Topic:
Synthetics may be shifted in time when overlaid on zoomed seismic lines

Description:
SYMPTOM:    In IESX 10.0, synthetics computed at a sample interval different 
            from that of seismic data may be shifted in time
            when they are overlaid (as straight traces) on seismic lines and if
            the display is zoomed. 

Solution:
WORKAROUND: This problem occurs when the scale selected for seismic display,
            created while zooming, is not an exact scale for the synthetics.
            Following are some recommended workarounds:
 
                1) Display the synthetic traces along the borehole.
                2) Generate synthetics at the same sample rate as that of 
                   seismic lines.
                3) Use a vertical (time) scale that is compatible (supported)
                   for both seismic and synthetics. A scale (inches/sec.) X 100
                   must be evenly divisible by the number of samples/sec. for
                   both synthetics and seismic data.
                     
RESOLUTION: Corrected in 10.1, released in December, 1996.  



Last Modified on: 07-AUG-98