1 | <!-- ******************************************************** --> |
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2 | <!-- --> |
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3 | <!-- [History] --> |
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4 | <!-- Changed by: Dennis Wright, 27-Nov-2001 --> |
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5 | <!-- Converted to DocBook: Katsuya Amako, Aug-2006 --> |
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6 | <!-- Updates for Qt and HepRApp: Joseph Perl, Dec-2008 --> |
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7 | <!-- --> |
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8 | <!-- ******************************************************** --> |
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9 | |
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10 | |
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11 | <!-- ******************* Section (Level#1) ****************** --> |
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12 | <sect1 id="sect.VisDrv"> |
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13 | <title> |
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14 | The Visualization Drivers |
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15 | </title> |
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16 | |
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17 | <para> |
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18 | As explained in the |
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19 | <!-- !!! xref linkend=""/ or ulink url="" --> |
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20 | Introduction to Visualization |
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21 | <!-- !! /ulink (remove this tag for xref) --> |
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22 | , Geant4 provides many different choices of |
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23 | visualization systems. Features and notes on each driver are |
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24 | briefly described here along with links to detailed web pages for |
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25 | the various drivers. |
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26 | </para> |
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27 | |
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28 | <para> |
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29 | Details are given below for: |
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30 | |
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31 | <itemizedlist spacing="compact"> |
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32 | <listitem><para> |
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33 | <xref linkend="sect.VisDrv.OpenGL" /> |
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34 | OpenGL |
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35 | </para></listitem> |
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36 | <listitem><para> |
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37 | <xref linkend="sect.VisDrv.Qt" /> |
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38 | Qt |
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39 | </para></listitem> |
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40 | <listitem><para> |
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41 | <xref linkend="sect.VisDrv.OpenInv" /> |
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42 | OpenInventor |
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43 | </para></listitem> |
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44 | <listitem><para> |
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45 | <xref linkend="sect.VisDrv.HepRep" /> |
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46 | HepRepFile |
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47 | </para></listitem> |
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48 | <listitem><para> |
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49 | <xref linkend="sect.VisDrv.HepRepXML" /> |
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50 | HepRepXML |
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51 | </para></listitem> |
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52 | <listitem><para> |
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53 | <xref linkend="sect.VisDrv.DAWN" /> |
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54 | DAWN |
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55 | </para></listitem> |
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56 | <listitem><para> |
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57 | <xref linkend="sect.VisDrv.VRML" /> |
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58 | VRML |
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59 | </para></listitem> |
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60 | <listitem><para> |
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61 | <xref linkend="sect.VisDrv.RayTrc" /> |
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62 | RayTracer |
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63 | </para></listitem> |
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64 | <listitem><para> |
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65 | <xref linkend="sect.VisDrv.DetTree" /> |
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66 | ASCIITree |
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67 | </para></listitem> |
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68 | <listitem><para> |
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69 | <xref linkend="sect.VisDrv.GAGTree" /> |
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70 | GAGTree |
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71 | </para></listitem> |
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72 | <listitem><para> |
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73 | <xref linkend="sect.VisDrv.XMLTree" /> |
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74 | XMLTree |
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75 | </para></listitem> |
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76 | </itemizedlist> |
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77 | </para> |
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78 | |
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79 | |
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80 | <!-- ******************* Section (Level#2) ****************** --> |
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81 | <sect2 id="sect.VisDrv.Avail"> |
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82 | <title> |
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83 | Availability of drivers on the supported systems |
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84 | </title> |
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85 | |
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86 | <para> |
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87 | <xref linkend="table.VisDrv_1" /> lists required graphics systems |
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88 | and supported platforms for the various visualization drivers |
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89 | |
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90 | <table id="table.VisDrv_1"> |
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91 | <title> |
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92 | Required graphics systems and supported platforms for the various |
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93 | visualization drivers. |
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94 | </title> |
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95 | |
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96 | <tgroup cols="3"> |
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97 | <tbody> |
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98 | <row> |
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99 | <entry> |
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100 | <emphasis role="bold">Driver</emphasis> |
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101 | </entry> |
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102 | <entry> |
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103 | <emphasis role="bold">Required Graphics System</emphasis> |
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104 | </entry> |
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105 | <entry> |
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106 | <emphasis role="bold">Platform</emphasis> |
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107 | </entry> |
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108 | </row> |
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109 | <row> |
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110 | <entry> |
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111 | OpenGL-Xlib |
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112 | </entry> |
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113 | <entry> |
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114 | OpenGL |
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115 | </entry> |
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116 | <entry> |
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117 | Linux, UNIX, Mac with Xlib |
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118 | </entry> |
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119 | </row> |
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120 | <row> |
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121 | <entry> |
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122 | OpenGL-Motif |
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123 | </entry> |
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124 | <entry> |
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125 | OpenGL |
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126 | </entry> |
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127 | <entry> |
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128 | Linux, UNIX, Mac with Motif |
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129 | </entry> |
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130 | </row> |
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131 | <row> |
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132 | <entry> |
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133 | OpenGL-Win32 |
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134 | </entry> |
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135 | <entry> |
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136 | OpenGL |
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137 | </entry> |
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138 | <entry> |
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139 | Windows |
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140 | </entry> |
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141 | </row> |
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142 | <row> |
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143 | <entry> |
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144 | Qt |
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145 | </entry> |
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146 | <entry> |
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147 | Qt, OpenGL |
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148 | </entry> |
