1 | <!-- ******************************************************** --> |
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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.VisEnhTrj"> |
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11 | <title> |
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12 | Enhanced Trajectory Drawing |
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13 | </title> |
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14 | |
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15 | <!-- ******************* Section (Level#2) ****************** --> |
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16 | <sect2 id="sect.VisEnhTrj.DflCnfg"> |
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17 | <title> |
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18 | Default Configuration |
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19 | </title> |
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20 | |
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21 | <para> |
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22 | Trajectory drawing styles are specified through trajectory drawing |
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23 | models. Each drawing model has a default configuration provided |
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24 | through a G4VisTrajContext object. The default context settings are |
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25 | shown below. |
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26 | |
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27 | <informaltable> |
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28 | <tgroup cols="2"> |
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29 | <tbody> |
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30 | <row> |
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31 | <entry> |
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32 | <emphasis role="bold">Property</emphasis> |
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33 | </entry> |
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34 | <entry> |
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35 | <emphasis role="bold">Default Setting</emphasis> |
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36 | </entry> |
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37 | </row> |
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38 | <row> |
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39 | <entry> |
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40 | Line colour |
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41 | </entry> |
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42 | <entry> |
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43 | grey |
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44 | </entry> |
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45 | </row> |
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46 | <row> |
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47 | <entry> |
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48 | Line visibility |
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49 | </entry> |
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50 | <entry> |
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51 | true |
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52 | </entry> |
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53 | </row> |
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54 | <row> |
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55 | <entry> |
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56 | Draw line |
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57 | </entry> |
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58 | <entry> |
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59 | true |
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60 | </entry> |
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61 | </row> |
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62 | <row> |
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63 | <entry> |
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64 | Draw auxiliary points |
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65 | </entry> |
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66 | <entry> |
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67 | false |
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68 | </entry> |
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69 | </row> |
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70 | <row> |
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71 | <entry> |
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72 | Auxiliary point type |
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73 | </entry> |
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74 | <entry> |
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75 | squares |
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76 | </entry> |
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77 | </row> |
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78 | <row> |
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79 | <entry> |
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80 | Auxiliary point size |
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81 | </entry> |
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82 | <entry> |
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83 | 2 pixels or mm* |
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84 | </entry> |
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85 | </row> |
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86 | <row> |
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87 | <entry> |
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88 | Auxiliary point size type |
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89 | </entry> |
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90 | <entry> |
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91 | screen |
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92 | </entry> |
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93 | </row> |
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94 | <row> |
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95 | <entry> |
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96 | Auxiliary point fill style |
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97 | </entry> |
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98 | <entry> |
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99 | filled |
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100 | </entry> |
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101 | </row> |
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102 | <row> |
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103 | <entry> |
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104 | Auxiliary point colour |
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105 | </entry> |
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106 | <entry> |
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107 | magenta |
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108 | </entry> |
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109 | </row> |
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110 | <row> |
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111 | <entry> |
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112 | Auxiliary point visibility |
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113 | </entry> |
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114 | <entry> |
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115 | true |
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116 | </entry> |
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117 | </row> |
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118 | <row> |
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119 | <entry> |
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120 | Draw step point |
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121 | </entry> |
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122 | <entry> |
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123 | false |
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124 | </entry> |
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125 | </row> |
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126 | <row> |
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127 | <entry> |
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128 | Step point type |
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129 | </entry> |
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130 | <entry> |
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131 | circles |
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132 | </entry> |
