1 | |
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2 | /* |
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3 | * ---------------------------------------------------------------------- |
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4 | * Nanovis: Visualization of Nanoelectronics Data |
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5 | * |
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6 | * dxReader.cpp |
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7 | * This module contains openDX readers for 2D and 3D volumes. |
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8 | * |
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9 | * ====================================================================== |
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10 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
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11 | * Michael McLennan <mmclennan@purdue.edu> |
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12 | * Purdue Rendering and Perceptualization Lab (PURPL) |
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13 | * |
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14 | * Copyright (c) 2004-2006 Purdue Research Foundation |
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15 | * |
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16 | * See the file "license.terms" for information on usage and |
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17 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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18 | * ====================================================================== |
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19 | */ |
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20 | |
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21 | // common dx functions |
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22 | #include "dxReaderCommon.h" |
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23 | |
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24 | #include <stdio.h> |
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25 | #include <math.h> |
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26 | #include <fstream> |
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27 | #include <iostream> |
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28 | #include <sstream> |
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29 | #include <string> |
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30 | #include <sys/types.h> |
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31 | #include <unistd.h> |
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32 | |
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33 | #include "Nv.h" |
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34 | |
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35 | #include "nanovis.h" |
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36 | #include "RpField1D.h" |
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37 | #include "RpFieldRect3D.h" |
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38 | #include "RpFieldPrism3D.h" |
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39 | #include <Unirect.h> |
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40 | |
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41 | //transfer function headers |
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42 | #include "ZincBlendeVolume.h" |
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43 | #include "NvZincBlendeReconstructor.h" |
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44 | |
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45 | #define _LOCAL_ZINC_TEST_ 0 |
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46 | |
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47 | /* Load a 3D volume from a dx-format file |
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48 | */ |
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49 | bool |
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50 | load_volume_stream2(Rappture::Outcome &result, int index, std::iostream& fin) |
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51 | { |
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52 | printf("load_volume_stream2\n"); |
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53 | Rappture::MeshTri2D xymesh; |
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54 | int dummy, nx, ny, nz, nxy, npts; |
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55 | double x0, y0, z0, dx, dy, dz, ddx, ddy, ddz; |
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56 | char line[128], type[128], *start; |
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57 | |
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58 | int isrect = 1; |
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59 | dx = dy = dz = 0.0; // Suppress compiler warning. |
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60 | x0 = y0 = z0 = 0.0; // May not have an origin line. |
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61 | nx = ny = nz = npts = nxy = 0; |
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62 | do { |
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63 | fin.getline(line,sizeof(line)-1); |
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64 | for (start=&line[0]; *start == ' ' || *start == '\t'; start++) |
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65 | ; // skip leading blanks |
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66 | |
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67 | if (*start != '#') { // skip comment lines |
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68 | if (sscanf(start, "object %d class gridpositions counts %d %d %d", |
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69 | &dummy, &nx, &ny, &nz) == 4) { |
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70 | // found grid size |
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71 | isrect = 1; |
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72 | } else if (sscanf(start, "object %d class array type float rank 1 shape 3 items %d data follows", &dummy, &nxy) == 2) { |
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73 | isrect = 0; |
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74 | double xx, yy, zz; |
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75 | for (int i=0; i < nxy; i++) { |
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76 | fin.getline(line,sizeof(line)-1); |
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77 | if (sscanf(line, "%lg %lg %lg", &xx, &yy, &zz) == 3) { |
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78 | xymesh.addNode( Rappture::Node2D(xx,yy) ); |
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79 | } |
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80 | } |
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81 | |
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82 | char fpts[128]; |
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83 | sprintf(fpts, "/tmp/tmppts%d", getpid()); |
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84 | char fcells[128]; |
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85 | sprintf(fcells, "/tmp/tmpcells%d", getpid()); |
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86 | |
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87 | std::ofstream ftmp(fpts); |
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88 | // save corners of bounding box first, to work around meshing |
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89 | // problems in voronoi utility |
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90 | ftmp << xymesh.rangeMin(Rappture::xaxis) << " " |
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91 | << xymesh.rangeMin(Rappture::yaxis) << std::endl; |
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92 | ftmp << xymesh.rangeMax(Rappture::xaxis) << " " |
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93 | << xymesh.rangeMin(Rappture::yaxis) << std::endl; |
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94 | ftmp << xymesh.rangeMax(Rappture::xaxis) << " " |
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95 | << xymesh.rangeMax(Rappture::yaxis) << std::endl; |
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96 | ftmp << xymesh.rangeMin(Rappture::xaxis) << " " |
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97 | << xymesh.rangeMax(Rappture::yaxis) << std::endl; |
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98 | for (int i=0; i < nxy; i++) { |
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99 | ftmp << xymesh.atNode(i).x() << " " << xymesh.atNode(i).y() << std::endl; |
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100 | } |
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101 | ftmp.close(); |
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102 | |
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103 | char cmdstr[512]; |
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104 | sprintf(cmdstr, "voronoi -t < %s > %s", fpts, fcells); |
