leda Advanced User Guide site

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The http front-end is coded with HTML 4.0 and Javascript 1.2 and is tested with Netscape 4.0 and IE 4.
Note that for requests returning large volume of data or for multiple and repetitive requests it may be more convenient to access HyperLeda from a script, for example using wget, than from a web browser (the data may overflow its memory).
The http requests are issued with the GET method, as:
http://leda.univ-lyon1.fr/fG.cgi?n=1&c=o&o=NGC3379
Main requests
Other requests are also used, in particular for the graphic outputs, but they may be integrated to G.cgi and fG.cgi in the future.

Main parameters
A query to HyperLeda is composed in five elements (1) the type of request, (2) the selection in HyperLeda master index, (2) filtering according to some parameters, (4) action performed on the extracted data (pipeline) and (5) output formatting. The corresponding parameters are:



HyperLeda Questions: leda@univ-lyon1.fr