Seismic Plot Display Options for Seismic Display

Select a seismic display mode:

• Wiggle Trace – Only the wiggle traces are displayed.

• Wiggle Area - Wiggle traces are displayed with solid black/white area fill.
• Colored Area - Wiggle traces are displayed with variable area color fill.
• Colored Pixel - Variable area color fill with no wiggle traces.
• Overlayed Wiggle - Variable area color fill with wiggle traces overlaid.
• Overlayed Wiggle Area - Variable area color fill with wiggle area overlaid.

See examples of seismic display modes

Define your wiggle trace display:

• Excursion - Applies a scalar to the trace amplitude. A setting of ‘4’ displays the maximum amplitude of the entire dataset at an excursion of two traces on either side of zero amplitude. Increase the wiggle excursion to increase the trace amplitude, and vice versa.

• Clipping - Clips amplitudes higher than the number of traces specified by the wiggle clip. Clipped amplitudes appear ‘squared off’. A wiggle clip setting of ‘3’ clips amplitudes that fall beyond three traces in either direction. If your data appears clipped, increase the wiggle clip or decrease the wiggle excursion.
• Decimation - Controls how many traces to display in the seismic plot. A setting of ‘1’ displays every trace; ‘2’ displays every second trace.
• On your keyboard, press <Ctrl> + <B> to display the traces numbers along the bottom of your seismic plot.

Set the color palette for your seismic data:

• Color Set - Select the color set for the seismic plot. The default color set in Scaled Windows Plot is the color set from current data display. In Scaled Template Plot, the default is the color set saved to the template. The ‘From Window’ setting uses the color set from the active seismic window. Click <Edit> to choose a saved color set.
• Gain - Applies a scalar to your data range on the color palette so that colors will be focused on a smaller or larger data range than the default. If the data range on your color palette is –32 800 to +32 800, and you change the color gain from 1 to 2, then your new data range will be –16 400 to +16 400. All values greater than 16 400 will be displayed as 16 400.
• Bias - Shifts the color mapping about the zero point. This is useful for ‘one sided data’ that contains all positive or negative values. Zero is the default and means that colors are distributed about the zero data value. Apply a color bias between –0.5 and +0.5 to shift the data range so that colors are distributed about a value other than zero. For example, if you have a color range of –32 800 to 32 800 and enter a color bias of ‘-0.5’, the new color range will be 0 to 65 500. A setting of ‘0.5’ would shift the color range to –65 500 to 0.

Select a plot display scale:

• Horizontal - Enter a value in the in the Horizontal field and select traces/inch, traces/centimeter, or Map 1:n as the scale. Trace scales draw your seismic with a fixed distance between traces, while map scale is variable and presents a spatially accurate representation of the traces. For example, if you select Map 1:n and type 10000 in the Horizontal field, WinPICS will print the seismic at 1:10000 map scale.

• The map scale feature is useful for comparing two pieces of data shot differently.

• Vertical - Enter a vertical scale in inches/second or centimeters/second.

Select an interpolation option:

• Over-sample Data - Over-sample data interpolation applies a function to the wiggle traces to produce curved line traces instead of straight line segments connecting data samples.
• Interpolate Colored Pixels - Smoothes color representations, producing a less ‘blocky’ appearance on the plot.