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.PLOT Statement

The .PLOT statement specifies signals to capture as XY plot data during simulation. Results are stored in the XyPlots collection of the SpiceSharpModel.

Syntax

.PLOT [<type>] <expr1> [<expr2> ...] [merge]
Parameter Description
type Optional analysis filter: DC, AC, TRAN, NOISE
expr Signal expressions to plot
merge Optional keyword — combine all simulations into one plot

Examples

* Plot output voltage during transient
.PLOT TRAN V(OUT)

* Plot multiple signals during AC
.PLOT AC V(OUT) V(IN)

* Merge all sweep iterations into one plot
.PLOT TRAN V(OUT) merge

Merge Behavior

  • Without merge: A separate XyPlot is created for each simulation run (except OP).
  • With merge: All simulation runs are combined into a single XyPlot with series labeled by simulation.

Typical Usage

RC Step Response
V1 IN 0 PULSE(0 5 0 1n 1n 5m 10m)
R1 IN OUT 1k
C1 OUT 0 100n
.TRAN 1e-6 20e-3
.PLOT TRAN V(OUT) V(IN)
.END

C# API

var model = reader.Read(parseResult.FinalModel);

foreach (var plot in model.XyPlots)
{
    Console.WriteLine(plot.Name);
    foreach (var series in plot.Series)
    {
        Console.WriteLine($"  Series: {series.Name}, Points: {series.Points.Count}");
    }
}