#!/usr/bin/python
import sys
from math import sqrt

lenses = (
  ("Arsat 30mm f/3.5", 30.0),
  ("Mir-26 45mm f/3.5", 45.0),
  ("MC PCS Arsat 55mm f/4.5", 55.0),
  ("Mir-38 65mm f/3.5", 65.0),
  ("Arsat 80mm f/2.8", 80.0),
  ("Vega 120mm f/2.8", 120.0),
  ("Kaleinar-3 150mm f/2.8", 150.0),
  ("Telear-5 250mm f/5.6<br />Jupiter-36 250mm f/3.5", 250.0),
  ("Tayir-33 300mm f/4.5-22", 300.0),
  ("MC APO Arsat 500mm f/5.6", 500.0),
)

r_120_width_ratio = (56.0 / 36.0)
r_6x6_height_ratio = (56.0 / 24.0)
r_645_height_ratio = (42.0 / 24.0)

diagonal_35mm = sqrt(36.0**2.0 + 24.0**2.0)
diagonal_6x6 = sqrt(56.0**2.0 + 56.0**2.0)
diagonal_645 = sqrt(56.0**2.0 + 42.0**2.0)

hurr = (
  ("6x6 (W)", r_120_width_ratio),
  ("6x6 (H)", r_6x6_height_ratio),
  ("6x6 (avg)", (r_120_width_ratio + r_6x6_height_ratio) / 2.0),
  ("6x6 (diag)", diagonal_6x6 / diagonal_35mm),
  ("", 0),
  ("6x4.5 (W)", r_120_width_ratio),
  ("6x4.5 (H)", r_645_height_ratio),
  ("6x4.5 (avg)", (r_120_width_ratio + r_645_height_ratio) / 2.0),
  ("6x4.5 (diag)", diagonal_645 / diagonal_35mm),
)

print "<table>"
print "<tr>"
print "<td>"
for x in hurr:
  if x[0] == "":
    print '<th style="width: 2em;"></th>'
  else:
    print "<th>%s</th>" % x[0]
    sys.stderr.write("%s: %s\n" % (x[0], round(x[1], 2)))

print "</tr>"

for lens in lenses:
  print "<tr>"
  print "<td>%s</td>" % (lens[0])
  for x in hurr:
    if x[0] == "":
      print "<td>&nbsp;</td>"
    else:
      print "<td>%smm</td>" % (int(round(lens[1] / x[1], 2)))

  print "</tr>"
print "</table>"