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133 | </row> |
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134 | <row> |
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135 | <entry> |
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136 | Step point size |
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137 | </entry> |
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138 | <entry> |
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139 | 2 pixels or mm* |
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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 | Step point size type |
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145 | </entry> |
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146 | <entry> |
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147 | screen |
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148 | </entry> |
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149 | </row> |
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150 | <row> |
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151 | <entry> |
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152 | Step point fill style |
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153 | </entry> |
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154 | <entry> |
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155 | filled |
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156 | </entry> |
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157 | </row> |
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158 | <row> |
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159 | <entry> |
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160 | Step point colour |
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161 | </entry> |
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162 | <entry> |
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163 | yellow |
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164 | </entry> |
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165 | </row> |
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166 | <row> |
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167 | <entry> |
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168 | Step point visibility |
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169 | </entry> |
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170 | <entry> |
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171 | true |
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172 | </entry> |
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173 | </row> |
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174 | <row> |
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175 | <entry> |
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176 | Time slice interval |
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177 | </entry> |
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178 | <entry> |
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179 | 0 |
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180 | </entry> |
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181 | </row> |
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182 | </tbody> |
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183 | </tgroup> |
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184 | </informaltable> |
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185 | </para> |
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186 | |
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187 | <para> |
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188 | * Depending on size type. If size type == screen, pixels are assumed and no unit need be supplied. If size type == world, a unit must be supplied, e.g., 10 cm. |
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189 | </para> |
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190 | |
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191 | <para> |
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192 | Points to note: |
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193 | |
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194 | <itemizedlist spacing="compact"> |
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195 | <listitem><para> |
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196 | The context approach is intended to replace the configuration |
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197 | through the imode parameter. The use of imode is depreciated and |
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198 | will be removed in Geant4 v10.0. |
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199 | </para></listitem> |
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200 | <listitem><para> |
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201 | Different visualisation drivers handle trajectory configuration |
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202 | in different ways, so trajectories may not necessarily get |
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203 | displayed as you have configured them. |
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204 | </para></listitem> |
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205 | </itemizedlist> |
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206 | </para> |
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207 | |
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208 | </sect2> |
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209 | |
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210 | |
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211 | <!-- ******************* Section (Level#2) ****************** --> |
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212 | <sect2 id="sect.VisEnhTrj.DrdMdl"> |
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213 | <title> |
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214 | Trajectory Drawing Models |
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215 | </title> |
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216 | |
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217 | <para> |
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218 | A trajectory drawing model can override the default context |
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219 | according to the properties of a given trajectory. The following |
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220 | models are supplied with the Geant4 distribution: |
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221 | |
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222 | <itemizedlist spacing="compact"> |
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223 | <listitem><para> |
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224 | G4TrajectoryGenericDrawer (generic) |
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225 | </para></listitem> |
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226 | <listitem><para> |
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227 | G4TrajectoryDrawByCharge (drawByCharge) |
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228 | </para></listitem> |
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229 | <listitem><para> |
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230 | G4TrajectoryDrawByParticleID (drawByParticleID) |
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231 | </para></listitem> |
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232 | <listitem><para> |
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233 | G4TrajectoryDrawByOriginVolume (drawByOriginVolume) |
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234 | </para></listitem> |
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235 | <listitem><para> |
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236 | G4TrajectoryDrawByAttribute (drawByAttribute) |
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237 | </para></listitem> |
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238 | </itemizedlist> |
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239 | </para> |
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240 | |
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241 | <para> |
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242 | Both the context and model properties can be configured by the |
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243 | user. The models are described briefly below, followed by some |
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244 | example configuration commands. |
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245 | </para> |
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246 | |
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247 | <!-- ******* Bridgehead ******* --> |
