DRAW Reference Manual
Labelling
:
Autotagging
: Tag Rule Editing
Tag Rule Editing
TRLB, TRST and TAGR elements may all be modified in the usual way by changing their attribute settings (although with TRLB and TRST elements only the standard attributes, e.g. Name, are settable). Note, however, that editing these elements could cause existing Labels to no longer represent the TAGR definition.
If a TAGR owned by a LAYE is deleted or included in another LAYE then the SORF attribute of all labels generated from it will be set to Nulref. It is not feasible to do this for TAGRs owned by TRSTs (because many labels in several databases may be affected) or to set to Nulref SORF attributes for any other changes to TAGRs (because a change may broaden the scope of the TAGR so that existing Labels are still valid). If changes are made to a TAGR or TRST that potentially cause database inconsistencies then a warning message will be output.
If a TAGR’s TMRF attribute is changed then, at the next UPDATE TAGG command, an implicit UPDATE TAGGING OVERWRITE operation will be performed, which will make sure that the correct appearance of existing labels is maintained. If the TMRF is changed from one TXTM or SYTM to another TXTM or SYTM then existing label edits will be kept. If the TMRF is changed in a different way (e.g. GLAB to GLAB or SYTM to SLAB) then existing Label edits will be lost.
1974 to current year.
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