Salamander retinal ganglian cells: morphology influences firing (Sheasby, Fohlmeister 1999)

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Accession:18501
Nerve impulse entrainment and other excitation and passive phenomena are analyzed for a morphologically diverse and exhaustive data set (n=57) of realistic (3-dimensional computer traced) soma-dendritic tree structures of ganglion cells in the tiger salamander (Ambystoma tigrinum) retina.
Reference:
1 . Sheasby BW, Fohlmeister JF (1999) Impulse encoding across the dendritic morphologies of retinal ganglion cells. J Neurophysiol 81:1685-98 [PubMed]
Model Information (Click on a link to find other models with that property)
Model Type: Neuron or other electrically excitable cell;
Brain Region(s)/Organism:
Cell Type(s): Retina ganglion GLU cell;
Channel(s): I Na,t; I A; I K; I K,Ca; I Calcium;
Gap Junctions:
Receptor(s):
Gene(s):
Transmitter(s):
Simulation Environment: NEURON;
Model Concept(s): Action Potential Initiation; Activity Patterns; Dendritic Action Potentials; Bursting; Coincidence Detection; Simplified Models; Active Dendrites; Influence of Dendritic Geometry; Detailed Neuronal Models; Axonal Action Potentials; Action Potentials; Calcium dynamics;
Implementer(s): Sheasby, Brent W ;
Search NeuronDB for information about:  Retina ganglion GLU cell; I Na,t; I A; I K; I K,Ca; I Calcium;
/
sheasbyfohlmeister1999
MediumSimple
LWS9287N
lws9287n.asc
lws9287n.hoc
                            
/*----------------------------------------------------------------
%W%  %G%
lws9287n.asc  translated Tue Dec 17 10:29:56 1996 by ntscable 2.0
source file syntax: Eutectic
output file syntax: CABLE
soma: diameter = 14.2764 um  length = 25.6015 um  area = 1148.24 um2
      21 three-D points; 23 outline points numbered 1-23
      outline diameter = 20.248 um
2 primary neurites
30 branches totaling 2879.2 um in length, 3722.4 um2 in area
997 tree points translated to 319 segments (1 requested)
Neurites divided into segments of equal dx between adjacent digitized
branch points.
Segment length constrained to be < 10 um.
No. points   1020
No. trees       3
Text  NOT ASSIGNED                                                                                                            

----------------------------------------------------------------*/
					/* create sections */
create    soma,\
          dend1[1],\
          dend2[57]



/*----------------------------------------------------------------*/
proc geometry() { local i, j

						/* soma geometry */
    soma {
        nseg = 1
        pt3dclear()
        for j = 1, fscan() {
            pt3dadd(fscan(),fscan(),fscan(),fscan())
        }
    }

					/* connect primary neurites */
    soma connect dend1[0] (0), 0.5
    soma connect dend2[0] (0), 0.5


					/* neurite geometry*/
    for i = 0,0 {
        dend1[i] {
            nseg = fscan()
            pt3dclear()
            for j = 1, fscan() {
                pt3dadd(fscan(),fscan(),fscan(),fscan())
            }
        }
    }

    for i = 0,56 {
        dend2[i] {
            nseg = fscan()
            pt3dclear()
            for j = 1, fscan() {
                pt3dadd(fscan(),fscan(),fscan(),fscan())
            }
        }
    }



					/* branching topology*/
    for i = 1,0 {
        dend1[fscan()] connect dend1[i] (0), fscan()
    }

    for i = 1,56 {
        dend2[fscan()] connect dend2[i] (0), fscan()
    }

}

geometry()


SOMA COORDINATES AND DIAMETERS:

    21
    -0.5        8      0.5        0
    -0.5     6.75      0.5      2.5
    -0.5        5     0.25   6.0208
       1     4.75     0.25   10.512
       1    4.375   0.3125   11.256
       2    4.625   0.4375   14.751
     2.5      4.5    0.625   16.002
       4      4.5        1   19.026
     4.5   4.4375        1     19.9
       6     4.25        1   22.522
     8.5     4.25   1.1562   22.511
      10   4.4375     1.25    22.88
    10.5   4.5714   1.2143   22.864
    11.5   3.9643  0.89286   21.073
    13.5     3.65     1.55   19.414
      14     3.75     1.75   18.668
    15.5        3      1.5   14.142
      16     2.85      1.5   12.857
    17.5      2.9     2.25    7.816
    17.5     4.65     2.25    4.329
      18        6      2.5        0


NEURITE COORDINATES AND DIAMETERS:

    11 33
    13.5     -3.5     -0.5      0.4
      18       -3     -0.5      0.4
      21       -5       -1      0.4
      23       -6        0      0.4
    24.5       -7        0      0.3
    26.5       -8        0      0.3
    29.5       -9        0      0.3
    32.5     -8.5        0      0.3
    34.5     -7.5        0      0.3
      37     -8.5        0      0.3
    39.5    -11.5     -0.5      0.3
    39.5    -15.5     -0.5      0.3
      38    -17.5       -1      0.3
    37.5    -19.5       -1      0.3
      39      -22     -0.5      0.3
      39    -24.5       -2      0.3
    39.5      -27       -2      0.2
      41    -30.5       -2      0.2
      41      -34       -2      0.2
    41.5      -38       -2      0.2
      43      -41       -1      0.2
      44    -43.5       -1      0.2
    42.5    -46.5       -1      0.2
    44.5    -47.5       -1      0.2
    47.5    -49.5       -1      0.2
      49    -53.5       -1      0.2
      49    -57.5     -1.5      0.2
      50      -61     -1.5      0.2
    47.5    -64.5       -1      0.2
    49.5    -68.5       -1      0.2
    47.5    -71.5       -1      0.2
    47.5    -74.5       -1      0.2
      49    -75.5       -1      0.2