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248 | <bridgehead renderas='sect4'> |
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249 | G4TrajectoryGenericDrawer |
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250 | </bridgehead> |
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251 | |
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252 | <para> |
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253 | This model simply draws all trajectories in the same style, with |
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254 | the properties provided by the context. |
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255 | </para> |
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256 | |
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257 | <!-- ******* Bridgehead ******* --> |
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258 | <bridgehead renderas='sect4'> |
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259 | G4TrajectoryDrawByCharge |
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260 | </bridgehead> |
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261 | |
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262 | <para> |
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263 | This is the default model - if no model is specified by the user, |
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264 | this model will be constructed automatically. The trajectory lines |
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265 | are coloured according to charge, with all other configuration |
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266 | parameters provided by the default context. The default colouring |
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267 | scheme is shown below. |
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268 | |
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269 | <informalexample> |
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270 | <programlisting> |
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271 | Charge Colour |
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272 | ---------------------- |
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273 | 1 Blue |
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274 | -1 Red |
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275 | 0 Green |
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276 | </programlisting> |
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277 | </informalexample> |
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278 | </para> |
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279 | |
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280 | <!-- ******* Bridgehead ******* --> |
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281 | <bridgehead renderas='sect4'> |
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282 | G4TrajectoryDrawByParticleID |
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283 | </bridgehead> |
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284 | |
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285 | <para> |
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286 | This model colours trajectory lines according to particle type. All |
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287 | other configuration parameters are provided by the default context. |
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288 | By default, all trajectories are coloured grey. Chosen particle |
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289 | types can be highlighted with specified colours. |
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290 | </para> |
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291 | |
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292 | <!-- ******* Bridgehead ******* --> |
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293 | <bridgehead renderas='sect4'> |
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294 | G4TrajectoryDrawByOriginVolume |
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295 | </bridgehead> |
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296 | |
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297 | <para> |
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298 | This model colours trajectory lines according to the trajectories |
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299 | originating volume name. The volume can be either a logical or |
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300 | physical volume. Physical volume takes precedence over logical |
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301 | volume. All trajectories are coloured grey by default. |
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302 | </para> |
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303 | |
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304 | <!-- ******* Bridgehead ******* --> |
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305 | <bridgehead renderas='sect4'> |
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306 | G4TrajectoryDrawByAttribute |
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307 | </bridgehead> |
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308 | |
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309 | <para> |
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310 | This model draws trajectories based on the HepRep style attributes |
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311 | associated with trajectories. Each attribute drawer can be configured |
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312 | with interval and/or single value data. A new context object is |
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313 | created for each interval/single value. This makes it possible to |
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314 | have different step point markers etc, as well as line colour for |
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315 | trajectory attributes falling into different intervals, or matching |
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316 | single values. The single value data should override the interval data, |
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317 | allowing specific values to be highlighted. Units should be specified |
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318 | on the command line if the attribute unit is specified either as a |
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319 | G4BestUnit or if the unit is part of the value string. |
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320 | </para> |
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321 | |
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322 | </sect2> |
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323 | |
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324 | |
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325 | <!-- ******************* Section (Level#2) ****************** --> |
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326 | <sect2 id="sect.VisEnhTrj.CntlComm"> |
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327 | <title> |
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328 | Controlling from Commands |
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329 | </title> |
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330 | |
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331 | <para> |
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332 | Multiple trajectory models can be created and configured using |
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333 | commands in the "<literal>/vis/modeling/trajectories/</literal>" directory. |
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334 | It is then possible to list available models and select one to be |
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335 | current. |
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336 | </para> |
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337 | |
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338 | <para> |
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339 | Model configuration commands are generated dynamically when a |
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340 | model is instantiated. These commands apply directly to that |
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341 | instance. This makes it possible to have multiple instances of the |
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342 | drawByCharge model for example, each independently configurable |
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343 | through it's own set of commands. |
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344 | </para> |
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345 | |
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346 | <para> |
