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2 | <!-- --> |
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3 | <!-- [History] --> |
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4 | <!-- Converted to DocBook: Katsuya Amako, Aug-2006 --> |
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5 | <!-- --> |
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6 | <!-- ******************************************************** --> |
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7 | |
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8 | |
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9 | <!-- ******************* Section (Level#1) ****************** --> |
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10 | <sect1 id="sect.HowToSetUpInter"> |
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11 | <title> |
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12 | How to Set Up an Interactive Session |
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13 | </title> |
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14 | |
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15 | |
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16 | <!-- ******************* Section (Level#2) ****************** --> |
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17 | <sect2 id="sect.HowToSetUpInter.Intro"> |
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18 | <title> |
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19 | Introduction |
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20 | </title> |
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21 | |
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22 | <!-- ******************* Section (Level#3) ****************** --> |
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23 | <sect3 id="sect.HowToSetUpInter.Intro.RolesIntercoms"> |
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24 | <title> |
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25 | Roles of the "intercoms" category |
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26 | </title> |
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27 | |
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28 | <para> |
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29 | The "intercoms" category |
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30 | provides an expandable command interpreter. It is the key mechanism |
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31 | of Geant4 to realize secure user interactions of all categories without |
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32 | being annoyed by the dependencies among categories. The direct use |
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33 | of Geant4 classes in a C++ program offers a first ground level of |
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34 | interactivity, i.e., the batch session. As seen in the |
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35 | examples/novice/N01, Geant4 commands and macros are to be |
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36 | hard-coded in the program. |
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37 | </para> |
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38 | |
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39 | |
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40 | |
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41 | </sect3> |
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42 | |
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43 | <!-- ******************* Section (Level#3) ****************** --> |
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44 | <sect3 id="sect.HowToSetUpInter.Intro.UserInterfaces"> |
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45 | <title> |
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46 | User Interfaces to steer the simulation |
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47 | </title> |
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48 | |
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49 | <para> |
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50 | To avoid too much programming, the |
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51 | "intercoms" category provides the abstract class <emphasis>G4UIsession</emphasis> |
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52 | that captures interactive commands . The concrete implementation of |
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53 | the user interface and Graphical User Interfaces (GUI) is left to |
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54 | the interfaces category. This interfacing strategy opens an |
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55 | important door towards various user interface tools and allows |
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56 | Geant4 to utilize the state-of-the-art GUI tools such as Motif, Qt, |
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57 | and Java etc..The richness of the collaboration has permitted for |
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58 | developers to offer various user interfaces to the Geant4 |
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59 | command system. Currently available are the following; |
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60 | |
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61 | <orderedlist spacing="compact"> |
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62 | <listitem><para> |
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63 | Character terminal (dumb terminal and tcsh(bash)-like terminal), |
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64 | the default user interface of Geant4, |
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65 | </para></listitem> |
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66 | <listitem><para> |
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67 | Xm, Xaw, Win32, variations of the upper terminal by using a |
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68 | Motif, Athena or Windows widget to retrieve commands, and |
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69 | </para></listitem> |
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70 | <listitem><para> |
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71 | GAG, a fully Graphical User Interface and its network extension |
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72 | GainServer of the client/server type. |
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73 | </para></listitem> |
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74 | </orderedlist> |
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75 | </para> |
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76 | |
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77 | <para> |
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78 | Full implementation of the character |
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79 | terminals (1 and 2) is included in the standard Geant4 distribution |
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80 | in the <literal>source/interfaces/basic</literal> directory. As for GAG, |
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81 | the front-end class is included |
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82 | in the Geant4 distribution in the source/interfaces/GAG directory, |
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83 | while its partner GUI package MOMO.jar is available in the standard Geant4 distribution |
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84 | under the |
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85 | <literal>environments/MOMO</literal> directory. MOMO.jar, Java archive file, contains |
