configs/config2_finger_balance_minimal.py

   1 #!/usr/bin/env python3
   2
   3 """Configuration of check_neo, mainly the weights of the cost functions. Intended to be easily modified."""
   4
   5 #: The mutated letters - only these get changed.
   6 abc = "abcdefghijklmnopqrstuvwxyzäöüß,."
   7
   8 WEIGHT_POSITION = 10 #: reference cost - gets multiplied with the COST_PER_KEY.
   9
  10 WEIGHT_FINGER_REPEATS = 320 #: Cost of a finger repeat. Gets additional +1 from the row change on the same finger.
  11
  12 WEIGHT_FINGER_REPEATS_TOP_BOTTOM = 640 #: Additional cost of a finger repetition from the top to the bottom line. Gets added to the cost of the normal finger repetition. Additionally this gets costs as row repetition on the same hand (+4).
  13
  14 WEIGHT_BIGRAM_ROW_CHANGE_PER_ROW = 1 #: When I have to switch the row in a bigram while on the same hand, that takes time => Penalty per (row to cross / horizontal distance)² if we’re on the same hand.
  15
  16 WEIGHT_COUNT_ROW_CHANGES_BETWEEN_HANDS = False #: Should we count a row change with a handswitch as row change?
  17
  18 WEIGHT_FINGER_DISBALANCE = -300 #: multiplied with the standard deviation of the finger usage - value guessed and only valid for the 1gramme.txt corus.
  19
  20 WEIGHT_TOO_LITTLE_HANDSWITCHING = 100 #: how high should it be counted, if the hands aren’t switched in a triple?
  21
  22 WEIGHT_NO_HANDSWITCH_AFTER_DIRECTION_CHANGE = 1 #: how much stronger should the triple without handswitch be counted, if there also is a direction change? Also affects the “unweighted” result from total_cost!
  23 WEIGHT_NO_HANDSWITCH_WITHOUT_DIRECTION_CHANGE = 0 #: how much stronger should the triple without handswitch be counted, if there also is a direction change? Also affects the “unweighted” result from total_cost!
  24
  25 WEIGHT_INTENDED_FINGER_LOAD_LEFT_PINKY_TO_RIGHT_PINKY = [
  26     1,
  27     2,
  28     2,
  29     2.6, # is 1/3 faster
  30     1,
  31     1,
  32     2.6,
  33     2,
  34     2,
  35     1] #: The intended load per finger. Inversed and then used as multiplier for the finger load before calculating the finger disbalance penalty. Any load distribution which strays from this optimum gives a penalty.
  36
  37 WEIGHT_XCVZ_ON_BAD_POSITION = 0.6 #: the penalty *per letter* in the text if xvcz are on bad positions (cumulative; if all 4 are on bad positions (not in the first 5 keys, counted from the left side horizontally) we get 4 times the penalty).
  38
  39 WEIGHT_FINGER_SWITCH = 1 #: how much worse is it to switch from middle to indexfinger compared with middle to pinky (~30ms according to Rohmert).
  40
  41 #: The cost for moving from one finger to another one with middle-to-index as 1 (30ms). Currently only uses the neighbors. Can also be used to favor a certain dairection. Adapted the Rohmert times as per my own experiences: http://lists.neo-layout.org/pipermail/diskussion/2010-May/017171.html and http://lists.neo-layout.org/pipermail/diskussion/2010-May/017321.html
  42 FINGER_SWITCH_COST = {
  43     "Klein_L": {"Ring_L": 2}, # 100ms
  44     "Ring_L": {"Klein_L": 3,
  45                "Mittel_L": 5}, # 140ms
  46     "Mittel_L": {"Ring_L": 4,
  47                  "Zeige_L": 1}, # Nach Rohmert 230ms statt 200ms ⇒ 30ms
  48     "Zeige_L": {"Mittel_L": 4}, # 120ms
  49     "Daumen_L": {},
  50     "Daumen_R": {},
  51     "Zeige_R": {"Mittel_R": 4},
  52     "Mittel_R": {"Zeige_R": 1,
  53                  "Ring_R": 4},
  54     "Ring_R": {"Mittel_R": 5,
  55                "Klein_R": 3},
  56     "Klein_R": {"Ring_R": 2}
  57 }
  58
  59 WEIGHT_NO_HANDSWITCH_AFTER_UNBALANCING_KEY = 1 #: How much penalty we want if there’s no handswitching after an unbalancing key. Heavy unbalancing (wkßz, M3 right, return and the shifts) counts double (see UNBALANCING_POSITIONS). This also gives a penalty for handswitching after an upparcase letter.
  60
  61 #: Positions which pull the hand from the base row, position and cost (the strength of the pulling from base row).
