[1] | 1 | <chapter name="Save Settings"> |
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| 2 | |
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| 3 | <h2>Save Settings</h2> |
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| 4 | |
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| 5 | The information on this webpage is only valid if you access the PHP |
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| 6 | dynamic webpages via a web browser, and does not apply to the static |
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| 7 | HTML equivalents. With PHP, all of the settings in the PYTHIA program |
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| 8 | are represented by radio buttons or fill-in boxes, that makes it easy |
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| 9 | for you to construct a file with your desired changes. This file can |
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| 10 | then be read into PYTHIA by your main program to steer the whole run. |
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| 11 | |
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| 12 | <h3>Basic instructions</h3> |
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| 13 | |
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| 14 | The functionality of the PHP option is described in the following. |
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| 15 | |
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| 16 | <p/> |
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| 17 | <table border="2" cellpadding="5"><td> |
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| 18 | <PHPFILECODE/> |
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| 19 | </td></table> |
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| 20 | |
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| 21 | <ul> |
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| 22 | |
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| 23 | <p/><li> |
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| 24 | To begin with, you must specify a <b>(temporary) file name</b> in the |
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| 25 | box above. If the filename already exists on the server, you will be |
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| 26 | requested to pick a new name.</li> |
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| 27 | |
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| 28 | <p/><li> |
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| 29 | Once you have <b>Submit</b>ted your filename, you can browse through the |
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| 30 | pages and make your selections. The values currently selected when you |
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| 31 | load the page are the default values.</li> |
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| 32 | |
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| 33 | <p/><li> |
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| 34 | When you have finished making your changes to a particular page, |
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| 35 | you <b>must</b> click on <b>Save Settings</b> at the <b>bottom</b> of |
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| 36 | the page. This will write the changes to your temporary file. If you make |
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| 37 | a mistake, just repeat the procedure for that category again.<br> |
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| 38 | |
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| 39 | <p/><li> |
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| 40 | When you have finished all the changes you need, return to this page |
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| 41 | and click <b>Finish File</b>.</li> |
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| 42 | |
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| 43 | <p/><li> |
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| 44 | You will then get up a link, that you are asked to <b>right-click</b> |
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| 45 | with your mouse (or equivalent).</li> |
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| 46 | |
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| 47 | <p/><li> |
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| 48 | In the menu that appears, pick the option <b>Save Link As</b> |
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| 49 | (or equivalent).</li> |
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| 50 | |
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| 51 | <p/><li> |
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| 52 | You will now get up a file browser, for you to pick and <b>Save</b> |
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| 53 | the location and file name (the latter by default the same as the |
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| 54 | temporary file name).</li> |
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| 55 | |
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| 56 | <p/><li> |
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| 57 | At any time, if you click the <b>RESET</b> button, your temporary |
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| 58 | file will be erased and you can start anew.</li> |
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| 59 | |
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| 60 | <p/><li> |
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| 61 | Before you use a file, be sure to <b>check it visually</b> to confirm |
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| 62 | that you saved what you intended to. Minor corrections are easily made |
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| 63 | in a text editor. |
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| 64 | </li> |
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| 65 | |
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| 66 | </ul> |
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| 67 | |
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| 68 | <p/> |
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| 69 | <h3>Supplementary notes</h3> |
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| 70 | |
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| 71 | |
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| 72 | The documentation files exist in three versions. |
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| 73 | <ol> |
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| 74 | |
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| 75 | <p/><li> |
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| 76 | As a set of <code>.xml</code> files, in the <code>xmldoc/</code> |
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| 77 | subdirectory. These are the master copies that no user ever should |
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| 78 | touch, but that are used to generate the variants below.</li> |
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| 79 | |
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| 80 | <p/><li> |
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| 81 | As a set of <code>.html</code> files, in the <code>htmldoc/</code> |
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| 82 | subdirectory. You can open your own locally installed copy of the |
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| 83 | <code>Welcome.html</code> file in your web browser and thereafter |
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| 84 | navigate among all the pages. You can learn which parameters are free |
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| 85 | to be changed, but not change anything, except by brute-force |
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| 86 | cut-and-paste to a file of your own.</li> |
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| 87 | |
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| 88 | <p/><li> |
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| 89 | As a set of <code>.php</code> files, in the <code>phpdoc/</code> |
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| 90 | subdirectory. For these files to provide the functionality described |
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| 91 | above they have to accessed via a webserver. The one where you have |
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| 92 | your homepage should work fine. Alternatively you can use pages already |
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| 93 | available on another server.</li> |
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| 94 | |
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| 95 | </ol> |
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| 96 | |
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| 97 | <p/> |
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| 98 | A few further comments about the operation of the PHP option: |
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| 99 | <ul> |
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| 100 | |
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| 101 | <p/><li> |
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| 102 | To set up the PHP files on your webserver, you have to install the whole |
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| 103 | <code>phpdoc/</code> subdirectory there. In addition to the |
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| 104 | <code>.php</code> code this includes a few more files, plus a |
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| 105 | subdirectory named <code>files</code> where the temporary files |
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| 106 | are stored. This subdirectory must have public write access to work |
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| 107 | (<code>chmod a+w files</code> if not).</li> |
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| 108 | |
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| 109 | <p/><li> |
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| 110 | The "temporary" files stored in <code>files</code> actually remain |
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| 111 | unless the RESET button is used. The good news is that this makes |
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| 112 | it possible to recover a file that otherwise might be lost. The bad |
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| 113 | news is that the <code>files</code> directory may need to be cleaned |
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| 114 | up from time to time. (But typically the files are pretty small, so |
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| 115 | this should not be a major problem.)</li> |
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| 116 | |
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| 117 | <p/><li> |
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| 118 | When you click the <b>Save Settings</b> button on the bottom of a page |
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| 119 | all changed settings are written on the temporary file in the format |
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| 120 | <pre> |
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| 121 | name-of-flag/mode/parameter/word = value |
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| 122 | </pre> |
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| 123 | with one variable per line. Thereafter all the settings on the page |
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| 124 | are restored to their default values.</li> |
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| 125 | |
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| 126 | <p/><li> |
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| 127 | You can return to a page to do some further changes and save those. |
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| 128 | If you change the same parameter twice, it is the last value that |
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| 129 | counts. (Both values are stored in the file, with the more recent |
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| 130 | lower down, and then PYTHIA does the changes sequentially.) However |
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| 131 | remember that unchanged values are not stored, so if you want to |
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| 132 | restore some default value it may be simpler to edit the file |
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| 133 | afterwards.</li> |
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| 134 | |
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| 135 | <p/><li> |
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| 136 | The changeable flags/modes/parameters/words are mainly in the |
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| 137 | "Setup Run Tasks" section of the index, but a few (less |
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| 138 | frequently used ones) can also be found lower down, in the |
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| 139 | "Study Output" and "Link to Other Programs" pages. |
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| 140 | |
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| 141 | <p/><li> |
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| 142 | It is not (yet) possible to modify particle data within the PHP-based |
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| 143 | setup approach. This is a more difficult task, since e.g. the |
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| 144 | modifications one may want to do in a decay table can be quite |
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| 145 | interrelated. |
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| 146 | |
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| 147 | </chapter> |
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| 148 | |
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| 149 | <!-- Copyright (C) 2012 Torbjorn Sjostrand --> |
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| 150 | |
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