git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@1691 f3b2605a-c512-4ea7-a41b-209d697bcdaa

tools/python/dumpsort.py

@@ -0,0 +1,26 @@
+#!/usr/local/bin/python
+
+# Script:  dumpsort.py
+# Purpose: sort the snapshots in a LAMMPS dump file by atom ID
+# Syntax:  dumpsort.py oldfile N newfile
+#          oldfile = old LAMMPS dump file in native LAMMPS format
+#          N = column # for atom ID (usually 1)
+#          newfile = new sorted LAMMPS dump file
+# Author:  Steve Plimpton (Sandia), sjplimp at sandia.gov
+
+import sys,os
+path = os.environ["LAMMPS_PYTHON_TOOLS"]
+sys.path.append(path)
+from dump import dump
+
+if len(sys.argv) != 4:
+  raise StandardError, "Syntax: dumpsort.py oldfile N newfile"
+
+oldfile = sys.argv[1]
+ncolumn = int(sys.argv[2])
+newfile = sys.argv[3]
+
+d = dump(oldfile)
+d.map(ncolumn,"id")
+d.sort()
+d.write(newfile)