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86 | not only GAG, but also GGE and other helper packages. |
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87 | Supplementary information is available |
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88 | from the author's Webpage(see URL below). |
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89 | </para> |
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90 | |
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91 | <para> |
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92 | GAG, GainServer's client GUI Gain: |
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93 | <ulink url="http://www-geant4.kek.jp/~yoshidah"> |
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94 | http://www-geant4.kek.jp/~yoshidah |
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95 | </ulink> |
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96 | </para> |
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97 | |
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98 | </sect3> |
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99 | </sect2> |
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100 | |
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101 | <!-- ******************* Section (Level#2) ****************** --> |
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102 | <sect2 id="sect.HowToSetUpInter.DescInter"> |
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103 | <title> |
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104 | A Short Description of Available Interface Classes |
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105 | </title> |
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106 | |
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107 | <!-- ******************* Section (Level#3) ****************** --> |
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108 | <sect3 id="sect.HowToSetUpInter.DescInter.G4UI"> |
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109 | <title> |
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110 | <emphasis>G4UIterminal</emphasis> and <emphasis>G4UItcsh</emphasis> classes |
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111 | </title> |
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112 | |
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113 | <para> |
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114 | These interfaces open a session on the character terminal. |
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115 | <emphasis>G4UIterminal</emphasis> runs on all platform supported by Geant4, |
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116 | including <emphasis>cygwin</emphasis> on Windows, |
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117 | while <emphasis>G4UItcsh</emphasis> runs on Solaris and Linux. G4UItcsh |
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118 | supports user-friendly key bindings a-la-tcsh (or bash); |
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119 | |
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120 | <variablelist> |
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121 | <varlistentry> |
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122 | <term>^A</term> |
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123 | <listitem> |
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124 | move cursor to the top |
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125 | </listitem> |
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126 | </varlistentry> |
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127 | <varlistentry> |
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128 | <term>^B</term> |
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129 | <listitem> |
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130 | backward cursor ([LEFT] cursor) |
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131 | </listitem> |
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132 | </varlistentry> |
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133 | <varlistentry> |
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134 | <term>^C (except Windows terminal)</term> |
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135 | <listitem> |
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136 | abort a run (<emphasis>soft abort</emphasis>) during event processing. |
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137 | A program will be terminated while accepting a user command. |
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138 | </listitem> |
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139 | </varlistentry> |
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140 | <varlistentry> |
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141 | <term>^D</term> |
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142 | <listitem> |
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143 | delete/exit/show matched list |
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144 | </listitem> |
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145 | </varlistentry> |
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146 | <varlistentry> |
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147 | <term>^E</term> |
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148 | <listitem> |
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149 | move cursor to the end |
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150 | </listitem> |
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151 | </varlistentry> |
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152 | <varlistentry> |
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153 | <term>^F</term> |
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154 | <listitem> |
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155 | forward cursor ([RIGHT] cursor) |
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156 | </listitem> |
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157 | </varlistentry> |
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158 | <varlistentry> |
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159 | <term>^K</term> |
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160 | <listitem> |
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161 | clear after the cursor |
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162 | </listitem> |
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163 | </varlistentry> |
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164 | <varlistentry> |
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165 | <term>^N</term> |
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166 | <listitem> |
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167 | next command ([DOWN] cursor) |
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168 | </listitem> |
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169 | </varlistentry> |
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170 | <varlistentry> |
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171 | <term>^P</term> |
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172 | <listitem> |
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173 | previous command ([UP] cursor) |
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174 | </listitem> |
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175 | </varlistentry> |
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176 | <varlistentry> |
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177 | <term>TAB</term> |
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178 | <listitem> |
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179 | command completion |