    3 8
       9     14.5      2.5      3.4
       9       17        4      3.2
     8.5     20.5      3.5      3.2
     7.5       22      3.5      3.2
       7     24.5        4      3.2
     5.5       27        3      2.9
     5.5       30      4.5      2.5
     4.5     32.5      4.5      3.4

    18 70
     4.5     32.5      4.5      3.4
     1.5       33      5.5      0.6
    -0.5     33.5        7      0.7
    -3.5       35      5.5      0.7
    -4.5       36        6      0.6
    -5.5       38      7.5      0.6
      -8     39.5      7.5      0.6
    -9.5     41.5      7.5      0.6
    -9.5     44.5        8      0.6
   -10.5     45.5        7      0.6
   -12.5       46        7      0.6
   -12.5       48        8      1.1
     -14       50        8      0.6
     -14       52      8.5      0.6
     -14       55      8.5      0.6
   -14.5       58        9      0.6
   -14.5     60.5        9      0.6
     -14       62      8.5      0.6
     -13     63.5      8.5      0.6
     -14     65.5      8.5      0.6
     -15     68.5      8.5      0.5
   -16.5     70.5      8.5      1.1
   -15.5     73.5      8.5      0.5
   -16.5       75        9      0.5
     -18     75.5       10      0.5
     -19       77       10      0.5
     -19     79.5     10.5      0.5
   -20.5     80.5     10.5      0.5
     -22       82     10.5      0.5
   -22.5     83.5       11      0.5
   -22.5       86     11.5      0.6
     -24     88.5       12      0.6
   -22.5       90     12.5      0.6
     -22     92.5     12.5      0.6
   -24.5       94     12.5      0.7
     -27     96.5       13      0.7
     -27     99.5       13      0.7
   -24.5       99     12.5      0.7
     -24      101     12.5      0.7
     -25    103.5       13      0.7
     -24    105.5     12.5      0.8
     -22      109       12      0.8
     -21    111.5       12      0.8
     -20    114.5       12      0.8
   -18.5    116.5       12      0.8
   -16.5    119.5     12.5      0.8
     -14      121     13.5      0.8
     -12      124     13.5      0.8
    -9.5    125.5       14      0.7
      -8      129       14      0.7
      -5    130.5       14      0.7
    -5.5    132.5       14      0.7
    -3.5      133       14      0.7
      -2    134.5       14      0.7
    -1.5      136     13.5      0.7
    -0.5    138.5     13.5      0.7
     1.5    139.5     13.5      0.7
       2      142     14.5      0.7
     0.5      143     14.5      0.7
      -1      145     14.5      0.7
       1      148     14.5      0.7
       0    149.5     13.5      0.7
       0    151.5       13      0.7
       0    153.5       12      0.7
       1    155.5     11.5      0.7
     2.5    156.5     11.5      0.7
       2    158.5       11      0.7
     3.5      160       10      0.7
       7      160       10      0.7
     8.5      160        9      0.7

    6 25
     8.5      160        9      0.7
      10    162.5        9      0.4
      11    164.5        9      0.4
      12    166.5        9      0.4
    12.5    168.5        9      0.4
    11.5    170.5        9      0.4
      13      172        9      0.4
      15    173.5      9.5      0.4
    14.5    175.5       10      0.3
      15      178      9.5      0.3
      16    180.5       10      0.3
      15      182       10      0.3
    13.5    183.5     10.5      0.3
    15.5    184.5      9.5      0.3
    14.5    186.5     10.5      0.3
      14      188       11      0.3
    14.5    190.5       11      0.3
    12.5    190.5     11.5      0.3
      11    191.5       11      0.3
      12      193       11      0.3
      10      194       11      0.3
       8    194.5       11      0.3
       6      196       11      0.3
     5.5      198       11      0.3
       5      200     10.5      0.3

    1 2
       5      200     10.5      0.3
       4    201.5     11.5      0.3

    1 3
       5      200     10.5      0.3
       7    200.5      9.5      0.3
     7.5      201       10      1.4

    5 17
     7.5      201       10      1.4
     6.5    203.5       10      0.2
     7.5      206       10      0.2
       9    208.5      9.5      0.2
    10.5    210.5      9.5      0.2
      12    213.5        9      0.2
      14    215.5        9      0.2
    13.5    218.5        9      0.2
      15      221       10      0.2
    15.5      224       10      0.2
      16      227       10      0.2
      18    228.5      9.5      0.2
      20      231      9.5      0.2
    23.5      232      9.5      0.2
      25    234.5      9.5      0.2
      27      234     10.5      0.2
      28    234.5       10      0.2

    2 5
     7.5      201       10      1.4
      10      202       10      0.2
      13      203       10      0.2
    14.5      202      9.5      0.2
      16    200.5      8.5      0.5

    5 12
     8.5      160        9      0.7
      12    158.5      9.5      0.5
      15    158.5      8.5      0.5
      17      156        8      0.5
      19      155        9      0.5
      25    152.5     10.5      0.5
      28    151.5        9      0.5
      31    150.5        9      0.5
      35    150.5       10      0.5
      39    150.5       10      0.5
    42.5    151.5     10.5      0.5
    44.5      153       10      0.5

    1 4
    44.5      153       10      0.5
      46      154     10.5      0.4
      48    155.5     10.5      0.4
      50    156.5     10.5      1.2

