Fixed up change_identifier functions to have a single group parameter, but requiring data_offset, element_offset, face_offset, line_offset and node_offset to be set for any of their identifiers to be changed. These are simple offsets to the current identifiers, but when the sort_by field is specified they are starting absolute object numbers; all such objects in the group are then numbered sequentially in the order of the sort_by field, changing in the earlier components fastest (ie. the later components are more significant).
Fixed up change_identifier functions to have a single group parameter,
but requiring data_offset, element_offset, face_offset, line_offset
and node_offset to be set for any of their identifiers to be
changed. These are simple offsets to the current identifiers, but when
the sort_by field is specified they are starting absolute object
numbers; all such objects in the group are then numbered sequentially in
the order of the sort_by field, changing in the earlier components
fastest (ie. the later components are more significant).


cmiss/cmgui,cmiss/cmgui