old_contents: #!/usr/bin/env python
  #!/usr/bin/python
  #    This is a component of AXIS, a front-end for emc
  #    Copyright 2004, 2005, 2006 Jeff Epler <jepler@unpythonic.net> and
  #    Chris Radek <chris@timeguy.com>
  #
  #    This program is free software; you can redistribute it and/or modify
  #    it under the terms of the GNU General Public License as published by
  #    the Free Software Foundation; either version 2 of the License, or
  #    (at your option) any later version.
  #
  #    This program is distributed in the hope that it will be useful,
  #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  #    GNU General Public License for more details.
  #
  #    You should have received a copy of the GNU General Public License
  #    along with this program; if not, write to the Free Software
  #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  
  import sys, os
  BASE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), ".."))
  sys.path.insert(0, os.path.join(BASE, "lib", "python"))
  
  import emc
  
  ini = emc.ini(sys.argv[1])
  
  nproblems = 0
  def report_problem(msg, *args):
      global nproblems
      nproblems += 1
      if args:
          print msg % args
      else:
          print msg
  
  
  def get_int(section, key):
  	return int(ini.find(section, key).split()[0])
  def get_float(section, key):
  	return float(ini.find(section, key).split()[0])
  
  period = get_int("EMCMOT", "BASE_PERIOD")
  naxes = get_int("TRAJ", "AXES")
  
  is_stepper = ini.find("AXIS_0", "STEPGEN_MAXVEL") is not None
  if is_stepper: print "Appears to be a stepper configuration"
  else: print "Appears to be a servo configuration"
  
  for i in range(naxes):
      axis = "AXIS_%d" % i
      scale = get_float(axis, "INPUT_SCALE") 
      if is_stepper:
          vel = get_float(axis, "STEPGEN_MAXVEL")
          cycles_per_step = 2
          required_period = 1000000000 / vel / scale / cycles_per_step
          if required_period < period:
              report_problem(
                  "Max Velocity %g and scale %g require BASE_PERIOD below %d",
                  vel, scale, int(required_period))
  
  if nproblems == 0:
      print "No problems found"
  elif nproblems == 1:
      print "One problem found"
  else:
      print "%d problems found" % nproblems
  
  # vim:sw=4:sts=4:et
  
new_contents: #!/usr/bin/env python
  #!/usr/bin/python
  #    This is a component of AXIS, a front-end for emc
  #    Copyright 2004, 2005, 2006 Jeff Epler <jepler@unpythonic.net> and
  #    Chris Radek <chris@timeguy.com>
  #
  #    This program is free software; you can redistribute it and/or modify
  #    it under the terms of the GNU General Public License as published by
  #    the Free Software Foundation; either version 2 of the License, or
  #    (at your option) any later version.
  #
  #    This program is distributed in the hope that it will be useful,
  #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  #    GNU General Public License for more details.
  #
  #    You should have received a copy of the GNU General Public License
  #    along with this program; if not, write to the Free Software
  #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  
  import sys, os
  BASE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), ".."))
  sys.path.insert(0, os.path.join(BASE, "lib", "python"))
  
  import emc
  
  ini = emc.ini(sys.argv[1])
  
  nproblems = 0
  def report_problem(msg, *args):
      global nproblems
      nproblems += 1
      if args:
          print msg % args
      else:
          print msg
  
  
  def get_int(section, key):
  	return int(ini.find(section, key).split()[0])
  def get_float(section, key):
  	return float(ini.find(section, key).split()[0])
  
  period = get_int("EMCMOT", "BASE_PERIOD")
  naxes = get_int("TRAJ", "AXES")
  
  is_stepper = ini.find("AXIS_0", "STEPGEN_MAXVEL") is not None
  if is_stepper: print "Appears to be a stepper configuration"
  else: print "Appears to be a servo configuration"
  
  for i in range(naxes):
      axis = "AXIS_%d" % i
      scale = get_float(axis, "INPUT_SCALE") 
      if is_stepper:
          vel = get_float(axis, "STEPGEN_MAXVEL")
          cycles_per_step = 2
          required_period = 1000000000 / vel / scale / cycles_per_step
          if required_period < period:
              report_problem(
                  "Max Velocity %g and scale %g require BASE_PERIOD below %d",
                  vel, scale, int(required_period))
  
          vel = get_float(axis, "MAX_VELOCITY")
          headroom_vel = get_float(axis, "STEPGEN_MAXVEL")
          if headroom_vel < vel * 1.01:
              report_problem(
                  "Less than 1%% velocity headroom from %g to %g",
                  vel, headroom_vel)
  
          acc = get_float(axis, "MAX_ACCELERATION")
          headroom_acc = get_float(axis, "STEPGEN_MAXACCEL")
          if headroom_acc < acc * 1.01:
              report_problem(
                  "Less than 1%% acceleration headroom from %g to %g",
                  acc, headroom_acc)
  
  
  if nproblems == 0:
      print "No problems found"
  elif nproblems == 1:
      print "One problem found"
  else:
      print "%d problems found" % nproblems
  
  # vim:sw=4:sts=4:et
  
subject: check for headroom