    4 14
      50    156.5     10.5      1.2
    50.5    158.5       10      0.3
    52.5      161      9.5      0.3
      56    163.5       10      0.2
      57    166.5       10      0.2
      59    168.5      9.5      0.2
      60      170      9.5      0.2
    60.5      171      9.5      0.2
    62.5    172.5       10      0.2
      67    174.5       10      0.2
      69    174.5      9.5      0.2
      70      176      9.5      0.2
    71.5    176.5       10      0.2
    71.5    176.5       10      0.2

    8 31
      50    156.5     10.5      1.2
    53.5    155.5     10.5      0.2
      55    154.5     10.5      0.2
      57      155     10.5      0.2
    59.5    155.5     10.5      0.2
    61.5    154.5     10.5      0.2
      63    152.5       12      0.2
      66    152.5     12.5      0.2
      65    151.5     12.5      0.2
    67.5      151     12.5      0.2
    69.5    150.5     12.5      0.2
      73      149     13.5      0.2
    74.5      148     13.5      0.2
    76.5    147.5     13.5      0.2
    79.5    147.5     13.5      0.2
    82.5    146.5     12.5      0.2
      84    146.5     13.5      0.2
    86.5    144.5     13.5      0.2
    87.5      142     13.5      0.2
      88    139.5       14      0.2
    89.5    137.5       14      0.2
    92.5    137.5       14      0.2
      95      136       14      0.1
    94.5      134       15      0.1
    96.5    131.5       16      0.1
    98.5    130.5     15.5      0.1
    99.5      129     15.5      0.1
   102.5      128     15.5      0.1
     104      126     15.5      0.1
   106.5      125     15.5      0.1
     109      125     15.5      0.1

    2 8
    44.5      153       10      0.5
    45.5      151       12      0.5
    46.5    148.5     12.5      0.5
    48.5    147.5     12.5      0.4
      49      146     13.5      0.4
    50.5      145     13.5      0.3
    53.5    143.5     14.5      0.7
    54.5    142.5       15      0.7

    4 13
    54.5    142.5       15      0.7
      58      143       15      0.2
      60      143     15.5      0.2
    62.5    141.5     15.5      0.2
    64.5      140       16      0.2
    66.5      139     15.5      0.2
    68.5      139       16      0.2
      70    137.5     16.5      0.2
      70    134.5       17      0.2
      70    132.5     15.5      0.2
      70      130       15      0.2
      69      129     14.5      0.2
      70    125.5       16      0.2

    3 12
    54.5    142.5       15      0.7
    53.5    141.5       16      0.2
    55.5    140.5       16      0.2
      55      138       16      0.2
      54    136.5       16      0.2
      55      135       16      0.2
      57    133.5       16      0.2
    58.5      132       16      0.2
    60.5      131       16      0.2
    61.5      131       16      0.2
      63    129.5       16      0.2
      65      130     15.5      0.2

    3 11
     4.5     32.5      4.5      3.4
     6.5     34.5        4        2
       7       38        5        2
       7     40.5      5.5        2
     7.5     42.5      6.5        2
     7.5       45        7        2
       8     47.5        7        2
       9     49.5      7.5        2
      10       51        8        2
    10.5     53.5      8.5        2
    10.5       56      9.5      2.6

    1 4
    10.5       56      9.5      2.6
    10.5       59      9.5        2
     9.5     61.5        9        2
      10       64        9        2

    4 17
      10       64        9        2
       8     65.5       10      0.5
       6       67     10.5      0.5
     4.5       68       10        1
     3.5     68.5       12        1
       2     69.5       12        1
     0.5     71.5       12      0.7
      -1       73       12      0.7
    -2.5       74       12      0.7
    -4.5       75       12      0.9
    -7.5       76       12      0.9
   -10.5       77       12      0.9
   -13.5     76.5       12      0.9
     -15     75.5     12.5      0.9
   -17.5     75.5     12.5      0.9
   -19.5       75     12.5      0.9
     -22     74.5       13      1.3

    11 42
     -22     74.5       13      1.3
   -23.5       73     12.5      0.9
     -25       72     12.5      0.9
     -26     70.5     12.5      0.9
     -27       69       13      0.9
     -29       65       13      0.8
   -30.5       63       13      0.8
     -32     62.5     12.5      0.8
   -32.5     60.5     12.5      0.8
   -33.5       59       13      0.7
   -34.5     57.5       13      0.7
     -36     55.5     13.5      0.7
     -38       54     13.5      0.7
   -39.5     52.5     13.5      0.7
   -41.5     51.5       14      0.7
   -42.5       50       14      0.7
     -46     48.5       14      0.7
   -47.5     47.5       14      0.7
     -49       46       14      0.7
   -51.5     45.5       14      0.7
   -53.5     44.5       14      0.7
   -56.5     44.5       14      0.7
   -59.5       44       14      0.7
     -63       43     13.5      0.7
   -65.5       42     13.5      0.7
   -67.5     40.5     12.5      0.7
     -70     39.5       13      0.7
     -72     38.5       13      0.7
     -74       37       13      0.7
     -76     35.5     12.5      0.7
     -79       34       13      0.7
   -80.5     33.5       12      0.7
     -81     31.5     12.5      0.7
   -84.5       31       13      0.7
   -86.5     29.5       13      0.7
   -88.5     27.5       13      0.7
   -91.5     26.5       12      0.7
   -93.5       26       12      0.7
     -96       24       13      0.7
     -99     24.5     11.5      0.7
    -101     21.5     11.5      0.7
  -102.5       22     11.5      0.7

