http://www.geometrictools.com/LibPhysics/RigidBody/RigidBody.html in surfaceInertia utility. Allows calculation of shell or solid properties of a triSurface, with optionally specified volumetric or surface density. Default behaviour is to calculate inertia around centre of mass, with option to specify reference point. Various test surfaces supplied and tested against analytical results.
297 lines
3.9 KiB
Plaintext
297 lines
3.9 KiB
Plaintext
# Wavefront OBJ file
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# Regions:
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# 0 movingWall
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# 1 fixedWalls
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# 2 frontAndBack
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#
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# points : 96
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# triangles : 188
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#
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v 0.1 0.1 0.5
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v 0.1 0.1 0.5625
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v 0.16 0.1 0.5625
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v 0.16 0.1 0.5
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v 0.1 0.1 0.625
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v 0.16 0.1 0.625
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v 0.1 0.1 0.6875
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v 0.16 0.1 0.6875
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v 0.1 0.1 0.75
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v 0.16 0.1 0.75
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v 0.22 0.1 0.5625
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v 0.22 0.1 0.5
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v 0.22 0.1 0.625
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v 0.22 0.1 0.6875
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v 0.22 0.1 0.75
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v 0.28 0.1 0.5625
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v 0.28 0.1 0.5
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v 0.28 0.1 0.625
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v 0.28 0.1 0.6875
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v 0.28 0.1 0.75
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v 0.34 0.1 0.5625
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v 0.34 0.1 0.5
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v 0.34 0.1 0.625
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v 0.34 0.1 0.6875
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v 0.34 0.1 0.75
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v 0.4 0.1 0.5625
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v 0.4 0.1 0.5
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v 0.4 0.1 0.625
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v 0.4 0.1 0.6875
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v 0.4 0.1 0.75
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v 0.1 -0.3 0.5
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v 0.1 -0.3 0.5625
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v 0.1 -0.166667 0.5625
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v 0.1 -0.166667 0.5
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v 0.1 -0.0333333 0.5625
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v 0.1 -0.0333333 0.5
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v 0.1 -0.3 0.625
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v 0.1 -0.166667 0.625
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v 0.1 -0.0333333 0.625
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v 0.1 -0.3 0.6875
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v 0.1 -0.166667 0.6875
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v 0.1 -0.0333333 0.6875
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v 0.1 -0.3 0.75
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v 0.1 -0.166667 0.75
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v 0.1 -0.0333333 0.75
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v 0.4 -0.3 0.5
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v 0.4 -0.166667 0.5
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v 0.4 -0.166667 0.5625
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v 0.4 -0.3 0.5625
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v 0.4 -0.0333333 0.5
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v 0.4 -0.0333333 0.5625
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v 0.4 -0.166667 0.625
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v 0.4 -0.3 0.625
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v 0.4 -0.0333333 0.625
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v 0.4 -0.166667 0.6875
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v 0.4 -0.3 0.6875
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v 0.4 -0.0333333 0.6875
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v 0.4 -0.166667 0.75
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v 0.4 -0.3 0.75
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v 0.4 -0.0333333 0.75
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v 0.16 -0.3 0.5
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v 0.16 -0.3 0.5625
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v 0.16 -0.3 0.625
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v 0.16 -0.3 0.6875
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v 0.16 -0.3 0.75
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v 0.22 -0.3 0.5
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v 0.22 -0.3 0.5625
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v 0.22 -0.3 0.625
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v 0.22 -0.3 0.6875
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v 0.22 -0.3 0.75
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v 0.28 -0.3 0.5
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v 0.28 -0.3 0.5625
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v 0.28 -0.3 0.625
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v 0.28 -0.3 0.6875
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v 0.28 -0.3 0.75
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v 0.34 -0.3 0.5
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v 0.34 -0.3 0.5625
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v 0.34 -0.3 0.625
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v 0.34 -0.3 0.6875
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v 0.34 -0.3 0.75
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v 0.16 -0.166667 0.5
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v 0.16 -0.0333333 0.5
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v 0.22 -0.166667 0.5
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v 0.22 -0.0333333 0.5
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v 0.28 -0.166667 0.5
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v 0.28 -0.0333333 0.5
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v 0.34 -0.166667 0.5
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v 0.34 -0.0333333 0.5
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v 0.16 -0.166667 0.75
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v 0.16 -0.0333333 0.75
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v 0.22 -0.166667 0.75
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v 0.22 -0.0333333 0.75
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v 0.28 -0.166667 0.75
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v 0.28 -0.0333333 0.75
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v 0.34 -0.166667 0.75
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v 0.34 -0.0333333 0.75
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g movingWall
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f 1 2 3
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f 3 4 1
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f 2 5 6
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f 6 3 2
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f 5 7 8
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f 8 6 5
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f 7 9 10
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f 10 8 7
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f 4 3 11
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f 11 12 4
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f 3 6 13
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f 13 11 3
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f 6 8 14
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f 14 13 6
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f 8 10 15
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f 15 14 8
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f 12 11 16
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f 16 17 12
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f 11 13 18
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f 18 16 11
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f 13 14 19
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f 19 18 13
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f 14 15 20
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f 20 19 14
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f 17 16 21
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f 21 22 17
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f 16 18 23
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f 23 21 16
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f 18 19 24
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f 24 23 18
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f 19 20 25
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f 25 24 19
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f 22 21 26
