date: Sun, 19 Oct 2025 09:02:02 +0200
Subject: [PATCH] fix part of crash

---
 contourplot.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/contourplot.cpp b/contourplot.cpp
index 02d5adda..b702b999 100644
--- a/contourplot.cpp
+++ b/contourplot.cpp
@@ -434,7 +434,8 @@ void ContourPlot::setSurface(wavefront * wf) {
         return;
 
     initPlot();
-    m_tools->enablTools(true);
+    if(m_tools != nullptr)
+        m_tools->enablTools(true);
     m_zOffset = 0.;
     ruler();