Changes between Version 2 and Version 3 of Ticket #11880


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Timestamp:
09/30/11 20:09:55 (8 years ago)
Author:
leif
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  • Ticket #11880 – Description

    v2 v3  
    55}}}
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    7 That is a *first implementation* of an interface between Sage and the Graph Classes database ISGCI [1]. With this interface, the XML content of the database can be read using dictionaries and lists (much easier to work with), and some operations are implemented like the comparison (relatively to inclusion) of graph classes.
     7That is a '''first implementation''' of an interface between Sage and the Graph Classes database ISGCI ![1]. With this interface, the XML content of the database can be read using dictionaries and lists (much easier to work with), and some operations are implemented like the comparison (relatively to inclusion) of graph classes.
    88
    99There will be more work needed on this new feature, for instance the implementation of an easy way to query the database.
    1010
    11 Along with the patch, two .sobj files should be added to the directory ``SAGE_ROOT/data/graphs/``. These files are a .sobj version of the database, that I created on my own computer.
     11Along with the patch, two `.sobj` files should be added to the directory `$SAGE_ROOT/data/graphs/`. These files are an `.sobj` version of the database that I created on my own computer.
    1212
    13 When this patch will be merged to Sage, it is likely that users that do not update their version of Sage will progressively then be working with an outdated version of the database, as the version will be the one used the day they downloaded their copy of Sage. To avoid that, this patch implements a function ``sage.graphs.isgci.update_db`` that downloads a new version of the database from ISGCI's website and updates the current .sobj files.
     13When this patch will be merged into Sage, it is likely that users that do not update their version of Sage will progressively then be working with an outdated version of the database, as the version will be the one used the day they downloaded their copy of Sage. To avoid that, this patch implements a function `sage.graphs.isgci.update_db()` that downloads a new version of the database from ISGCI's website and updates the current `.sobj` files.
    1414
    1515Hence, instead of using my two files attached to this ticket, one can also call this method which will create them automatically.
    … …  
    1717I tried to make the documentation clear enough about all that is currently possible with ISGCI.
    1818
    19 Apply: [attachment:trac_11880.patch]
    20 
    21 One of the discussions on Sage-devel related to this database : https://groups.google.com/forum/#!searchin/sage-devel/This$20is$20the$20copy$20of$20several$20mails$20concerning$20ISGCI$20and$20what$20we$20could$20do$20with/sage-devel/N05a9w_UrIA/XGlVD7NT7p4J
     19One of the discussions on sage-devel related to this database: [http://groups.google.com/forum/#!searchin/sage-devel/This$20is$20the$20copy$20of$20several$20mails$20concerning$20ISGCI$20and$20what$20we$20could$20do$20with/sage-devel/N05a9w_UrIA/XGlVD7NT7p4J]
    2220
    2321Nathann
    2422
    25 [1] http://www.graphclasses.org/
     23![1] http://www.graphclasses.org/
     24
     25----
     26
     27Apply [attachment:trac_11880.patch] to the Sage library.