[37] | 1 | /* |
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| 2 | |
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| 3 | Brian Curless |
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| 4 | |
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| 5 | Computer Graphics Laboratory |
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| 6 | Stanford University |
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| 7 | |
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| 8 | --------------------------------------------------------------------- |
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| 9 | |
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| 10 | Copyright (1997) The Board of Trustees of the Leland Stanford Junior |
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| 11 | University. Except for commercial resale, lease, license or other |
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| 12 | commercial transactions, permission is hereby given to use, copy, |
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| 13 | modify this software for academic purposes only. No part of this |
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| 14 | software or any derivatives thereof may be used in the production of |
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| 15 | computer models for resale or for use in a commercial |
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| 16 | product. STANFORD MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND |
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| 17 | CONCERNING THIS SOFTWARE. No support is implied or provided. |
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| 18 | |
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| 19 | */ |
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| 20 | |
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| 21 | |
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| 22 | #include "vripGlobals.h" |
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| 23 | #include "configure.h" |
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| 24 | #include "linePersp.h" |
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| 25 | #include "perspective.h" |
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| 26 | |
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| 27 | OrthoShear * |
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| 28 | computeShear(vec3f dir) |
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| 29 | { |
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| 30 | vec3f newDir; |
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| 31 | |
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| 32 | OrthoShear *shear = new OrthoShear; |
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| 33 | |
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| 34 | if (fabs(dir[0]) > fabs(dir[1])) { |
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| 35 | if (fabs(dir[0]) > fabs(dir[2])) |
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| 36 | shear->axis = X_AXIS; |
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| 37 | else |
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| 38 | shear->axis = Z_AXIS; |
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| 39 | } |
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| 40 | else if (fabs(dir[1]) > fabs(dir[2])) |
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| 41 | shear->axis = Y_AXIS; |
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| 42 | else |
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| 43 | shear->axis = Z_AXIS; |
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| 44 | |
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| 45 | |
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| 46 | // Assumes a transpose operation |
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| 47 | |
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| 48 | switch (shear->axis) { |
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| 49 | |
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| 50 | case X_AXIS: |
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| 51 | newDir[0] = dir[2]; |
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| 52 | newDir[1] = dir[1]; |
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| 53 | newDir[2] = dir[0]; |
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| 54 | break; |
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| 55 | |
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| 56 | case Y_AXIS: |
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| 57 | newDir[0] = dir[0]; |
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| 58 | newDir[1] = dir[2]; |
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| 59 | newDir[2] = dir[1]; |
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| 60 | break; |
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| 61 | |
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| 62 | case Z_AXIS: |
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| 63 | newDir[0] = dir[0]; |
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| 64 | newDir[1] = dir[1]; |
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| 65 | newDir[2] = dir[2]; |
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| 66 | break; |
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| 67 | } |
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| 68 | |
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| 69 | shear->flip = newDir[2] > 0; |
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| 70 | |
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| 71 | shear->sx = newDir[0]/fabs(newDir[2]); |
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| 72 | shear->sy = newDir[1]/fabs(newDir[2]); |
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| 73 | |
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| 74 | if (Verbose) |
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| 75 | printf("Shear: sx = %f sy = %f axis = %d flip = %d\n", |
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| 76 | shear->sx, shear->sy, shear->axis, shear->flip); |
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| 77 | |
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| 78 | return shear; |
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| 79 | } |
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| 80 | |
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| 81 | |
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| 82 | void |
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| 83 | configureGrid(OccGrid *grid, OrthoShear *shear) |
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| 84 | { |
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| 85 | // Unflip the grid, if necessary |
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| 86 | if (grid->flip) { |