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347 | See the interactive help for more information on the available |
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348 | commands. |
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349 | </para> |
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350 | |
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351 | <!-- ******************* Section (Level#3) ****************** --> |
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352 | <sect3 id="sect.VisEnhTrj.CntlComm.ExpComm"> |
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353 | <title> |
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354 | Example commands |
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355 | </title> |
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356 | |
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357 | <para> |
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358 | #Create a generic model named generic-0 by default |
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359 | |
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360 | <informalexample> |
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361 | <programlisting> |
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362 | /vis/modeling/trajectories/create/generic |
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363 | </programlisting> |
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364 | </informalexample> |
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365 | </para> |
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366 | |
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367 | <para> |
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368 | #Configure context to colour all trajectories red |
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369 | |
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370 | <informalexample> |
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371 | <programlisting> |
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372 | /vis/modeling/trajectories/generic-0/default/setLineColour red |
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373 | </programlisting> |
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374 | </informalexample> |
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375 | </para> |
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376 | |
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377 | <para> |
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378 | #Create a drawByCharge model named drawCharge-0 by default |
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379 | (Subsequent models will be named drawByCharge-1, drawByCharge-2, |
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380 | etc.) |
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381 | |
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382 | <informalexample> |
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383 | <programlisting> |
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384 | /vis/modeling/trajectories/create/drawByCharge |
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385 | </programlisting> |
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386 | </informalexample> |
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387 | </para> |
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388 | |
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389 | <para> |
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390 | #Create a drawByCharge model named testChargeModel |
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391 | |
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392 | <informalexample> |
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393 | <programlisting> |
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394 | /vis/modeling/trajectories/create/drawByCharge testChargeModel |
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395 | </programlisting> |
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396 | </informalexample> |
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397 | </para> |
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398 | |
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399 | <para> |
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400 | #Configure drawByCharge-0 model |
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401 | |
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402 | <informalexample> |
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403 | <programlisting> |
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404 | /vis/modeling/trajectories/drawByCharge-0/set 1 red |
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405 | /vis/modeling/trajectories/drawByCharge-0/set -1 red |
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406 | /vis/modeling/trajectories/drawByCharge-0/set 0 white |
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407 | </programlisting> |
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408 | </informalexample> |
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409 | </para> |
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410 | |
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411 | <para> |
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412 | #Configure testCharge model through G4Colour components |
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413 | |
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414 | <informalexample> |
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415 | <programlisting> |
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416 | /vis/modeling/trajectories/testChargeModel/setRGBA 1 0 1 1 1 |
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417 | /vis/modeling/trajectories/testChargeModel/setRGBA -1 0.5 0.5 0.5 1 |
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418 | /vis/modeling/trajectories/testChargeModel/setRGBA 0 1 1 0 1 |
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419 | </programlisting> |
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420 | </informalexample> |
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421 | </para> |
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422 | |
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423 | <para> |
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424 | #Create a drawByParticleID model named drawByParticleID-0 |
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425 | |
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426 | <informalexample> |
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427 | <programlisting> |
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428 | /vis/modeling/trajectories/create/drawByParticleID |
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429 | </programlisting> |
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430 | </informalexample> |
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431 | </para> |
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432 | |
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433 | <para> |
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434 | #Configure drawByParticleID-0 model |
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435 | |
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436 | <informalexample> |
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437 | <programlisting> |
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438 | /vis/modeling/trajectories/drawByParticleID-0/set gamma red |
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439 | /vis/modeling/trajectories/drawByParticleID-0/setRGBA e+ 1 0 1 1 |
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440 | </programlisting> |
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441 | </informalexample> |
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442 | </para> |
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443 | |
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444 | <para> |
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445 | #List available models |
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446 | |
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447 | <informalexample> |
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448 | <programlisting> |
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449 | /vis/modeling/trajectories/list |
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450 | </programlisting> |
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451 | </informalexample> |
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452 | </para> |
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453 | |
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454 | <para> |
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455 | #select drawByParticleID-0 to be current |
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456 | |
