| 摘要 |
The present invention provides a method and apparatus for displaying a grouped structure (23) in a computer graphics image. This involves providing at least one selection tag (18) for the grouped structure. A group display mode is used so that, when a selection tar (18) of the grouped structure is selected, portions (25,26) of the structure of the group structured are determined. The portions (25,26) of the structure of the grouped structure (23) are then displayed. Preferably, the displayed portions (25,26) initially comprise a top level portion (25) of the grouped structure (23). This further involves displaying further levels (26) of the grouped structure (23). Preferably, the displayed portions of the structure are displayed in a tree format. Optionally, the tree format includes nodes (25,26) denoting part of the grouped structure (23). This involves providing means for selecting a current node (26) within the tree format and displaying at least the child nodes (27,28), if any, of the current node (26), upon selection of the current node (26). Optionally, a sub-portion of the displayed portions of the structure can be selected and interactive access can be provided to the selected sub-portion.
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