packet (surface filter)

Description

In Regina 6.0.1 and earlier, the packet element was used to store every packet in the entire packet tree that makes up a Regina data file. This page describes how the packet element was structured when storing a surface filter. Since Regina 7.0, each packet type has its own XML element; in particular, surface filter packets are now stored using the filtercomb, filterprop and filtertrivial elements.

A surface filter packet can be used to filter normal surfaces from a large collection (such as a normal surface list).

The details of the filter are stored in the child filter element.

The roles played by the child tag and packet elements are described in the general packet element documentation.