  62 UNBALANCING_POSITIONS = {
  63 (1, 0, 0): 2, # Tab
  64 (1, 1, 0): 1,# x
  65 (1, 5, 0): 2, # w
  66 (1, 6, 0): 2, # k
  67 (1, 10, 0): 1, # q
  68 (1, 11, 0): 2, # ß
  69 (2, 0, 0): 2, # L_M3
  70 (2, 5, 0): 1, # o
  71 (2, 6, 0): 1, # s
  72 (2, 11, 0): 1, # y
  73 (2, 12, 0): 2, # R_M3
  74 (2, 13, 0): 2, # Return
  75 (3, 0, 0): 2, # L_Shift
  76 (3, 12, 0): 2, # R_Shift
  77 (3, 6, 0): 2 # z
  78 }
  79
  80 # Structured key weighting (but still mostly from experience and deducing from the work of others).
  81 # The speed of the fingers is taken out (see INTENDED_FINGER_LOAD_LEFT_PINKY_TO_RIGHT_PINKY).
  82 # So this shows the reachability of the keys, ignoring the different speed of the fingers.
  83 # “How much does the hand hurt when reaching for the key” :)
  84 # rationale: reaching for the Neo 2 x hurts thrice as much as just hitting the Neo2 u → 10 vs. 3.
  85 # the upper keys on the right hand can be reached a bit better, since movement is aligned with the hand
  86 # (except for q, since the pinky is too short for that).
  87 # theoretical minimum (assigning the lowest cost to the most frequent char, counting only the chars on layer 1):
  88 # 1123111113 = 3.3490913205386508 mean key position cost
  89 # Ringfinger on lower row takes 1.5 times the time of index on the upper row[1].
  90 # [1]: http://forschung.goebel-consult.de/de-ergo/rohmert/Rohmert.html - only one person!
  91 COST_PER_KEY  = [ # the 0 values aren’t filled in at the moment.
  92     [0,     0, 0, 0, 0, 0,     0, 0, 0, 0, 0,22, 0, 0], # Zahlenreihe (0)
  93     [0,    10, 6, 5, 6, 9,    10, 5, 4, 5, 8,12,18, 0], # Reihe 1
  94     [0,     3, 3, 3, 3, 5,     5, 3, 3, 3, 3, 5,10,18], # Reihe 2
  95     [15,10,12,12,10, 10,   15, 7, 6,11,11,10,   15],     # Reihe 3
  96     [0,0,0,               3           , 0, 0, 0, 0] # Reihe 4 mit Leertaste
  97 ]
  98
  99 # for reference the neo layout
 100 NEO = [
 101     [("^"),("1"),("2"),("3"),("4"),("5"),("6"),("7"),("8"),("9"),("0"),("-"),("`"),("←")], # Zahlenreihe (0)
 102     [("⇥"),("x"),("v"),("l"),("c"),("w"),("k"),("h"),("g"),("f"),("q"),("ß"),("´"),()], # Reihe 1
 103     [("⇩"),("u"),("i"),("a"),("e"),("o"),("s"),("n"),("r"),("t"),("d"),("y"),("⇘"),("\n")], # Reihe 2
 104     [("⇧"),(),("ü"),("ö"),("ä"),("p"),("z"),("b"),("m"),(","),("."),("j"),("⇗")],        # Reihe 3
 105     [(), (), (), (" "), (), (), (), ()] # Reihe 4 mit Leertaste
 106 ]
 107
 108
 109 #: The positions which are by default accessed by the given finger.
 110 FINGER_POSITIONS = {
 111     "Klein_L": [(1, 1, 0), (2, 0, 0), (2, 1, 0), (3, 0, 0), (3, 1, 0), (3, 2, 0)], # Klein_L
 112     "Ring_L": [(1, 2, 0), (2, 2, 0), (3, 3, 0)], # Ring_L
 113     "Mittel_L": [(1, 3, 0), (2, 3, 0), (3, 4, 0)], # Mittel_L
 114     "Zeige_L": [(1, 4, 0), (2, 4, 0), (3, 5, 0), (1, 5, 0), (2, 5, 0), (3, 6, 0)], # Zeige_L
 115     "Daumen_L": [(4, 3, 0)], # Daumen_L
 116     "Daumen_R": [(4, 3, 0)], # Daumen_R
 117     "Zeige_R": [(1, 6, 0), (2, 6, 0), (3, 7, 0), (1, 7, 0), (2, 7, 0), (3, 8, 0)], # Zeige_R
 118     "Mittel_R": [(1, 8, 0), (2, 8, 0), (3, 9, 0)], # Mittel_R
 119     "Ring_R": [(1, 9, 0), (2, 9, 0), (3, 10, 0)], # Ring_R
 120     "Klein_R": [(1, 10, 0), (2, 10, 0), (3, 11, 0), (1, 11, 0), (2, 11, 0), (1, 12, 0), (2, 12, 0), (2, 13, 0), (3, 12, 0)] # Klein_R
 121 }