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149 | <entry> |
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150 | Linux, UNIX, Mac, Windows |
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151 | </entry> |
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152 | </row> |
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153 | <row> |
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154 | <entry> |
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155 | OpenInventor-X |
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156 | </entry> |
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157 | <entry> |
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158 | OpenInventor, OpenGL |
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159 | </entry> |
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160 | <entry> |
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161 | Linux, UNIX, Mac with Xlib or Motif |
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162 | </entry> |
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163 | </row> |
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164 | <row> |
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165 | <entry> |
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166 | OpenInventor-Win32 |
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167 | </entry> |
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168 | <entry> |
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169 | OpenInventor, OpenGL |
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170 | </entry> |
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171 | <entry> |
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172 | Windows |
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173 | </entry> |
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174 | </row> |
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175 | <row> |
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176 | <entry> |
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177 | HepRep |
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178 | </entry> |
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179 | <entry> |
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180 | HepRApp, FRED or WIRED4 HepRep Browser |
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181 | </entry> |
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182 | <entry> |
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183 | Linux, UNIX, Mac, Windows |
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184 | </entry> |
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185 | </row> |
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186 | <row> |
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187 | <entry> |
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188 | DAWNFILE |
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189 | </entry> |
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190 | <entry> |
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191 | Fukui Renderer DAWN |
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192 | </entry> |
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193 | <entry> |
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194 | Linux, UNIX, Mac, Windows |
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195 | </entry> |
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196 | </row> |
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197 | <row> |
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198 | <entry> |
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199 | DAWN-Network |
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200 | </entry> |
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201 | <entry> |
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202 | Fukui Renderer DAWN |
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203 | </entry> |
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204 | <entry> |
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205 | Linux, UNIX |
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206 | </entry> |
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207 | </row> |
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208 | <row> |
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209 | <entry> |
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210 | VRMLFILE |
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211 | </entry> |
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212 | <entry> |
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213 | any VRML viewer |
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214 | </entry> |
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215 | <entry> |
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216 | Linux, UNIX, Mac, Windows |
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217 | </entry> |
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218 | </row> |
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219 | <row> |
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220 | <entry> |
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221 | VRML-Network |
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222 | </entry> |
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223 | <entry> |
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224 | any network-enabled VRML viewer |
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225 | </entry> |
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226 | <entry> |
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227 | Linux, UNIX |
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228 | </entry> |
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229 | </row> |
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230 | <row> |
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231 | <entry> |
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232 | RayTracer |
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233 | </entry> |
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234 | <entry> |
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235 | any JPEG viewer |
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236 | </entry> |
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237 | <entry> |
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238 | Linux, UNIX, Mac, Windows |
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239 | </entry> |
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240 | </row> |
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241 | <row> |
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242 | <entry> |
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243 | ASCIITree |
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244 | </entry> |
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245 | <entry> |
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246 | none |
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247 | </entry> |
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248 | <entry> |
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249 | Linux, UNIX, Mac, Windows |
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250 | </entry> |
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251 | </row> |
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252 | <row> |
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253 | <entry> |
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254 | GAGTree |
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255 | </entry> |
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256 | <entry> |
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257 | GAG |
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258 | </entry> |
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259 | <entry> |
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260 | Linux, UNIX, Mac, Windows |
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261 | </entry> |
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262 | </row> |
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263 | <row> |
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264 | <entry> |
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265 | XMLTree |
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266 | </entry> |
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267 | <entry> |
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268 | any XML viewer |
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269 | </entry> |
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270 | <entry> |
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271 | Linux, UNIX, Mac, Windows |
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272 | </entry> |
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273 | </row> |
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274 | </tbody> |
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275 | </tgroup> |
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276 | </table> |
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277 | </para> |
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278 | |
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279 | </sect2> |
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280 | |
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281 | |
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282 | <!-- ******************* Section (Level#2) ****************** --> |
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283 | <sect2 id="sect.VisDrv.OpenGL"> |
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284 | <title> |
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285 | OpenGL |
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286 | </title> |
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287 | |
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288 | <para> |
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289 | These drivers have been developed by John Allison and Andrew |
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290 | Walkden (University of Manchester). It is an interface to the de |
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291 | facto standard 3D graphics library, OpenGL. It is well suited for |
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292 | real-time fast visualization and demonstration. Fast visualization |
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293 | is realized with hardware acceleration, reuse of shapes stored in a |
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294 | display list, etc. NURBS visualization is also supported. |
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295 | </para> |
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296 | |
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297 | <para> |
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298 | Several versions of the OpenGL drivers are prepared. Versions |
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299 | for Xlib, Motif and Win32 platforms are available by default. For |
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300 | each version, there are two modes: immediate mode and stored mode. |
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301 | The former has no limitation on data size, and the latter is fast |
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302 | for visualizing large data repetitively, and so is suitable for |
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303 | animation. |
