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XML Configuration Files: Standards and Best Practices

Guide to define common dictionary for XML config files. Align with OT.XML definition. Use standard notation and ACSIS examples. Ensure clear specifications and avoid ambiguous terms.

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XML Configuration Files: Standards and Best Practices

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  1. XML Generalisation Tim Jenness JCMT Interfaces Meeting / April 2nd-6th 2001

  2. Goals • Define common dictionary for XML configuration files generated by the translator • Match the OT XML definition as closely as possible

  3. Examples • Use <rest_frequency units=“??”> rather than <rest_freq> • Use <sideband> rather than <sb> • Specify numeric ranges in standard way: • <range units=“km/s”> • <min>-10.0</min> • <max>100.0</max> • </range>

  4. ACSIS • Will use TCS target specification to determine map centre (as opposed to tracking centre) and scan area (including map position angle) • Baseline regions are specified as a collection of <range> elements. • <spw_assoc> uses XML ID’s and IDREFS explicitly

  5. ACSIS example - decimation • <archive> tag now replaced explicitly by <decimation> specification: • <decimation> • <range> <min>A</min> <max>B</max> • </range> • <increment>N</increment> • </decimation> • rather than <archive>A:B:N</archive>

  6. Frontend • Uses <freq_offset_scale units=“??”> so this is how the OT must specify frequency switching

  7. Undecided • Where to specify host names for specific drama tasks • IP aliases: • tcs.jcmt.jach.hawaii.edu? • Slave1.jcmt.jach.hawaii.edu? • Ws.jcmt.jach.hawaii.edu ? • Specify names in wiring file

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