text: #
  # Copyright (C) 2000-2005 by Yasushi Saito (yasushi.saito@gmail.com)
  # 
  # Jockey 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, or (at your option) any
  # later version.
  #
  # Jockey 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.
  #
  import coord
  import math
  import pychart_util
  
  class T(coord.T):
      def get_canvas_pos(self, size, val, min, max):
          return size * (val - min) / float(max - min)
  
      def get_tics(self, min, max, interval):
          v = []
          x = min
          while x <= max:
              v.append(x)
              x += interval
          return v
      def get_min_max(self, dmin, dmax, interval):
          if not interval:
              if dmax == dmin:
                  interval = 10
              else:
                  interval = 10 ** (float(int(math.log(dmax-dmin)/math.log(10))))
          dmin = min(dmin, pychart_util.round_down(dmin, interval))
          dmax = max(dmax, pychart_util.round_up(dmax, interval) + interval/2.0)
          return dmin, dmax, interval
  