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| 87 | grid->flip = FALSE; |
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| 88 | grid->origin[2] = -grid->origin[2]; |
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| 89 | } |
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| 90 | |
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| 91 | // Transpose to the desired axis |
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| 92 | if (shear->axis != grid->axis) { |
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| 93 | if (grid->axis == X_AXIS) |
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| 94 | grid->transposeXZ(); |
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| 95 | else if (grid->axis == Y_AXIS) |
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| 96 | grid->transposeYZ(); |
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| 97 | |
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| 98 | if (shear->axis == X_AXIS) |
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| 99 | grid->transposeXZ(); |
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| 100 | else if (shear->axis == Y_AXIS) |
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| 101 | grid->transposeYZ(); |
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| 102 | |
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| 103 | grid->axis = shear->axis; |
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| 104 | } |
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| 105 | |
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| 106 | // Flip the grid, if necessary |
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| 107 | grid->flip = shear->flip; |
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| 108 | grid->origin[2] = grid->flip ? -grid->origin[2] : grid->origin[2]; |
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| 109 | |
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| 110 | float zinc = grid->flip ? -grid->resolution : grid->resolution; |
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| 111 | float z = grid->origin[2]; |
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| 112 | for (int i = 0; i < grid->zdim; i++, z+= zinc) { |
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| 113 | grid->sliceOrigins[i][0] = grid->origin[0] + shear->sx * z; |
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| 114 | grid->sliceOrigins[i][1] = grid->origin[1] + shear->sy * z; |
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| 115 | grid->sliceOrigins[i][2] = z; |
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| 116 | } |
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| 117 | } |
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| 118 | |
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| 119 | |
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| 120 | void |
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| 121 | configureGrid(OccGridRLE **pInGrid, OccGridRLE **pOutGrid, OrthoShear *shear) |
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| 122 | { |
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| 123 | OccGridRLE *temp, *inGrid, *outGrid; |
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| 124 | |
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| 125 | inGrid = *pInGrid; |
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| 126 | outGrid = *pOutGrid; |
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| 127 | |
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| 128 | // Unflip the grid, if necessary |
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| 129 | if (inGrid->flip) { |
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| 130 | inGrid->flip = FALSE; |
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| 131 | inGrid->origin[2] = -inGrid->origin[2]; |
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| 132 | } |
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| 133 | |
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| 134 | outGrid->copyParams(inGrid); |
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| 135 | |
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| 136 | // Transpose to the desired axis |
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| 137 | if (shear->axis != inGrid->axis) { |
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| 138 | if (inGrid->axis == X_AXIS) { |
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| 139 | inGrid->transposeXZ(outGrid); |
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| 140 | SWAP(inGrid, outGrid, temp); |
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| 141 | } |
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| 142 | else if (inGrid->axis == Y_AXIS) { |
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| 143 | inGrid->transposeYZ(outGrid); |
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| 144 | SWAP(inGrid, outGrid, temp); |
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| 145 | } |
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| 146 | |
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| 147 | if (shear->axis == X_AXIS) { |
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| 148 | inGrid->transposeXZ(outGrid); |
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| 149 | } |
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| 150 | else if (shear->axis == Y_AXIS) { |
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| 151 | inGrid->transposeYZ(outGrid); |
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| 152 | } |
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| 153 | else { |
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| 154 | SWAP(inGrid, outGrid, temp); |
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| 155 | } |
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| 156 | |
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| 157 | outGrid->axis = shear->axis; |
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| 158 | } |
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| 159 | else { |
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| 160 | SWAP(inGrid, outGrid, temp); |
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| 161 | } |
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| 162 | |
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| 163 | // Flip the grid, if necessary |
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| 164 | outGrid->flip = shear->flip; |
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| 165 | outGrid->origin[2] = outGrid->flip ? -outGrid->origin[2] : outGrid->origin[2]; |
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| 166 | |
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| 167 | float zinc = outGrid->flip ? -outGrid->resolution : outGrid->resolution; |
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| 168 | |
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| 169 | float z = outGrid->origin[2]; |
