From 2dbb0b3253e15752c29e2170d881e0424582df2c Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Thu, 15 Feb 2018 18:48:31 +0100
Subject: [PATCH] Scopevis NG: prevent invalid index

---
 sdrgui/dsp/scopevisng.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sdrgui/dsp/scopevisng.cpp b/sdrgui/dsp/scopevisng.cpp
index 4e7d87956..ffb3add73 100644
--- a/sdrgui/dsp/scopevisng.cpp
+++ b/sdrgui/dsp/scopevisng.cpp
@@ -794,6 +794,10 @@ void ScopeVisNG::updateMaxTraceDelay()
             maxTraceDelay = itData->m_traceDelay;
         }
 
+        if (itData->m_projectionType < 0) {
+            itData->m_projectionType = ProjectionReal;
+        }
+
         if (projectorCounts[(int) itData->m_projectionType] > 0)
         {
             allocateCache = true;