| 1 | Configuration = set of program options. <br>
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| 2 | The program options of all components running to operate the telescope
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| 3 | can be set via <ul>
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| 4 | <li> database</li>
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| 5 | <li> setup-file, e.g. program.rc</li>
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| 6 | <li> or command line option</li>
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| 7 | </ul>
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| 8 |
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| 9 | A history of the configuration inserted into the database is kept.
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| 10 | Therefore, the configuration of the telescope at any time can be
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| 11 | viewed, and configurations of different timestamps can be compared.
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| 12 | <br>
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| 13 | <br>
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| 14 |
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| 15 | <u>The display</u>:
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| 16 | <ul>
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| 17 | <li> additional (new) program options on the right side are displayed
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| 18 | in <font color='green'>green</font></li>
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| 19 | <li> additional (old) program options on the left side are displayed in
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| 20 | <font color='red'>red</font></li>
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| 21 | <li> program options where only the value has changed, are displayed in
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| 22 | <font color='blue'>blue</font></li>
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| 23 | <li> by default program, key, value and type are displayed. You can
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| 24 | display additional columns (for the two configurations independently).</li>
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| 25 | <li> for the time stamp, you can select between the 'pulldown' menus or
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| 26 | a 'text input' where you can enter the timestamp.
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| 27 | <li> in case the timestamp is empty, the current configuration is
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| 28 | shown.</li>
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| 29 | <li> 'next/prev time stamp' and 'reset dates' directly issue the
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| 30 | display and comparison of the configurations. When you select a
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| 31 | timestamp by hand, you have to click 'show / compare'</li>
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| 32 | <li> a subset of program options can be view by specifying the program
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| 33 | and/or the key. </li>
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| 34 | </ul>
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| 35 | <br>
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