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| 170 | |
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| 171 | for (int i = 0; i < outGrid->zdim; i++, z+= zinc) { |
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| 172 | outGrid->sliceOrigins[i][0] = outGrid->origin[0] + shear->sx * z; |
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| 173 | outGrid->sliceOrigins[i][1] = outGrid->origin[1] + shear->sy * z; |
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| 174 | outGrid->sliceOrigins[i][2] = z; |
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| 175 | |
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| 176 | inGrid->sliceOrigins[i][0] = inGrid->origin[0] + shear->sx * z; |
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| 177 | inGrid->sliceOrigins[i][1] = inGrid->origin[1] + shear->sy * z; |
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| 178 | inGrid->sliceOrigins[i][2] = z; |
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| 179 | } |
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| 180 | |
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| 181 | inGrid->copyParams(outGrid); |
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| 182 | |
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| 183 | *pInGrid = inGrid; |
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| 184 | *pOutGrid = outGrid; |
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| 185 | } |
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| 186 | |
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| 187 | |
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| 188 | void |
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| 189 | configureGrid(OccGridNormRLE **pInGrid, OccGridNormRLE **pOutGrid, |
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| 190 | OrthoShear *shear) |
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| 191 | { |
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| 192 | OccGridNormRLE *temp, *inGrid, *outGrid; |
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| 193 | |
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| 194 | inGrid = *pInGrid; |
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| 195 | outGrid = *pOutGrid; |
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| 196 | |
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| 197 | outGrid->copyParams(inGrid); |
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| 198 | |
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| 199 | // Transpose to the desired axis |
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| 200 | if (shear->axis != inGrid->axis) { |
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| 201 | if (inGrid->axis == X_AXIS) { |
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| 202 | inGrid->transposeXZ(outGrid); |
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| 203 | SWAP(inGrid, outGrid, temp); |
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| 204 | } |
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| 205 | else if (inGrid->axis == Y_AXIS) { |
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| 206 | inGrid->transposeYZ(outGrid); |
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| 207 | SWAP(inGrid, outGrid, temp); |
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| 208 | } |
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| 209 | |
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| 210 | if (shear->axis == X_AXIS) { |
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| 211 | inGrid->transposeXZ(outGrid); |
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| 212 | } |
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| 213 | else if (shear->axis == Y_AXIS) { |
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| 214 | inGrid->transposeYZ(outGrid); |
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| 215 | } |
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| 216 | else { |
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| 217 | SWAP(inGrid, outGrid, temp); |
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| 218 | } |
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| 219 | |
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| 220 | outGrid->axis = shear->axis; |
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| 221 | } |
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| 222 | else { |
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| 223 | SWAP(inGrid, outGrid, temp); |
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| 224 | } |
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| 225 | |
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| 226 | // Flip the grid, if necessary |
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| 227 | outGrid->flip = shear->flip; |
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| 228 | outGrid->origin[2] = outGrid->flip ? -outGrid->origin[2] : outGrid->origin[2]; |
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| 229 | |
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| 230 | float zinc = outGrid->flip ? -outGrid->resolution : outGrid->resolution; |
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| 231 | |
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| 232 | float z = outGrid->origin[2]; |
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| 233 | |
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| 234 | for (int i = 0; i < outGrid->zdim; i++, z+= zinc) { |
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| 235 | outGrid->sliceOrigins[i][0] = outGrid->origin[0] + shear->sx * z; |
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| 236 | outGrid->sliceOrigins[i][1] = outGrid->origin[1] + shear->sy * z; |
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| 237 | outGrid->sliceOrigins[i][2] = z; |
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| 238 | } |
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| 239 | |
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| 240 | inGrid->copyParams(outGrid); |
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| 241 | |
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| 242 | *pInGrid = inGrid; |
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| 243 | *pOutGrid = outGrid; |
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| 244 | } |
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| 245 | |
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| 246 | |
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| 247 | void |
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| 248 | configureGridLinePersp(OccGridRLE **pInGrid, OccGridRLE **pOutGrid, |
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| 249 | OrthoShear *shear) |
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| 250 | { |
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| 251 | OccGridRLE *temp, *inGrid, *outGrid; |
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| 252 | |
