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 <limits.h> |
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23 | #include <stdio.h> |
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24 | |
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25 | #include "OccGrid.h" |
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26 | //#include "levden.h" |
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27 | |
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28 | OccGrid::OccGrid() |
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29 | { |
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30 | this->xdim = this->ydim = this->zdim = 0; |
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31 | this->elems = NULL; |
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32 | this->axis = Z_AXIS; |
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33 | this->flip = FALSE; |
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34 | this->origin[0] = 0; |
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35 | this->origin[1] = 0; |
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36 | this->origin[2] = 0; |
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37 | } |
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38 | |
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39 | |
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40 | OccGrid::OccGrid(int xd, int yd, int zd) |
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41 | { |
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42 | int size1, size2, size3, sliceSize; |
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43 | |
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44 | this->xdim = xd; |
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45 | this->ydim = yd; |
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46 | this->zdim = zd; |
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47 | this->elems = new OccElement[xd*yd*zd]; |
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48 | if (this->elems == NULL) { |
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49 | this->xdim = 0; |
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50 | this->ydim = 0; |
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51 | this->zdim = 0; |
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52 | printf("OccGrid::new - insufficient memory.\n"); |
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53 | } |
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54 | |
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55 | int maxdim = MAX(this->xdim, MAX(this->ydim, this->zdim)); |
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56 | this->sliceOrigins = new vec3f[maxdim]; |
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57 | |
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58 | this->axis = Z_AXIS; |
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59 | this->flip = FALSE; |
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60 | this->origin[0] = 0; |
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61 | this->origin[1] = 0; |
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62 | this->origin[2] = 0; |
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63 | |
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64 | size1 = xd*yd; |
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65 | size2 = xd*zd; |
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66 | size3 = yd*zd; |
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67 | |
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68 | sliceSize = MAX(MAX(size1, size2), size3); |
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69 | this->slice = new OccElement[sliceSize]; |
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70 | if (this->elems == NULL) { |
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71 | printf("OccGrid::new - insufficient memory.\n"); |
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72 | } |
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73 | } |
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74 | |
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75 | |
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76 | OccGrid::~OccGrid() |
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77 | { |
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78 | if (this->elems != NULL) { |
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79 | delete [] this->elems; |
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80 | } |
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81 | } |
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82 | |
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83 | |
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84 | int |
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85 | OccGrid::write(const char *) |
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86 | { |
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87 | return TRUE; |
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88 | } |
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89 | |
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90 | |
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91 | int |
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92 | OccGrid::writeDen(const char *filename) |
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93 | { |
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94 | /* |
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95 | |
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96 | orig_min[0] = extr_min[0] = map_min[0] = 0; |
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97 | orig_min[1] = extr_min[1] = map_min[1] = 0; |
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98 | orig_min[2] = extr_min[2] = map_min[2] = 0; |
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99 | |
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100 | orig_max[0] = extr_max[0] = map_max[0] = this->xdim - 1; |
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101 | orig_max[1] = extr_max[1] = map_max[1] = this->ydim - 1; |
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102 | orig_max[2] = extr_max[2] = map_max[2] = this->zdim - 1; |
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103 | |
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104 | orig_len[0] = extr_len[0] = map_len[0] = this->xdim; |
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105 | orig_len[1] = extr_len[1] = map_len[1] = this->ydim; |
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106 | orig_len[2] = extr_len[2] = map_len[2] = this->zdim; |
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107 | |
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108 | map_warps = 0; |
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109 | |
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110 | map_length = (long)map_len[X] * (long)map_len[Y] * (long)map_len[Z]; |
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111 | |
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112 | map_address = (uchar *)(this->elems); |
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113 | |
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114 | Store_Indexed_DEN_File(filename, sizeof(OccElement)); |
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115 | |
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116 | */ |
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117 | |
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118 | // So much for error checking... |
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119 | return TRUE; |
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120 | } |
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121 | |
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122 | |
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123 | int |
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124 | OccGrid::read(const char *) |
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125 | { |
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126 | return TRUE; |
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127 | } |
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128 | |
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129 | |
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130 | int |
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131 | OccGrid::transposeXZ() |
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132 | { |
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133 | int dim, bufInc; |
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134 | OccElement *buf1, *buf2; |
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135 | int xx,yy,zz; |
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136 | |
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137 | // Assumes that all dimensions are equal |
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138 | if (this->xdim != this->ydim || this->ydim != this->zdim) { |
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139 | printf("OccGrid::transposeXZ - need equal dimensions.\n"); |
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140 | return FALSE; |
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141 | } |
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142 | |
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143 | dim = this->xdim; |
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144 | bufInc = dim*dim; |
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145 | |
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146 | for (zz = 0; zz < dim; zz++) { |
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147 | for (yy = 0; yy < dim; yy++) { |
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148 | buf1 = this->elems + yy*dim + zz*dim*dim; |
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149 | buf2 = this->elems + zz + yy*dim; |
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150 | for (xx = 0; xx < zz; xx++, buf1++, buf2+=bufInc) { |
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151 | SWAP_USHORT(buf1->value, buf2->value); |
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152 | SWAP_USHORT(buf1->totalWeight, buf2->totalWeight); |
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153 | } |
