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Changes between Version 244 and Version 245 of ippToPsps


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Timestamp:
Apr 3, 2012, 10:02:56 AM (14 years ago)
Author:
rhenders
Comment:

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  • ippToPsps

    v244 v245  
    8383DVO has an API written in C that can be used to extract detection records for a give 'IMAGEID' found in cmf and smf file headers (see note below regarding IMAGEID confusion). The usual case is that {{{ippToPsps}}} uses this form of DVO access using a small C program called {{{dvograbber}}}, the source for which is in the {{{ippToPsps/src}}} directory.
    8484
    85 {{{ippToPsps}}} has a second way of accessing DVO, which is only intended to be used in the special case of surveys (like MD4), or areas of surveys, have very high coverege in a certain area of sky meaning the underlying DVO FITS grow to a very large large size. For such areas, it becomes unfeasible to access DVO via the C api as repeatedly reading FITS files as large as 2GB causes read tiumes of up to hours per frame.
     85{{{ippToPsps}}} has a second way of accessing DVO, which is only intended to be used in the special case of surveys (like MD4), or areas of surveys, have very high coverege in a certain area of sky meaning the underlying DVO FITS grow to a very large large size. For such areas, it becomes unfeasible to access DVO via the C api as repeatedly reading FITS files as large as 2GB causes read times of up to hours per frame.
    8686
    8787Instead, for these regions, {{{ippToPsps}}} can pre-ingest a region of DVO into a scratch MySQL database.