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180 | </listitem> |
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181 | </varlistentry> |
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182 | <varlistentry> |
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183 | <term>DEL</term> |
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184 | <listitem> |
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185 | backspace |
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186 | </listitem> |
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187 | </varlistentry> |
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188 | <varlistentry> |
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189 | <term>BS</term> |
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190 | <listitem> |
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191 | backspace |
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192 | </listitem> |
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193 | </varlistentry> |
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194 | </variablelist> |
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195 | </para> |
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196 | |
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197 | <para> |
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198 | In addition, the following string substitutions are supported; |
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199 | |
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200 | <variablelist> |
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201 | <varlistentry> |
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202 | <term>%s</term> |
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203 | <listitem> |
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204 | current application status |
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205 | </listitem> |
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206 | </varlistentry> |
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207 | <varlistentry> |
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208 | <term>%/</term> |
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209 | <listitem> |
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210 | current working directory |
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211 | </listitem> |
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212 | </varlistentry> |
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213 | <varlistentry> |
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214 | <term>%h</term> |
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215 | <listitem> |
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216 | history number |
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217 | </listitem> |
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218 | </varlistentry> |
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219 | </variablelist> |
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220 | </para> |
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221 | |
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222 | </sect3> |
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223 | |
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224 | <!-- ******************* Section (Level#3) ****************** --> |
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225 | <sect3 id="sect.HowToSetUpInter.DescInter.G4UIXm"> |
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226 | <title> |
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227 | <emphasis>G4UIXm</emphasis>, <emphasis>G4UIXaw</emphasis> and |
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228 | <emphasis>G4UIWin32</emphasis> classes |
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229 | </title> |
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230 | |
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231 | <para> |
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232 | These interfaces are versions of <emphasis>G4UIterminal</emphasis> |
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233 | implemented over libraries Motif, Athena and WIN32 respectively. |
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234 | <emphasis>G4UIXm</emphasis> uses the Motif XmCommand widget, |
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235 | <emphasis>G4UIXaw</emphasis> the Athena dialog |
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236 | widget, and <emphasis>G4UIWin32</emphasis> the Windows "edit" component to do the |
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237 | command capturing. These interfaces are useful if working in |
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238 | conjunction with visualization drivers that use the Xt library or |
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239 | the WIN32 one. |
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240 | </para> |
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241 | |
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242 | <para> |
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243 | A command box is at disposal for entering or recalling Geant4 commands. |
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244 | Command completion by typing &ldquo;TAB&rdquo; key is |
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245 | available on the command line. The shell commands "exit, cont, |
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246 | help, ls, cd..." are also supported. A menu bar could be customized |
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247 | through the <emphasis>AddMenu</emphasis> and |
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248 | <emphasis>AddButton</emphasis> method. Ex: |
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249 | |
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250 | <variablelist> |
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251 | <varlistentry> |
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252 | <term>/gui/addMenu</term> |
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253 | <listitem> |
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254 | test Test |
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255 | </listitem> |
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256 | </varlistentry> |
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257 | <varlistentry> |
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258 | <term>/gui/addButton</term> |
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259 | <listitem> |
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260 | test Init /run/initialize |
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261 | </listitem> |
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262 | </varlistentry> |
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263 | <varlistentry> |
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264 | <term>/gui/addButton</term> |
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265 | <listitem> |
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266 | test "Set gun" "/control/execute gun.g4m" |
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267 | </listitem> |
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268 | </varlistentry> |
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269 | <varlistentry> |
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270 | <term>/gui/addButton</term> |
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271 | <listitem> |
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272 | test "Run one event" "/run/beamOn 1" |
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273 | </listitem> |
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274 | </varlistentry> |