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304 | </para> |
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305 | |
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306 | <para> |
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307 | Output can be exported to EPS (both vector and pixel graphics) |
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308 | using vis/ogl/printEPS. |
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309 | </para> |
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310 | |
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311 | <para> |
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312 | If you don't have Motif or Qt, all control is done from Geant4 |
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313 | commands: |
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314 | |
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315 | <?soft-pagebreak ?> |
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316 | <informalexample> |
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317 | <programlisting> |
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318 | /vis/open OGLIX |
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319 | /vis/viewer/set/viewpointThetaPhi 70 20 |
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320 | /vis/viewer/zoom 2 |
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321 | etc. |
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322 | </programlisting> |
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323 | </informalexample> |
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324 | </para> |
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325 | |
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326 | <para> |
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327 | But if you have Motif libraries, you can control Geant4 from Motif |
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328 | widgets: |
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329 | |
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330 | <informalexample> |
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331 | <programlisting> |
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332 | /vis/open OGLIXm |
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333 | </programlisting> |
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334 | </informalexample> |
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335 | </para> |
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336 | |
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337 | <para> |
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338 | If you have Qt, see the Qt section below. |
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339 | </para> |
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340 | |
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341 | <para> |
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342 | The OpenGL driver added Smooth shading and Transparency since |
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343 | Geant4 release 8.0. |
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344 | </para> |
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345 | |
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346 | <para> |
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347 | <emphasis role="bold">Further information (OpenGL and Mesa):</emphasis> |
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348 | |
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349 | <itemizedlist spacing="compact"> |
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350 | <listitem><para> |
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351 | <ulink url="http://www.opengl.org/"> |
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352 | http://www.opengl.org/ |
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353 | </ulink> |
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354 | </para></listitem> |
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355 | <listitem><para> |
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356 | <ulink url="http://www.mesa3d.org"> |
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357 | http://www.mesa3d.org |
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358 | </ulink> |
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359 | </para></listitem> |
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360 | <listitem><para> |
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361 | <ulink url="http://geant4.slac.stanford.edu/Presentations/vis/G4OpenGLTutorial/G4OpenGLTutorial.html"> |
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362 | Geant4 Visualization Tutorial |
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363 | </ulink> |
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364 | using the OpenGL Graphics System |
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365 | </para></listitem> |
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366 | </itemizedlist> |
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367 | </para> |
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368 | |
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369 | </sect2> |
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370 | |
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371 | |
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372 | <!-- ******************* Section (Level#2) ****************** --> |
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373 | <sect2 id="sect.VisDrv.Qt"> |
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374 | <title> |
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375 | Qt |
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376 | </title> |
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377 | |
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378 | <para> |
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379 | This driver has been developed by Laurent Garnier (IN2P3, LAL Orsay). |
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380 | It is an interface to the powerful application framework, Qt, now free on most |
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381 | platforms. This driver also requires the OpenGL library. |
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382 | </para><para> |
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383 | The Qt driver is well suited for real-time fast visualization and demonstration. |
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384 | Fast visualization is realized with hardware acceleration, reuse of shapes stored in a |
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385 | display list, etc. NURBS visualization is also supported. All OpenGL |
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386 | features are implemented in the Qt driver, but one also gets mouse |
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387 | control of rotation/translation/zoom, the ability to save your scene in many formats |
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388 | (both vector and pixel graphics) and an easy interface for making movies. |
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389 | </para><para> |
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390 | Two display modes are available: immediate mode and stored mode. |
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391 | The former has no limitation on data size, and the latter is fast |
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392 | for visualizing large data repetitively, and so is suitable for |
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393 | animation. |
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394 | </para> |
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395 | |
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396 | <para> |
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397 | To see the visualization window : |
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398 | |
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399 | <?soft-pagebreak ?> |
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400 | <informalexample> |
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401 | <programlisting> |
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402 | /vis/open OGLSQt (for Stored mode) |
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403 | or |
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404 | /vis/open OGLIQt (for Immediate mode) |
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405 | </programlisting> |
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406 | </informalexample> |
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407 | </para> |
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408 | |
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409 | <para> |
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410 | <emphasis role="bold">Further information (Qt):</emphasis> |
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411 | <itemizedlist spacing="compact"> |
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412 | <listitem><para> |
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413 | <ulink url="http://trolltech.com/"> |
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414 | Qt |
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415 | </ulink> |
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416 | </para></listitem> |
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417 | <listitem><para> |
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418 | <ulink url="http://users.lal.in2p3.fr/garnier/G4QtTutorial.html"> |
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419 | Geant4 Visualization Tutorial |
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420 | </ulink> |
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421 | using the Qt Driver |
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422 | </para></listitem> |
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423 | </itemizedlist> |
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424 | </para> |
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425 | </sect2> |
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426 | |
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427 | |
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428 | <!-- ******************* Section (Level#2) ****************** --> |
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429 | <sect2 id="sect.VisDrv.OpenInv"> |
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430 | <title> |
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431 | OpenInventor |
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432 | </title> |
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433 | |
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434 | <para> |
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435 | These drivers were developed by Jeff Kallenbach (FNAL) and Guy |
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436 | Barrand (IN2P3) based on the |
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437 | <ulink url="http://www-pat.fnal.gov/graphics/HEPVis/www"> |
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438 | Hepvis class library |
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439 | </ulink> |
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440 | originated by Joe Boudreau (Pittsburgh University). The |
