From c14fee9f76a46b231fc17564673195b081518e1e Mon Sep 17 00:00:00 2001
From: hamed musallam <hamed.musallam@gmail.com>
Date: Mon, 15 Jun 2026 15:31:41 +0200
Subject: [PATCH] fix: filter 2d ft spectra

---
 src/component/hooks/use2DReducer.tsx            | 9 ++++++---
 src/component/reducer/actions/SpectraActions.ts | 2 +-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/component/hooks/use2DReducer.tsx b/src/component/hooks/use2DReducer.tsx
index 8be13e5c2..639bacef6 100644
--- a/src/component/hooks/use2DReducer.tsx
+++ b/src/component/hooks/use2DReducer.tsx
@@ -26,17 +26,20 @@ export function use2DReducer(): SpectrumFTData[] {
 
   return useMemo(() => {
     const outputSpectra: SpectrumFTData[] = [];
-    for (const spectrum of getSpectraByNucleus(activeTab, data).filter(
-      isFt2DSpectrum,
-    )) {
+    const spectra = getSpectraByNucleus(activeTab, data).filter(isFt2DSpectrum);
+    for (const spectrum of spectra) {
       const { id, display, data } = spectrum;
       const { rr } = data;
+
       const reducedData = reduce2DSpectrum(rr, {
         fromX,
         fromY,
         toX,
         toY,
       });
+      if (reducedData.z.length === 0) {
+        continue;
+      }
       outputSpectra.push({
         data: reducedData,
         id,
diff --git a/src/component/reducer/actions/SpectraActions.ts b/src/component/reducer/actions/SpectraActions.ts
index aaff485fe..2f4bb83be 100644
--- a/src/component/reducer/actions/SpectraActions.ts
+++ b/src/component/reducer/actions/SpectraActions.ts
@@ -415,7 +415,7 @@ function handleChangeActiveSpectrum(
   const refreshDomain =
     (previousActiveSpectraHasFT === undefined ||
       previousActiveSpectraHasFT !== newActiveSpectraHasFT) &&
-    spectra &&
+    !!spectra &&
     spectra?.length > 0 &&
     spectraIds?.length > 0;