tempusSystem Class TimeHistoryF
TimeHistoryF is part of the WaveTrain system class library

TimeHistoryF outputs a time-dependent float value given an input signal vector sv having dimension (nt) and corresponding time vector tv with dimension (nt). The output value is chosen based on the current time; if the current time falls between two times in the time vector, the output value is chosen by interpolating the input signal vector (if sampleFlag = 0), or by sample-and-hold (if sampleFlag != 0). The parameter t0 defines the start time in the time vector, so that at simulation time t = 0.0 s, the output grid will be that for tv = t0. Also, the input time vector may be defined such that the time history does not begin until t > 0.0 s, and in prior times the initial value s0 is used. If the time vector ends before the end of the simulation, the last value is held throughout the remainder of the simulation.

Tempus Block Diagram Editor Snapshot
tv  Vector<double>   Time vector, length nt (s)   Vector()
sv  Vector<float>   Signal vector, length (nt)   Vector()
t0  double   The time within the tv vector that is to correspond to simulation time t=0.0 (s)   0.0
s0  float   Default signal value before initial time   0.0
sampleFlag  int   Sample flag (0 = interpolate; 1 = sample and hold)   0
s  float   Signal value 0.0  

Last Saved: Wed Feb 13 12:04:45 MST 2008 by TVE version 2007B