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154 | } |
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155 | } |
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156 | |
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157 | SWAP_FLOAT(this->origin[0], this->origin[2]); |
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158 | |
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159 | return TRUE; |
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160 | } |
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161 | |
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162 | |
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163 | int |
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164 | OccGrid::transposeYZ() |
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165 | { |
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166 | int dim; |
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167 | OccElement *buf1, *buf2; |
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168 | int xx,yy,zz; |
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169 | |
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170 | // Assumes that all dimensions are equal |
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171 | if (this->xdim != this->ydim || this->ydim != this->zdim) { |
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172 | printf("OccGrid::transposeYZ - need equal dimensions.\n"); |
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173 | return FALSE; |
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174 | } |
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175 | |
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176 | dim = this->xdim; |
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177 | |
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178 | for (zz = 0; zz < dim; zz++) { |
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179 | for (yy = 0; yy < zz; yy++) { |
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180 | buf1 = this->elems + yy*dim + zz*dim*dim; |
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181 | buf2 = this->elems + zz*dim + yy*dim*dim; |
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182 | for (xx = 0; xx < dim; xx++, buf1++, buf2++) { |
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183 | SWAP_USHORT(buf1->value, buf2->value); |
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184 | SWAP_USHORT(buf1->totalWeight, buf2->totalWeight); |
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185 | } |
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186 | } |
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187 | } |
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188 | |
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189 | SWAP_FLOAT(this->origin[1], this->origin[2]); |
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190 | |
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191 | return TRUE; |
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192 | } |
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193 | |
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194 | int |
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195 | OccGrid::copy(OccGrid *src) |
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196 | { |
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197 | OccElement *el = this->elems; |
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198 | OccElement *srcel = src->elems; |
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199 | |
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200 | if (this->xdim != src->xdim || this->ydim != src->ydim || |
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201 | this->zdim != src->zdim) { |
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202 | fprintf(stderr, "Error: OccGrid::Copy -- grids must be equal size\n"); |
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203 | return FALSE; |
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204 | } |
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205 | |
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206 | int nels = this->xdim * this->ydim * this->zdim; |
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207 | // For every element, copy value & weight |
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208 | for (int i=0; i < nels; i++) { |
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209 | el->value = srcel->value; |
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210 | el->totalWeight = srcel->totalWeight; |
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211 | el++; |
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212 | srcel++; |
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213 | } |
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214 | |
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215 | return TRUE; |
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216 | } |
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217 | |
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218 | |
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219 | OccElement * |
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220 | OccGrid::getSlice(const char *axis, int sliceNum, int *pxdim, int *pydim) |
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221 | { |
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222 | OccElement *buf1, *buf2; |
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223 | int xx, yy, zz, bufInc; |
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224 | |
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225 | buf1 = slice; |
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226 | if (EQSTR(axis, "x")) { |
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227 | if (sliceNum >= this->xdim) |
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228 | return this->slice; |
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229 | bufInc = -this->xdim*this->ydim; |
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230 | for (yy = 0; yy < this->ydim; yy++) { |
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231 | buf2 = this->address(sliceNum, yy, this->zdim-1); |
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232 | for (zz = this->zdim-1; zz >= 0 ; zz--, buf1++, buf2+=bufInc) { |
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233 | buf1->value = buf2->value; |
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234 | buf1->totalWeight = buf2->totalWeight; |
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235 | } |
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236 | } |
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237 | *pxdim = this->ydim; |
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238 | *pydim = this->zdim; |
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239 | } |
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240 | else if (EQSTR(axis, "y")) { |
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241 | if (sliceNum >= this->ydim) |
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242 | return this->slice; |
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243 | bufInc = 1; |
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244 | for (zz = this->zdim-1; zz >= 0; zz--) { |
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245 | buf2 = this->address(0, sliceNum, zz); |
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246 | for (xx = 0; xx < this->xdim; xx++, buf1++, buf2+=bufInc) { |
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247 | buf1->value = buf2->value; |
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248 | buf1->totalWeight = buf2->totalWeight; |
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249 | } |
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250 | } |
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251 | *pxdim = this->xdim; |
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252 | *pydim = this->zdim; |
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253 | } |
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254 | else if (EQSTR(axis, "z")) { |
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255 | if (sliceNum >= this->ydim) |
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256 | return this->slice; |
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257 | bufInc = 1; |
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258 | for (yy = 0; yy < this->ydim; yy++) { |
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259 | buf2 = this->address(0, yy, sliceNum); |
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260 | for (xx = 0; xx < this->xdim; xx++, buf1++, buf2+=bufInc) { |
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261 | buf1->value = buf2->value; |
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262 | buf1->totalWeight = buf2->totalWeight; |
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263 | } |
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264 | } |
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265 | *pxdim = this->xdim; |
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266 | *pydim = this->ydim; |
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267 | } |
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268 | |
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269 | return this->slice; |
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270 | } |
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271 | |
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272 | |
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273 | void |
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274 | OccGrid::clear() |
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275 | { |
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276 | OccElement *buf = this->elems; |
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277 | for (int i = 0; i < this->xdim*this->ydim*this->zdim; i++, buf++) { |
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278 | buf->value = 0; |
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279 | buf->totalWeight = 0; |
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280 | } |
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281 | } |
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282 | |
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