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[430] | 1 | <head> |
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| 2 | <title>SXF</title> |
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| 3 | <!-- Changed by: Chris ISELIN, 27-Jan-1997 --> |
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| 4 | <!-- Changed by: Hans Grote, 4-Dec-2002 --> |
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| 5 | </head> |
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| 6 | |
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| 7 | <body bgcolor="#ffffff"> |
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| 8 | |
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| 9 | <h2><a name=sxf>SXF file input and output</a></h2> |
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| 10 | The command |
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| 11 | <pre> |
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| 12 | SXFWRITE,FILE=filename; |
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| 13 | </pre> |
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| 14 | writes the currently (i.e. last) USEd sequence with all alignment |
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| 15 | and field errors in <a |
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| 16 | href="../Introduction/bibliography.html#SXF">[SXF]</a> format onto the |
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| 17 | file specified. This then represents one "instance" of the sequence, |
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| 18 | where all parameters are given by numbers rather than expressions; the |
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| 19 | file can be read by other programs to get a complete picture of the |
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| 20 | sequence. |
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| 21 | <p> |
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| 22 | The command |
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| 23 | <pre> |
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| 24 | SXFREAD,FILE=filename; |
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| 25 | </pre> |
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| 26 | reads a file in SXF format, stores the sequence away and USEs it(!) in order |
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| 27 | to keep the existing errors. The following does therefore work: |
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| 28 | <p> |
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| 29 | Example: |
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| 30 | <pre> |
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| 31 | job 1: |
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| 32 | |
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| 33 | ! define sequence MYSEQU |
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| 34 | |
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| 35 | use,mysequ; |
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| 36 | |
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| 37 | ! add alignment errors and field errors |
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| 38 | |
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| 39 | sxfwrite,file=file; |
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| 40 | stop; |
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| 41 | |
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| 42 | job 2: |
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| 43 | |
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| 44 | sxfread,file=file; |
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| 45 | twiss; |
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| 46 | stop; |
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| 47 | |
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| 48 | </pre> |
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| 49 | |
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| 50 | <address> |
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| 51 | <a href="http://www.cern.ch/Hans.Grote/hansg_sign.html">hansg</a>, |
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| 52 | January 24, 1997 |
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| 53 | </address> |
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| 54 | |
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| 55 | </body> |
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