    1 5
  -102.5       22     11.5      0.7
    -103       21       10      0.6
    -105     19.5      9.5      0.6
  -105.5       18      8.5      0.6
  -107.5     17.5      9.5      1.3

    12 42
  -107.5     17.5      9.5      1.3
  -106.5     14.5        8      0.3
    -108     13.5        8      0.2
    -110       12      7.5      0.2
    -110      9.5      7.5      0.2
  -111.5        8      7.5      0.2
  -113.5      6.5      7.5      0.2
    -113      3.5        7      0.2
  -114.5        2        7      0.2
  -114.5      0.5        8      0.2
  -112.5       -2      8.5      0.2
    -114       -5      7.5      0.2
  -113.5     -7.5        7      0.2
  -112.5     -8.5      8.5      0.2
  -111.5      -10      7.5      0.2
    -111    -12.5        9      0.2
    -108    -13.5        9      0.2
  -108.5    -15.5      7.5      0.2
  -109.5      -17      8.5      0.2
    -108      -18      8.5      0.2
  -105.5      -19      9.5      0.2
    -100      -19      8.5      0.2
   -98.5      -17      8.5      0.2
   -96.5      -16        9      0.2
   -93.5    -16.5        9      0.2
   -90.5    -12.5      6.5      0.2
     -88    -11.5      6.5      0.2
   -87.5      -10      7.5      0.2
     -87       -9      6.5      0.2
     -86       -7        6      0.2
   -84.5     -5.5        7      0.2
     -83       -3        6      0.2
     -83     -1.5        7      0.2
     -79        0        7      0.2
   -75.5      0.5        7      0.2
     -74        0      7.5      0.2
     -72        0        8      0.2
   -69.5        3      6.5      0.2
     -66      4.5      6.5      0.1
     -64        5        6      0.1
     -61        5        7      0.1
     -55      4.5        7      0.1

    2 9
  -107.5     17.5      9.5      1.3
    -108       17        9      0.4
  -109.5     18.5        9      0.4
  -111.5     19.5      8.5      0.4
    -115       19      8.5      0.4
    -117     19.5       10      0.4
  -119.5       21      9.5      0.4
    -122       21      8.5      0.4
    -123     19.5        9      1.4

    4 14
    -123     19.5        9      1.4
    -123     16.5        9      0.2
  -124.5     14.5      9.5      0.2
    -125       12       10      0.2
  -125.5        9        9      0.2
    -125        6        9      0.2
    -126      3.5       10      0.2
    -127        1      8.5      0.2
  -128.5       -3       10      0.2
    -130       -5      8.5      0.2
    -131     -6.5      8.5      0.2
    -131     -8.5       10      0.2
  -131.5      -11      9.5      0.2
  -131.5      -12      8.5      0.2

    4 15
    -123     19.5        9      1.4
  -125.5     20.5       10      0.2
    -127     21.5       10      0.2
    -130       23       10      0.2
  -132.5     22.5       10      0.2
  -135.5     22.5        9      0.2
  -138.5       22       10      0.2
    -140     20.5        9      0.2
    -143       20        9      0.2
    -147       18        9      0.2
  -148.5       17        9      0.2
    -151     17.5        9      0.2
    -153     16.5       10      0.2
    -155     14.5      8.5      0.2
    -156     14.5      8.5      0.2

    6 23
  -102.5       22     11.5      0.7
  -103.5       22     11.5      0.9
  -107.5     21.5       13      0.3
  -109.5       21       13      0.3
    -112       21       13      0.3
    -115       21     12.5      0.3
  -116.5       22       13      0.3
  -118.5       20     12.5      0.3
    -120     19.5       13      0.3
  -122.5       19       13      0.3
    -125     18.5     13.5      0.3
    -129     18.5     13.5      0.3
    -131     17.5     13.5      0.3
  -131.5       16       12      0.3
    -134     14.5       12      0.3
    -135     12.5       12      0.3
    -137       11       12      0.3
    -139      8.5     11.5      0.3
    -141        8       13      0.3
    -143      6.5     12.5      0.3
  -144.5        6       13      0.3
    -147        5       13      0.3
  -148.5        5       13      0.3

    9 30
     -22     74.5       13      1.3
     -23       76       13      0.3
     -24     77.5       13      0.3
     -27     77.5       13      0.3
   -30.5       79     13.5      0.1
     -33       81       13      0.1
   -34.5       82     12.5      0.1
     -37     84.5     12.5      0.1
   -39.5       88     12.5      0.1
   -42.5     90.5       10      0.1
   -44.5       91        9      0.1
     -45     93.5      8.5      0.1
     -46     95.5      8.5      0.1
   -46.5     97.5      8.5      0.1
     -47     99.5        9      0.1
     -48    100.5        8      0.1
     -48    103.5        8      0.1
   -51.5    103.5        8      0.1
   -55.5    103.5      9.5      0.1
     -58      104       10      0.1
     -60    104.5       10      0.1
     -63    107.5     11.5      0.1
     -63    111.5     12.5      0.1
   -63.5      114       12      0.1
   -65.5    115.5       12      0.1
     -65      118       12      0.1
   -67.5      120     12.5      0.1
     -69    122.5       12      0.1
   -69.5      125       10      0.1
     -69    125.5       10      0.1

    1 2
      10       64        9        2
    10.5     63.5      9.5      2.2

    1 2
    10.5     63.5      9.5      2.2
      10       67      9.5      2.2

    2 7
      10       67      9.5      2.2
       8       68      9.5      1.2
     6.5     70.5      9.5      1.2
       7     72.5      9.5      1.2
       4       74        9      1.2
     2.5     77.5        9      1.2
     0.5     79.5        9      1.2

