Topic:
Horizon attribute erase is not deleting the selected origin.

Description:
All interpretation that was upgraded from an IESX 10px project and/or loaded
via ASCII import will have an origin of 'unknown'. If 'unknown' is selected for
erase and interpretation is not removed, then select all origins and the
interpretation will be removed. This is a known bug in 3.1.x where some origin
values were assigned as 'null' so they have no origin. 

Solution:
The permanent fix is to:

In DataManager > Interpretation > Change origin..., 

1) Select unknown origin type in 'Origin types to change'.

2) Select one origin type in 'New origin type'. and apply. 

(In this option, you can select and change all horizons to change origins.)
When you select the unknown origin type to change from, it actually will select
the null values and change them to whatever you want.
 
Fixed in GeoFrame 3.5.

BasemapPlus in GeoFrame 3.5 will have the ability to post the origin type and
any null values (if they are present) will be posted as 'unknown'.




Last Modified on: 03-OCT-00