Signal Slicing

The signal slicing function takes a projection of a 3D signal. This profile can be at a specified t- or x-index, and the created signal is a 2D signal. To slice a signal, select the signal within the main window, and then use the menu option 'Signal Processing->Slice Signal'. This brings up the window shown below.

The signal to be sliced is shown in the droplist at the top of this window. Another signal can be sliced by selecting it using the droplist. The default name for the new signal is given below this and this can also be changed.

The slicing can either be done by value or by index, this is determined by the buttons at the bottom of the right hand side.

The slice to be taken is determined by the input into the middle set of boxes. A single index/value or a range can be chosen by typing into the box. The range of allowed indices/values is shown to the right of the box.

By default the slice will be created in the next available plot. It is possible to select a plot for the slice by selecting the 'Plot in plot no.' option at the bottom and entering the required plot number.

It is possible to slice a signal at all indices in a certain direction. This is done by selecting the appropriate check box. The name for the first slice is taken from this window, and the names for the subsequent slices automatically created. By default the new signals are each placed in separate new plots, and this can be changed using the options at the bottom of the screen. All the slices can be placed in one plot, or alternatively each slice can be placed in a different plot starting at a given number. This last option is useful when comparing slices of two signals. If a large number of new signals will be created by the operation a warning box will be displayed.

A 3D signal can also be sliced to give a SV point by specifing both the t- and x-indices. Similarly a 2D signal can be sliced, which always gives a SV point.

Multigraph signals of all types can be split into their individual signals via the signal slicer, and this can be mixed with the other slicing options.

Note that for TRANSP signals this slicing takes into account the stored signs of the signals. This means the sliced signals are identical to the original signals used to create the multigraph.