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| 253 | inGrid = *pInGrid; |
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| 254 | outGrid = *pOutGrid; |
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| 255 | |
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| 256 | // Unflip the grid, if necessary |
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| 257 | if (inGrid->flip) { |
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| 258 | inGrid->flip = FALSE; |
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| 259 | inGrid->origin[2] = -inGrid->origin[2]; |
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| 260 | } |
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| 261 | |
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| 262 | outGrid->copyParams(inGrid); |
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| 263 | |
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| 264 | // Transpose to the desired axis |
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| 265 | if (shear->axis != inGrid->axis) { |
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| 266 | if (inGrid->axis == X_AXIS) { |
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| 267 | inGrid->transposeXZ(outGrid); |
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| 268 | SWAP(inGrid, outGrid, temp); |
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| 269 | } |
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| 270 | else if (inGrid->axis == Y_AXIS) { |
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| 271 | inGrid->transposeYZ(outGrid); |
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| 272 | SWAP(inGrid, outGrid, temp); |
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| 273 | } |
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| 274 | |
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| 275 | if (shear->axis == X_AXIS) { |
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| 276 | inGrid->transposeXZ(outGrid); |
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| 277 | } |
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| 278 | else if (shear->axis == Y_AXIS) { |
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| 279 | inGrid->transposeYZ(outGrid); |
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| 280 | } |
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| 281 | else { |
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| 282 | SWAP(inGrid, outGrid, temp); |
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| 283 | } |
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| 284 | |
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| 285 | outGrid->axis = shear->axis; |
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| 286 | } |
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| 287 | else { |
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| 288 | SWAP(inGrid, outGrid, temp); |
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| 289 | } |
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| 290 | |
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| 291 | // Flip the grid, if necessary |
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| 292 | outGrid->flip = shear->flip; |
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| 293 | outGrid->origin[2] = outGrid->flip ? |
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| 294 | -outGrid->origin[2] : outGrid->origin[2]; |
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| 295 | |
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| 296 | float zinc = outGrid->flip ? -outGrid->resolution : outGrid->resolution; |
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| 297 | float z = outGrid->origin[2]; |
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| 298 | for (int i = 0; i < outGrid->zdim; i++, z+= zinc) { |
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| 299 | outGrid->sliceOrigins[i][0] = outGrid->origin[0]; |
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| 300 | outGrid->sliceOrigins[i][1] = outGrid->origin[1]; |
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| 301 | outGrid->sliceOrigins[i][2] = z; |
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| 302 | } |
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| 303 | |
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| 304 | inGrid->copyParams(outGrid); |
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| 305 | |
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| 306 | *pInGrid = inGrid; |
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| 307 | *pOutGrid = outGrid; |
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| 308 | } |
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| 309 | |
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| 310 | |
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| 311 | void |
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| 312 | configureGridPersp(OccGridRLE **pInGrid, OccGridRLE **pOutGrid, |
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| 313 | OrthoShear *shear) |
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| 314 | { |
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| 315 | OccGridRLE *temp, *inGrid, *outGrid; |
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| 316 | |
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| 317 | inGrid = *pInGrid; |
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| 318 | outGrid = *pOutGrid; |
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| 319 | |
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| 320 | // Unflip the grid, if necessary |
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| 321 | if (inGrid->flip) { |
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| 322 | inGrid->flip = FALSE; |
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| 323 | inGrid->origin[2] = -inGrid->origin[2]; |
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| 324 | } |
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| 325 | |
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| 326 | outGrid->copyParams(inGrid); |
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| 327 | |
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| 328 | // Transpose to the desired axis |
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| 329 | if (shear->axis != inGrid->axis) { |
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| 330 | if (inGrid->axis == X_AXIS) { |
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| 331 | inGrid->transposeXZ(outGrid); |
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| 332 | SWAP(inGrid, outGrid, temp); |
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| 333 | } |
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| 334 | else if (inGrid->axis == Y_AXIS) { |
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| 335 | inGrid->transposeYZ(outGrid); |
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| 336 | SWAP(inGrid, outGrid, temp); |