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105 | if (system(cmdstr) == 0) { |
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106 | int cx, cy, cz; |
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107 | std::ifstream ftri(fcells); |
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108 | while (!ftri.eof()) { |
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109 | ftri.getline(line,sizeof(line)-1); |
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110 | if (sscanf(line, "%d %d %d", &cx, &cy, &cz) == 3) { |
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111 | if (cx >= 4 && cy >= 4 && cz >= 4) { |
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112 | // skip first 4 boundary points |
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113 | xymesh.addCell(cx-4, cy-4, cz-4); |
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114 | } |
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115 | } |
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116 | } |
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117 | ftri.close(); |
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118 | } else { |
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119 | result.error("triangularization failed"); |
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120 | return false; |
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121 | } |
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122 | unlink(fpts), unlink(fcells); |
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123 | } else if (sscanf(start, "object %d class regulararray count %d", &dummy, &nz) == 2) { |
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124 | // found z-grid |
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125 | } else if (sscanf(start, "origin %lg %lg %lg", &x0, &y0, &z0) == 3) { |
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126 | // found origin |
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127 | } else if (sscanf(start, "delta %lg %lg %lg", &ddx, &ddy, &ddz) == 3) { |
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128 | int count = 0; |
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129 | // found one of the delta lines |
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130 | if (ddx != 0.0) { |
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131 | dx = ddx; |
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132 | count++; |
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133 | } |
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134 | if (ddy != 0.0) { |
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135 | dy = ddy; |
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136 | count++; |
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137 | } |
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138 | if (ddz != 0.0) { |
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139 | dz = ddz; |
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140 | count++; |
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141 | } |
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142 | if (count > 1) { |
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143 | result.addError("don't know how to handle multiple non-zero" |
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144 | " delta values"); |
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145 | return false; |
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146 | } |
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147 | } else if (sscanf(start, "object %d class array type %s rank 0 items %d data follows", &dummy, type, &npts) == 3) { |
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148 | if (isrect && (npts != nx*ny*nz)) { |
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149 | result.addError("inconsistent data: expected %d points " |
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150 | " but found %d points", nx*ny*nz, npts); |
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151 | return false; |
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152 | } else if (!isrect && (npts != nxy*nz)) { |
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153 | result.addError("inconsistent data: expected %d points " |
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154 | " but found %d points", nxy*nz, npts); |
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155 | return false; |
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156 | } |
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157 | break; |
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158 | } else if (sscanf(start, "object %d class array type %s rank 0 times %d data follows", &dummy, type, &npts) == 3) { |
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159 | if (npts != nx*ny*nz) { |
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160 | result.addError("inconsistent data: expected %d points " |
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161 | " but found %d points", nx*ny*nz, npts); |
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162 | return false; |
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163 | } |
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164 | break; |
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165 | } |
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166 | } |
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167 | } while (!fin.eof()); |
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168 | |
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169 | fprintf(stderr, "found nx=%d ny=%d, nz=%d, x0=%f, y0=%f, z0=%f\n", |
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170 | nx, ny, nz, x0, y0, z0); |
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171 | // read data points |
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172 | if (fin.eof()) { |
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173 | result.addError("EOF found: expecting %d points", npts); |
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174 | return false; |
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175 | } |
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176 | if (isrect) { |
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177 | double dval[6]; |
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178 | int nread = 0; |
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179 | int ix = 0; |
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180 | int iy = 0; |
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181 | int iz = 0; |
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182 | float* data = new float[nx * ny * nz * 4]; |
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183 | memset(data, 0, nx*ny*nz*4); |
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184 | double vmin = 1e21; |
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185 | double nzero_min = 1e21; |
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186 | double vmax = -1e21; |
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187 | |
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188 | |
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189 | while (!fin.eof() && nread < npts) { |
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190 | fin.getline(line,sizeof(line)-1); |
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191 | int n = sscanf(line, "%lg %lg %lg %lg %lg %lg", &dval[0], &dval[1], &dval[2], &dval[3], &dval[4], &dval[5]); |
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192 | |
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193 | for (int p=0; p < n; p++) { |
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194 | int nindex = (iz*nx*ny + iy*nx + ix) * 4; |
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195 | data[nindex] = dval[p]; |
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196 | |
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197 | if (dval[p] < vmin) { |
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198 | vmin = dval[p]; |
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199 | } else if (dval[p] > vmax) { |
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200 | vmax = dval[p]; |
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201 | } |
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202 | if (dval[p] != 0.0f && dval[p] < nzero_min) { |
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203 | nzero_min = dval[p]; |
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204 | } |
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205 | |
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206 | nread++; |
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207 | if (++iz >= nz) { |
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208 | iz = 0; |
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209 | if (++iy >= ny) { |
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210 | iy = 0; |
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211 | ++ix; |
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212 | } |
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213 | } |
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214 | } |
