From 77710e1ceca7776a6351692bc0c30e5f6375d466 Mon Sep 17 00:00:00 2001
From: Filip Leonarski <filip.leonarski@psi.ch>
Date: Sun, 27 Sep 2026 11:48:23 +0200
Subject: [PATCH] ShadowFinder: the arm search's dim plane as a zero-filled
 Plane, for the merged helpers

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D1G8gJVAy6gp1K5Dz3NE5C
---
 image_analysis/beam_stop/ShadowFinder.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/image_analysis/beam_stop/ShadowFinder.cpp b/image_analysis/beam_stop/ShadowFinder.cpp
index 29a4f83c3..715ad1198 100644
--- a/image_analysis/beam_stop/ShadowFinder.cpp
+++ b/image_analysis/beam_stop/ShadowFinder.cpp
@@ -958,7 +958,7 @@ std::vector<uint32_t> ShadowFinder::GetMask(size_t nthreads) const {
         }
     });
 
-    std::vector<char> dim(n_pixels, 0);
+    Plane<char> dim = filled_plane<char>(n_pixels, 0, nthreads);
     ParallelChunks(n_pixels, nthreads, [&](int lo, int hi) {
         for (int i = lo; i < hi; i++) {
             if (!valid[i] || region[i] || ratio[i] >= PENUMBRA_RATIO)