TracePrep Seismic Viewer

View processed seismic traces

Version: 1.2

Introduction

TPViewer is a seismic section viewer for displaying the immediate results of a processing sequence. Place the viewer anywhere in a processibg sequence to see "before and after" comparisons of the effect of a process or sequence of processes. You can set the viewer up so that it is "persistent", i.e. remains active after the processing sequence has finished, or "temporary", i.e. it only displays traces while processing is going on. You can also preset the horizontal and vertical scales, display type and amplitude and determine what kind of horizontal and vertical scales will be displayed.

Configuration

This version of TPView is supplied as part of the TracePrep TPBasic module.

To install the TPView module, run the TracePrep setup program. TPView comprises a dynamic link library TPView.DLL and a corresponding INI file TPView.INI. These two files are added to the Lynx system directory (LynxSys) at installation. The help file (this file) is added to the docs subdirectory of LynxSys. For TracePrep to recognise the new module, the installation adds an entry to the TracePrep.INI file [packages] section, e.g.

[packages]
TPView=vvvv

where vvvv is the version number of the TPView module, found in the [lynx] section of TPView.INI.

The [config] section in TPView.INI contains module constants which can be edited manually, or through the LEAConfig application

Running the Viewer

Place one or more VIEWER processes into the processing list and set up the VIEWER's parameter pages for the desired display.

Menus and Controls

The viewer toolbar contains standard buttons for Lynx's viewer component

Toolbar buttons are duplicated in the main menu

Parameters

VIEWER Seismic Section Viewer

Process ID - TracePrep standard process ID

Process title - A brief description of an instance of the process

Display style:

Horizontal scale 1:
(type single, limits 0.1 to 20.0)
Approximate horizontal scale based on nominal trace spacing

Vertical scale, cm/sec
(type single, limits 1000 to 200000)
Approximate vertical scale

Amplitude factor
(type single, limits 0.01 to 100.0)

Amplitude scale
(type option, Auto, Fixed, )

Peak amplitude
(type single, limits 0.001 to 1000000.0)

Trace Clip amplitude
(type long integer, limits 1 to 10)

Plot Direction
(type option, LtoR, RtoL)

Viewer Options

Overview at startup
(type option, Yes, No, )
Not implemented

Top scale 1 type
(type option, None, CDP, Distance, Shotpoint, Trace)
scale to appear across the top of the traces display

Top scale 2 type
(type option, None, CDP, Distance, Shotpoint, Trace)
second scale to appear across the top of the traces display

Left scale units
(type option, Msecs, secs, samples, )
Vertical scale on the left side of the trace display

Right scale units
(type option, Msecs, secs, samples, )
Vertical scale on the right side of the trace display

Sync Viewers
(type option, Yes, No, )
not implemented

Refresh traces
(type long integer, limits 2 to 32000)
The viewer will refresh, modulo this number of processed traces.- if you make this number too small, processing will be slowed down significantly

Track traces
(type option, Yes, No, )
If yes, the viewer will refresh with the most recent trace processed on the right hand edge of the screen. Otherwise, trace 1 will always appear at the left edge of the viewer display.

Destroy on end
(type option, Yes, No, )
Yes- The viewer and its associated temporary file will be destroyed when processing finishes
No- The viewer will be preserved when processing finishes. The temporary file will not be destroyed until the viewer form is closed. The temporary file is created in localpath\scratch (on most installations, C:\data\scratch)