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215 | } |
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216 | |
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217 | // make sure that we read all of the expected points |
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218 | if (nread != nx*ny*nz) { |
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219 | result.addError("inconsistent data: expected %d points " |
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220 | " but found %d points", nx*ny*nz, nread); |
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221 | return false; |
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222 | } |
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223 | |
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224 | double dv = vmax - vmin; |
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225 | int count = nx*ny*nz; |
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226 | int ngen = 0; |
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227 | double v; |
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228 | if (dv == 0.0) { |
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229 | dv = 1.0; |
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230 | } |
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231 | |
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232 | for (int i = 0; i < count; ++i) { |
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233 | v = data[ngen]; |
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234 | // scale all values [0-1], -1 => out of bounds |
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235 | // |
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236 | // INSOO |
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237 | v = (isnan(v)) ? -1.0 : (v - vmin)/dv; |
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238 | data[ngen] = v; |
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239 | ngen += 4; |
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240 | } |
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241 | |
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242 | computeSimpleGradient(data, nx, ny, nz); |
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243 | |
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244 | dx = nx; |
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245 | dy = ny; |
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246 | dz = nz; |
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247 | |
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248 | Volume *volPtr; |
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249 | volPtr = NanoVis::load_volume(index, nx, ny, nz, 4, data, |
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250 | vmin, vmax, nzero_min); |
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251 | volPtr->xAxis.SetRange(x0, x0 + (nx * dx)); |
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252 | volPtr->yAxis.SetRange(y0, y0 + (ny * dy)); |
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253 | volPtr->zAxis.SetRange(z0, z0 + (nz * dz)); |
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254 | volPtr->wAxis.SetRange(vmin, vmax); |
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255 | volPtr->update_pending = true; |
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256 | delete [] data; |
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257 | |
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258 | } else { |
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259 | Rappture::Mesh1D zgrid(z0, z0+nz*dz, nz); |
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260 | Rappture::FieldPrism3D field(xymesh, zgrid); |
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261 | |
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262 | double dval; |
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263 | int nread = 0; |
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264 | int ixy = 0; |
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265 | int iz = 0; |
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266 | while (!fin.eof() && nread < npts) { |
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267 | fin >> dval; |
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268 | if (fin.fail()) { |
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269 | result.addError("after %d of %d points: can't read number", |
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270 | nread, npts); |
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271 | return false; |
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272 | } else { |
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273 | int nid = nxy*iz + ixy; |
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274 | field.define(nid, dval); |
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275 | |
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276 | nread++; |
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277 | if (++iz >= nz) { |
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278 | iz = 0; |
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279 | ixy++; |
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280 | } |
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281 | } |
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282 | } |
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283 | |
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284 | // make sure that we read all of the expected points |
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285 | if (nread != nxy*nz) { |
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286 | result.addError("inconsistent data: expected %d points " |
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287 | "but found %d points", nxy*nz, nread); |
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288 | return false; |
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289 | } |
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290 | |
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291 | // figure out a good mesh spacing |
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292 | int nsample = 30; |
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293 | x0 = field.rangeMin(Rappture::xaxis); |
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294 | dx = field.rangeMax(Rappture::xaxis) - field.rangeMin(Rappture::xaxis); |
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295 | y0 = field.rangeMin(Rappture::yaxis); |
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296 | dy = field.rangeMax(Rappture::yaxis) - field.rangeMin(Rappture::yaxis); |
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297 | z0 = field.rangeMin(Rappture::zaxis); |
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298 | dz = field.rangeMax(Rappture::zaxis) - field.rangeMin(Rappture::zaxis); |
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299 | double dmin = pow((dx*dy*dz)/(nsample*nsample*nsample), 0.333); |
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300 | |
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301 | nx = (int)ceil(dx/dmin); |
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302 | ny = (int)ceil(dy/dmin); |
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303 | nz = (int)ceil(dz/dmin); |
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304 | #ifndef NV40 |
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305 | // must be an even power of 2 for older cards |
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306 | nx = (int)pow(2.0, ceil(log10((double)nx)/log10(2.0))); |
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307 | ny = (int)pow(2.0, ceil(log10((double)ny)/log10(2.0))); |
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308 | nz = (int)pow(2.0, ceil(log10((double)nz)/log10(2.0))); |
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309 | #endif |
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310 | float *data = new float[4*nx*ny*nz]; |
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311 | |
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312 | double vmin = field.valueMin(); |
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313 | double dv = field.valueMax() - field.valueMin(); |
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314 | if (dv == 0.0) { |
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315 | dv = 1.0; |
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316 | } |
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317 | // generate the uniformly sampled data that we need for a volume |
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318 | int ngen = 0; |
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319 | double nzero_min = 0.0; |
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320 | for (iz=0; iz < nz; iz++) { |
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321 | double zval = z0 + iz*dmin; |
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322 | for (int iy=0; iy < ny; iy++) { |
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323 | double yval = y0 + iy*dmin; |