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457 | <informalexample> |
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458 | <programlisting> |
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459 | /vis/modeling/trajectories/select drawByParticleID-0 |
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460 | </programlisting> |
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461 | </informalexample> |
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462 | </para> |
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463 | |
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464 | <para> |
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465 | #Create a drawByAttribute model named drawByAttribute-0 |
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466 | |
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467 | <informalexample> |
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468 | <programlisting> |
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469 | /vis/modeling/trajectories/create/drawByAttribute |
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470 | </programlisting> |
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471 | </informalexample> |
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472 | </para> |
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473 | |
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474 | <para> |
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475 | #Configure drawByAttribute-0 model |
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476 | |
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477 | <informalexample> |
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478 | <programlisting> |
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479 | /vis/modeling/trajectories/drawByAttribute-0/verbose true |
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480 | </programlisting> |
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481 | </informalexample> |
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482 | </para> |
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483 | |
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484 | <para> |
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485 | #Select attribute "CPN" |
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486 | |
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487 | <informalexample> |
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488 | <programlisting> |
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489 | /vis/modeling/trajectories/drawByAttribute-0/setAttribute CPN |
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490 | </programlisting> |
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491 | </informalexample> |
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492 | </para> |
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493 | |
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494 | <para> |
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495 | #Configure single value data |
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496 | |
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497 | <informalexample> |
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498 | <programlisting> |
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499 | /vis/modeling/trajectories/drawByAttribute-0/addValue brem_key eBrem |
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500 | /vis/modeling/trajectories/drawByAttribute-0/addValue annihil_key annihil |
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501 | /vis/modeling/trajectories/drawByAttribute-0/addValue decay_key Decay |
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502 | /vis/modeling/trajectories/drawByAttribute-0/addValue muIon_key muIoni |
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503 | /vis/modeling/trajectories/drawByAttribute-0/addValue eIon_key eIoni |
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504 | |
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505 | /vis/modeling/trajectories/drawByAttribute-0/brem_key/setLineColour red |
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506 | /vis/modeling/trajectories/drawByAttribute-0/annihil_key/setLineColour green |
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507 | /vis/modeling/trajectories/drawByAttribute-0/decay_key/setLineColour cyan |
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508 | /vis/modeling/trajectories/drawByAttribute-0/eIon_key/setLineColour yellow |
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509 | /vis/modeling/trajectories/drawByAttribute-0/muIon_key/setLineColour magenta |
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510 | </programlisting> |
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511 | </informalexample> |
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512 | </para> |
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513 | |
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514 | <para> |
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515 | #Create a drawByAttribute model named drawByAttribute-1 |
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516 | |
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517 | <informalexample> |
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518 | <programlisting> |
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519 | /vis/modeling/trajectories/create/drawByAttribute |
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520 | </programlisting> |
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521 | </informalexample> |
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522 | </para> |
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523 | |
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524 | <para> |
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525 | #Select "IMag" attribute |
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526 | |
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527 | <informalexample> |
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528 | <programlisting> |
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529 | /vis/modeling/trajectories/drawByAttribute-1/setAttribute IMag |
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530 | </programlisting> |
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531 | </informalexample> |
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532 | </para> |
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533 | |
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534 | <para> |
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535 | #Configure interval data |
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536 | |
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537 | <informalexample> |
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538 | <programlisting> |
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539 | /vis/modeling/trajectories/drawByAttribute-1/addInterval interval1 0.0 keV 2.5MeV |
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540 | /vis/modeling/trajectories/drawByAttribute-1/addInterval interval2 2.5 MeV 5 MeV |
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541 | /vis/modeling/trajectories/drawByAttribute-1/addInterval interval3 5 MeV 7.5 MeV |
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542 | /vis/modeling/trajectories/drawByAttribute-1/addInterval interval4 7.5 MeV 10 MeV |
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543 | /vis/modeling/trajectories/drawByAttribute-1/addInterval interval5 10 MeV 12.5 MeV |
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544 | /vis/modeling/trajectories/drawByAttribute-1/addInterval interval6 12.5 MeV 10000 MeV |
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545 | |
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546 | /vis/modeling/trajectories/drawByAttribute-1/interval1/setLineColourRGBA 0.8 0 0.8 1 |
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547 | /vis/modeling/trajectories/drawByAttribute-1/interval2/setLineColourRGBA 0.23 0.41 1 1 |
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548 | /vis/modeling/trajectories/drawByAttribute-1/interval3/setLineColourRGBA 0 1 0 1 |
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549 | /vis/modeling/trajectories/drawByAttribute-1/interval4/setLineColourRGBA 1 1 0 1 |
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550 | /vis/modeling/trajectories/drawByAttribute-1/interval5/setLineColourRGBA 1 0.3 0 1 |
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551 | /vis/modeling/trajectories/drawByAttribute-1/interval6/setLineColourRGBA 1 0 0 1 |
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552 | </programlisting> |
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553 | </informalexample> |
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554 | </para> |