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f 26 27 22
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f 21 23 28
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f 28 26 21
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f 23 24 29
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f 29 28 23
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f 24 25 30
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f 30 29 24
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g fixedWalls
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f 31 32 33
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f 33 34 31
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f 34 33 35
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f 35 36 34
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f 36 35 2
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f 2 1 36
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f 32 37 38
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f 38 33 32
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f 33 38 39
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f 39 35 33
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f 35 39 5
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f 5 2 35
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f 37 40 41
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f 41 38 37
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f 38 41 42
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f 42 39 38
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f 39 42 7
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f 7 5 39
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f 40 43 44
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f 44 41 40
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f 41 44 45
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f 45 42 41
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f 42 45 9
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f 9 7 42
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f 46 47 48
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f 48 49 46
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f 47 50 51
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f 51 48 47
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f 50 27 26
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f 26 51 50
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f 49 48 52
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f 52 53 49
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f 48 51 54
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f 54 52 48
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f 51 26 28
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f 28 54 51
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f 53 52 55
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f 55 56 53
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f 52 54 57
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f 57 55 52
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f 54 28 29
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f 29 57 54
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f 56 55 58
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f 58 59 56
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f 55 57 60
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f 60 58 55
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f 57 29 30
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f 30 60 57
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f 31 61 62
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f 62 32 31
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f 32 62 63
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f 63 37 32
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f 37 63 64
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f 64 40 37
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f 40 64 65
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f 65 43 40
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f 61 66 67
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f 67 62 61
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f 62 67 68
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f 68 63 62
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f 63 68 69
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f 69 64 63
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f 64 69 70
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f 70 65 64
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f 66 71 72
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f 72 67 66
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f 67 72 73
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f 73 68 67
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f 68 73 74
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f 74 69 68
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f 69 74 75
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f 75 70 69
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f 71 76 77
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f 77 72 71
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f 72 77 78
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f 78 73 72
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f 73 78 79
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f 79 74 73
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f 74 79 80
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f 80 75 74
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f 76 46 49
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f 49 77 76
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f 77 49 53
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f 53 78 77
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f 78 53 56
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f 56 79 78
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f 79 56 59
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f 59 80 79
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g frontAndBack
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f 31 34 81
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f 81 61 31
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f 34 36 82
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f 82 81 34
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f 36 1 4
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f 4 82 36
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f 61 81 83
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f 83 66 61
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f 81 82 84
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f 84 83 81
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f 82 4 12
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f 12 84 82
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f 66 83 85
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f 85 71 66
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f 83 84 86
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f 86 85 83
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f 84 12 17
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f 17 86 84
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f 71 85 87
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f 87 76 71
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f 85 86 88
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f 88 87 85
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f 86 17 22
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f 22 88 86
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f 76 87 47
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f 47 46 76
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f 87 88 50
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f 50 47 87
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f 88 22 27
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f 27 50 88
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f 43 65 89
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f 89 44 43
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f 44 89 90
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f 90 45 44
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f 45 90 10
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f 10 9 45
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f 65 70 91
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f 91 89 65
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f 89 91 92
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f 92 90 89
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f 90 92 15
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f 15 10 90
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f 70 75 93
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f 93 91 70
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f 91 93 94
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f 94 92 91
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f 92 94 20
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f 20 15 92
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f 75 80 95
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f 95 93 75
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f 93 95 96
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f 96 94 93
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f 94 96 25
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f 25 20 94
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f 80 59 58
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f 58 95 80
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f 95 58 60
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f 60 96 95
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f 96 60 30
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f 30 25 96
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