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324 | for (int ix=0; ix < nx; ix++) { |
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325 | double xval = x0 + ix*dmin; |
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326 | double v = field.value(xval,yval,zval); |
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327 | |
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328 | if (v != 0.0f && v < nzero_min) { |
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329 | nzero_min = v; |
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330 | } |
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331 | // scale all values [0-1], -1 => out of bounds |
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332 | v = (isnan(v)) ? -1.0 : (v - vmin)/dv; |
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333 | data[ngen] = v; |
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334 | |
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335 | ngen += 4; |
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336 | } |
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337 | } |
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338 | } |
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339 | |
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340 | // FIXME: This next section of code should be replaced by a |
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341 | // call to the computeSimpleGradient() function. There is a slight |
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342 | // difference in the code below and the aforementioned function |
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343 | // in that the commented out lines in the else statements are |
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344 | // different. |
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345 | // |
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346 | // Compute the gradient of this data. BE CAREFUL: center |
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347 | // calculation on each node to avoid skew in either direction. |
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348 | ngen = 0; |
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349 | for (int iz=0; iz < nz; iz++) { |
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350 | for (int iy=0; iy < ny; iy++) { |
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351 | for (int ix=0; ix < nx; ix++) { |
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352 | // gradient in x-direction |
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353 | //double valm1 = (ix == 0) ? 0.0 : data[ngen-4]; |
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354 | //double valp1 = (ix == nx-1) ? 0.0 : data[ngen+4]; |
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355 | double valm1 = (ix == 0) ? 0.0 : data[ngen-4]; |
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356 | double valp1 = (ix == nx-1) ? 0.0 : data[ngen+4]; |
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357 | if (valm1 < 0 || valp1 < 0) { |
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358 | data[ngen+1] = 0.0; |
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359 | } else { |
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360 | data[ngen+1] = valp1-valm1; // assume dx=1 |
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361 | //data[ngen+1] = ((valp1-valm1) + 1.0) * 0.5; // assume dz=1 |
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362 | } |
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363 | |
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364 | // gradient in y-direction |
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365 | valm1 = (iy == 0) ? 0.0 : data[ngen-4*nx]; |
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366 | valp1 = (iy == ny-1) ? 0.0 : data[ngen+4*nx]; |
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367 | if (valm1 < 0 || valp1 < 0) { |
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368 | data[ngen+2] = 0.0; |
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369 | } else { |
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370 | data[ngen+2] = valp1-valm1; // assume dy=1 |
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371 | //data[ngen+2] = ((valp1-valm1) + 1.0) * 0.5; // assume dz=1 |
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372 | } |
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373 | |
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374 | // gradient in z-direction |
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375 | valm1 = (iz == 0) ? 0.0 : data[ngen-4*nx*ny]; |
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376 | valp1 = (iz == nz-1) ? 0.0 : data[ngen+4*nx*ny]; |
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377 | if (valm1 < 0 || valp1 < 0) { |
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378 | data[ngen+3] = 0.0; |
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379 | } else { |
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380 | data[ngen+3] = valp1-valm1; // assume dz=1 |
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381 | //data[ngen+3] = ((valp1-valm1) + 1.0) * 0.5; // assume dz=1 |
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382 | } |
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383 | |
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384 | ngen += 4; |
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385 | } |
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386 | } |
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387 | } |
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388 | |
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389 | Volume *volPtr; |
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390 | volPtr = NanoVis::load_volume(index, nx, ny, nz, 4, data, |
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391 | field.valueMin(), field.valueMax(), nzero_min); |
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392 | volPtr->xAxis.SetRange(field.rangeMin(Rappture::xaxis), |
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393 | field.rangeMax(Rappture::xaxis)); |
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394 | volPtr->yAxis.SetRange(field.rangeMin(Rappture::yaxis), |
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395 | field.rangeMax(Rappture::yaxis)); |
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396 | volPtr->zAxis.SetRange(field.rangeMin(Rappture::zaxis), |
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397 | field.rangeMax(Rappture::zaxis)); |
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398 | volPtr->wAxis.SetRange(field.valueMin(), field.valueMax()); |
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399 | volPtr->update_pending = true; |
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400 | delete [] data; |
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401 | } |
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402 | // |
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403 | // Center this new volume on the origin. |
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404 | // |
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405 | float dx0 = -0.5; |
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406 | float dy0 = -0.5*dy/dx; |
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407 | float dz0 = -0.5*dz/dx; |
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408 | NanoVis::volume[index]->move(Vector3(dx0, dy0, dz0)); |
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409 | return true; |
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410 | } |
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411 | |
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412 | bool |
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413 | load_volume_stream(Rappture::Outcome &result, int index, std::iostream& fin) |
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414 | { |
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415 | printf("load_volume_stream\n"); |
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416 | |
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417 | Rappture::MeshTri2D xymesh; |
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418 | int dummy, nx, ny, nz, nxy, npts; |
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419 | double x0, y0, z0, dx, dy, dz, ddx, ddy, ddz; |
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420 | char line[128], type[128], *start; |
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421 | |
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422 | int isrect = 1; |
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423 | |
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424 | dx = dy = dz = 0.0; // Suppress compiler warning. |
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425 | x0 = y0 = z0 = 0.0; // May not have an origin line. |
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426 | nx = ny = nz = npts = nxy = 0; |
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427 | while (!fin.eof()) { |
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428 | fin.getline(line, sizeof(line) - 1); |