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555 | |
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556 | </sect3> |
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557 | </sect2> |
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558 | |
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559 | |
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560 | <!-- ******************* Section (Level#2) ****************** --> |
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561 | <sect2 id="sect.VisEnhTrj.CntlCmpl"> |
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562 | <title> |
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563 | Controlling from Compiled Code |
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564 | </title> |
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565 | |
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566 | <para> |
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567 | It is possible to use the enhanced trajectory drawing functionality |
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568 | in compiled code as well as from commands. Multiple trajectory |
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569 | models can be instantiated, configured and registered with |
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570 | G4VisManager. Only one model may be current. For example: |
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571 | |
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572 | <informalexample> |
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573 | <programlisting> |
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574 | G4VisManager* visManager = new G4VisExecutive; |
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575 | visManager->Initialize(); |
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576 | |
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577 | G4TrajectoryDrawByParticleID* model = new G4TrajectoryDrawByParticleID; |
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578 | G4TrajectoryDrawByParticleID* model2 = new G4TrajectoryDrawByParticleID("test"); |
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579 | |
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580 | model->SetDefault("cyan"); |
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581 | model->Set("gamma", "green"); |
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582 | model->Set("e+", "magenta"); |
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583 | model->Set("e-", G4Colour(0.3, 0.3, 0.3)); |
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584 | |
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585 | visManager->RegisterModel(model); |
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586 | visManager->RegisterModel(model2); |
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587 | |
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588 | visManager->SelectTrajectoryModel(model->Name()); |
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589 | </programlisting> |
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590 | </informalexample> |
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591 | </para> |
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592 | |
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593 | </sect2> |
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594 | |
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595 | |
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596 | <!-- ******************* Section (Level#2) ****************** --> |
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597 | <sect2 id="sect.VisEnhTrj.DrwByTime"> |
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598 | <title> |
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599 | Drawing by time |
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600 | </title> |
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601 | |
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602 | <para> |
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603 | To draw by time, you need to use G4RichTrajectory, for example: |
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604 | |
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605 | <informalexample> |
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606 | <programlisting> |
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607 | /vis/scene/add/trajectories rich |
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608 | </programlisting> |
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609 | </informalexample> |
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610 | |
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611 | or |
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612 | |
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613 | <informalexample> |
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614 | <programlisting> |
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615 | /vis/scene/add/trajectories rich smooth |
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616 | </programlisting> |
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617 | </informalexample> |
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618 | </para> |
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619 | |
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620 | <para> |
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621 | When you run, you need to create a trajectory model and set the |
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622 | time slice interval (remembering that paticles are often |
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623 | relativistic and travel 30 cm/ns): |
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624 | |
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625 | <informalexample> |
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626 | <programlisting> |
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627 | /vis/modeling/trajectories/create/drawByCharge |
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628 | /vis/modeling/trajectories/drawByCharge-0/default/setDrawStepPts true |
---|
629 | /vis/modeling/trajectories/drawByCharge-0/default/setStepPtsSize 5 |
---|
630 | /vis/modeling/trajectories/drawByCharge-0/default/setDrawAuxPts true |
---|
631 | /vis/modeling/trajectories/drawByCharge-0/default/setAuxPtsSize 5 |
---|
632 | /vis/modeling/trajectories/drawByCharge-0/default/setTimeSliceInterval 0.1 ns |
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633 | /vis/modeling/trajectories/list |
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634 | </programlisting> |
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635 | </informalexample> |
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636 | |
---|
637 | and use a graphics driver that can display by time: |
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638 | |
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639 | <informalexample> |
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640 | <programlisting> |
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641 | /vis/open OGLSX |
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642 | /vis/drawVolume |
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643 | /vis/scene/add/trajectories rich |
---|
644 | /vis/ogl/set/startTime 0.5 ns |
---|
645 | /vis/ogl/set/endTime 0.8 ns |
---|
646 | /run/beamOn |
---|
647 | /vis/viewer/refresh |
---|
648 | </programlisting> |
---|
649 | </informalexample> |
---|
650 | </para> |
---|
651 | |
---|
652 | <para> |
---|
653 | A good way to see the particles moving through the detector is: |
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654 | |
---|
655 | <informalexample> |
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656 | <programlisting> |
---|
657 | /vis/ogl/set/fade 1 |
---|
658 | /vis/ogl/set/displayHeadTime true |
---|
659 | /control/alias timeRange 1 |
---|
660 | /control/loop movie.loop -{timeRange} 40 0.1 |
---|
661 | </programlisting> |
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662 | </informalexample> |
---|
663 | |
---|
664 | where <literal>fade</literal> gives a vapour-trail effect, |
---|
665 | <literal>displayHeadTime</literal> displays the time of the leading edge as |
---|
666 | 2D text, and <literal>movie.loop</literal> is a macro file: |
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667 | |
---|
668 | <informalexample> |
---|
669 | <programlisting> |
---|
670 | /vis/ogl/set/startTime {startTime} ns {timeRange} ns |
---|
671 | </programlisting> |
---|
672 | </informalexample> |
---|
673 | </para> |
---|
674 | |
---|
675 | <para> |
---|
676 | From there, it's straightforward to <xref linkend="sect.MkMovie" /> |
---|
677 | make a movie. |
---|
678 | </para> |
---|
679 | |
---|
680 | |
---|
681 | </sect2> |
---|
682 | </sect1> |
---|
683 | |
---|