    6 20
     0.5     79.5        9      1.2
    -1.5     79.5      8.5      1.2
    -3.5       82      8.5      1.2
      -7     82.5      8.5      1.2
      -9     83.5      8.5      1.2
     -12       84      8.5      1.2
     -14       84        9      1.2
     -16     84.5        9      1.2
     -19     84.5        9      1.2
   -21.5       85      9.5      1.2
     -24       85      9.5      1.2
   -25.5     86.5     10.5      1.2
   -28.5     86.5     10.5      1.1
     -30     85.5     10.5      1.1
   -32.5     86.5     10.5      1.1
     -35       87      9.5      1.1
     -38       88      9.5      1.1
   -40.5     88.5        9      1.1
     -43     88.5        9      1.1
     -46     88.5        9      1.4

    2 7
     -46     88.5        9      1.4
   -49.5       87       10      0.4
   -50.5     85.5        9      0.4
     -53     84.5     10.5      0.5
     -54     82.5     10.5      0.5
   -55.5     81.5     10.5      0.5
   -56.5     80.5     10.5      0.5

    8 28
   -56.5     80.5     10.5      0.5
   -56.5       77     10.5      0.2
   -56.5       74       11      0.2
   -56.5     71.5       11      0.2
     -56       69     11.5      0.2
     -56       67     10.5      0.2
     -54       65     10.5      0.2
   -54.5       62       10      0.2
     -56     60.5       10      0.2
   -57.5     56.5       10      0.2
   -55.5     53.5       10      0.2
     -55       50       10      0.2
     -54     48.5       10      0.2
   -52.5     47.5     10.5      0.2
     -51     45.5      9.5      0.2
   -49.5       43      9.5      0.2
   -48.5     38.5       10      0.2
   -48.5     36.5       11      0.2
   -47.5     34.5     10.5      0.2
     -44       33     10.5      0.2
     -45     33.5     11.5      0.2
     -41       33       11      0.2
     -37       33       11      0.2
     -36     29.5     11.5      0.1
     -35     28.5       11      0.1
   -33.5       27       11      0.1
     -32     25.5       11      0.1
     -32       25       11      0.1

    12 44
   -56.5     80.5     10.5      0.5
   -58.5     79.5     11.5      0.4
   -58.5       78     12.5      0.4
     -62     76.5     12.5      0.4
     -64     75.5     13.5      0.4
   -65.5       74     13.5      0.4
   -66.5     72.5     13.5      0.4
     -69       71     14.5      0.4
   -70.5       70     15.5      0.4
   -72.5       69     15.5      0.4
   -74.5     68.5     15.5      0.4
     -76     67.5     15.5      0.4
     -78       67     15.5      0.4
     -81       66       16      0.4
     -83       65       15      0.4
     -85     64.5       15      0.4
     -89       63     15.5      0.4
   -92.5     62.5     15.5      0.4
     -94     60.5     15.5      0.4
   -96.5     59.5       15      0.4
     -98     58.5     15.5      0.4
    -101       58     15.5      0.4
    -102       57     16.5      0.4
  -104.5       57       16      0.4
    -107       58       16      0.4
  -110.5     57.5       16      0.4
    -113     56.5       16      0.4
  -115.5     54.5       17      0.4
  -116.5     55.5     16.5      0.3
    -118       57       17      0.3
    -121     56.5       17      0.3
  -121.5     53.5       17      0.3
  -123.5       53       18      0.3
    -125       52       18      0.3
    -127       51     17.5      0.3
  -128.5     52.5     18.5      0.3
    -130       52       19      0.3
  -131.5     52.5       20      0.3
    -135       53     19.5      0.3
    -137       53       20      0.3
    -140     52.5     21.5      0.2
    -145       53       22      0.2
    -147       52       22      0.2
  -148.5       53     18.5      0.2

    7 29
     -46     88.5        9      1.4
   -46.5     90.5      8.5      1.1
   -47.5     92.5      8.5        1
     -51       95      8.5        1
   -52.5     95.5        8        1
     -55       98        8        1
     -57     97.5      8.5        1
     -60     97.5        9        1
     -61     99.5        9        1
   -63.5      101      8.5        1
   -64.5    102.5        7        1
   -65.5      104        7        1
   -66.5    104.5        8      0.9
     -66      107      8.5      0.9
   -68.5    108.5      7.5      0.9
   -69.5      109      8.5      0.9
   -70.5    110.5      8.5      0.9
   -71.5      112      8.5      0.9
   -73.5      113      8.5      0.9
     -76      115      8.5      0.9
   -75.5    118.5        9      0.9
   -77.5      119        9      0.9
     -79      120        9      0.9
   -80.5      121      9.5      0.9
     -83    124.5       10      1.1
   -85.5    126.5     10.5      1.1
     -87      128     10.5      1.1
   -88.5      129     10.5      1.1
   -89.5      129     10.5      1.1

    6 19
   -89.5      129     10.5      1.1
   -91.5      128       11      0.9
   -95.5      128       11      0.9
     -97      127     10.5      0.9
   -99.5    126.5       11      0.9
    -102    126.5       11      0.9
    -104      126       11      0.9
  -107.5      127       11      0.9
  -110.5    127.5     11.5      0.9
    -114      129       12      0.9
  -115.5    130.5       12      0.9
    -118    132.5     12.5      0.9
  -121.5    132.5     12.5      0.9
  -124.5      135     13.5      0.8
    -127      136       13      0.6
  -128.5    137.5     13.5      0.6
    -130      140     13.5      0.6
  -131.5    141.5     13.5      0.6
    -132      145     13.5      2.4