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429 | if (fin.fail()) { |
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430 | result.error("error in data stream"); |
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431 | return false; |
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432 | } |
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433 | for (start=line; *start == ' ' || *start == '\t'; start++) |
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434 | ; // skip leading blanks |
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435 | |
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436 | if (*start != '#') { // skip comment lines |
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437 | if (sscanf(start, "object %d class gridpositions counts %d %d %d", &dummy, &nx, &ny, &nz) == 4) { |
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438 | // found grid size |
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439 | isrect = 1; |
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440 | } else if (sscanf(start, "object %d class array type float rank 1 shape 3 items %d data follows", &dummy, &nxy) == 2) { |
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441 | isrect = 0; |
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442 | |
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443 | double xx, yy, zz; |
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444 | for (int i=0; i < nxy; i++) { |
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445 | fin.getline(line,sizeof(line)-1); |
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446 | if (sscanf(line, "%lg %lg %lg", &xx, &yy, &zz) == 3) { |
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447 | xymesh.addNode( Rappture::Node2D(xx,yy) ); |
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448 | } |
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449 | } |
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450 | |
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451 | char fpts[128]; |
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452 | sprintf(fpts, "/tmp/tmppts%d", getpid()); |
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453 | char fcells[128]; |
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454 | sprintf(fcells, "/tmp/tmpcells%d", getpid()); |
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455 | |
---|
456 | std::ofstream ftmp(fpts); |
---|
457 | // save corners of bounding box first, to work around meshing |
---|
458 | // problems in voronoi utility |
---|
459 | ftmp << xymesh.rangeMin(Rappture::xaxis) << " " |
---|
460 | << xymesh.rangeMin(Rappture::yaxis) << std::endl; |
---|
461 | ftmp << xymesh.rangeMax(Rappture::xaxis) << " " |
---|
462 | << xymesh.rangeMin(Rappture::yaxis) << std::endl; |
---|
463 | ftmp << xymesh.rangeMax(Rappture::xaxis) << " " |
---|
464 | << xymesh.rangeMax(Rappture::yaxis) << std::endl; |
---|
465 | ftmp << xymesh.rangeMin(Rappture::xaxis) << " " |
---|
466 | << xymesh.rangeMax(Rappture::yaxis) << std::endl; |
---|
467 | for (int i=0; i < nxy; i++) { |
---|
468 | ftmp << xymesh.atNode(i).x() << " " << xymesh.atNode(i).y() << std::endl; |
---|
469 | |
---|
470 | } |
---|
471 | ftmp.close(); |
---|
472 | |
---|
473 | char cmdstr[512]; |
---|
474 | sprintf(cmdstr, "voronoi -t < %s > %s", fpts, fcells); |
---|
475 | if (system(cmdstr) == 0) { |
---|
476 | int cx, cy, cz; |
---|
477 | std::ifstream ftri(fcells); |
---|
478 | while (!ftri.eof()) { |
---|
479 | ftri.getline(line,sizeof(line)-1); |
---|
480 | if (sscanf(line, "%d %d %d", &cx, &cy, &cz) == 3) { |
---|
481 | if (cx >= 4 && cy >= 4 && cz >= 4) { |
---|
482 | // skip first 4 boundary points |
---|
483 | xymesh.addCell(cx-4, cy-4, cz-4); |
---|
484 | } |
---|
485 | } |
---|
486 | } |
---|
487 | ftri.close(); |
---|
488 | } else { |
---|
489 | result.error("triangularization failed"); |
---|
490 | return false; |
---|
491 | } |
---|
492 | unlink(fpts); |
---|
493 | unlink(fcells); |
---|
494 | } else if (sscanf(start, "object %d class regulararray count %d", &dummy, &nz) == 2) { |
---|
495 | // found z-grid |
---|
496 | } else if (sscanf(start, "origin %lg %lg %lg", &x0, &y0, &z0) == 3) { |
---|
497 | // found origin |
---|
498 | } else if (sscanf(start, "delta %lg %lg %lg", &ddx, &ddy, &ddz) == 3) { |
---|
499 | // found one of the delta lines |
---|
500 | if (ddx != 0.0) { dx = ddx; } |
---|
501 | else if (ddy != 0.0) { dy = ddy; } |
---|
502 | else if (ddz != 0.0) { dz = ddz; } |
---|
503 | } else if (sscanf(start, "object %d class array type %s rank 0 items %d data follows", &dummy, type, &npts) == 3) { |
---|
504 | if (isrect && (npts != nx*ny*nz)) { |
---|
505 | result.addError("inconsistent data: expected %d points" |
---|
506 | " but found %d points", nx*ny*nz, npts); |
---|
507 | return false; |
---|
508 | } else if (!isrect && (npts != nxy*nz)) { |
---|
509 | result.addError("inconsistent data: expected %d points" |
---|
510 | " but found %d points", nx*ny*nz, npts); |
---|
511 | return false; |
---|
512 | } |
---|
513 | break; |
---|
514 | } else if (sscanf(start, "object %d class array type %s rank 0 times %d data follows", &dummy, type, &npts) == 3) { |
---|
515 | if (npts != nx*ny*nz) { |
---|
516 | result.addError("inconsistent data: expected %d points" |
---|
517 | " but found %d points", nx*ny*nz, npts); |
---|
518 | return false; |
---|
519 | } |
---|
520 | break; |
---|
521 | } |
---|
522 | } |
---|
523 | } |
---|
524 | // read data points |
---|
525 | if (fin.eof()) { |
---|
526 | result.error("data not found in stream"); |
---|
527 | return false; |
---|
528 | } |
---|
529 | if (isrect) { |
---|
530 | Rappture::Mesh1D xgrid(x0, x0+nx*dx, nx); |
---|
531 | Rappture::Mesh1D ygrid(y0, y0+ny*dy, ny); |
---|
532 | Rappture::Mesh1D zgrid(z0, z0+nz*dz, nz); |
---|
533 | Rappture::FieldRect3D field(xgrid, ygrid, zgrid); |
---|
534 | |
---|
535 | double dval[6]; |
---|
536 | int nread = 0; |
---|
537 | int ix = 0; |
---|
538 | int iy = 0; |
---|
539 | int iz = 0; |
---|
540 | while (!fin.eof() && nread < npts) { |
---|
541 | fin.getline(line,sizeof(line)-1); |
---|
542 | if (fin.fail()) { |
---|
543 | result.addError("error reading data points"); |
---|
544 | return false; |
---|
545 | } |
---|
546 | int n = sscanf(line, "%lg %lg %lg %lg %lg %lg", &dval[0], &dval[1], &dval[2], &dval[3], &dval[4], &dval[5]); |
---|
547 | |
---|
548 | for (int p=0; p < n; p++) { |
---|
549 | int nindex = iz*nx*ny + iy*nx + ix; |
---|
550 | field.define(nindex, dval[p]); |
---|
551 | fflush(stderr); |
---|
552 | nread++; |
---|
553 | if (++iz >= nz) { |
---|
554 | iz = 0; |
---|
555 | if (++iy >= ny) { |
---|
556 | iy = 0; |
---|
557 | ++ix; |
---|
558 | } |
---|
559 | } |
---|
560 | } |
---|
561 | } |
---|
562 | |
---|
563 | // make sure that we read all of the expected points |
---|
564 | if (nread != nx*ny*nz) { |
---|
565 | result.addError("inconsistent data: expected %d points" |
---|
566 | " but found %d points", nx*ny*nz, npts); |
---|
567 | return false; |
---|
568 | } |
---|
569 | |
---|
570 | // figure out a good mesh spacing |
---|
571 | int nsample = 30; |
---|
572 | dx = field.rangeMax(Rappture::xaxis) - field.rangeMin(Rappture::xaxis); |
---|
573 | dy = field.rangeMax(Rappture::yaxis) - field.rangeMin(Rappture::yaxis); |
---|
574 | dz = field.rangeMax(Rappture::zaxis) - field.rangeMin(Rappture::zaxis); |
---|
575 | double dmin = pow((dx*dy*dz)/(nsample*nsample*nsample), 0.333); |
---|
576 | |
---|
577 | nx = (int)ceil(dx/dmin); |
---|
578 | ny = (int)ceil(dy/dmin); |
---|
579 | nz = (int)ceil(dz/dmin); |
---|
580 | |
---|
581 | #ifndef NV40 |
---|
582 | // must be an even power of 2 for older cards |
---|
583 | nx = (int)pow(2.0, ceil(log10((double)nx)/log10(2.0))); |
---|
584 | ny = (int)pow(2.0, ceil(log10((double)ny)/log10(2.0))); |
---|
585 | nz = (int)pow(2.0, ceil(log10((double)nz)/log10(2.0))); |
---|
586 | #endif |
---|
587 | |
---|
588 | //#define _SOBEL |
---|
589 | #ifdef _SOBEL_ |
---|
590 | const int step = 1; |
---|
591 | float *cdata = new float[nx*ny*nz * step]; |
---|
592 | int ngen = 0; |
---|
593 | double nzero_min = 0.0; |
---|
594 | for (int iz=0; iz < nz; iz++) { |
---|
595 | double zval = z0 + iz*dmin; |
---|
596 | for (int iy=0; iy < ny; iy++) { |
---|
597 | double yval = y0 + iy*dmin; |
---|
598 | for (int ix=0; ix < nx; ix++) { |
---|
599 | double xval = x0 + ix*dmin; |
---|
600 | double v = field.value(xval,yval,zval); |
---|
601 | |
---|
602 | if (v != 0.0f && v < nzero_min) { |
---|
603 | nzero_min = v; |
---|
604 | } |
---|
605 | |
---|
606 | // scale all values [0-1], -1 => out of bounds |
---|
607 | v = (isnan(v)) ? -1.0 : v; |
---|
608 | |
---|
609 | cdata[ngen] = v; |
---|
610 | ngen += step; |
---|
611 | } |
---|
612 | } |
---|
613 | } |
---|
614 | |
---|
615 | float* data = computeGradient(cdata, nx, ny, nz, field.valueMin(), |
---|
616 | field.valueMax()); |
---|
617 | #else |
---|
618 | double vmin = field.valueMin(); |
---|
619 | double vmax = field.valueMax(); |
---|
620 | double nzero_min = 0; |
---|
621 | float *data = new float[nx*ny*nz * 4]; |
---|
622 | double dv = vmax - vmin; |
---|
623 | int ngen = 0; |
---|
624 | if (dv == 0.0) dv = 1.0; |
