From 39c1be6bc0fcce383e0892e7d656b67c0a373fd1 Mon Sep 17 00:00:00 2001
From: "andrey.bychkov" <andrey@signalmodelling.ru>
Date: Wed, 18 Feb 2026 20:03:27 +0300
Subject: [PATCH] fix filterElements

---
 libs/main/containers/pivector2d.h | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/libs/main/containers/pivector2d.h b/libs/main/containers/pivector2d.h
index 895f7293..537ded76 100644
--- a/libs/main/containers/pivector2d.h
+++ b/libs/main/containers/pivector2d.h
@@ -1668,16 +1668,12 @@ public:
 		return result;
 	}
 
-	//! \~english Returns a new 2D array (as a single row) containing only the elements that pass the test.
-	//! \~russian Возвращает новый двумерный массив (в виде одной строки), содержащий только элементы, прошедшие проверку.
+	//! \~english Returns a new plain array containing only the elements that pass the test.
+	//! \~russian Возвращает новый одноменый массив, содержащий только элементы, прошедшие проверку.
 	//! \param test Predicate taking a const T&.
-	//! \return A 1xN 2D array with the filtered elements (or empty).
+	//! \return PIVector<T> with the filtered elements (or empty).
 	//! \sa PIVector::filter()
-	inline PIVector2D<T> filterElements(std::function<bool(const T &)> test) const {
-		PIVector<T> filtered = mat.filter(test);
-		if (filtered.isEmpty()) return PIVector2D<T>();
-		return PIVector2D<T>(1, filtered.size(), filtered);
-	}
+	inline PIVector<T> filterElements(std::function<bool(const T &)> test) const { return mat.filter(test); }
 
 protected:
 	size_t rows_, cols_;