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| 337 | } |
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| 338 | |
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| 339 | if (shear->axis == X_AXIS) { |
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| 340 | inGrid->transposeXZ(outGrid); |
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| 341 | } |
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| 342 | else if (shear->axis == Y_AXIS) { |
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| 343 | inGrid->transposeYZ(outGrid); |
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| 344 | } |
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| 345 | else { |
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| 346 | SWAP(inGrid, outGrid, temp); |
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| 347 | } |
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| 348 | |
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| 349 | outGrid->axis = shear->axis; |
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| 350 | } |
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| 351 | else { |
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| 352 | SWAP(inGrid, outGrid, temp); |
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| 353 | } |
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| 354 | |
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| 355 | // Flip the grid, if necessary |
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| 356 | outGrid->flip = shear->flip; |
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| 357 | outGrid->origin[2] = outGrid->flip ? |
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| 358 | -outGrid->origin[2] : outGrid->origin[2]; |
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| 359 | |
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| 360 | float zinc = outGrid->flip ? -outGrid->resolution : outGrid->resolution; |
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| 361 | float z = outGrid->origin[2]; |
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| 362 | for (int i = 0; i < outGrid->zdim; i++, z+= zinc) { |
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| 363 | outGrid->sliceOrigins[i][0] = outGrid->origin[0]; |
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| 364 | outGrid->sliceOrigins[i][1] = outGrid->origin[1]; |
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| 365 | outGrid->sliceOrigins[i][2] = z; |
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| 366 | } |
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| 367 | |
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| 368 | inGrid->copyParams(outGrid); |
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| 369 | |
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| 370 | *pInGrid = inGrid; |
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| 371 | *pOutGrid = outGrid; |
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| 372 | } |
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| 373 | |
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| 374 | |
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| 375 | BBox3f * |
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| 376 | getBBox(OccGrid *grid) |
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| 377 | { |
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| 378 | float d1, d2, d3, d4, res; |
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| 379 | |
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| 380 | BBox3f *bbox = new BBox3f; |
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| 381 | |
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| 382 | res = grid->resolution; |
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| 383 | |
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| 384 | d1 = grid->sliceOrigins[0][0]; |
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| 385 | d2 = grid->sliceOrigins[0][0] + grid->xdim*res; |
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| 386 | d3 = grid->sliceOrigins[grid->zdim-1][0]; |
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| 387 | d4 = grid->sliceOrigins[grid->zdim-1][0] + grid->xdim*res; |
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| 388 | bbox->fll.x = MIN(MIN(d1,d2),MIN(d3,d4)); |
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| 389 | bbox->nur.x = MAX(MAX(d1,d2),MAX(d3,d4)); |
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| 390 | |
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| 391 | d1 = grid->sliceOrigins[0][1]; |
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| 392 | d2 = grid->sliceOrigins[0][1] + grid->ydim*res; |
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| 393 | d3 = grid->sliceOrigins[grid->zdim-1][1]; |
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| 394 | d4 = grid->sliceOrigins[grid->zdim-1][1] + grid->ydim*res; |
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| 395 | bbox->fll.y = MIN(MIN(d1,d2),MIN(d3,d4)); |
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| 396 | bbox->nur.y = MAX(MAX(d1,d2),MAX(d3,d4)); |
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| 397 | |
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| 398 | d1 = grid->sliceOrigins[0][2]; |
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| 399 | d2 = grid->sliceOrigins[grid->zdim-1][2]; |
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| 400 | bbox->fll.z = MIN(d1,d2); |
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| 401 | bbox->nur.z = MAX(d1,d2); |
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| 402 | |
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| 403 | return bbox; |
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| 404 | } |
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| 405 | |
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| 406 | |
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| 407 | BBox3f * |
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| 408 | getBBox(OccGridRLE *grid) |
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| 409 | { |
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| 410 | float d1, d2, d3, d4, res; |
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| 411 | |
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| 412 | BBox3f *bbox = new BBox3f; |
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| 413 | |
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| 414 | res = grid->resolution; |
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| 415 | |
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| 416 | d1 = grid->sliceOrigins[0][0]; |
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| 417 | d2 = grid->sliceOrigins[0][0] + grid->xdim*res; |
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| 418 | d3 = grid->sliceOrigins[grid->zdim-1][0]; |
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| 419 | d4 = grid->sliceOrigins[grid->zdim-1][0] + grid->xdim*res; |
