From bca6994dc3873c8e8b6c181206cc30bfa735b377 Mon Sep 17 00:00:00 2001
From: Remi Lehe <remi.lehe@normalesup.org>
Date: Mon, 27 Mar 2023 08:43:27 -0700
Subject: [PATCH] Update openPMD metadata (#118)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
---
 lasy/utils/openpmd_output.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lasy/utils/openpmd_output.py b/lasy/utils/openpmd_output.py
index 13c20ee2..d8463060 100644
--- a/lasy/utils/openpmd_output.py
+++ b/lasy/utils/openpmd_output.py
@@ -47,7 +47,8 @@ def write_to_openpmd_file(dim, file_prefix, file_format, grid, wavelength, pol):
     # Define the mesh
     m = i.meshes["laserEnvelope"]
     m.grid_spacing = [
-        (hi - lo) / npoints for hi, lo, npoints in zip(box.hi, box.lo, box.npoints)
+        (hi - lo) / (npoints - 1)
+        for hi, lo, npoints in zip(box.hi, box.lo, box.npoints)
     ][::-1]
     m.grid_global_offset = box.lo
     m.unit_dimension = {