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441 | OpenInventor drivers and the Hepvis class library are based on the |
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442 | well-established OpenInventor technology for scientific |
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443 | visualization. They have high extendibility. They support high |
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444 | interactivity, e.g., attribute e diting of picked objects. Some |
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445 | OpenInventor viewers support "stereoscopic" effects. |
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446 | </para> |
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447 | |
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448 | <para> |
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449 | It is also possible to save a visualized 3D scene as an |
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450 | OpenInventor-formatted file, and re-visualize the scene |
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451 | afterwards. |
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452 | </para> |
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453 | |
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454 | <para> |
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455 | Because it is connected directly to the Geant4 kernel, using |
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456 | same language as that kernel (C++), OpenInventor systems can have |
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457 | direct access to Geant4 data (geometry, trajectories, etc.). |
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458 | </para> |
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459 | |
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460 | <para> |
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461 | Because OpenInventor uses OpenGL for rendering, it supports |
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462 | lighting and transparency. |
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463 | </para> |
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464 | |
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465 | <para> |
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466 | OpenInventor provides thumbwheel control to rotate and zoom. |
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467 | </para> |
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468 | |
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469 | <para> |
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470 | OpenInventor supports picking to ask about data. [Control |
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471 | Clicking] on a volume turns on rendering of that volume's |
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472 | daughters. [Shift Clicking] a daughter turns that rendering off: If |
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473 | modeling opaque solid, effect is like opening a box to look |
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474 | inside. |
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475 | </para> |
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476 | |
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477 | <para> |
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478 | <emphasis role="bold">Further information (HEPVis and OpenScientist):</emphasis> |
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479 | |
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480 | <itemizedlist spacing="compact"> |
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481 | <listitem><para> |
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482 | Geant4 Inventor Visualization with OpenScientist |
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483 | <ulink url="http://openscientist.lal.in2p3.fr/v15r0/html/osc_g4_vis_ui.html"> |
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484 | http://openscientist.lal.in2p3.fr/v15r0/html/osc_g4_vis_ui.html |
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485 | </ulink> |
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486 | </para></listitem> |
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487 | <listitem><para> |
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488 | Overall OpenScientist Home |
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489 | <ulink url="http://openscientist.lal.in2p3.fr/v15r0/html/osc_g4_vis_ui.html"> |
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490 | http://openscientist.lal.in2p3.fr/v15r0/html/osc_g4_vis_ui.html |
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491 | </ulink> |
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492 | </para></listitem> |
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493 | <listitem><para> |
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494 | HEPVis |
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495 | <ulink url="http://www-pat.fnal.gov/graphics/HEPVis/www"> |
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496 | http://www-pat.fnal.gov/graphics/HEPVis/www |
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497 | </ulink> |
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498 | </para></listitem> |
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499 | </itemizedlist> |
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500 | </para> |
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501 | |
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502 | <para> |
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503 | <emphasis role="bold">Further information (OpenInventor):</emphasis> |
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504 | |
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505 | <itemizedlist spacing="compact"> |
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506 | <listitem><para> |
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507 | <ulink url="http://oss.sgi.com/projects/inventor"> |
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508 | http://oss.sgi.com/projects/inventor |
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509 | </ulink> |
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510 | </para></listitem> |
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511 | <listitem><para> |
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512 | Josie Wernecke, "The Inventor Mentor", Addison Wesley |
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513 | (ISBN 0-201-62495-8) |
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514 | </para></listitem> |
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515 | <listitem><para> |
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516 | Josie Wernecke, "The Inventor Toolmaker", Addison Wesley |
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517 | (ISBN 0-201-62493-1) |
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518 | </para></listitem> |
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519 | <listitem><para> |
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520 | "The Open Inventor C++ Reference Manual", Addison Wesley |
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521 | (ISBN 0-201-62491-5) |
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522 | </para></listitem> |
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523 | </itemizedlist> |
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524 | </para> |
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525 | |
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526 | </sect2> |
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527 | |
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528 | |
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529 | <!-- ******************* Section (Level#2) ****************** --> |
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530 | <sect2 id="sect.VisDrv.HepRep"> |
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531 | <title> |
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532 | HepRepFile |
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533 | </title> |
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534 | |
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535 | <para> |
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536 | The HepRepFile driver creates a HepRep XML file in the HepRep1 |
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537 | format suitable for viewing with the |
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538 | <ulink url="http://www.slac.stanford.edu/~perl/HepRApp/"> |
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539 | HepRApp</ulink> HepRep Browser. |
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540 | </para> |
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541 | |
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542 | <para> |
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543 | The HepRep graphics format is further described at |
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544 | <ulink url="http://www.slac.stanford.edu/~perl/heprep"> |
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545 | http://www.slac.stanford.edu/~perl/heprep |
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546 | </ulink> |
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547 | . |
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548 | </para> |
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549 | |
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550 | <para> |
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551 | To write just the detector geometry to this file, use the |
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552 | command: |
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553 | |
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554 | <informalexample> |
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555 | <programlisting> |
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556 | /vis/viewer/flush |
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557 | </programlisting> |
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558 | </informalexample> |
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559 | </para> |
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560 | |
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561 | <para> |
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562 | Or, to also include trajectories and hits (after the appropriate |
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563 | /vis/viewer/add/trajectories or /vis/viewer/add/hits commands), |
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564 | just issue: |
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565 | |
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566 | <informalexample> |
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567 | <programlisting> |
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568 | /run/beamOn 1 |
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569 | </programlisting> |
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570 | </informalexample> |
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571 | </para> |
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572 | |
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573 | <para> |
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574 | HepRepFile will write a file called G4Data0.heprep to the |
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575 | current directory. Each subsequent file will have a file name like |