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275 | </variablelist> |
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276 | </para> |
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277 | |
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278 | <para> |
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279 | <emphasis>G4UIXm</emphasis> runs on Unix/Linux with Motif. <emphasis>G4UIXaw</emphasis>, |
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280 | less user friendly, runs on Unix with Athena widgets. |
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281 | <emphasis>G4UIWin32</emphasis> runs on Windows. |
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282 | </para> |
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283 | |
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284 | </sect3> |
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285 | |
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286 | |
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287 | <!-- ******************* Section (Level#3) ****************** --> |
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288 | <sect3 id="sect.HowToSetUpInter.DescInter.G4UIGAG"> |
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289 | <title> |
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290 | <emphasis>G4UIGAG</emphasis> and <emphasis>G4UIGainServer</emphasis> classes |
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291 | </title> |
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292 | |
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293 | <para> |
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294 | They are the front-end classes of Geant4 which make connection with their |
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295 | respective graphical user interfaces, GAG (Geant4 Adaptive GUI) via pipe, and Gain |
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296 | (Geant4 adaptive interface for network) via sockets. While GAG must run on the same |
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297 | system (Windows or Unixen) as a Geant4 application, Gain can run on a |
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298 | remote system (Windows, Linux, etc.) in which JRE (Java Runtime |
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299 | Environment) is installed. A Geant4 application is invoked on a Unix |
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300 | (Linux) system and behaves as a network server. It opens a port, |
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301 | waiting the connection from the Gain. Gain is capable to connect to |
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302 | multiple Geant4 "servers" on Unixen systems at different |
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303 | institutes. |
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304 | </para> |
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305 | |
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306 | <para> |
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307 | Client GUIs, GAG and Gain have almost similar look-and-feel. So, |
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308 | GAG's functionalities are briefly explained here. Please refer to |
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309 | the above URL for details. |
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310 | </para> |
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311 | |
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312 | <para> |
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313 | Using GAG, user |
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314 | can select a command, set its parameters and execute it. It is adaptive, in the sense that it |
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315 | reflects the internal states of Geant4 that is a state machine. So, GAG always provides users with |
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316 | the Geant4 commands which may be added, deleted, enabled or disabled during a session. GAG does nothing by itself but to play an intermediate between user and |
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317 | an executable simulation program via pipes. Geant4's |
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318 | front-end class <emphasis>G4UIGAG</emphasis> must be instantiated to |
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319 | communicate with GAG. GAG runs on Linux and Windows. If MOMO.jar is in your |
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320 | CLASSPATH, it can be run by a command; |
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321 | </para> |
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322 | |
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323 | <informalexample> |
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324 | <programlisting> |
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325 | %java -jar MOMO.jar |
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326 | </programlisting> |
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327 | </informalexample> |
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328 | |
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329 | <para> |
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330 | GAG has following functions. |
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331 | |
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332 | <variablelist> |
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333 | <varlistentry> |
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334 | <term>GAG Menu:</term> |
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335 | <listitem> |
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336 | The menus are to choose and run a GEANT4 executable file, to kill or exit |
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337 | a GEANT4 process and to exit GAG. Upon the normal exit or an |
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338 | unexpected death of the Geant4 process, GAG window are |
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339 | automatically reset to run another GEANT4 executable. |
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340 | </listitem> |
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341 | </varlistentry> |
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342 | <varlistentry> |
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343 | <term>GEANT4 Command tree:</term> |
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344 | <listitem> |
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345 | Upon the establishment of the pipe connection with the GEANT4 process, GAG displays |
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346 | the command menu, using expandable tree browser whose look and feel is similar to |
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347 | a file browser. Disabled commands are shown in opaque. GAG |
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348 | doesn &rsquo;t display commands that are just below the root of |
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349 | the command hierarchy. Direct type-in field is available for such |
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350 | input. Guidance of command categories and commands are displayed |
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351 | upon focusing. GAG has a command history function. User can |
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352 | re-execute a command with old parameters, edit the history, or save |
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353 | the history to create a macro file. |
