Trace Manager

The Trace Manager lets you add new traces, view and change trace properties and remove traces from the display.

To show this dialog select Trace Manager under the File menu.

Files: Lists the trace files that are currently open. Select a trace file from the list to see details about the individual traces in the File Details section of the dialog box.
Add New: Click this to open another trace file and add it to the list of Files. The Open Trace dialog box will be displayed.
Unload: Click this to close the selected trace file and unload all the traces that it contains.
Start: Shows the start depth (shallowest) for the selected trace file, in metres.
Stop: Shows the stop depth (deepest) for the selected trace file, in metres.
Increments: Shows the distance between each reading for the selected trace file, in metres.
Traces: Shows the traces that are in the currently selected trace file. Select a trace from the list to view and edit its properties in the Trace details section of the dialog box.
Field: Set the trace field use to display the trace.
Colour: Use the drop down to select the colour used to draw the trace. You can select the No line value to make the trace line invisible.
Filter distance: Specify a parameter to use for the filtering algorithm for this trace. A larger number results in a smoother line. The filter distance is only relevant when the Filter Traces setting is on. Filtering uses a moving average algorithm - this parameter is the number of trace readings included in the window used to calculate the average for a point, with the averaging window being centred on the point. Enter a value of zero to disable filtering for this trace, even when the Filter Traces setting is on.
Shift: Specify a vertical offset to be applied when drawing this trace, in metres. This offset is added to the depth - so a positive number shifts the trace down the hole and a negative number moves the trace up the hole. Enter zero to return the trace to its original position.
Actual Range / Suggested Range: Select the Using checkbox in either section to set the horizontal display range for the selected trace to either the minimum and maximum values of the trace data, or the minimum and maximum values as specified by the user in the Min and Max fields. The Min value corresponds to the left hand side of the trace field, the Max value to the right, if you want to draw the trace "backwards" then specify a Min value that is greater than the Max value. If the values are equal then the trace is not drawn.

Defaults for many of these settings can be set for each trace (based on the name of the trace) in the MEGS_Log config file.