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576 | G4Data1.heprep, G4Data2.heprep, etc. |
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577 | </para> |
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578 | |
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579 | <para> |
---|
580 | View the file using the HepRApp HepRep Browser, available from: |
---|
581 | </para> |
---|
582 | <para> |
---|
583 | <ulink url="http://www.slac.stanford.edu/~perl/HepRApp/"> |
---|
584 | http://www.slac.stanford.edu/~perl/HepRApp/ |
---|
585 | </ulink> |
---|
586 | . |
---|
587 | </para> |
---|
588 | |
---|
589 | <para> |
---|
590 | HepRApp allows you to pick on volumes, trajectories and hits to |
---|
591 | find out their associated HepRep Attributes, such as volume name, |
---|
592 | particle ID, momentum, etc. These same attributes can be displayed |
---|
593 | as labels on the relevant objects, and you can make visibility cuts |
---|
594 | based on these attributes ("show me only the photons", or "omit any |
---|
595 | volumes made of iron"). |
---|
596 | </para> |
---|
597 | |
---|
598 | <para> |
---|
599 | HepRApp can read heprep files in zipped format as well as |
---|
600 | unzipped, so you can save space by applying gzip to the heprep |
---|
601 | file. This will reduce the file to about five percent of its |
---|
602 | original size. |
---|
603 | </para> |
---|
604 | |
---|
605 | <para> |
---|
606 | Several environment variables are available to override some of |
---|
607 | HepRepFile's defaults |
---|
608 | |
---|
609 | <itemizedlist spacing="compact"> |
---|
610 | <listitem><para> |
---|
611 | You can specify a different directory for the heprep output |
---|
612 | files by setting the environment variable G4HEPREPFILE_DIR, as in: |
---|
613 | |
---|
614 | <informalexample> |
---|
615 | <programlisting> |
---|
616 | export G4HEPREPFILE_DIR=someOtherDir/someOtherSubDir |
---|
617 | </programlisting> |
---|
618 | </informalexample> |
---|
619 | </para></listitem> |
---|
620 | <listitem><para> |
---|
621 | You can specify a different file name (the part before the |
---|
622 | number) by setting the environment variable G4HEPREPFILE_NAME, as in: |
---|
623 | |
---|
624 | <informalexample> |
---|
625 | <programlisting> |
---|
626 | export G4HEPREPFILE_NAME=myFileName |
---|
627 | </programlisting> |
---|
628 | </informalexample> |
---|
629 | |
---|
630 | which will produce files named myFileName0.heprep, |
---|
631 | myFileName1.heprep, etc. |
---|
632 | </para></listitem> |
---|
633 | <listitem><para> |
---|
634 | You can specify that each file should overwrite the previous |
---|
635 | file (always rewriting to the same file name) by setting the |
---|
636 | environment variable G4HEPREPFILE_OVERWRITE, as in: |
---|
637 | |
---|
638 | <informalexample> |
---|
639 | <programlisting> |
---|
640 | export G4HEPREPFILE_OVERWRITE=1 |
---|
641 | </programlisting> |
---|
642 | </informalexample> |
---|
643 | |
---|
644 | This may be useful in some automated applications where you always |
---|
645 | want to see the latest output file in the same location. |
---|
646 | </para></listitem> |
---|
647 | </itemizedlist> |
---|
648 | |
---|
649 | <?soft-pagebreak ?> |
---|
650 | <itemizedlist> |
---|
651 | <listitem><para> |
---|
652 | Geant4 visualization supports a concept called "culling", by |
---|
653 | which certain parts of the detector can be made invisible. Since |
---|
654 | you may want to control visibility from the HepRep browser, turning |
---|
655 | on visibility of detector parts that had defaulted to be invisible, |
---|
656 | the HepRepFile driver does not omit these invisible detector parts |
---|
657 | from the HepRep file. But for very large files, if you know that |
---|
658 | you will never want to make these parts visible, you can choose to |
---|
659 | have them left entirely out of the file. Set the environment |
---|
660 | variable G4HEPREPFILE_CULL, as in: |
---|
661 | |
---|
662 | <informalexample> |
---|
663 | <programlisting> |
---|
664 | export G4HEPREPFILE_CULL=1 |
---|
665 | </programlisting> |
---|
666 | </informalexample> |
---|
667 | </para></listitem> |
---|
668 | </itemizedlist> |
---|
669 | </para> |
---|
670 | |
---|
671 | <para> |
---|
672 | <emphasis role="bold">Further information:</emphasis> |
---|
673 | |
---|
674 | <itemizedlist spacing="compact"> |
---|
675 | <listitem><para> |
---|
676 | HepRApp Users Home Page: |
---|
677 | <para> |
---|
678 | <ulink url="http://www.slac.stanford.edu/~perl/HepRApp/"> |
---|
679 | http://www.slac.stanford.edu/~perl/HepRApp/ |
---|
680 | </ulink> |
---|
681 | . |
---|
682 | </para> |
---|
683 | </para></listitem> |
---|
684 | <listitem><para> |
---|
685 | HepRep graphics format: |
---|
686 | <para> |
---|
687 | <ulink url="http://www.slac.stanford.edu/~perl/heprep"> |
---|
688 | http://www.slac.stanford.edu/~perl/heprep |
---|
689 | </ulink> |
---|
690 | </para> |
---|
691 | </para></listitem> |
---|
692 | <listitem><para> |
---|
693 | Geant4 Visualization Tutorial using the HepRApp HepRep Browser |
---|
694 | <para> |
---|
695 | <ulink url="http://geant4.slac.stanford.edu/Presentations/vis/G4HepRAppTutorial/G4HepRAppTutorial.html"> |
---|
696 | http://geant4.slac.stanford.edu/Presentations/vis/G4HepRAppTutorial/G4HepRAppTutorial.html |
---|
697 | </ulink> |
---|
698 | </para> |
---|
699 | </para></listitem> |
---|
700 | </itemizedlist> |
---|
701 | </para> |
---|
702 | |
---|
703 | </sect2> |
---|
704 | |
---|
705 | |
---|
706 | <!-- ******************* Section (Level#2) ****************** --> |
---|
707 | <sect2 id="sect.VisDrv.HepRepXML"> |
---|
708 | <title> |
---|
709 | HepRepXML |
---|
710 | </title> |
---|
711 | |
---|
712 | <para> |
---|
713 | The HepRepXML driver creates a HepRep file in the HepRep2 format |
---|
714 | suitable for viewing with the |
---|
715 | <ulink url="http://wired.freehep.org/index.html"> |
---|
716 | WIRED4 |
---|
717 | </ulink> |
---|
718 | Plugin to the JAS3 Analysis System or the |
---|
719 | <ulink url="http://www.fisica.uniud.it/~glast/FRED/"> |
---|
720 | FRED |
---|
721 | </ulink> |
---|
722 | event display. |
---|
723 | </para> |
---|
724 | |
---|
725 | <para> |
---|
726 | This driver can write both Binary HepRep (.bheprep) and XML |
---|
727 | HepRep (.heprep) files. Binary HepRep files are a one-to-one |
---|
728 | translation of XML HepRep files, but they are considerably shorter |
---|
729 | and faster to parse by a HepRepViewer such as WIRED 4. |
---|
730 | </para> |
---|
731 | |
---|
732 | <para> |
---|
733 | Both Binary HepRep and XML HepRep can be compressed using the |
---|
734 | standard zlib library if linked into Geant4 using G4LIB_USE_ZLIB. |
---|
735 | If a standard zlib is not available (WIN32-VC for instance) you |
---|
736 | should also set G4LIB_BUILD_ZLIB to build G4zlib included with |
---|
737 | Geant4. |
---|
738 | </para> |
---|
739 | |
---|
740 | <para> |
---|
741 | HepRep files (Binary and XML) can contain multiple HepRep |
---|
742 | events/geometries. If the file contains more than one HepRep it is |
---|
743 | not strictly XML anymore. Files can be written in .heprep.zip, |
---|
744 | .heprep.gz or .heprep format and their binary versions |
---|
745 | .bheprep.zip, .bheprep.gz or .bheprep. |
---|
746 | </para> |
---|
747 | |
---|
748 | <para> |
---|
749 | The .heprep.zip is the default for file output, the .heprep is |
---|
750 | the default for stdout and stderr. |
---|
751 | </para> |
---|
752 | |
---|
753 | <para> |
---|
754 | (Optional) To set the filename with a particular extension such |
---|
755 | as: .heprep.zip, .heprep.gz, .heprep, .bheprep.zip, .bheprep.gz or |
---|
756 | .bheprep use for instance: |
---|
757 | |
---|
758 | <informalexample> |
---|
759 | <programlisting> |
---|
760 | /vis/scene/create filename.bheprep.zip |
---|
761 | </programlisting> |
---|
762 | </informalexample> |
---|
763 | </para> |
---|
764 | |
---|
765 | <para> |
---|
766 | (Optional) To create separate files for each event, you can set |
---|
767 | a suffix such as "-0001" to start writing files from |
---|
768 | filename-0001.bheprep.zip to filename-9999.bheprep.zip (or up), |
---|
769 | while "-55-sub" will start write files filename-55-sub.bheprep.zip |
---|
770 | to filename-99-sub.bheprep.zip (or up). |
---|
771 | |
---|
772 | <informalexample> |
---|
773 | <programlisting> |
---|
774 | /vis/heprep/setEventNumberSuffix -0001 |
---|
775 | </programlisting> |
---|
776 | </informalexample> |
---|
777 | </para> |
---|
778 | |
---|
779 | <para> |
---|
780 | (Note: suffix has to contain at least one digit) |
---|
781 | </para> |
---|
782 | |
---|
783 | <para> |
---|
784 | (Optional) To route the HepRep XML output to stdout (or stderr), |
---|
785 | by default uncompressed, use: |
---|
786 | |
---|
787 | <informalexample> |
---|
788 | <programlisting> |
---|
789 | /vis/scene/create stdout |
---|
790 | </programlisting> |
---|
791 | </informalexample> |
---|
792 | </para> |
---|
793 | |
---|
794 | <para> |
---|
795 | (Optional) To add attributes to each point on a trajectory, use: |
---|
796 | |
---|
797 | <informalexample> |
---|
798 | <programlisting> |
---|
799 | /vis/heprep/addPointAttributes 1 |
---|
800 | </programlisting> |
---|
801 | </informalexample> |
---|
802 | </para> |
---|
803 | |
---|
804 | <para> |
---|
805 | Be aware that this may increase the size of the output |
---|
806 | dramatically. |
---|
807 | </para> |
---|
808 | |
---|
809 | <para> |
---|
810 | (Optional) You may use the commands: |
---|
811 | |
---|
812 | <informalexample> |
---|
813 | <programlisting> |
---|
814 | /vis/viewer/zoom to set an initial zoom factor |
---|
815 | |
---|
816 | /vis/viewer/set/viewpointThetaPhi to set an initial view point |
---|
817 | |
---|
818 | /vis/heprep/setCoordinateSystem uvw to change the coordinate system, where uvw |
---|
819 | can be "xyz", "zxy", ... |
---|
820 | </programlisting> |
---|
821 | </informalexample> |
---|
822 | </para> |
---|
823 | |
---|
824 | <para> |
---|
825 | (Optional) You may decide to write .zip files with events and |
---|
826 | geometry separated (but linked). This results in a smaller zip |
---|
827 | file, as the geometry is only written once. Use the command: |
---|
828 | |
---|
829 | <informalexample> |
---|
830 | <programlisting> |
---|
831 | /vis/heprep/appendGeometry false |
---|
832 | </programlisting> |
---|
833 | </informalexample> |
---|
834 | </para> |
---|
835 | |
---|
836 | <para> |
---|
837 | (Optional) To close the file, remove the SceneHandler, use: |
---|
838 | |
---|
839 | <informalexample> |
---|
840 | <programlisting> |
---|
841 | /vis/sceneHandler/remove scene-handler-0 |
---|
842 | </programlisting> |
---|
843 | </informalexample> |
---|
844 | </para> |
---|
845 | |
---|
846 | <para> |
---|
847 | Limitations: Only one SceneHandler can exist at any time, |
---|
848 | connected to a single Viewer. Since the HepRep format is a model |
---|
849 | rather than a view this is not a real limitation. In WIRED 4 you |
---|
850 | can create as many views (SceneHandlers) as you like. |
---|
851 | </para> |
---|
852 | |
---|
853 | <para> |
---|
854 | <emphasis role="bold">Further information:</emphasis> |
---|
855 | |
---|
856 | <itemizedlist spacing="compact"> |
---|
857 | <listitem><para> |
---|
858 | <ulink url="http://wired.freehep.org/index.html"> |
---|
859 | WIRED4</ulink> Plugin to the JAS3 Analysis System |
---|
860 | </para></listitem> |
---|
861 | <listitem><para> |
---|
862 | <ulink url="http://www.fisica.uniud.it/~glast/FRED/"> |
---|
863 | FRED</ulink> event display |
---|
864 | </para></listitem> |
---|
865 | <listitem><para> |
---|
866 | HepRep graphics format: |
---|
867 | <para> |