    5 16
    -132      145     13.5      2.4
  -134.5      145     13.5      0.3
  -136.5      145     14.5      0.3
    -138      145     13.5      0.3
    -139    146.5     14.5      0.3
    -141    147.5       15      0.2
    -143      148       15      0.2
    -147    149.5       16      0.2
  -149.5    149.5       16      0.2
  -151.5    148.5       16      0.2
    -156    148.5     15.5      0.2
  -159.5    146.5     15.5      0.2
    -164    146.5       16      0.2
  -166.5    145.5       16      0.2
  -168.5      146       15      0.2
  -171.5    144.5       15      0.2

    4 11
    -132      145     13.5      2.4
  -128.5      148     13.5      0.3
    -127    149.5     13.5      0.3
    -126      153     13.5      0.3
    -122      154     13.5      0.3
    -120      157       13      0.3
    -118      159       13      0.3
    -115      163     12.5      0.3
    -113      166     12.5      0.3
    -110      168     12.5      0.3
    -109      169     12.5      0.8

    3 10
    -109      169     12.5      0.8
    -107    171.5     12.5      0.3
  -105.5      174     12.5      0.3
  -103.5      177     12.5      0.3
    -101      180     12.5      0.3
   -99.5    181.5       13      0.1
     -97      185       14      0.1
     -95    187.5       14      0.1
   -93.5      189     14.5      0.1
   -91.5      192     14.5      0.1

    4 14
   -91.5      192     14.5      0.1
   -91.5      193       16      0.1
   -91.5    195.5       16      0.1
   -90.5      198       16      0.1
   -89.5    201.5       16      0.1
     -89    204.5       16      0.1
     -89    207.5       16      0.1
   -88.5    209.5       16      0.1
     -88    212.5       15      0.1
     -88    214.5     15.5      0.1
   -89.5    219.5     15.5      0.1
   -90.5    222.5     15.5      0.1
   -93.5      224     15.5      0.1
   -94.5    224.5     15.5      0.1

    3 7
   -91.5      192     14.5      0.1
     -87    192.5       16      0.1
   -85.5    194.5       16      0.1
   -80.5      195       16      0.1
   -80.5    199.5       16      0.1
   -74.5    199.5       16      0.1
   -71.5      200       16      0.1

    13 39
    -109      169     12.5      0.8
    -106    170.5       13      0.3
    -101      173       13      0.3
   -96.5      174     12.5      0.3
   -95.5    174.5       13      0.3
     -92    176.5     12.5      0.3
   -88.5      178     12.5      0.3
   -84.5    180.5       12      0.2
   -80.5      182       12      0.2
   -78.5      185       12      0.2
     -75      186       12      0.2
   -72.5      187       12      0.2
     -70    189.5       13      0.2
     -66    190.5     12.5      0.2
     -68    192.5     12.5      0.2
     -64    194.5     12.5      0.2
     -63      196     12.5      0.2
     -61      196     14.5      0.2
   -61.5    197.5       15      0.2
     -58      197     14.5      0.2
     -55      198       14      0.2
     -53    199.5     14.5      0.2
   -50.5      200     14.5      0.2
     -48    200.5     14.5      0.2
     -45      201     14.5      0.2
     -42      200     13.5      0.2
     -39    199.5       14      0.2
     -35    199.5       15      0.2
     -29      201       14      0.2
     -28      204       15      0.2
   -24.5      207       15      0.2
     -25      210       15      0.2
   -21.5      213     16.5      0.2
   -20.5    214.5       16      0.2
   -18.5      217     15.5      0.2
   -18.5    220.5       15      0.2
   -19.5    222.5       14      0.2
   -18.5    225.5       14      0.2
   -18.5    225.5       14      0.2

    5 17
   -89.5      129     10.5      1.1
   -88.5    130.5     12.5      0.4
   -89.5    133.5       13      0.4
     -90    136.5     13.5      0.4
   -92.5      138     13.5      0.4
     -91      141     13.5      0.4
   -92.5    144.5       14      0.4
     -92    147.5       14      0.3
     -94      150     15.5      0.3
   -94.5    151.5       15      0.3
     -95      153     15.5      0.3
     -97      154     15.5      0.3
  -100.5    156.5       16      0.3
  -101.5      159       16      0.3
  -103.5      163     16.5      0.3
  -105.5      163       16      0.3
  -106.5      163     16.5      0.9

    3 9
  -106.5      163     16.5      0.9
  -107.5      160     16.5      0.2
    -110      161     16.5      0.2
  -114.5      161     16.5      0.2
    -116      162     16.5      0.2
  -117.5    161.5       17      0.2
  -120.5      161       17      0.2
  -122.5    158.5       17      0.2
    -123    158.5       17      0.2

    6 18
  -106.5      163     16.5      0.9
    -108      165     16.5      0.2
    -110    165.5     16.5      0.2
  -112.5      167     16.5      0.2
  -115.5      169     17.5      0.2
    -117      171       18      0.2
    -116      175     18.5      0.2
    -117      178     18.5      0.2
  -119.5      180       18      0.2
    -122      183       19      0.2
    -121      187       18      0.2
  -121.5    190.5     17.5      0.2
  -121.5    194.5     16.5      0.2
  -118.5      198     16.5      0.2
  -122.5    201.5     16.5      0.2
    -121    204.5       19      0.2
    -121      207     20.5      0.2
    -121      208     20.5      0.2