---|
625 | |
---|
626 | for (int iz=0; iz < nz; iz++) { |
---|
627 | double zval = z0 + iz*dmin; |
---|
628 | for (int iy=0; iy < ny; iy++) { |
---|
629 | double yval = y0 + iy*dmin; |
---|
630 | for (int ix=0; ix < nx; ix++) { |
---|
631 | double xval = x0 + ix*dmin; |
---|
632 | double v = field.value(xval,yval,zval); |
---|
633 | |
---|
634 | // scale all values [0-1], -1 => out of bounds |
---|
635 | v = (isnan(v)) ? -1.0 : (v - vmin)/dv; |
---|
636 | |
---|
637 | data[ngen] = v; |
---|
638 | ngen += 4; |
---|
639 | } |
---|
640 | } |
---|
641 | } |
---|
642 | |
---|
643 | computeSimpleGradient(data, nx, ny, nz); |
---|
644 | #endif |
---|
645 | |
---|
646 | #ifdef notdef |
---|
647 | for (int i=0; i<nx*ny*nz; i++) { |
---|
648 | fprintf(stderr,"enddata[%i] = %lg\n",i,data[i]); |
---|
649 | fflush(stderr); |
---|
650 | } |
---|
651 | #endif |
---|
652 | fprintf(stdout,"End Data Stats index = %i\n",index); |
---|
653 | fprintf(stdout,"nx = %i ny = %i nz = %i\n",nx,ny,nz); |
---|
654 | fprintf(stdout,"dx = %lg dy = %lg dz = %lg\n",dx,dy,dz); |
---|
655 | fprintf(stdout,"dataMin = %lg\tdataMax = %lg\tnzero_min = %lg\n", field.valueMin(),field.valueMax(),nzero_min); |
---|
656 | fflush(stdout); |
---|
657 | |
---|
658 | Volume *volPtr; |
---|
659 | volPtr = NanoVis::load_volume(index, nx, ny, nz, 4, data, |
---|
660 | field.valueMin(), field.valueMax(), nzero_min); |
---|
661 | volPtr->xAxis.SetRange(field.rangeMin(Rappture::xaxis), |
---|
662 | field.rangeMax(Rappture::xaxis)); |
---|
663 | volPtr->yAxis.SetRange(field.rangeMin(Rappture::yaxis), |
---|
664 | field.rangeMax(Rappture::yaxis)); |
---|
665 | volPtr->zAxis.SetRange(field.rangeMin(Rappture::zaxis), |
---|
666 | field.rangeMax(Rappture::zaxis)); |
---|
667 | volPtr->wAxis.SetRange(field.valueMin(), field.valueMax()); |
---|
668 | volPtr->update_pending = true; |
---|
669 | // TBD.. |
---|
670 | // POINTSET |
---|
671 | /* |
---|
672 | PointSet* pset = new PointSet(); |
---|
673 | pset->initialize(volume[index], (float*) data); |
---|
674 | pset->setVisible(true); |
---|
675 | NanoVis::pointSet.push_back(pset); |
---|
676 | updateColor(pset); |
---|
677 | NanoVis::volume[index]->pointsetIndex = NanoVis::pointSet.size() - 1; |
---|
678 | */ |
---|
679 | |
---|
680 | delete [] data; |
---|
681 | |
---|
682 | } else { |
---|
683 | Rappture::Mesh1D zgrid(z0, z0+nz*dz, nz); |
---|
684 | Rappture::FieldPrism3D field(xymesh, zgrid); |
---|
685 | |
---|
686 | double dval; |
---|
687 | int nread = 0; |
---|
688 | int ixy = 0; |
---|
689 | int iz = 0; |
---|
690 | while (!fin.eof() && nread < npts) { |
---|
691 | fin >> dval; |
---|
692 | if (fin.fail()) { |
---|
693 | result.addError("after %d of %d points: can't read number", |
---|
694 | nread, npts); |
---|
695 | return false; |
---|
696 | } else { |
---|
697 | int nid = nxy*iz + ixy; |
---|
698 | field.define(nid, dval); |
---|
699 | |
---|
700 | nread++; |
---|
701 | if (++iz >= nz) { |
---|
702 | iz = 0; |
---|
703 | ixy++; |
---|
704 | } |
---|
705 | } |
---|
706 | } |
---|
707 | |
---|
708 | // make sure that we read all of the expected points |
---|
709 | if (nread != nxy*nz) { |
---|
710 | result.addError("inconsistent data: expected %d points" |
---|
711 | " but found %d points", nx*ny*nz, npts); |
---|
712 | return false; |
---|
713 | } |
---|
714 | |
---|
715 | // figure out a good mesh spacing |
---|
716 | int nsample = 30; |
---|
717 | x0 = field.rangeMin(Rappture::xaxis); |
---|
718 | dx = field.rangeMax(Rappture::xaxis) - field.rangeMin(Rappture::xaxis); |
---|
719 | y0 = field.rangeMin(Rappture::yaxis); |
---|
720 | dy = field.rangeMax(Rappture::yaxis) - field.rangeMin(Rappture::yaxis); |
---|
721 | z0 = field.rangeMin(Rappture::zaxis); |
---|
722 | dz = field.rangeMax(Rappture::zaxis) - field.rangeMin(Rappture::zaxis); |
---|
723 | double dmin = pow((dx*dy*dz)/(nsample*nsample*nsample), 0.333); |
---|
724 | |
---|
725 | nx = (int)ceil(dx/dmin); |
---|
726 | ny = (int)ceil(dy/dmin); |
---|
727 | nz = (int)ceil(dz/dmin); |
---|
728 | #ifndef NV40 |
---|
729 | // must be an even power of 2 for older cards |
---|
730 | nx = (int)pow(2.0, ceil(log10((double)nx)/log10(2.0))); |
---|
731 | ny = (int)pow(2.0, ceil(log10((double)ny)/log10(2.0))); |
---|
732 | nz = (int)pow(2.0, ceil(log10((double)nz)/log10(2.0))); |
---|
733 | #endif |
---|
734 | float *data = new float[4*nx*ny*nz]; |
---|
735 | |
---|
736 | double vmin = field.valueMin(); |
---|
737 | double dv = field.valueMax() - field.valueMin(); |
---|
738 | if (dv == 0.0) { dv = 1.0; } |
---|
739 | |
---|
740 | // generate the uniformly sampled data that we need for a volume |
---|
741 | int ngen = 0; |
---|
742 | double nzero_min = 0.0; |
---|
743 | for (iz=0; iz < nz; iz++) { |
---|
744 | double zval = z0 + iz*dmin; |
---|
745 | for (int iy=0; iy < ny; iy++) { |
---|
746 | double yval = y0 + iy*dmin; |
---|
747 | for (int ix=0; ix < nx; ix++) { |
---|
748 | double xval = x0 + ix*dmin; |
---|
749 | double v = field.value(xval,yval,zval); |
---|
750 | |
---|
751 | if (v != 0.0f && v < nzero_min) { |
---|
752 | nzero_min = v; |
---|
753 | } |
---|
754 | // scale all values [0-1], -1 => out of bounds |
---|
755 | v = (isnan(v)) ? -1.0 : (v - vmin)/dv; |
---|
756 | data[ngen] = v; |
---|
757 | |
---|
758 | ngen += 4; |
---|
759 | } |
---|
760 | } |
---|
761 | } |
---|
762 | |
---|
763 | // Compute the gradient of this data. BE CAREFUL: center |
---|
764 | // calculation on each node to avoid skew in either direction. |
---|
765 | ngen = 0; |
---|
766 | for (int iz=0; iz < nz; iz++) { |
---|
767 | for (int iy=0; iy < ny; iy++) { |
---|
768 | for (int ix=0; ix < nx; ix++) { |
---|
769 | // gradient in x-direction |
---|
770 | double valm1 = (ix == 0) ? 0.0 : data[ngen-1]; |
---|
771 | double valp1 = (ix == nx-1) ? 0.0 : data[ngen+1]; |
---|
772 | if (valm1 < 0 || valp1 < 0) { |
---|
773 | data[ngen+1] = 0.0; |
---|
774 | } else { |
---|
775 | data[ngen+1] = valp1-valm1; // assume dx=1 |
---|
776 | //data[ngen+1] = ((valp1-valm1) + 1) * 0.5; // assume dx=1 (ISO) |
---|
777 | } |
---|
778 | |
---|
779 | // gradient in y-direction |
---|
780 | valm1 = (iy == 0) ? 0.0 : data[ngen-4*nx]; |
---|
781 | valp1 = (iy == ny-1) ? 0.0 : data[ngen+4*nx]; |
---|
782 | if (valm1 < 0 || valp1 < 0) { |
---|
783 | data[ngen+2] = 0.0; |
---|
784 | } else { |
---|
785 | data[ngen+2] = valp1-valm1; // assume dy=1 |
---|
786 | //data[ngen+2] = ((valp1-valm1) + 1) * 0.5; // assume dy=1 (ISO) |
---|
787 | } |
---|
788 | |
---|
789 | // gradient in z-direction |
---|
790 | valm1 = (iz == 0) ? 0.0 : data[ngen-4*nx*ny]; |
---|
791 | valp1 = (iz == nz-1) ? 0.0 : data[ngen+4*nx*ny]; |
---|
792 | if (valm1 < 0 || valp1 < 0) { |
---|
793 | data[ngen+3] = 0.0; |
---|
794 | } else { |
---|
795 | data[ngen+3] = valp1-valm1; // assume dz=1 |
---|
796 | //data[ngen+3] = ((valp1-valm1) + 1) * 0.5; // assume dz=1 (ISO) |
---|
797 | } |
---|
798 | |
---|
799 | ngen += 4; |
---|
800 | } |
---|
801 | } |
---|
802 | } |
---|
803 | |
---|
804 | Volume *volPtr; |
---|
805 | volPtr = NanoVis::load_volume(index, nx, ny, nz, 4, data, |
---|
806 | field.valueMin(), field.valueMax(), nzero_min); |
---|
807 | volPtr->xAxis.SetRange(field.rangeMin(Rappture::xaxis), |
---|
808 | field.rangeMax(Rappture::xaxis)); |
---|
809 | volPtr->yAxis.SetRange(field.rangeMin(Rappture::yaxis), |
---|
810 | field.rangeMax(Rappture::yaxis)); |
---|
811 | volPtr->zAxis.SetRange(field.rangeMin(Rappture::zaxis), |
---|
812 | field.rangeMax(Rappture::zaxis)); |
---|
813 | volPtr->wAxis.SetRange(field.valueMin(), field.valueMax()); |
---|
814 | volPtr->update_pending = true; |
---|
815 | // TBD.. |
---|
816 | // POINTSET |
---|
817 | /* |
---|
818 | PointSet* pset = new PointSet(); |
---|
819 | pset->initialize(volume[index], (float*) data); |
---|
820 | pset->setVisible(true); |
---|
821 | NanoVis::pointSet.push_back(pset); |
---|
822 | updateColor(pset); |
---|
823 | NanoVis::volume[index]->pointsetIndex = NanoVis::pointSet.size() - 1; |
---|
824 | */ |
---|
825 | |
---|
826 | |
---|
827 | delete [] data; |
---|
828 | } |
---|
829 | |
---|
830 | // |
---|
831 | // Center this new volume on the origin. |
---|
832 | // |
---|
833 | float dx0 = -0.5; |
---|
834 | float dy0 = -0.5*dy/dx; |
---|
835 | float dz0 = -0.5*dz/dx; |
---|
836 | NanoVis::volume[index]->move(Vector3(dx0, dy0, dz0)); |
---|
837 | return true; |
---|
838 | } |
---|
839 | |
---|
840 | |
---|
841 | bool |
---|
842 | load_volume_stream_insoo(Rappture::Outcome &result, int index, |
---|
843 | std::iostream& fin) |
---|
844 | { |
---|
845 | printf("load_volume_stream\n"); |
---|
846 | |
---|
847 | Rappture::MeshTri2D xymesh; |
---|
848 | int dummy, nx, ny, nz, nxy, npts; |
---|
849 | double x0, y0, z0, dx, dy, dz, ddx, ddy, ddz; |
---|
850 | char line[128], type[128], *start; |
---|
851 | |
---|
852 | int isrect = 1; |
---|
853 | |
---|
854 | dx = dy = dz = 0.0; // Suppress compiler warning. |
---|
855 | x0 = y0 = z0 = 0.0; // May not have an origin line. |
---|
856 | nx = ny = nz = npts = nxy = 0; |
---|
857 | while (!fin.eof()) { |
---|
858 | fin.getline(line, sizeof(line) - 1); |
---|
859 | if (fin.fail()) { |
---|
860 | result.addError("line \"%s\"error in data stream"); |
---|
861 | return false; |
---|