---|
868 | <ulink url="http://www.slac.stanford.edu/~perl/heprep"> |
---|
869 | http://www.slac.stanford.edu/~perl/heprep |
---|
870 | </ulink> |
---|
871 | </para> |
---|
872 | </para></listitem> |
---|
873 | </itemizedlist> |
---|
874 | </para> |
---|
875 | |
---|
876 | </sect2> |
---|
877 | |
---|
878 | |
---|
879 | <!-- ******************* Section (Level#2) ****************** --> |
---|
880 | <sect2 id="sect.VisDrv.DAWN"> |
---|
881 | <title> |
---|
882 | DAWN |
---|
883 | </title> |
---|
884 | |
---|
885 | <para> |
---|
886 | The DAWN drivers are interfaces to |
---|
887 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAWN.html"> |
---|
888 | Fukui Renderer DAWN</ulink>, which has been developed by Satoshi Tanaka, |
---|
889 | Minato Kawaguti et al (Fukui University). It is a vectorized 3D |
---|
890 | PostScript processor, and so well suited to prepare technical high |
---|
891 | quality outputs for presentation and/or documentation. It is also |
---|
892 | useful for precise debugging of detector geometry. Remote |
---|
893 | visualization, off-line re-visualization, cut view, and many other |
---|
894 | useful functions of detector simulation are supported. A DAWN |
---|
895 | process is automatically invoked as a co-process of Geant4 when |
---|
896 | visualization is performed, and 3D data are passed with |
---|
897 | inter-process communication, via a file, or the TCP/IP socket. |
---|
898 | </para> |
---|
899 | |
---|
900 | <para> |
---|
901 | When Geant4 Visualization is performed with the DAWN driver, the |
---|
902 | visualized view is automatically saved to a file named |
---|
903 | <literal>g4.eps</literal> in the current directory, which describes a |
---|
904 | vectorized (Encapsulated) PostScript data of the view. |
---|
905 | </para> |
---|
906 | |
---|
907 | <para> |
---|
908 | There are two kinds of DAWN drivers, the DAWNFILE driver and the |
---|
909 | DAWN-Network driver. The DAWNFILE driver is usually recommended, |
---|
910 | since it is faster and safer in the sense that it is not affected |
---|
911 | by network conditions. |
---|
912 | </para> |
---|
913 | |
---|
914 | <para> |
---|
915 | The DAWNFILE driver sends 3D data to DAWN via an intermediate |
---|
916 | file, named <literal>g4.prim</literal> in the current directory. The file |
---|
917 | <literal>g4.prim</literal> can be re-visualized later without the help of |
---|
918 | Geant4. This is done by invoking DAWN by hand: |
---|
919 | |
---|
920 | <informalexample> |
---|
921 | <programlisting> |
---|
922 | % dawn g4.prim |
---|
923 | </programlisting> |
---|
924 | </informalexample> |
---|
925 | </para> |
---|
926 | |
---|
927 | <para> |
---|
928 | DAWN files can also serve as input to two additional programs: |
---|
929 | |
---|
930 | <itemizedlist spacing="compact"> |
---|
931 | <listitem><para> |
---|
932 | A standalone program, DAWNCUT, can perform a planar cut on a |
---|
933 | DAWN image. DAWNCUT takes as input a .prim file and some cut |
---|
934 | parameters. Its output is a new .prim file to which the cut has |
---|
935 | been applied. |
---|
936 | </para></listitem> |
---|
937 | <listitem><para> |
---|
938 | Another standalone program, DAVID, can show you any volume |
---|
939 | overlap errors in your geometry. DAVID takes as input a .prim file |
---|
940 | and outputs a new .prim file in which overlapping volumes have been |
---|
941 | highlighted. The use of DAVID is described in section |
---|
942 | <xref linkend="sect.Geom.Overlap" /> of this manual. |
---|
943 | </para></listitem> |
---|
944 | </itemizedlist> |
---|
945 | </para> |
---|
946 | |
---|
947 | <para> |
---|
948 | The DAWN-Network driver is almost the same as the DAWNFILE |
---|
949 | driver except that |
---|
950 | |
---|
951 | <itemizedlist spacing="compact"> |
---|
952 | <listitem><para> |
---|
953 | 3D data are passed to DAWN via the TCP/IP the socket (default) |
---|
954 | or the named pipe, and that, |
---|
955 | </para></listitem> |
---|
956 | </itemizedlist> |
---|
957 | </para> |
---|
958 | |
---|
959 | <para> |
---|
960 | If you have not set up network configurations of your host machine, |
---|
961 | set the environment variable <literal>G4DAWN_NAMED_PIPE</literal> to "1", |
---|
962 | e.g., <literal>% setenv G4DAWN_NAMED_PIPE 1</literal>. This setting switches |
---|
963 | the default socket connection to the named-pipe connection within |
---|
964 | the same host machine. The DAWN-Network driver also saves the 3D |
---|
965 | data to the file <literal>g4.prim</literal> in the current directory. |
---|
966 | </para> |
---|
967 | |
---|
968 | </sect2> |
---|
969 | |
---|
970 | |
---|
971 | <!-- ******************* Section (Level#2) ****************** --> |
---|
972 | <sect2 id="sect.VisDrv.RemDAWN"> |
---|
973 | <title> |
---|
974 | Remote Visualization with the DAWN-Network Driver |
---|
975 | </title> |
---|
976 | |
---|
977 | <para> |
---|
978 | Visualization in Geant4 is considered to be "remote" when it is |
---|
979 | performed on a machine other than the Geant4 host. Some of the |
---|
980 | visualization drivers support this feature. |
---|
981 | </para> |
---|
982 | |
---|
983 | <para> |
---|
984 | Usually, the visualization host is your local host, while the |
---|
985 | Geant4 host is a remote host where you log in, for example, with |
---|
986 | the <literal>telnet</literal> command. This enables distributed |
---|
987 | processing of Geant4 visualization, avoiding the transfer of large |
---|
988 | amounts of visualization data to your terminal display via the |
---|
989 | network. This section describes how to perform remote Geant4 |
---|
990 | visualization with the DAWN-Network driver. In order to do it, |
---|
991 | you must install the Fukui Renderer DAWN on your local host |
---|
992 | beforehand. |
---|
993 | </para> |
---|
994 | |
---|
995 | <para> |
---|
996 | The following steps realize remote Geant4 visualization viewed |
---|
997 | by DAWN. |
---|
998 | |
---|
999 | <orderedlist spacing="compact"> |
---|
1000 | <listitem><para> |
---|
1001 | Invoke DAWN with "-G" option on your local host: |
---|
1002 | |
---|
1003 | <informalexample> |
---|
1004 | <programlisting> |
---|
1005 | Local_Host> dawn -G |
---|
1006 | </programlisting> |
---|
1007 | </informalexample> |
---|
1008 | |
---|
1009 | This invokes DAWN with the network connection mode. |
---|
1010 | </para></listitem> |
---|
1011 | <listitem><para> |
---|
1012 | Login to the remote host where a Geant4 executable is placed. |
---|
1013 | </para></listitem> |
---|
1014 | <listitem><para> |
---|
1015 | Set an environment variable on the remote host as follows: |
---|
1016 | |
---|
1017 | <informalexample> |
---|
1018 | <programlisting> |
---|
1019 | Remote_Host> setenv G4DAWN_HOST_NAME local_host_name |
---|
1020 | </programlisting> |
---|
1021 | </informalexample> |
---|
1022 | |
---|
1023 | For example, if you are working in the local host named |
---|
1024 | "arkoop.kek.jp", set this environment variable as follows: |
---|
1025 | |
---|
1026 | <informalexample> |
---|
1027 | <programlisting> |
---|
1028 | Remote_Host> setenv G4DAWN_HOST_NAME arkoop.kek.jp |
---|
1029 | </programlisting> |
---|
1030 | </informalexample> |
---|
1031 | |
---|
1032 | This tells a Geant4 process running on the remote host where Geant4 |
---|
1033 | Visualization should be performed, i.e., where the visualized views |
---|
1034 | should be displayed. |
---|
1035 | </para></listitem> |
---|
1036 | <listitem><para> |
---|
1037 | Invoke a Geant4 process and perform visualization with the |
---|
1038 | DAWN-Network driver. For example: |
---|
1039 | |
---|
1040 | <informalexample> |
---|
1041 | <programlisting> |
---|
1042 | Idle> /vis/open DAWN |
---|
1043 | Idle> /vis/drawVolume |
---|
1044 | Idle> /vis/viewer/flush |
---|
1045 | </programlisting> |
---|
1046 | </informalexample> |
---|
1047 | </para></listitem> |
---|
1048 | </orderedlist> |
---|
1049 | </para> |
---|
1050 | |
---|
1051 | <para> |
---|
1052 | In step 4, 3D scene data are sent from the remote host to the |
---|
1053 | local host as |
---|
1054 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/G4PRIM_FORMAT_24/"> |
---|
1055 | DAWN-formatted data</ulink>, and the local DAWN will visualize the data. The |
---|
1056 | transferred data are saved as a file named <literal>g4.prim</literal> in the |
---|
1057 | current directory of the local host. |
---|
1058 | </para> |
---|
1059 | |
---|
1060 | <para> |
---|
1061 | <emphasis role="bold">Further information:</emphasis> |
---|
1062 | |
---|
1063 | <itemizedlist spacing="compact"> |
---|
1064 | <listitem><para> |
---|
1065 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAWN.html"> |
---|
1066 | http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAWN.html |
---|
1067 | </ulink> |
---|
1068 | </para></listitem> |
---|
1069 | <listitem><para> |
---|
1070 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/G4PRIM_FORMAT_24/"> |
---|
1071 | http://geant4.kek.jp/GEANT4/vis/DAWN/G4PRIM_FORMAT_24/ |
---|
1072 | </ulink> |
---|
1073 | </para></listitem> |
---|
1074 | </itemizedlist> |
---|
1075 | </para> |
---|
1076 | |
---|
1077 | <para> |
---|
1078 | <emphasis role="bold">Further information:</emphasis> |
---|
1079 | |
---|
1080 | <itemizedlist spacing="compact"> |
---|
1081 | <listitem><para> |
---|
1082 | Fukui Renderer DAWN: |
---|
1083 | <para> |
---|
1084 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAWN.html"> |
---|
1085 | http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAWN.html |
---|
1086 | </ulink> |
---|
1087 | </para> |
---|
1088 | </para></listitem> |
---|
1089 | <listitem><para> |
---|
1090 | The DAWNFILE driver: |
---|
1091 | <para> |
---|
1092 | <ulink url="http://geant4.kek.jp/GEANT4/vis/GEANT4/DAWNFILE_driver.html"> |
---|
1093 | http://geant4.kek.jp/GEANT4/vis/GEANT4/DAWNFILE_driver.html |
---|
1094 | </ulink> |
---|
1095 | </para> |
---|
1096 | </para></listitem> |
---|
1097 | <listitem><para> |
---|
1098 | The DAWN-Network driver: |
---|
1099 | <para> |
---|
1100 | <ulink url="http://geant4.kek.jp/GEANT4/vis/GEANT4/DAWNNET_driver.html"> |
---|
1101 | http://geant4.kek.jp/GEANT4/vis/GEANT4/DAWNNET_driver.html |
---|
1102 | </ulink> |
---|
1103 | </para> |
---|
1104 | </para></listitem> |
---|
1105 | <listitem><para> |
---|
1106 | Environmental variables to customize DAWN and DAWN drivers: |
---|
1107 | <para> |
---|
1108 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/DAWN_ENV.html"> |
---|
1109 | http://geant4.kek.jp/GEANT4/vis/DAWN/DAWN_ENV.html |
---|
1110 | </ulink> |
---|
1111 | </para> |
---|
1112 | <para> |
---|
1113 | <ulink url="http://geant4.kek.jp/GEANT4/vis/GEANT4/g4vis_on_linux.html"> |
---|
1114 | http://geant4.kek.jp/GEANT4/vis/GEANT4/g4vis_on_linux.html |
---|
1115 | </ulink> |
---|
1116 | </para> |
---|
1117 | </para></listitem> |
---|
1118 | <listitem><para> |
---|
1119 | DAWN format (g4.prim format) manual: |
---|
1120 | <para> |
---|
1121 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/G4PRIM_FORMAT_24/"> |
---|
1122 | http://geant4.kek.jp/GEANT4/vis/DAWN/G4PRIM_FORMAT_24/ |
---|
1123 | </ulink> |
---|
1124 | </para> |
---|
1125 | </para></listitem> |
---|
1126 | <listitem><para> |
---|
1127 | Geant4 Fukui University Group Home Page: |
---|
1128 | <para> |
---|
1129 | <ulink url="http://geant4.kek.jp/GEANT4/vis/"> |
---|
1130 | http://geant4.kek.jp/GEANT4/vis/ |
---|
1131 | </ulink> |
---|
1132 | </para> |
---|
1133 | </para></listitem> |
---|
1134 | <listitem><para> |
---|
1135 | DAWNCUT: |
---|
1136 | <para> |
---|
1137 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAWNCUT.html"> |
---|
1138 | http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAWNCUT.html |