    12 36
     0.5     79.5        9      1.2
       2       82        9      0.3
       3       84        9      0.3
     7.5       87        9      0.3
      10       89        9      0.3
    11.5       88     10.5      0.3
    16.5       90     10.5      0.3
      19       89     10.5      0.3
      21       90      9.5      0.3
      24       91     10.5      0.3
      27     93.5     10.5      0.3
    29.5       93     10.5      0.3
      32       97     10.5      0.3
    34.5     97.5     10.5      0.3
      37       99     10.5      0.3
    39.5    100.5     10.5      0.3
      42    104.5     10.5      0.3
      43    106.5     10.5      0.3
    45.5      108     10.5      0.3
      48    110.5     10.5      0.3
      49    112.5     10.5      0.3
      53    114.5     11.5      0.3
      55      117       11      0.3
      56      118       12      0.3
      58      120       11      0.3
      59      122       12      0.3
      61      124     12.5      0.3
    61.5      125     12.5      0.3
      65    127.5       12      0.2
      67      127       12      0.2
    69.5    133.5       12      0.1
      72      135       12      0.1
      74      135       13      0.1
    76.5    135.5       13      0.1
    77.5      138     12.5      0.1
    79.5      139     12.5      0.1

    4 17
      10       67      9.5      2.2
      12       67     10.5      0.4
    12.5     69.5       10      0.4
      13     71.5     10.5      0.4
      14     73.5     10.5      0.4
      14     75.5     11.5      0.4
    13.5       77       12      0.4
      12       79     12.5      0.4
      15     80.5     13.5      0.4
      16     82.5     12.5      0.4
      16     84.5     13.5      0.4
    17.5     86.5       14      0.7
      16     88.5       14      0.5
      18     91.5     14.5      0.5
    17.5     93.5       14      0.5
    17.5       96       14      0.5
      19     96.5       15      1.1

    17 52
      19     96.5       15      1.1
    16.5       99     15.5      0.3
    14.5      101     15.5      0.3
    13.5    102.5     15.5      0.3
    14.5    104.5     14.5      0.3
    14.5      106     15.5      0.3
    13.5    108.5     15.5      0.3
      11    110.5     15.5      0.3
      11      113     14.5      0.3
     8.5    115.5     14.5      0.3
     6.5      119     14.5      0.3
     7.5      122     14.5      0.3
     9.5      125     14.5      0.3
       9    128.5       15      0.3
     9.5    131.5       15      0.3
      11    132.5       15      0.3
    11.5    136.5       15      0.3
       9    138.5       15      0.4
       8    140.5       15      0.4
       8      143       15      0.4
     9.5    146.5       15      0.4
    10.5      148       15      0.4
    11.5      151       15      0.4
      12    154.5       15      0.4
    13.5      155     15.5      0.4
      16    158.5       15      0.4
      17      161     15.5      0.4
    18.5    162.5     15.5      0.3
    15.5    164.5     15.5      0.3
      19    166.5       16      0.3
      19      170       15      0.3
      17      172       16      0.3
    16.5      178       16      0.3
    18.5    179.5       16      0.3
      18      183       16      0.3
    15.5    185.5       15      0.3
      18    187.5     15.5      0.3
      19    190.5       15      0.3
    20.5      192       16      0.3
    24.5    193.5       16      0.3
      29      196     15.5      0.3
      31    197.5       16      0.3
    32.5      199     15.5      0.3
      33    201.5     15.5      0.3
      36      203       15      0.3
      42      205       16      0.3
      44      205     16.5      0.3
    45.5    208.5       16      0.2
    49.5      210     16.5      0.2
      52    212.5     16.5      0.2
      55    215.5       16      0.2
    55.5      217     16.5      0.2

    4 14
    55.5      217     16.5      0.2
    54.5      219     16.5      0.1
      52      218     15.5      0.1
      48      218     15.5      0.1
      47    220.5       17      0.1
    44.5    221.5       17      0.1
    42.5      221     16.5      0.1
    41.5      225       17      0.1
      39      222       17      0.1
    35.5    223.5       17      0.1
    33.5      222       17      0.1
      32      225       17      0.1
    31.5      227       17      0.1
      31    228.5     17.5      0.1

    2 7
    55.5      217     16.5      0.2
    57.5    217.5     16.5      0.1
      61    219.5     17.5      0.1
      64    222.5     17.5      0.1
      64      226     17.5      0.1
    65.5      228     17.5      0.1
    66.5    228.5       18      0.1

    3 9
      19     96.5       15      1.1
      21       97       16      0.3
    23.5       97       16      0.3
    25.5     98.5       16      0.3
      28       99       16      0.3
      30      100       16      0.3
      35      101     16.5      0.3
      37    100.5       17      0.3
    39.5      101       17      0.3

    7 21
    39.5      101       17      0.3
    38.5      103     16.5      0.3
      39      106       17      0.3
    40.5      108       17      0.3
    40.5      112       17      0.2
      42    113.5       17      0.2
      44      116       17      0.2
      45    118.5     16.5      0.2
    45.5      122       17      0.2
    47.5    123.5       16      0.2
    50.5    125.5     15.5      0.2
      52      127       17      0.2
    52.5      130       17      0.2
      52      133       17      0.2
    53.5      137       17      0.2
    53.5      141     18.5      0.2
      55    144.5     18.5      0.2
    51.5      145     18.5      0.2
      52      148     18.5      0.2
      50      151     18.5      0.2
    51.5      154     17.5      0.2