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354 | </listitem> |
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355 | </varlistentry> |
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356 | <varlistentry> |
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357 | <term>Command Parameter panel:</term> |
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358 | <listitem> |
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359 | GAG's parameter panel is the user-friendliest part. It displays parameter |
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360 | name, its guidance, its type(s) (integer, double, Boolean or string), |
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361 | omittable, default value(s), expression(s) of its range and candidate list(s) |
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362 | (for example, of units). Range check is done by intercoms and |
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363 | the error message from it is shown in the pop-up dialog box. When a |
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364 | parameter component has a candidate list, a list box is |
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365 | automatically displayed . When a file is requested by a command, |
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366 | the file chooser is available. |
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367 | </listitem> |
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368 | </varlistentry> |
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369 | <varlistentry> |
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370 | <term>Logging:</term> |
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371 | <listitem> |
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372 | Log can be redirected to the terminal (xterm or cygwin |
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373 | window) from which GAG is invoked. It can be interrupted as will, |
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374 | in the middle of a long session of execution. Log can be saved to a |
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375 | file independent of the above redirection . GAG displays warning or |
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376 | error messages from GEANT4 in a pop-up warning widget. |
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377 | </listitem> |
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378 | </varlistentry> |
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379 | </variablelist> |
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380 | </para> |
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381 | |
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382 | </sect3> |
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383 | </sect2> |
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384 | |
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385 | |
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386 | <!-- ******************* Section (Level#2) ****************** --> |
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387 | <sect2 id="sect.HowToSetUpInter.BuildLib"> |
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388 | <title> |
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389 | Building the Interface Libraries |
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390 | </title> |
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391 | |
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392 | <para> |
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393 | The libraries that don't depend on external packages are created by default, using |
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394 | Geant4 configure scripts. |
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395 | They include <emphasis>G4UIterminal</emphasis>, <emphasis>G4UItcsh</emphasis> |
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396 | and <emphasis>G4UIGAG</emphasis> in libraries <emphasis>libG4UIbasic.a/so</emphasis> and |
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397 | <emphasis>libG4UIGAG.a/so</emphasis>. <emphasis>G4UIGainServer.o</emphasis> is packed in |
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398 | the <emphasis>libG4UIGAG</emphasis>. |
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399 | </para> |
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400 | |
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401 | <para> |
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402 | To make the libraries of <emphasis>G4UIXm</emphasis>, <emphasis>G4UIXaw</emphasis> and |
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403 | <emphasis>G4UIWin32</emphasis> , respective environment variables |
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404 | <emphasis role="bold">G4UI_BUILD_XM_SESSION</emphasis>, |
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405 | <emphasis role="bold">G4UI_BUILD_XAW_SESSION</emphasis> or |
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406 | <emphasis role="bold">G4UI_BUILD_WIN32_SESSION</emphasis> must be set |
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407 | explicitly before creating libraries. |
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408 | </para> |
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409 | |
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410 | <para> |
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411 | However, if the environment variable <emphasis role="bold">G4UI_NONE</emphasis> is |
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412 | set, no interface libraries are built at all. |
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413 | </para> |
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414 | |
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415 | <para> |
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416 | The scheme of building the user interface libraries is |
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417 | specified in "$G4INSTALL/config/G4UI_BUILD.gmk" makefile and the |
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418 | dependencies on the external packages are specified in |
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419 | "$G4INSTALL/config/interactivity.gmk". |
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420 | </para> |
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421 | |
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422 | </sect2> |
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423 | |
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424 | <!-- ******************* Section (Level#2) ****************** --> |
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425 | <sect2 id="sect.HowToSetUpInter.HowToUseInter"> |
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426 | <title> |
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427 | How to Use the Interface in Your Application |
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428 | </title> |
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429 | |
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430 | <para> |
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431 | To use a given interface |
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432 | (<literal>G4UIxxx</literal> where <literal>xxx = terminal,Xm, Xaw, Win32, |
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433 | GAG, GainServer</literal>) in your program, you have following |
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434 | lines in your main program; |
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435 | |
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436 | <informalexample> |
