Topic:
How to change the position of a synthetic in Seis3DV/2DV?

Description:
        

Solution:
This description assumes you have succesfully loaded or created a synthetic.

Manual placement of posted synthetics is accomplished by the Synthetic 
placement menu in Tools > Synthetic option.

1. Clicking MB1 on a posted synthetic, while in Synthetic placement mode, will
   cause a box covering the overlaid synthtic trace to attach to the cursor.
2. Click MB1 again to move the synthetic to a desired location and click 
   MB1 again to place.

Once placed, finer adjustments can be made using the arrow buttons from the
Synthetic placement menu. the Right and Left arrows will move the synthetic
overlay by 1/2 of a trace, while Up and Down arrows will move it up and down 
by 1/2 of a sample.

It may be necessary to select the Display>Redisplay option to view both a 
Placed and a Surface located synthetic. 

The synthetic Placement option will not move a synthetic across a line change
in a composite path.

During placment, the MB3 pop-up menu will have 4 options:

Undo: Places the synthetic at its last placement.

Reset: Placed the synthetic at is last placed location before the placement
       began.

Delete: Deletes the selected synthetic (in the box) from display. A confirmation
        box is displayed to verify deletion. This option also removes the Placed
        location of the synthetic on a trace and not the actual well location or
        synthetic.

Copy: Creates a copy of the selected synthetic at the current cursor location.
      It is attaced to the cursor and can be placed at a new location.

Time Shift Readout
During a synthetic placement this text field will show the time shift between
the synthetic and the underlying seismic traces. The time shift is referenced 
to the  original synthetic location, as opposed to a moved or placed synthetic
location.

NOTE: If the currently displayed seismic and a synthetic overlaying it have
different sample rates, the synthetic layer will move in time when you zoom.



Last Modified on: 11-AUG-98