详细描述

Macro Definition Documentation

◆  NGON_FLAG_NOVALIDATION

Forces the N-gon manager to ignore any validation checks when a changed message is sent to the polygon object.
The flag is reset on the next changed message that the N-gons get from the polygon object.

◆  NGON_FLAG_NOCHANGE

Forces the N-gon manager to ignore any validation checks when a changed message is sent to the polygon object.
This is not reset and must be removed manually once any N-gon changes are completed.

◆  NGON_FLAG_NOTRANSLATE

Stops the N-gon manager from doing a translation of the polygon indexes/internal data when the polygons are changed (i.e. when the polygon object receives MSG_POLYGONS_CHANGED ). This can be used to prevent the N-gons getting changed when making changes to an object.
For example, in the HyperNURBS object the object needs to be resized; doing this sends the MSG_POLYGONS_CHANGED message and hence changes the N-gons too.
But the HyperNURBS object needs the N-gon data unchanged (i.e. to prevent pointers changing, indexes changing).

◆  NGON_FLAG_SETASVALID

Block N-gons from validating completely but let them update their validation data.
Set ONLY if the polygon indices might have changed but are known to be valid N-gons.
The flag is auto removed once used.