862 | } |
---|
863 | for (start=line; *start == ' ' || *start == '\t'; start++) |
---|
864 | ; // skip leading blanks |
---|
865 | |
---|
866 | if (*start != '#') { // skip comment lines |
---|
867 | if (sscanf(start, "object %d class gridpositions counts %d %d %d", &dummy, &nx, &ny, &nz) == 4) { |
---|
868 | // found grid size |
---|
869 | isrect = 1; |
---|
870 | } else if (sscanf(start, "object %d class array type float rank 1 shape 3 items %d data follows", &dummy, &nxy) == 2) { |
---|
871 | isrect = 0; |
---|
872 | |
---|
873 | double xx, yy, zz; |
---|
874 | for (int i=0; i < nxy; i++) { |
---|
875 | fin.getline(line,sizeof(line)-1); |
---|
876 | if (sscanf(line, "%lg %lg %lg", &xx, &yy, &zz) == 3) { |
---|
877 | xymesh.addNode( Rappture::Node2D(xx,yy) ); |
---|
878 | } |
---|
879 | } |
---|
880 | |
---|
881 | char fpts[128]; |
---|
882 | sprintf(fpts, "/tmp/tmppts%d", getpid()); |
---|
883 | char fcells[128]; |
---|
884 | sprintf(fcells, "/tmp/tmpcells%d", getpid()); |
---|
885 | |
---|
886 | std::ofstream ftmp(fpts); |
---|
887 | // save corners of bounding box first, to work around meshing |
---|
888 | // problems in voronoi utility |
---|
889 | ftmp << xymesh.rangeMin(Rappture::xaxis) << " " |
---|
890 | << xymesh.rangeMin(Rappture::yaxis) << std::endl; |
---|
891 | ftmp << xymesh.rangeMax(Rappture::xaxis) << " " |
---|
892 | << xymesh.rangeMin(Rappture::yaxis) << std::endl; |
---|
893 | ftmp << xymesh.rangeMax(Rappture::xaxis) << " " |
---|
894 | << xymesh.rangeMax(Rappture::yaxis) << std::endl; |
---|
895 | ftmp << xymesh.rangeMin(Rappture::xaxis) << " " |
---|
896 | << xymesh.rangeMax(Rappture::yaxis) << std::endl; |
---|
897 | for (int i=0; i < nxy; i++) { |
---|
898 | ftmp << xymesh.atNode(i).x() << " " << xymesh.atNode(i).y() << std::endl; |
---|
899 | |
---|
900 | } |
---|
901 | ftmp.close(); |
---|
902 | |
---|
903 | char cmdstr[512]; |
---|
904 | sprintf(cmdstr, "voronoi -t < %s > %s", fpts, fcells); |
---|
905 | if (system(cmdstr) == 0) { |
---|
906 | int cx, cy, cz; |
---|
907 | std::ifstream ftri(fcells); |
---|
908 | while (!ftri.eof()) { |
---|
909 | ftri.getline(line,sizeof(line)-1); |
---|
910 | if (sscanf(line, "%d %d %d", &cx, &cy, &cz) == 3) { |
---|
911 | if (cx >= 4 && cy >= 4 && cz >= 4) { |
---|
912 | // skip first 4 boundary points |
---|
913 | xymesh.addCell(cx-4, cy-4, cz-4); |
---|
914 | } |
---|
915 | } |
---|
916 | } |
---|
917 | ftri.close(); |
---|
918 | } else { |
---|
919 | result.error("triangularization failed"); |
---|
920 | return false; |
---|
921 | } |
---|
922 | unlink(fpts), unlink(fcells); |
---|
923 | } else if (sscanf(start, "object %d class regulararray count %d", &dummy, &nz) == 2) { |
---|
924 | // found z-grid |
---|
925 | } else if (sscanf(start, "origin %lg %lg %lg", &x0, &y0, &z0) == 3) { |
---|
926 | // found origin |
---|
927 | } else if (sscanf(start, "delta %lg %lg %lg", &ddx, &ddy, &ddz) == 3) { |
---|
928 | // found one of the delta lines |
---|
929 | if (ddx != 0.0) { dx = ddx; } |
---|
930 | else if (ddy != 0.0) { dy = ddy; } |
---|
931 | else if (ddz != 0.0) { dz = ddz; } |
---|
932 | } else if (sscanf(start, "object %d class array type %s rank 0 items %d data follows", &dummy, type, &npts) == 3) { |
---|
933 | if (isrect && (npts != nx*ny*nz)) { |
---|
934 | result.addError("inconsistent data: expected %d points" |
---|
935 | " but found %d points", nx*ny*nz, npts); |
---|
936 | return false; |
---|
937 | } else if (!isrect && (npts != nxy*nz)) { |
---|
938 | result.addError("inconsistent data: expected %d points" |
---|
939 | " but found %d points", nx*ny*nz, npts); |
---|
940 | return false; |
---|
941 | } |
---|
942 | break; |
---|
943 | } else if (sscanf(start, "object %d class array type %s rank 0 times %d data follows", &dummy, type, &npts) == 3) { |
---|
944 | if (npts != nx*ny*nz) { |
---|
945 | result.addError("inconsistent data: expected %d points" |
---|
946 | " but found %d points", nx*ny*nz, npts); |
---|
947 | return false; |
---|
948 | } |
---|
949 | break; |
---|
950 | } |
---|
951 | } |
---|
952 | } |
---|
953 | |
---|
954 | // read data points |
---|
955 | if (fin.eof()) { |
---|
956 | result.error("data not found in stream"); |
---|
957 | return false; |
---|
958 | } |
---|
959 | |
---|
960 | if (isrect) { |
---|
961 | Rappture::Mesh1D xgrid(x0, x0+nx*dx, nx); |
---|
962 | Rappture::Mesh1D ygrid(y0, y0+ny*dy, ny); |
---|
963 | Rappture::Mesh1D zgrid(z0, z0+nz*dz, nz); |
---|
964 | Rappture::FieldRect3D field(xgrid, ygrid, zgrid); |
---|
965 | |
---|
966 | double dval[6]; |
---|
967 | int nread = 0; |
---|
968 | int ix = 0; |
---|
969 | int iy = 0; |
---|
970 | int iz = 0; |
---|
971 | while (!fin.eof() && nread < npts) { |
---|
972 | fin.getline(line,sizeof(line)-1); |
---|
973 | if (fin.fail()) { |
---|
974 | result.error("error reading data points"); |
---|
975 | return false; |
---|
976 | } |
---|
977 | int n = sscanf(line, "%lg %lg %lg %lg %lg %lg", &dval[0], &dval[1], &dval[2], &dval[3], &dval[4], &dval[5]); |
---|
978 | |
---|
979 | for (int p=0; p < n; p++) { |
---|
980 | int nindex = iz*nx*ny + iy*nx + ix; |
---|
981 | field.define(nindex, dval[p]); |
---|
982 | fprintf(stderr,"nindex = %i\tdval[%i] = %lg\n", nindex, p, |
---|
983 | dval[p]); |
---|
984 | fflush(stderr); |
---|
985 | nread++; |
---|
986 | if (++iz >= nz) { |
---|
987 | iz = 0; |
---|
988 | if (++iy >= ny) { |
---|
989 | iy = 0; |
---|
990 | ++ix; |
---|
991 | } |
---|
992 | } |
---|
993 | } |
---|
994 | } |
---|
995 | |
---|
996 | // make sure that we read all of the expected points |
---|
997 | if (nread != nx*ny*nz) { |
---|
998 | result.addError("inconsistent data: expected %d points" |
---|
999 | " but found %d points", nx*ny*nz, npts); |
---|
1000 | return false; |
---|
1001 | } |
---|
1002 | |
---|
1003 | // figure out a good mesh spacing |
---|
1004 | int nsample = 30; |
---|
1005 | dx = field.rangeMax(Rappture::xaxis) - field.rangeMin(Rappture::xaxis); |
---|
1006 | dy = field.rangeMax(Rappture::yaxis) - field.rangeMin(Rappture::yaxis); |
---|
1007 | dz = field.rangeMax(Rappture::zaxis) - field.rangeMin(Rappture::zaxis); |
---|
1008 | double dmin = pow((dx*dy*dz)/(nsample*nsample*nsample), 0.333); |
---|
1009 | |
---|
1010 | nx = (int)ceil(dx/dmin); |
---|
1011 | ny = (int)ceil(dy/dmin); |
---|
1012 | nz = (int)ceil(dz/dmin); |
---|
1013 | |
---|
1014 | #ifndef NV40 |
---|
1015 | // must be an even power of 2 for older cards |
---|
1016 | nx = (int)pow(2.0, ceil(log10((double)nx)/log10(2.0))); |
---|
1017 | ny = (int)pow(2.0, ceil(log10((double)ny)/log10(2.0))); |
---|
1018 | nz = (int)pow(2.0, ceil(log10((double)nz)/log10(2.0))); |
---|
1019 | #endif |
---|
1020 | |
---|
1021 | float *data = new float[4*nx*ny*nz]; |
---|
1022 | |
---|
1023 | double vmin = field.valueMin(); |
---|
1024 | double dv = field.valueMax() - field.valueMin(); |
---|
1025 | if (dv == 0.0) { dv = 1.0; } |
---|
1026 | |
---|
1027 | int ngen = 0; |
---|
1028 | double nzero_min = 0.0; |
---|
1029 | for (iz=0; iz < nz; iz++) { |
---|
1030 | double zval = z0 + iz*dmin; |
---|
1031 | for (int iy=0; iy < ny; iy++) { |
---|
1032 | double yval = y0 + iy*dmin; |
---|
1033 | for (int ix=0; ix < nx; ix++) { |
---|
1034 | double xval = x0 + ix*dmin; |
---|
1035 | double v = field.value(xval,yval,zval); |
---|
1036 | |
---|
1037 | if (v != 0.0f && v < nzero_min) { |
---|
1038 | nzero_min = v; |
---|
1039 | } |
---|
1040 | // scale all values [0-1], -1 => out of bounds |
---|
1041 | v = (isnan(v)) ? -1.0 : (v - vmin)/dv; |
---|
1042 | data[ngen] = v; |
---|
1043 | |
---|
1044 | ngen += 4; |
---|
1045 | } |
---|
1046 | } |
---|
1047 | } |
---|
1048 | |
---|
1049 | // Compute the gradient of this data. BE CAREFUL: center |
---|
1050 | // calculation on each node to avoid skew in either direction. |
---|
1051 | ngen = 0; |
---|
1052 | for (int iz=0; iz < nz; iz++) { |
---|
1053 | for (int iy=0; iy < ny; iy++) { |
---|
1054 | for (int ix=0; ix < nx; ix++) { |
---|
1055 | // gradient in x-direction |
---|
1056 | double valm1 = (ix == 0) ? 0.0 : data[ngen-1]; |
---|
1057 | double valp1 = (ix == nx-1) ? 0.0 : data[ngen+1]; |
---|
1058 | if (valm1 < 0 || valp1 < 0) { |
---|
1059 | data[ngen+1] = 0.0; |
---|
1060 | } else { |
---|
1061 | data[ngen+1] = valp1-valm1; // assume dx=1 |
---|
1062 | //data[ngen+1] = ((valp1-valm1) + 1) * 0.5; // assume dx=1 (ISO) |
---|
1063 | } |
---|
1064 | |
---|
1065 | // gradient in y-direction |
---|
1066 | valm1 = (iy == 0) ? 0.0 : data[ngen-4*nx]; |
---|
1067 | valp1 = (iy == ny-1) ? 0.0 : data[ngen+4*nx]; |
---|
1068 | if (valm1 < 0 || valp1 < 0) { |
---|
1069 | data[ngen+2] = 0.0; |
---|
1070 | } else { |
---|
1071 | data[ngen+2] = valp1-valm1; // assume dy=1 |
---|
1072 | //data[ngen+2] = ((valp1-valm1) + 1) * 0.5; // assume dy=1 (ISO) |
---|
1073 | } |
---|
1074 | |
---|
1075 | // gradient in z-direction |
---|
1076 | valm1 = (iz == 0) ? 0.0 : data[ngen-4*nx*ny]; |
---|
1077 | valp1 = (iz == nz-1) ? 0.0 : data[ngen+4*nx*ny]; |
---|
1078 | if (valm1 < 0 || valp1 < 0) { |
---|
1079 | data[ngen+3] = 0.0; |
---|
1080 | } else { |
---|
1081 | data[ngen+3] = valp1-valm1; // assume dz=1 |
---|
1082 | //data[ngen+3] = ((valp1-valm1) + 1) * 0.5; // assume dz=1 (ISO) |
---|
1083 | } |
---|
1084 | |
---|
1085 | ngen += 4; |