---|
1139 | </ulink> |
---|
1140 | </para> |
---|
1141 | </para></listitem> |
---|
1142 | <listitem><para> |
---|
1143 | DAVID: |
---|
1144 | <para> |
---|
1145 | <ulink url="http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAVID.html"> |
---|
1146 | http://geant4.kek.jp/GEANT4/vis/DAWN/About_DAVID.html |
---|
1147 | </ulink> |
---|
1148 | </para> |
---|
1149 | </para></listitem> |
---|
1150 | <listitem><para> |
---|
1151 | Geant4 Visualization Tutorial using the DAWN Renderer: |
---|
1152 | <para> |
---|
1153 | <ulink url="http://geant4.slac.stanford.edu/Presentations/vis/GDAWNTutorial/G4DAWNTutorial.html"> |
---|
1154 | http://geant4.slac.stanford.edu/Presentations/vis/GDAWNTutorial/G4DAWNTutorial.html |
---|
1155 | </ulink> |
---|
1156 | </para> |
---|
1157 | </para></listitem> |
---|
1158 | </itemizedlist> |
---|
1159 | </para> |
---|
1160 | |
---|
1161 | </sect2> |
---|
1162 | |
---|
1163 | |
---|
1164 | <!-- ******************* Section (Level#2) ****************** --> |
---|
1165 | <sect2 id="sect.VisDrv.VRML"> |
---|
1166 | <title> |
---|
1167 | VRML |
---|
1168 | </title> |
---|
1169 | |
---|
1170 | <para> |
---|
1171 | These drivers were developed by Satoshi Tanaka and Yasuhide Sawada |
---|
1172 | (Fukui University). They generate VRML files, which describe 3D |
---|
1173 | scenes to be visualized with a proper VRML viewer, at either a |
---|
1174 | local or a remote host. It realizes virtual-reality visualization |
---|
1175 | with your WWW browser. There are many excellent VRML viewers, which |
---|
1176 | enable one to perform interactive spinning of detectors, walking |
---|
1177 | and/or flying inside detectors or particle showers, interactive |
---|
1178 | investigation of detailed detector geometry etc. |
---|
1179 | </para> |
---|
1180 | |
---|
1181 | <para> |
---|
1182 | There are two kinds of VRML drivers: the VRMLFILE driver, and |
---|
1183 | the VRML-Network driver. The VRMLFILE driver is usually |
---|
1184 | recommended, since it is faster and safer in the sense that it is |
---|
1185 | not affected by network conditions. |
---|
1186 | </para> |
---|
1187 | |
---|
1188 | <para> |
---|
1189 | The VRMLFILE driver sends 3D data to your VRML viewer, which is |
---|
1190 | running on the same host machine as Geant4, via an intermediate |
---|
1191 | file named <literal>g4.wrl</literal> created in the current directory. This |
---|
1192 | file can be re-visualization afterwards. In visualization, the name |
---|
1193 | of the VRML viewer should be specified by setting the environment |
---|
1194 | variable <literal>G4VRML_VIEWER</literal> beforehand. For example, |
---|
1195 | |
---|
1196 | <informalexample> |
---|
1197 | <programlisting> |
---|
1198 | % setenv G4VRML_VIEWER "netscape" |
---|
1199 | </programlisting> |
---|
1200 | </informalexample> |
---|
1201 | </para> |
---|
1202 | |
---|
1203 | <para> |
---|
1204 | Its default value is <literal>NONE</literal>, which means that no viewer |
---|
1205 | is invoked and only the file <literal>g4.wrl</literal> is generated. |
---|
1206 | </para> |
---|
1207 | |
---|
1208 | |
---|
1209 | <!-- ******* Bridgehead ******* --> |
---|
1210 | <bridgehead renderas='sect4'> |
---|
1211 | Remote Visualization with the VRML-Network Driver |
---|
1212 | </bridgehead> |
---|
1213 | |
---|
1214 | <para> |
---|
1215 | Visualization in Geant4 is considered to be "remote" when it is |
---|
1216 | performed on a machine other than the Geant4 host. Some of the |
---|
1217 | visualization drivers support this feature. |
---|
1218 | </para> |
---|
1219 | |
---|
1220 | <para> |
---|
1221 | Usually, the visualization host is your local host, while the |
---|
1222 | Geant4 host is a remote host where you log in, for example, with |
---|
1223 | the <literal>telnet</literal> command. This enables distributed processing of |
---|
1224 | Geant4 visualization, avoiding the transfer of large amounts of |
---|
1225 | visualization data to your terminal display via the network. |
---|
1226 | </para> |
---|
1227 | |
---|
1228 | <para> |
---|
1229 | In order to perform remote visualization with the VRML-Network |
---|
1230 | driver, the following must be installed on your local host |
---|
1231 | beforehand: |
---|
1232 | |
---|
1233 | <orderedlist spacing="compact"> |
---|
1234 | <listitem><para> |
---|
1235 | a VRML viewer |
---|
1236 | </para></listitem> |
---|
1237 | <listitem><para> |
---|
1238 | the Java application <literal>g4vrmlview</literal>. |
---|
1239 | </para></listitem> |
---|
1240 | </orderedlist> |
---|
1241 | </para> |
---|
1242 | |
---|
1243 | <para> |
---|
1244 | The Java application <literal>g4vrmlview</literal> is included as part of the |
---|
1245 | Geant4 package and is located at: |
---|
1246 | |
---|
1247 | <informalexample> |
---|
1248 | <programlisting> |
---|
1249 | source/visualization/VRML/g4vrmlview/ |
---|
1250 | </programlisting> |
---|
1251 | </informalexample> |
---|
1252 | </para> |
---|
1253 | |
---|
1254 | <para> |
---|
1255 | Installation instructions for <literal>g4vrmlview</literal> can be found in |
---|
1256 | the <literal>README</literal> file there, or on the WWW page below. |
---|
1257 | </para> |
---|
1258 | |
---|
1259 | <para> |
---|
1260 | The following steps realize remote Geant4 visualization |
---|
1261 | displayed with your local VRML browser: |
---|
1262 | |
---|
1263 | <orderedlist spacing="compact"> |
---|
1264 | <listitem><para> |
---|
1265 | Invoke the <literal>g4vrmlview</literal> on your local host, giving a |
---|
1266 | VRML viewer name as its argument: |
---|
1267 | |
---|
1268 | <informalexample> |
---|
1269 | <programlisting> |
---|
1270 | Local_Host> java g4vrmlview VRML_viewer_name |
---|
1271 | </programlisting> |
---|
1272 | </informalexample> |
---|
1273 | |
---|
1274 | For example, if you want to use the Netscape browser as your VRML |
---|
1275 | viewer, execute <literal>g4vrmlview</literal> as follows: |
---|
1276 | |
---|
1277 | <informalexample> |
---|
1278 | <programlisting> |
---|
1279 | Local_Host> java g4vrmlview netscape |
---|
1280 | </programlisting> |
---|
1281 | </informalexample> |
---|
1282 | |
---|
1283 | Of course, the command path to the VRML viewer should be properly set. |
---|
1284 | </para></listitem> |
---|
1285 | <listitem><para> |
---|
1286 | Log in to the remote host where a Geant4 executable is placed. |
---|
1287 | </para></listitem> |
---|
1288 | <listitem><para> |
---|
1289 | Set an environment variable on the remote host as follows: |
---|
1290 | |
---|
1291 | <informalexample> |
---|
1292 | <programlisting> |
---|
1293 | Remote_Host> setenv G4VRML_HOST_NAME local_host_name |
---|
1294 | </programlisting> |
---|
1295 | </informalexample> |
---|
1296 | |
---|
1297 | For example, if you are working on the local host named |
---|
1298 | "arkoop.kek.jp", set this environment variable as follows: |
---|
1299 | |
---|
1300 | <informalexample> |
---|
1301 | <programlisting> |
---|
1302 | Remote_Host> setenv G4VRML_HOST_NAME arkoop.kek.jp |
---|
1303 | </programlisting> |
---|
1304 | </informalexample> |
---|
1305 | |
---|
1306 | This tells a Geant4 process running on the remote host where Geant4 |
---|
1307 | Visualization should be performed, i.e., where the visualized views |
---|
1308 | should be displayed. |
---|
1309 | </para></listitem> |
---|
1310 | <listitem><para> |
---|
1311 | Invoke a Geant4 process and perform visualization with the |
---|
1312 | VRML-Network driver. For example: |
---|
1313 | |
---|
1314 | <informalexample> |
---|
1315 | <programlisting> |
---|
1316 | Idle> /vis/open VRML2 |
---|
1317 | Idle> /vis/drawVolume |
---|
1318 | Idle> /vis/viewer/update |
---|
1319 | </programlisting> |
---|
1320 | </informalexample> |
---|
1321 | </para></listitem> |
---|
1322 | </orderedlist> |
---|
1323 | </para> |
---|
1324 | |
---|
1325 | <para> |
---|
1326 | In step 4, 3D scene data are sent from the remote host to the |
---|
1327 | local host as VRML-formatted data, and the VRML viewer specified in |
---|
1328 | step 3 is invoked by the <literal>g4vrmlview</literal> process to visualize |
---|
1329 | the VRML data. The transferred VRML data are saved as a file named |
---|
1330 | <literal>g4.wrl</literal> in the current directory of the local host. |
---|
1331 | </para> |
---|
1332 | |
---|
1333 | <para> |
---|
1334 | <emphasis role="bold">Further information:</emphasis> |
---|
1335 | |
---|
1336 | <?soft-pagebreak ?> |
---|
1337 | <itemizedlist spacing="compact"> |
---|
1338 | <listitem><para> |
---|
1339 | <ulink url="http://geant4.kek.jp/GEANT4/vis/GEANT4/VRML_net_driver.html"> |
---|
1340 | http://geant4.kek.jp/GEANT4/vis/GEANT4/VRML_net_driver.html |
---|
1341 | </ulink> |
---|
1342 | </para></listitem> |
---|
1343 | </itemizedlist> |
---|
1344 | </para> |
---|
1345 | |
---|
1346 | <para> |
---|
1347 | <emphasis role="bold">Further information (VRML drivers):</emphasis> |
---|
1348 | |
---|
1349 | <?soft-pagebreak ?> |
---|
1350 | <itemizedlist spacing="compact"> |
---|
1351 | <listitem><para> |
---|
1352 | <ulink url="http://geant4.kek.jp/GEANT4/vis/GEANT4/VRML_file_driver.html"> |
---|
1353 | http://geant4.kek.jp/GEANT4/vis/GEANT4/VRML_file_driver.html |
---|
1354 | </ulink> |
---|
1355 | </para></listitem> |
---|
1356 | <listitem><para> |
---|
1357 | <ulink url="http://geant4.kek.jp/GEANT4/vis/GEANT4/VRML_net_driver.html"> |
---|
1358 | http://geant4.kek.jp/GEANT4/vis/GEANT4/VRML_net_driver.html |
---|
1359 | </ulink> |
---|
1360 | </para></listitem> |
---|
1361 | </itemizedlist> |
---|
1362 | </para> |
---|
1363 | |
---|
1364 | <para> |
---|
1365 | <emphasis role="bold">Sample VRML files:</emphasis> |
---|
1366 | |
---|
1367 | <?soft-pagebreak ?> |
---|
1368 | <itemizedlist spacing="compact"> |
---|
1369 | <listitem><para> |
---|
1370 | <ulink url="http://geant4.kek.jp/GEANT4/vis/GEANT4/VRML2_FIG/"> |
---|
1371 | http://geant4.kek.jp/GEANT4/vis/GEANT4/VRML2_FIG/ |
---|
1372 | </ulink> |
---|
1373 | </para></listitem> |
---|
1374 | </itemizedlist> |
---|
1375 | </para> |
---|
1376 | |
---|
1377 | <para> |
---|
1378 | <emphasis role="bold">Further information (VRML language and browsers):</emphasis> |
---|
1379 | |
---|
1380 | <itemizedlist spacing="compact"> |
---|
1381 | <listitem><para> |
---|
1382 | <ulink url="http://www.vrmlsite.com/">http://www.vrmlsite.com/ |
---|
1383 | </ulink> |
---|
1384 | </para></listitem> |
---|
1385 | </itemizedlist> |
---|
1386 | </para> |
---|
1387 | |
---|
1388 | </sect2> |
---|
1389 | |
---|
1390 | |
---|
1391 | <!-- ******************* Section (Level#2) ****************** --> |
---|
1392 | <sect2 id="sect.VisDrv.RayTrc"> |
---|
1393 | <title> |
---|
1394 | RayTracer |
---|
1395 | </title> |
---|
1396 | |
---|
1397 | <para> |
---|
1398 | This driver was developed by Makoto Asai and Minamimoto (Hirosihma |
---|
1399 | Instutute of Technology). It performs ray-tracing visualization |
---|
1400 | using the tracking routines of Geant4. It is, therefore, available |
---|
1401 | for every kinds of shapes/solids which Geant4 can handle. It is |
---|
1402 | also utilized for debugging the user's geometry for the tracking |
---|
1403 | routines of Geant4. It is well suited for photo-realistic high |
---|
1404 | quality output for presentation, and for intuitive debugging of |
---|
1405 | detector geometry. It produces a JPEG file. This driver is by |
---|
1406 | default listed in the available visualization drivers of user's |
---|
1407 | application. |
---|
1408 | </para> |
---|
1409 | |
---|
1410 | <para> |
---|
1411 | Some pieces of geometries may fail to show up in other |
---|
1412 | visualization drivers (due to algorithms those drivers use to |
---|
