1 files changed, 31 insertions, 0 deletions
diff --git a/Source/Utils/RelativeCellPosition.H b/Source/Utils/RelativeCellPosition.H
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+++ b/Source/Utils/RelativeCellPosition.H
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+/* Copyright 2020 Axel Huebl
+ *
+ * This file is part of WarpX.
+ *
+ * License: BSD-3-Clause-LBNL
+ */
+#ifndef WARPX_RELATIVE_CELL_POSITION_H_
+#define WARPX_RELATIVE_CELL_POSITION_H_
+
+#include "WarpX.H"
+
+#include <AMReX_MultiFab.H>
+
+#include <vector>
+
+
+namespace utils
+{
+    /** Get the Relative Cell Position of Values in an MultiFab
+     *
+     * Translate the IndexType of a given MultiFab into a position relative to
+     * the lower corner of a cell.
+     *
+     * @param[in] mf the amrex::MultiFab to get relative cell positions for
+     * @return relative position to the lower corner, scaled to cell size [0.0:1.0)
+     */
+    std::vector< double >
+    getRelativeCellPosition (amrex::MultiFab const& mf);
+}
+
+#endif // WARPX_RELATIVE_CELL_POSITION_H_