---|
1086 | } |
---|
1087 | } |
---|
1088 | } |
---|
1089 | |
---|
1090 | /* |
---|
1091 | float *cdata = new float[nx*ny*nz]; |
---|
1092 | int ngen = 0; |
---|
1093 | double nzero_min = 0.0; |
---|
1094 | for (int iz=0; iz < nz; iz++) { |
---|
1095 | double zval = z0 + iz*dmin; |
---|
1096 | for (int iy=0; iy < ny; iy++) { |
---|
1097 | double yval = y0 + iy*dmin; |
---|
1098 | for (int ix=0; ix < nx; ix++) { |
---|
1099 | double xval = x0 + ix*dmin; |
---|
1100 | double v = field.value(xval,yval,zval); |
---|
1101 | |
---|
1102 | if (v != 0.0f && v < nzero_min) { |
---|
1103 | nzero_min = v; |
---|
1104 | } |
---|
1105 | |
---|
1106 | // scale all values [0-1], -1 => out of bounds |
---|
1107 | v = (isnan(v)) ? -1.0 : v; |
---|
1108 | |
---|
1109 | cdata[ngen] = v; |
---|
1110 | ++ngen; |
---|
1111 | } |
---|
1112 | } |
---|
1113 | } |
---|
1114 | |
---|
1115 | float* data = computeGradient(cdata, nx, ny, nz, field.valueMin(), |
---|
1116 | field.valueMax()); |
---|
1117 | |
---|
1118 | for (int i=0; i<nx*ny*nz; i++) { |
---|
1119 | fprintf(stderr,"enddata[%i] = %lg\n",i,data[i]); |
---|
1120 | fflush(stderr); |
---|
1121 | } |
---|
1122 | |
---|
1123 | fprintf(stdout,"End Data Stats index = %i\n",index); |
---|
1124 | fprintf(stdout,"nx = %i ny = %i nz = %i\n",nx,ny,nz); |
---|
1125 | fprintf(stdout,"dx = %lg dy = %lg dz = %lg\n",dx,dy,dz); |
---|
1126 | fprintf(stdout,"dataMin = %lg\tdataMax = %lg\tnzero_min = %lg\n", field.valueMin(),field.valueMax(),nzero_min); |
---|
1127 | fflush(stdout); |
---|
1128 | */ |
---|
1129 | |
---|
1130 | Volume *volPtr; |
---|
1131 | volPtr = NanoVis::load_volume(index, nx, ny, nz, 4, data, |
---|
1132 | field.valueMin(), field.valueMax(), nzero_min); |
---|
1133 | volPtr->xAxis.SetRange(field.rangeMin(Rappture::xaxis), |
---|
1134 | field.rangeMax(Rappture::xaxis)); |
---|
1135 | volPtr->yAxis.SetRange(field.rangeMin(Rappture::yaxis), |
---|
1136 | field.rangeMax(Rappture::yaxis)); |
---|
1137 | volPtr->zAxis.SetRange(field.rangeMin(Rappture::zaxis), |
---|
1138 | field.rangeMax(Rappture::zaxis)); |
---|
1139 | volPtr->wAxis.SetRange(field.valueMin(), field.valueMax()); |
---|
1140 | volPtr->update_pending = true; |
---|
1141 | // TBD.. |
---|
1142 | // POINTSET |
---|
1143 | /* |
---|
1144 | PointSet* pset = new PointSet(); |
---|
1145 | pset->initialize(volume[index], (float*) data); |
---|
1146 | pset->setVisible(true); |
---|
1147 | NanoVis::pointSet.push_back(pset); |
---|
1148 | updateColor(pset); |
---|
1149 | NanoVis::volume[index]->pointsetIndex = NanoVis::pointSet.size() - 1; |
---|
1150 | */ |
---|
1151 | |
---|
1152 | delete [] data; |
---|
1153 | |
---|
1154 | } else { |
---|
1155 | Rappture::Mesh1D zgrid(z0, z0+nz*dz, nz); |
---|
1156 | Rappture::FieldPrism3D field(xymesh, zgrid); |
---|
1157 | |
---|
1158 | double dval; |
---|
1159 | int nread = 0; |
---|
1160 | int ixy = 0; |
---|
1161 | int iz = 0; |
---|
1162 | while (!fin.eof() && nread < npts) { |
---|
1163 | fin >> dval; |
---|
1164 | if (fin.fail()) { |
---|
1165 | char mesg[256]; |
---|
1166 | sprintf(mesg,"after %d of %d points: can't read number", |
---|
1167 | nread, npts); |
---|
1168 | result.error(mesg); |
---|
1169 | return false; |
---|
1170 | } else { |
---|
1171 | int nid = nxy*iz + ixy; |
---|
1172 | field.define(nid, dval); |
---|
1173 | |
---|
1174 | nread++; |
---|
1175 | if (++iz >= nz) { |
---|
1176 | iz = 0; |
---|
1177 | ixy++; |
---|
1178 | } |
---|
1179 | } |
---|
1180 | } |
---|
1181 | |
---|
1182 | // make sure that we read all of the expected points |
---|
1183 | if (nread != nxy*nz) { |
---|
1184 | result.addError("inconsistent data: expected %d points" |
---|
1185 | " but found %d points", nx*ny*nz, npts); |
---|
1186 | return false; |
---|
1187 | } |
---|
1188 | |
---|
1189 | // figure out a good mesh spacing |
---|
1190 | int nsample = 30; |
---|
1191 | x0 = field.rangeMin(Rappture::xaxis); |
---|
1192 | dx = field.rangeMax(Rappture::xaxis) - field.rangeMin(Rappture::xaxis); |
---|
1193 | y0 = field.rangeMin(Rappture::yaxis); |
---|
1194 | dy = field.rangeMax(Rappture::yaxis) - field.rangeMin(Rappture::yaxis); |
---|
1195 | z0 = field.rangeMin(Rappture::zaxis); |
---|
1196 | dz = field.rangeMax(Rappture::zaxis) - field.rangeMin(Rappture::zaxis); |
---|
1197 | double dmin = pow((dx*dy*dz)/(nsample*nsample*nsample), 0.333); |
---|
1198 | |
---|
1199 | nx = (int)ceil(dx/dmin); |
---|
1200 | ny = (int)ceil(dy/dmin); |
---|
1201 | nz = (int)ceil(dz/dmin); |
---|
1202 | #ifndef NV40 |
---|
1203 | // must be an even power of 2 for older cards |
---|
1204 | nx = (int)pow(2.0, ceil(log10((double)nx)/log10(2.0))); |
---|
1205 | ny = (int)pow(2.0, ceil(log10((double)ny)/log10(2.0))); |
---|
1206 | nz = (int)pow(2.0, ceil(log10((double)nz)/log10(2.0))); |
---|
1207 | #endif |
---|
1208 | float *data = new float[4*nx*ny*nz]; |
---|
1209 | |
---|
1210 | double vmin = field.valueMin(); |
---|
1211 | double dv = field.valueMax() - field.valueMin(); |
---|
1212 | if (dv == 0.0) { dv = 1.0; } |
---|
1213 | |
---|
1214 | // generate the uniformly sampled data that we need for a volume |
---|
1215 | int ngen = 0; |
---|
1216 | double nzero_min = 0.0; |
---|
1217 | for (iz=0; iz < nz; iz++) { |
---|
1218 | double zval = z0 + iz*dmin; |
---|
1219 | for (int iy=0; iy < ny; iy++) { |
---|
1220 | double yval = y0 + iy*dmin; |
---|
1221 | for (int ix=0; ix < nx; ix++) { |
---|
1222 | double xval = x0 + ix*dmin; |
---|
1223 | double v = field.value(xval,yval,zval); |
---|
1224 | |
---|
1225 | if (v != 0.0f && v < nzero_min) { |
---|
1226 | nzero_min = v; |
---|
1227 | } |
---|
1228 | // scale all values [0-1], -1 => out of bounds |
---|
1229 | v = (isnan(v)) ? -1.0 : (v - vmin)/dv; |
---|
1230 | data[ngen] = v; |
---|
1231 | |
---|
1232 | ngen += 4; |
---|
1233 | } |
---|
1234 | } |
---|
1235 | } |
---|
1236 | |
---|
1237 | // Compute the gradient of this data. BE CAREFUL: center |
---|
1238 | // calculation on each node to avoid skew in either direction. |
---|
1239 | ngen = 0; |
---|
1240 | for (int iz=0; iz < nz; iz++) { |
---|
1241 | for (int iy=0; iy < ny; iy++) { |
---|
1242 | for (int ix=0; ix < nx; ix++) { |
---|
1243 | // gradient in x-direction |
---|
1244 | double valm1 = (ix == 0) ? 0.0 : data[ngen-1]; |
---|
1245 | double valp1 = (ix == nx-1) ? 0.0 : data[ngen+1]; |
---|
1246 | if (valm1 < 0 || valp1 < 0) { |
---|
1247 | data[ngen+1] = 0.0; |
---|
1248 | } else { |
---|
1249 | data[ngen+1] = valp1-valm1; // assume dx=1 |
---|
1250 | //data[ngen+1] = ((valp1-valm1) + 1) * 0.5; // assume dx=1 (ISO) |
---|
1251 | } |
---|
1252 | |
---|
1253 | // gradient in y-direction |
---|
1254 | valm1 = (iy == 0) ? 0.0 : data[ngen-4*nx]; |
---|
1255 | valp1 = (iy == ny-1) ? 0.0 : data[ngen+4*nx]; |
---|
1256 | if (valm1 < 0 || valp1 < 0) { |
---|
1257 | data[ngen+2] = 0.0; |
---|
1258 | } else { |
---|
1259 | data[ngen+2] = valp1-valm1; // assume dy=1 |
---|
1260 | //data[ngen+2] = ((valp1-valm1) + 1) * 0.5; // assume dy=1 (ISO) |
---|
1261 | } |
---|
1262 | |
---|
1263 | // gradient in z-direction |
---|
1264 | valm1 = (iz == 0) ? 0.0 : data[ngen-4*nx*ny]; |
---|
1265 | valp1 = (iz == nz-1) ? 0.0 : data[ngen+4*nx*ny]; |
---|
1266 | if (valm1 < 0 || valp1 < 0) { |
---|
1267 | data[ngen+3] = 0.0; |
---|
1268 | } else { |
---|
1269 | data[ngen+3] = valp1-valm1; // assume dz=1 |
---|
1270 | //data[ngen+3] = ((valp1-valm1) + 1) * 0.5; // assume dz=1 (ISO) |
---|
1271 | } |
---|
1272 | |
---|
1273 | ngen += 4; |
---|
1274 | } |
---|
1275 | } |
---|
1276 | } |
---|
1277 | |
---|
1278 | Volume *volPtr; |
---|
1279 | volPtr = NanoVis::load_volume(index, nx, ny, nz, 4, data, |
---|
1280 | field.valueMin(), field.valueMax(), nzero_min); |
---|
1281 | volPtr->xAxis.SetRange(field.rangeMin(Rappture::xaxis), |
---|
1282 | field.rangeMax(Rappture::xaxis)); |
---|
1283 | volPtr->yAxis.SetRange(field.rangeMin(Rappture::yaxis), |
---|
1284 | field.rangeMax(Rappture::yaxis)); |
---|
1285 | volPtr->zAxis.SetRange(field.rangeMin(Rappture::zaxis), |
---|
1286 | field.rangeMax(Rappture::zaxis)); |
---|
1287 | volPtr->wAxis.SetRange(field.valueMin(), field.valueMax()); |
---|
1288 | volPtr->update_pending = true; |
---|
1289 | // TBD.. |
---|
1290 | // POINTSET |
---|
1291 | /* |
---|
1292 | PointSet* pset = new PointSet(); |
---|
1293 | pset->initialize(volume[index], (float*) data); |
---|
1294 | pset->setVisible(true); |
---|
1295 | NanoVis::pointSet.push_back(pset); |
---|
1296 | updateColor(pset); |
---|
1297 | NanoVis::volume[index]->pointsetIndex = NanoVis::pointSet.size() - 1; |
---|
1298 | */ |
---|
1299 | |
---|
1300 | |
---|
1301 | delete [] data; |
---|
1302 | } |
---|
1303 | |
---|
1304 | // |
---|
1305 | // Center this new volume on the origin. |
---|
1306 | // |
---|
1307 | float dx0 = -0.5; |
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1308 | float dy0 = -0.5*dy/dx; |
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1309 | float dz0 = -0.5*dz/dx; |
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1310 | NanoVis::volume[index]->move(Vector3(dx0, dy0, dz0)); |
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1311 | return true; |
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1312 | } |
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