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| 420 | bbox->fll.x = MIN(MIN(d1,d2),MIN(d3,d4)); |
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| 421 | bbox->nur.x = MAX(MAX(d1,d2),MAX(d3,d4)); |
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| 422 | |
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| 423 | d1 = grid->sliceOrigins[0][1]; |
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| 424 | d2 = grid->sliceOrigins[0][1] + grid->ydim*res; |
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| 425 | d3 = grid->sliceOrigins[grid->zdim-1][1]; |
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| 426 | d4 = grid->sliceOrigins[grid->zdim-1][1] + grid->ydim*res; |
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| 427 | bbox->fll.y = MIN(MIN(d1,d2),MIN(d3,d4)); |
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| 428 | bbox->nur.y = MAX(MAX(d1,d2),MAX(d3,d4)); |
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| 429 | |
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| 430 | d1 = grid->sliceOrigins[0][2]; |
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| 431 | d2 = grid->sliceOrigins[grid->zdim-1][2]; |
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| 432 | bbox->fll.z = MIN(d1,d2); |
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| 433 | bbox->nur.z = MAX(d1,d2); |
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| 434 | |
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| 435 | return bbox; |
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| 436 | } |
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| 437 | |
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| 438 | |
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| 439 | BBox3f * |
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| 440 | getBBox(OccGridNormRLE *grid) |
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| 441 | { |
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| 442 | float d1, d2, d3, d4, res; |
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| 443 | |
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| 444 | BBox3f *bbox = new BBox3f; |
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| 445 | |
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| 446 | res = grid->resolution; |
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| 447 | |
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| 448 | d1 = grid->sliceOrigins[0][0]; |
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| 449 | d2 = grid->sliceOrigins[0][0] + grid->xdim*res; |
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| 450 | d3 = grid->sliceOrigins[grid->zdim-1][0]; |
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| 451 | d4 = grid->sliceOrigins[grid->zdim-1][0] + grid->xdim*res; |
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| 452 | bbox->fll.x = MIN(MIN(d1,d2),MIN(d3,d4)); |
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| 453 | bbox->nur.x = MAX(MAX(d1,d2),MAX(d3,d4)); |
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| 454 | |
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| 455 | d1 = grid->sliceOrigins[0][1]; |
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| 456 | d2 = grid->sliceOrigins[0][1] + grid->xdim*res; |
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| 457 | d3 = grid->sliceOrigins[grid->zdim-1][1]; |
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| 458 | d4 = grid->sliceOrigins[grid->zdim-1][1] + grid->ydim*res; |
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| 459 | bbox->fll.y = MIN(MIN(d1,d2),MIN(d3,d4)); |
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| 460 | bbox->nur.y = MAX(MAX(d1,d2),MAX(d3,d4)); |
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| 461 | |
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| 462 | d1 = grid->sliceOrigins[0][2]; |
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| 463 | d2 = grid->sliceOrigins[grid->zdim-1][2]; |
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| 464 | bbox->fll.z = MIN(d1,d2); |
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| 465 | bbox->nur.z = MAX(d1,d2); |
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| 466 | |
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| 467 | return bbox; |
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| 468 | } |
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| 469 | |
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| 470 | |
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| 471 | BBox3f * |
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| 472 | getBBoxLinePersp(OccGridRLE *grid, int *numLines) |
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| 473 | { |
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| 474 | Vec3f v, v1, v2, v3, v4, v5, v6, v7, v8; |
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| 475 | float res, dely; |
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| 476 | |
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| 477 | BBox3f *bbox = new BBox3f; |
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| 478 | |
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| 479 | res = grid->resolution; |
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| 480 | |
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| 481 | v.setValue(grid->sliceOrigins[0][0], |
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| 482 | grid->sliceOrigins[0][1], |
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| 483 | grid->sliceOrigins[0][2]); |
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| 484 | applyLinePersp(v, v1); |
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| 485 | |
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| 486 | v.setValue(grid->sliceOrigins[0][0] + grid->xdim*res, |
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| 487 | grid->sliceOrigins[0][1], |
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| 488 | grid->sliceOrigins[0][2]); |
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| 489 | applyLinePersp(v, v2); |
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| 490 | |
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| 491 | dely = fabs(v1.y - v2.y); |
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| 492 | |
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| 493 | v.setValue(grid->sliceOrigins[0][0], |
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| 494 | grid->sliceOrigins[0][1] + grid->ydim*res, |
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| 495 | grid->sliceOrigins[0][2]); |
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| 496 | applyLinePersp(v, v3); |
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| 497 | |
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| 498 | v.setValue(grid->sliceOrigins[0][0] + grid->xdim*res, |
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| 499 | grid->sliceOrigins[0][1] + grid->ydim*res, |
