Hello,
> I am seeing some odd behavior with AutoTransform. The following .osg
> file creates an AutoTransform with a grid of lines attached. The
> lines are each separated by one unit of space. When I look at the
> file in osgviewer, I see that this spacing is not kept. It looks like
> the auto-scale is not exact. The imprecision seems to vary with
> projection, viewport size, and on my windows dual-screen setup it
> varies with monitor! If I make the window very wide and short, the
> shape is scaled so much as to actually shrink significantly in screen
> space.
>
> Am I using the AutoTransform incorrectly? Am I expecting this to do
> more than was intended?
>
> Thanks,
> Jonathon Marjamaa
>
> AutoTransform {
> UniqueID AutoTransform_0
> nodeMask 0xffffffff
> cullingActive TRUE
> referenceFrame RELATIVE
> position 0 0 0
> rotation 0 0 0 1
> scale 1 1 1
> pivotPoint 0 0 0
> autoUpdateEyeMovementTolerance 0
> autoRotateMode ROTATE_TO_SCREEN
> autoScaleToScreen TRUE
> num_children 2
> Geode {
> UniqueID Geode_1
> nodeMask 0xffffffff
> cullingActive TRUE
> num_drawables 2
> Geometry {
> useDisplayList TRUE
> useVertexBufferObjects FALSE
> VertexArray UniqueID Vec3Array_3 Vec3Array 200
> {
> 0 0 0
> 0 150 0
> 0 0 0
> 150 0 0
> 2 0 0
> 2 150 0
> 0 2 0
> 150 2 0
> 4 0 0
> 4 150 0
> 0 4 0
> 150 4 0
> 6 0 0
> 6 150 0
> 0 6 0
> 150 6 0
> 8 0 0
> 8 150 0
> 0 8 0
> 150 8 0
> 10 0 0
> 10 150 0
> 0 10 0
> 150 10 0
> 12 0 0
> 12 150 0
> 0 12 0
> 150 12 0
> 14 0 0
> 14 150 0
> 0 14 0
> 150 14 0
> 16 0 0
> 16 150 0
> 0 16 0
> 150 16 0
> 18 0 0
> 18 150 0
> 0 18 0
> 150 18 0
> 20 0 0
> 20 150 0
> 0 20 0
> 150 20 0
> 22 0 0
> 22 150 0
> 0 22 0
> 150 22 0
> 24 0 0
> 24 150 0
> 0 24 0
> 150 24 0
> 26 0 0
> 26 150 0
> 0 26 0
> 150 26 0
> 28 0 0
> 28 150 0
> 0 28 0
> 150 28 0
> 30 0 0
> 30 150 0
> 0 30 0
> 150 30 0
> 32 0 0
> 32 150 0
> 0 32 0
> 150 32 0
> 34 0 0
> 34 150 0
> 0 34 0
> 150 34 0
> 36 0 0
> 36 150 0
> 0 36 0
> 150 36 0
> 38 0 0
> 38 150 0
> 0 38 0
> 150 38 0
> 40 0 0
> 40 150 0
> 0 40 0
> 150 40 0
> 42 0 0
> 42 150 0
> 0 42 0
> 150 42 0
> 44 0 0
> 44 150 0
> 0 44 0
> 150 44 0
> 46 0 0
> 46 150 0
> 0 46 0
> 150 46 0
> 48 0 0
> 48 150 0
> 0 48 0
> 150 48 0
> 50 0 0
> 50 150 0
> 0 50 0
> 150 50 0
> 52 0 0
> 52 150 0
> 0 52 0
> 150 52 0
> 54 0 0
> 54 150 0
> 0 54 0
> 150 54 0
> 56 0 0
> 56 150 0
> 0 56 0
> 150 56 0
> 58 0 0
> 58 150 0
> 0 58 0
> 150 58 0
> 60 0 0
> 60 150 0
> 0 60 0
> 150 60 0
> 62 0 0
> 62 150 0
> 0 62 0
> 150 62 0
> 64 0 0
> 64 150 0
> 0 64 0
> 150 64 0
> 66 0 0
> 66 150 0
> 0 66 0
> 150 66 0
> 68 0 0
> 68 150 0
> 0 68 0
> 150 68 0
> 70 0 0
> 70 150 0
> 0 70 0
> 150 70 0
> 72 0 0
> 72 150 0
> 0 72 0
> 150 72 0
> 74 0 0
> 74 150 0
> 0 74 0
> 150 74 0
> 76 0 0
> 76 150 0
> 0 76 0
> 150 76 0
> 78 0 0
> 78 150 0
> 0 78 0
> 150 78 0
> 80 0 0
> 80 150 0
> 0 80 0
> 150 80 0
> 82 0 0
> 82 150 0
> 0 82 0
> 150 82 0
> 84 0 0
> 84 150 0
> 0 84 0
> 150 84 0
> 86 0 0
> 86 150 0
> 0 86 0
> 150 86 0
> 88 0 0
> 88 150 0
> 0 88 0
> 150 88 0
> 90 0 0
> 90 150 0
> 0 90 0
> 150 90 0
> 92 0 0
> 92 150 0
> 0 92 0
> 150 92 0
> 94 0 0
> 94 150 0
> 0 94 0
> 150 94 0
> 96 0 0
> 96 150 0
> 0 96 0
> 150 96 0
> 98 0 0
> 98 150 0
> 0 98 0
> 150 98 0
> 100 0 0
> 100 150 0
> 0 100 0
> 150 100 0
> }
> VertexIndices UniqueID UShortArray_4 UShortArray 200
> {
> 0 1 2 3 4 5 6 7 8 9
> 10 11 12 13 14 15 16 17 18 19
> 20 21 22 23 24 25 26 27 28 29
> 30 31 32 33 34 35 36 37 38 39
> 40 41 42 43 44 45 46 47 48 49
> 50 51 52 53 54 55 56 57 58 59
> 60 61 62 63 64 65 66 67 68 69
> 70 71 72 73 74 75 76 77 78 79
> 80 81 82 83 84 85 86 87 88 89
> 90 91 92 93 94 95 96 97 98 99
> 100 101 102 103 104 105 106 107 108 109
> 110 111 112 113 114 115 116 117 118 119
> 120 121 122 123 124 125 126 127 128 129
> 130 131 132 133 134 135 136 137 138 139
> 140 141 142 143 144 145 146 147 148 149
> 150 151 152 153 154 155 156 157 158 159
> 160 161 162 163 164 165 166 167 168 169
> 170 171 172 173 174 175 176 177 178 179
> 180 181 182 183 184 185 186 187 188 189
> 190 191 192 193 194 195 196 197 198 199
> }
> ColorBinding OVERALL
> ColorArray Vec4Array 1
> {
> 1 1 1 0.85
> }
> }
> Geometry {
> useDisplayList TRUE
> useVertexBufferObjects FALSE
> PrimitiveSets 1
> {
> DrawArrays LINES 0 200
> }
> VertexArray Use Vec3Array_3
> VertexIndices Use UShortArray_4
> ColorBinding OVERALL
> ColorArray Vec4Array 1
> {
> 1 0 0 1
> }
> }
> }
> }
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