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437 | <programlisting> |
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438 | // to include the class definition in the main program: |
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439 | #include "G4Uixxx.hh" |
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440 | // to instantiate a session of your choice and start the session |
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441 | G4UIsession* session = new G4UIxxx; |
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442 | session->SessionStart(); |
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443 | // the line next to the "SessionStart" is necessary to finish the session |
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444 | delete session; |
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445 | </programlisting> |
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446 | </informalexample> |
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447 | </para> |
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448 | |
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449 | <para> |
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450 | For a tcsh session, the second line must be : |
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451 | |
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452 | <informalexample> |
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453 | <programlisting> |
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454 | G4UIsession* session = new G4UIterminal(new G4UItcsh); |
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455 | </programlisting> |
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456 | </informalexample> |
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457 | </para> |
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458 | |
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459 | <para> |
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460 | See the examples in "examples/novice/N0x" in which the terminal session |
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461 | is used. |
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462 | </para> |
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463 | |
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464 | <para> |
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465 | If the user wants to deactivate the default signal handler (soft abort) |
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466 | raised by "Ctr-C", the false flag can be set in the second argument |
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467 | of the <emphasis>G4UIterminal</emphasis> constructor like; |
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468 | |
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469 | <informalexample> |
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470 | <programlisting> |
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471 | G4UIsession* session = new G4UIterminal(new G4UItcsh, false). |
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472 | </programlisting> |
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473 | </informalexample> |
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474 | </para> |
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475 | |
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476 | <para> |
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477 | Again, environment variable must be preset to select a given interface. But for your |
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478 | convenience, some of them are set by defaults. |
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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 | <emphasis>G4UIterminal</emphasis>, <emphasis>G4UItcsh</emphasis>, |
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483 | <emphasis>G4UIGAG</emphasis> and <emphasis>G4UIGainServer</emphasis> |
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484 | can be used without setting any environment |
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485 | variables. Sessions not needing external packages or libraries are |
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486 | always built (see "G4UI_BUILD.gmk") and linked, so the user can |
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487 | instantiate one of these sessions without rebuilding the libraries |
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488 | and without setting any environment variables. For backwards |
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489 | compatibility with user code, as typified by geant4/examples main |
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490 | programs, the C-pre-processor variables corresponding to the |
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491 | original environment variables for the above three (i.e., |
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492 | <emphasis role="bold">G4UI_USE_TERMINAL</emphasis>, |
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493 | <emphasis role="bold">G4UI_USE_TCSH</emphasis> and |
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494 | <emphasis role="bold">G4UI_USE_GAG</emphasis> ) are set. However, |
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495 | if he/she sets no environment variables, then the C-pre-processor variable |
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496 | <emphasis role="bold">G4UI_USE_TERMINAL</emphasis> is set by default, |
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497 | although there is no need to use it. |
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498 | </para></listitem> |
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499 | <listitem><para> |
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500 | The environment variable <emphasis role="bold">G4UI_USE_XM</emphasis>, |
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501 | <emphasis role="bold">G4UI_USE_XAW</emphasis> or |
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502 | <emphasis role="bold">G4UI_USE_WIN32</emphasis> must be set to use the |
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503 | respective interface. The file "$G4INSTALL/config/interactivity.gmk" |
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504 | resolves their dependencies on external packages. |
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505 | </para></listitem> |
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506 | <listitem><para> |
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507 | If the environment variable <emphasis role="bold">G4UI_NONE</emphasis> is |
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508 | set, no external libraries are selected. Also, for your convenience, if any |
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509 | <emphasis role="bold">G4UI_USE_XXX</emphasis> environment variable is set, |
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510 | then the corresponding C-pre-processor flag is also set. However, if the |
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511 | environment variable <emphasis role="bold">G4UI_NONE</emphasis> is set, |
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512 | no C-pre-processor flags are set. |
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513 | </para></listitem> |
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514 | </itemizedlist> |
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515 | </para> |
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516 | |
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517 | </sect2> |
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518 | </sect1> |
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