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| 500 | grid->sliceOrigins[0][2]); |
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| 501 | applyLinePersp(v, v4); |
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| 502 | |
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| 503 | dely = MAX(dely, fabs(v3.y - v4.y)); |
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| 504 | |
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| 505 | v.setValue(grid->sliceOrigins[0][0], |
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| 506 | grid->sliceOrigins[0][1], |
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| 507 | grid->sliceOrigins[grid->zdim-1][2]); |
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| 508 | applyLinePersp(v, v5); |
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| 509 | |
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| 510 | v.setValue(grid->sliceOrigins[0][0] + grid->xdim*res, |
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| 511 | grid->sliceOrigins[0][1], |
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| 512 | grid->sliceOrigins[grid->zdim-1][2]); |
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| 513 | applyLinePersp(v, v6); |
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| 514 | |
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| 515 | dely = MAX(dely, fabs(v5.y - v6.y)); |
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| 516 | |
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| 517 | v.setValue(grid->sliceOrigins[0][0], |
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| 518 | grid->sliceOrigins[0][1] + grid->ydim*res, |
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| 519 | grid->sliceOrigins[grid->zdim-1][2]); |
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| 520 | applyLinePersp(v, v7); |
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| 521 | |
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| 522 | v.setValue(grid->sliceOrigins[0][0] + grid->xdim*res, |
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| 523 | grid->sliceOrigins[0][1] + grid->ydim*res, |
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| 524 | grid->sliceOrigins[grid->zdim-1][2]); |
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| 525 | applyLinePersp(v, v8); |
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| 526 | |
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| 527 | dely = MAX(dely, fabs(v7.y - v8.y)); |
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| 528 | |
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| 529 | |
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| 530 | bbox->fll.x = MIN(MIN(MIN(v1.x,v2.x),MIN(v3.x,v4.x)), |
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| 531 | MIN(MIN(v5.x,v6.x),MIN(v7.x,v8.x))); |
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| 532 | bbox->nur.x = MAX(MAX(MAX(v1.x,v2.x),MAX(v3.x,v4.x)), |
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| 533 | MAX(MAX(v5.x,v6.x),MAX(v7.x,v8.x))); |
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| 534 | |
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| 535 | bbox->fll.y = MIN(MIN(MIN(v1.y,v2.y),MIN(v3.y,v4.y)), |
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| 536 | MIN(MIN(v5.y,v6.y),MIN(v7.y,v8.y))); |
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| 537 | bbox->nur.y = MAX(MAX(MAX(v1.y,v2.y),MAX(v3.y,v4.y)), |
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| 538 | MAX(MAX(v5.y,v6.y),MAX(v7.y,v8.y))); |
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| 539 | |
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| 540 | bbox->fll.z = MIN(MIN(MIN(v1.z,v2.z),MIN(v3.z,v4.z)), |
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| 541 | MIN(MIN(v5.z,v6.z),MIN(v7.z,v8.z))); |
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| 542 | bbox->nur.z = MAX(MAX(MAX(v1.z,v2.z),MAX(v3.z,v4.z)), |
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| 543 | MAX(MAX(v5.z,v6.z),MAX(v7.z,v8.z))); |
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| 544 | |
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| 545 | |
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| 546 | |
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| 547 | *numLines = int(ceil(dely/res))+2; |
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| 548 | |
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| 549 | #if 0 |
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| 550 | // Shouldn't need to multiply by 2 |
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| 551 | *numLines = 2*int(ceil(dely/res))+2; |
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| 552 | if (Warn) |
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| 553 | printf("Using conservative line width in depth map.\n"); |
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| 554 | #endif |
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| 555 | |
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| 556 | if (Verbose) { |
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| 557 | printf("BBox: (%f, %f, %f) -> (%f, %f, %f)\n", |
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| 558 | bbox->fll.x, bbox->fll.y, bbox->fll.z, |
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| 559 | bbox->nur.x, bbox->nur.y, bbox->nur.z); |
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| 560 | } |
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| 561 | |
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| 562 | return bbox; |
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| 563 | } |
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| 564 | |
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| 565 | |
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| 566 | BBox3f * |
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| 567 | getBBoxPersp(OccGridRLE *grid, int *numLines) |
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| 568 | { |
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| 569 | Vec3f v, v1, v2, v3, v4, v5, v6, v7, v8; |
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| 570 | float res, dely; |
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| 571 | |
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| 572 | BBox3f *bbox = new BBox3f; |
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| 573 | |
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| 574 | res = grid->resolution; |
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| 575 | |
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| 576 | v.setValue(grid->sliceOrigins[0][0], |
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| 577 | grid->sliceOrigins[0][1], |
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| 578 | grid->sliceOrigins[0][2]); |
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| 579 | applyPersp(v, v1); |
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| 580 | |
