The iplot command, available in electrical mode, is useful only if the WRspice program is available. Operation is similar to the plot button, whereby a command string is generated through selection of nodes and branches with the pointer. The command line can be edited in the usual way to generate, for example, functions of the plot variables. Pressing the Enter key saves the command. When the iplot button is active and a command has been saved, the plot is generated dynamically while a simulation, initiated with the run command, is in progress.
The S and R buttons, to the left of the prompt area, can be used to save and restore prompt line text in a set of internal registers.
Pressing the iplot button a second time will turn off the interactive plotting. Pressing iplot and then Enter will turn the interactive plotting back on. Of course, the trace points and plotting command can be modified before pressing Enter. In particular, if all prompt line text is deleted, pressing Enter will delete the internally saved command string, and turn interactive plotting off. Pressing the iplot button again will take as default text the string from the plot command, if any.
The command text and mark locations are saved with the cell data when written to disk, thus the iplot command is persistent.