    9 23
    39.5      101       17      0.3
    41.5    101.5     17.5      0.2
    44.5    102.5     17.5      0.2
    45.5    104.5       18      0.2
    49.5    104.5     18.5      0.2
      53      107     18.5      0.2
      57    108.5     18.5      0.2
    60.5      111     18.5      0.2
    64.5    110.5     17.5      0.2
    67.5    111.5       19      0.2
    69.5      113     18.5      0.2
      72    118.5     18.5      0.2
    71.5      121     18.5      0.2
    73.5      126     18.5      0.2
      76    129.5       18      0.2
      79    134.5     17.5      0.2
    79.5    135.5       19      0.2
      79      139       19      0.2
    81.5    143.5       19      0.2
      84      149     19.5      0.2
      86      153       19      0.2
      87    155.5     18.5      0.2
      87      156     18.5      0.2

    2 6
    10.5     63.5      9.5      2.2
    12.5       64     10.5      0.3
    15.5       66     10.5      0.3
      18       66     10.5      0.3
    21.5       68       10      0.3
    23.5     71.5     10.5      0.7

    4 10
    23.5     71.5     10.5      0.7
    25.5       74      9.5      0.2
    28.5       74      8.5      0.2
      31       75      8.5      0.2
      34     77.5      8.5      0.2
      36     76.5      9.5      0.2
    38.5       80      9.5      0.2
    42.5     80.5       11      0.2
    44.5       82     11.5      0.2
    47.5       79     11.5      0.2

    10 28
    23.5     71.5     10.5      0.7
    27.5       72     10.5      0.2
      30     75.5       11      0.2
    30.5       78       11      0.2
    32.5       81     11.5      0.2
    34.5     83.5     11.5      0.2
      38       86     10.5      0.2
      40     87.5     10.5      0.2
    41.5       89     10.5      0.2
    46.5     93.5       10      0.2
    48.5       94       10      0.2
    51.5     92.5       10      0.2
      54     93.5       10      0.2
      58     92.5     10.5      0.2
    61.5       95       12      0.2
      63       96     12.5      0.2
    69.5       96       13      0.2
    69.5     97.5     14.5      0.2
    73.5      100       16      0.2
    75.5    100.5       16      0.2
      78    101.5       16      0.2
    82.5      104     15.5      0.2
    83.5      109     17.5      0.2
      86      109     17.5      0.2
      89    111.5     17.5      0.2
      92    114.5     17.5      0.2
      94    114.5     18.5      0.2
      95      116     18.5      0.2

    5 18
    10.5       56      9.5      2.6
    14.5       54     12.5      0.2
    18.5       53       13      0.7
    19.5       52     12.5      0.4
      27     50.5       14      0.2
    27.5     49.5       14      0.2
    29.5       50     15.5      0.2
    31.5       50     16.5      0.2
      34       51       17      0.2
    36.5       50       16      0.2
    37.5       48     15.5      0.2
    37.5     45.5     15.5      0.2
    37.5     43.5     15.5      0.2
    37.5       41     15.5      0.2
      38     40.5     15.5      0.2
      39       38     15.5      0.2
      39     35.5     15.5      0.2
      41       34       16      0.2

    11 25
      41       34       16      0.2
      44     34.5     16.5      0.2
      46     33.5     16.5      0.2
    48.5       34     16.5      0.2
      50       33     16.5      0.2
      54     32.5       18      0.2
    55.5       30       18      0.2
    57.5       30       18      0.2
    59.5     30.5     17.5      0.2
    62.5     31.5     18.5      0.2
    66.5       33     18.5      0.2
    68.5       36     18.5      0.2
      75       41       17      0.2
      78       41       19      0.2
      82     41.5     17.5      0.2
      86       43       20      0.2
      88       43     20.5      0.2
      92     44.5       19      0.2
      99     46.5       20      0.2
     115       51     20.5      0.2
   117.5     56.5       19      0.2
     120     53.5       20      0.2
   124.5       60       20      0.2
     128     62.5       20      0.2
   130.5     63.5       20      0.2

    6 19
      41       34       16      0.2
    39.5       32     16.5      0.2
    41.5     29.5       17      0.2
      45     29.5     17.5      0.2
      49     28.5     17.5      0.2
      51       29       19      0.2
      53       27       19      0.2
      57     27.5     19.5      0.2
      57     25.5     19.5      0.2
      60     25.5     19.5      0.2
    62.5     26.5       19      0.2
    65.5     24.5       20      0.2
    68.5       21       20      0.2
      69     19.5       20      0.2
    71.5       20     20.5      0.2
    73.5     19.5       20      0.2
    75.5       18     20.5      0.2
    77.5       15     20.5      0.2
      78     15.5       19      0.2


CONNECTIONS:

        0    1
        1    1
        2    1
        2    1
        4    1
        4    1
        1    1
        7    1
        8    1
        8    1
        7    1
       11    1
       11    1
        0    1
       14    1
       15    1
       16    1
       17    1
       18    1
       18    1
       20    1
       20    1
       17    1
       16    1
       15    1
       25    1
       26    1
       27    1
       28    1
       29    1
       29    1
       28    1
       32    1
       33    1
       33    1
       35    1
       36    1
       36    1
       35    1
       32    1
       40    1
       40    1
       27    1
       26    1
       44    1
       45    1
       45    1
       44    1
       48    1
       48    1
       25    1
       51    1
       51    1
       14    1
       54    1
       54    1


/*----------------------------------------------------------------*/
proc geometry() { 

	/* NULL geometry procedure: keeps the user from
	calling the geometry procedure in isolation. */

    printf("\nYou must re-read the entire geometry\n")
    printf("file to execute geometry().\n\n")
}


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