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| 581 | v.setValue(grid->sliceOrigins[0][0] + grid->xdim*res, |
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| 582 | grid->sliceOrigins[0][1], |
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| 583 | grid->sliceOrigins[0][2]); |
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| 584 | applyPersp(v, v2); |
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| 585 | |
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| 586 | dely = fabs(v1.y - v2.y); |
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| 587 | |
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| 588 | v.setValue(grid->sliceOrigins[0][0], |
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| 589 | grid->sliceOrigins[0][1] + grid->ydim*res, |
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| 590 | grid->sliceOrigins[0][2]); |
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| 591 | applyPersp(v, v3); |
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| 592 | |
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| 593 | v.setValue(grid->sliceOrigins[0][0] + grid->xdim*res, |
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| 594 | grid->sliceOrigins[0][1] + grid->ydim*res, |
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| 595 | grid->sliceOrigins[0][2]); |
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| 596 | applyPersp(v, v4); |
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| 597 | |
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| 598 | dely = MAX(dely, fabs(v3.y - v4.y)); |
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| 599 | |
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| 600 | v.setValue(grid->sliceOrigins[0][0], |
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| 601 | grid->sliceOrigins[0][1], |
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| 602 | grid->sliceOrigins[grid->zdim-1][2]); |
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| 603 | applyPersp(v, v5); |
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| 604 | |
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| 605 | v.setValue(grid->sliceOrigins[0][0] + grid->xdim*res, |
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| 606 | grid->sliceOrigins[0][1], |
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| 607 | grid->sliceOrigins[grid->zdim-1][2]); |
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| 608 | applyPersp(v, v6); |
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| 609 | |
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| 610 | dely = MAX(dely, fabs(v5.y - v6.y)); |
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| 611 | |
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| 612 | v.setValue(grid->sliceOrigins[0][0], |
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| 613 | grid->sliceOrigins[0][1] + grid->ydim*res, |
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| 614 | grid->sliceOrigins[grid->zdim-1][2]); |
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| 615 | applyPersp(v, v7); |
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| 616 | |
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| 617 | v.setValue(grid->sliceOrigins[0][0] + grid->xdim*res, |
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| 618 | grid->sliceOrigins[0][1] + grid->ydim*res, |
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| 619 | grid->sliceOrigins[grid->zdim-1][2]); |
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| 620 | applyPersp(v, v8); |
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| 621 | |
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| 622 | dely = MAX(dely, fabs(v7.y - v8.y)); |
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| 623 | |
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| 624 | |
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| 625 | bbox->fll.x = MIN(MIN(MIN(v1.x,v2.x),MIN(v3.x,v4.x)), |
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| 626 | MIN(MIN(v5.x,v6.x),MIN(v7.x,v8.x))); |
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| 627 | bbox->nur.x = MAX(MAX(MAX(v1.x,v2.x),MAX(v3.x,v4.x)), |
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| 628 | MAX(MAX(v5.x,v6.x),MAX(v7.x,v8.x))); |
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| 629 | |
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| 630 | bbox->fll.y = MIN(MIN(MIN(v1.y,v2.y),MIN(v3.y,v4.y)), |
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| 631 | MIN(MIN(v5.y,v6.y),MIN(v7.y,v8.y))); |
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| 632 | bbox->nur.y = MAX(MAX(MAX(v1.y,v2.y),MAX(v3.y,v4.y)), |
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| 633 | MAX(MAX(v5.y,v6.y),MAX(v7.y,v8.y))); |
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| 634 | |
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| 635 | bbox->fll.z = MIN(MIN(MIN(v1.z,v2.z),MIN(v3.z,v4.z)), |
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| 636 | MIN(MIN(v5.z,v6.z),MIN(v7.z,v8.z))); |
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| 637 | bbox->nur.z = MAX(MAX(MAX(v1.z,v2.z),MAX(v3.z,v4.z)), |
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| 638 | MAX(MAX(v5.z,v6.z),MAX(v7.z,v8.z))); |
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| 639 | |
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| 640 | |
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| 641 | |
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| 642 | *numLines = int(ceil(dely/res))+2; |
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| 643 | |
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| 644 | #if 0 |
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| 645 | // Shouldn't need to multiply by 2 |
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| 646 | *numLines = 2*int(ceil(dely/res))+2; |
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| 647 | if (Warn) |
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| 648 | printf("Using conservative line width in depth map.\n"); |
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| 649 | #endif |
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| 650 | |
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| 651 | if (Verbose) { |
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| 652 | printf("BBox: (%f, %f, %f) -> (%f, %f, %f)\n", |
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| 653 | bbox->fll.x, bbox->fll.y, bbox->fll.z, |
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| 654 | bbox->nur.x, bbox->nur.y, bbox->nur.z); |
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| 655 | } |
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| 656 | |
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| 657 | return bbox; |
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| 658 | } |
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| 659 | |
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