1413 | compute visualizable shapes and polygons), but RayTracer can handle |
---|
1414 | any geometry that the Geant4 navigator can handle. |
---|
1415 | </para> |
---|
1416 | |
---|
1417 | <para> |
---|
1418 | Because RayTracer in essence takes over Geant4's tracking |
---|
1419 | routines for its own use, RayTracer cannot be used to visualize |
---|
1420 | Trajectories or hits. |
---|
1421 | </para> |
---|
1422 | |
---|
1423 | <para> |
---|
1424 | An X-Window version, called RayTracerX, can be selected by |
---|
1425 | setting <literal>G4VIS_BUILD_RATRACERX_DRIVER</literal> at Geant4 library |
---|
1426 | build time and <literal>G4VIS_USE_RAYTRACERX</literal> at application (user |
---|
1427 | code) build time (assuming you use the standard visualization |
---|
1428 | manager, <literal>G4VisExecutive</literal>, or an equally smart vis manager). |
---|
1429 | RayTracerX builds the same jpeg file as RayTracer, but |
---|
1430 | simultaneously renders to screen so you can watch as rendering |
---|
1431 | grows progressively smoother. |
---|
1432 | </para> |
---|
1433 | |
---|
1434 | <para> |
---|
1435 | RayTracer has its own built-in commands - |
---|
1436 | <literal>/vis/rayTracer/</literal>.... Alternatively, you can treat it as a |
---|
1437 | normal vis system and use <literal>/vis/viewer/</literal>... commands, |
---|
1438 | e.g: |
---|
1439 | |
---|
1440 | <informalexample> |
---|
1441 | <programlisting> |
---|
1442 | /vis/open RayTracerX |
---|
1443 | /vis/drawVolume |
---|
1444 | /vis/viewer/set/viewpointThetaPhi 30 30 |
---|
1445 | /vis/viewer/refresh |
---|
1446 | </programlisting> |
---|
1447 | </informalexample> |
---|
1448 | </para> |
---|
1449 | |
---|
1450 | <para> |
---|
1451 | The view parameters are translated into the necessary RayTracer |
---|
1452 | parameters. |
---|
1453 | </para> |
---|
1454 | |
---|
1455 | <para> |
---|
1456 | RayTracer is compute intensive. If you are unsure of a good |
---|
1457 | viewing angle or zoom factor, you might be advised to choose them |
---|
1458 | with a faster renderer, such as OpenGL, and transfer the view |
---|
1459 | parameters with <literal>/vis/viewer/set/all</literal>: |
---|
1460 | |
---|
1461 | <informalexample> |
---|
1462 | <programlisting> |
---|
1463 | /vis/open OGLSXm # or any of the OGL options. Opens, say, viewer-0. |
---|
1464 | /vis/drawVolume |
---|
1465 | /vis/viewer/zoom # plus any /vis/viewer/commands that get you the view you want. |
---|
1466 | /vis/open RayTracerX |
---|
1467 | /vis/viewer/set/all viewer-0 |
---|
1468 | /vis/viewer/refresh |
---|
1469 | </programlisting> |
---|
1470 | </informalexample> |
---|
1471 | </para> |
---|
1472 | |
---|
1473 | </sect2> |
---|
1474 | |
---|
1475 | |
---|
1476 | <!-- ******************* Section (Level#2) ****************** --> |
---|
1477 | <sect2 id="sect.VisDrv.DetTree"> |
---|
1478 | <title> |
---|
1479 | Visualization of detector geometry tree |
---|
1480 | </title> |
---|
1481 | |
---|
1482 | <para> |
---|
1483 | ASCIITREE is a visualization driver that is not actually graphical |
---|
1484 | but that dumps the volume hierarchy as a simple text tree. |
---|
1485 | </para> |
---|
1486 | |
---|
1487 | <para> |
---|
1488 | Each call to /vis/viewer/flush or /vis/drawTree will dump the |
---|
1489 | tree. |
---|
1490 | </para> |
---|
1491 | |
---|
1492 | <para> |
---|
1493 | ASCIITree has command to control its verbosity, |
---|
1494 | <literal>/vis/ASCIITree/verbose</literal>. The verbosity value controls the |
---|
1495 | amount of information available, e.g., physical volume name alone, |
---|
1496 | or also logical volume and solid names. If the volume is |
---|
1497 | "sensitive" and/or has a "readout geometry", this may also be |
---|
1498 | indicated. Also, the mass of the physical volume tree(s) can be |
---|
1499 | printed (but beware - higher verbosity levels can be |
---|
1500 | computationally intensive). |
---|
1501 | </para> |
---|
1502 | |
---|
1503 | <para> |
---|
1504 | At verbosity level 4, ASCIITree calculates the mass of the |
---|
1505 | complete geometry tree taking into account daughters up to the |
---|
1506 | depth specified for each physical volume. The calculation involves |
---|
1507 | subtracting the mass of that part of the mother that is occupied by |
---|
1508 | each daughter and then adding the mass of the daughter, and so on |
---|
1509 | down the hierarchy. |
---|
1510 | |
---|
1511 | <informalexample> |
---|
1512 | <programlisting> |
---|
1513 | /vis/ASCIITree/Verbose 4 |
---|
1514 | /vis/viewer/flush |
---|
1515 | "HadCalorimeterPhysical":0 / "HadCalorimeterLogical" / "HadCalorimeterBox"(G4Box), |
---|
1516 | 1.8 m3 , 11.35 g/cm3 |
---|
1517 | "HadCalColumnPhysical":-1 (10 replicas) / "HadCalColumnLogical" / "HadCalColumnBox"(G4Box), |
---|
1518 | 180000 cm3, 11.35 g/cm3 |
---|
1519 | "HadCalCellPhysical":-1 (2 replicas) / "HadCalCellLogical" / "HadCalCellBox"(G4Box), |
---|
1520 | 90000 cm3, 11.35 g/cm3 |
---|
1521 | "HadCalLayerPhysical":-1 (20 replicas) / "HadCalLayerLogical" / "HadCalLayerBox"(G4Box), |
---|
1522 | 4500 cm3, 11.35 g/cm3 |
---|
1523 | "HadCalScintiPhysical":0 / "HadCalScintiLogical" / "HadCalScintiBox"(G4Box), |
---|
1524 | 900 cm3, 1.032 g/cm3 |
---|
1525 | |
---|
1526 | Calculating mass(es)... |
---|
1527 | Overall volume of "worldPhysical":0, is 2400 m3 |
---|
1528 | Mass of tree to unlimited depth is 22260.5 kg |
---|
1529 | </programlisting> |
---|
1530 | </informalexample> |
---|
1531 | </para> |
---|
1532 | |
---|
1533 | <para> |
---|
1534 | Some more examples of ASCIITree in action: |
---|
1535 | |
---|
1536 | <informalexample> |
---|
1537 | <programlisting> |
---|
1538 | Idle> /vis/ASCIITree/verbose 1 |
---|
1539 | Idle> /vis/drawTree |
---|
1540 | # Set verbosity with "/vis/ASCIITree/verbose |
---|
1541 | # < 10: - does not print daughters of repeated placements, does not repeat replicas. |
---|
1542 | # >= 10: prints all physical volumes. |
---|
1543 | # The level of detail is given by verbosity%10: |
---|
1544 | # for each volume: |
---|
1545 | # >= 0: physical volume name. |
---|
1546 | # >= 1: logical volume name (and names of sensitive detector and readout geometry, if any). |
---|
1547 | # >= 2: solid name and type. |
---|
1548 | # >= 3: volume and density. |
---|
1549 | # >= 5: daughter-subtracted volume and mass. |
---|
1550 | # and in the summary at the end of printing: |
---|
1551 | # >= 4: daughter-included mass of top physical volume(s) in scene to depth specified. |
---|
1552 | ..... |
---|
1553 | "Calorimeter", copy no. 0, belongs to logical volume "Calorimeter" |
---|
1554 | "Layer", copy no. -1, belongs to logical volume "Layer" (10 replicas) |
---|
1555 | "Absorber", copy no. 0, belongs to logical volume "Absorber" |
---|
1556 | "Gap", copy no. 0, belongs to logical volume "Gap" |
---|
1557 | ..... |
---|
1558 | Idle> /vis/ASCIITree/verbose 15 |
---|
1559 | Idle> /vis/drawTree |
---|
1560 | .... |
---|
1561 | "tube_phys":0 / "tube_L" / "tube"(G4Tubs), 395841 cm3, 1.782 mg/cm3, |
---|
1562 | 9.6539e-08 mm3, 1.72032e-10 mg |
---|
1563 | "divided_tube_phys":0 / "divided_tube_L" / "divided_tube"(G4Tubs), 65973.4 cm3, |
---|
1564 | 1.782 mg/cm3, 7587.54 cm3, 13.521 g |
---|
1565 | "divided_tube_inset_phys":0 / "divided_tube_inset_L" / "divided_tube_inset"(G4Tubs), |
---|
1566 | 58385.9 cm3, 1.782 mg/cm3, 6.03369e-09 mm3, 1.0752e-11 mg |
---|
1567 | "sub_divided_tube_phys":0 / "sub_divided_tube_L" / "sub_divided_tube"(G4Tubs), |
---|
1568 | 14596.5 cm3, 1.782 mg/cm3, 12196.5 cm3, 21.7341 g |
---|
1569 | ..... |
---|
1570 | Calculating mass(es)... |
---|
1571 | Overall volume of "expHall_P":0, is 8000 m3 and the daughter-included mass to unlimited depth |
---|
1572 | is 78414 kg |
---|
1573 | ..... |
---|
1574 | </programlisting> |
---|
1575 | </informalexample> |
---|
1576 | </para> |
---|
1577 | |
---|
1578 | <para> |
---|
1579 | For the complete list of commands and options, see the |
---|
1580 | <ulink url="./AllResources/Control/UIcommands/_vis_.html"> |
---|
1581 | Control...UICommands</ulink> section of this user guide. |
---|
1582 | </para> |
---|
1583 | |
---|
1584 | </sect2> |
---|
1585 | |
---|
1586 | |
---|
1587 | <!-- ******************* Section (Level#2) ****************** --> |
---|
1588 | <sect2 id="sect.VisDrv.GAGTree"> |
---|
1589 | <title> |
---|
1590 | GAG Tree |
---|
1591 | </title> |
---|
1592 | |
---|
1593 | <para> |
---|
1594 | The GAGTree driver provides a listing of the detector geometry tree |
---|
1595 | within GAG, the Geant Adaptive GUI, ( |
---|
1596 | <ulink url="http://erpc1.naruto-u.ac.jp/~geant4"> |
---|
1597 | http://erpc1.naruto-u.ac.jp/~geant4 |
---|
1598 | </ulink> |
---|
1599 | ). GAG allows "folding/un-folding" a part of the geometry tree, using |
---|
1600 | the <emphasis>Tree Widget</emphasis> in Java: |
---|
1601 | |
---|
1602 | <informalfigure id="fig.VisDrv_1"> |
---|
1603 | <mediaobject> |
---|
1604 | <imageobject role="fo"> |
---|
1605 | <imagedata fileref="./AllResources/Visualization/visualization.src/gagtree.jpg" |
---|
1606 | format="JPG" contentwidth="12.0cm" align="center" /> |
---|
1607 | </imageobject> |
---|
1608 | <imageobject role="html"> |
---|
1609 | <imagedata fileref="./AllResources/Visualization/visualization.src/gagtree.jpg" |
---|
1610 | format="JPG" align="center" /> |
---|
1611 | </imageobject> |
---|
1612 | </mediaobject> |
---|
1613 | </informalfigure> |
---|
1614 | </para> |
---|
1615 | |
---|
1616 | </sect2> |
---|
1617 | |
---|
1618 | |
---|
1619 | <!-- ******************* Section (Level#2) ****************** --> |
---|
1620 | <sect2 id="sect.VisDrv.XMLTree"> |
---|
1621 | <title> |
---|
1622 | XML Tree |
---|
1623 | </title> |
---|
1624 | |
---|
1625 | <para> |
---|
1626 | The XML description of the geometry tree can be created in Geant4 |
---|
1627 | by the XML Tree driver. The XML source can also be edited on the |
---|
1628 | fly. The created XML files are visualizable with any XML browser |
---|
1629 | (in Windows, a good XML viewer is <emphasis>XML Notepad</emphasis>). |
---|
1630 | |
---|
1631 | <itemizedlist spacing="compact"> |
---|
1632 | <listitem><para> |
---|
1633 | Folding and un-folding: |
---|
1634 | |
---|
1635 | <informalfigure id="fig.VisDrv_2"> |
---|
1636 | <mediaobject> |
---|
1637 | <imageobject role="fo"> |
---|
1638 | <imagedata fileref="./AllResources/Visualization/visualization.src/xmlnp.jpg" |
---|
1639 | format="JPG" contentwidth="12.0cm" align="center" /> |
---|
1640 | </imageobject> |
---|
1641 | <imageobject role="html"> |
---|
1642 | <imagedata fileref="./AllResources/Visualization/visualization.src/xmlnp.jpg" |
---|
1643 | format="JPG" align="center" /> |
---|
1644 | </imageobject> |
---|
1645 | </mediaobject> |
---|
1646 | </informalfigure> |
---|
1647 | </para></listitem> |
---|
1648 | </itemizedlist> |
---|
1649 | |
---|
1650 | <?soft-pagebreak ?> |
---|
1651 | <itemizedlist> |
---|
1652 | <listitem><para> |
---|
1653 | Searching a string: |
---|
1654 | |
---|
1655 | <informalfigure id="fig.VisDrv_3"> |
---|
1656 | <mediaobject> |
---|
1657 | <imageobject role="fo"> |
---|
1658 | <imagedata fileref="./AllResources/Visualization/visualization.src/xmlnpfind.jpg" |
---|
1659 | format="JPG" contentwidth="12.0cm" align="center" /> |
---|
1660 | </imageobject> |
---|
1661 | <imageobject role="html"> |
---|
1662 | <imagedata fileref="./AllResources/Visualization/visualization.src/xmlnpfind.jpg" |
---|
1663 | format="JPG" align="center" /> |
---|
1664 | </imageobject> |
---|
1665 | </mediaobject> |
---|
1666 | </informalfigure> |
---|
1667 | </para></listitem> |
---|
1668 | </itemizedlist> |
---|
1669 | </para> |
---|
1670 | |
---|
1671 | |
---|
1672 | </sect2> |
---|
1673 | </sect1> |
---|