functionpolesAndZeros_Old

Information

Syntax

StateSpace.Plot.polesAndZeros(ss);
   or
StateSpace.Plot.polesAndZeros(
  ss,
  poles=true,
  zeros=true,
  plot=true,
  defaultDiagram=Modelica_LinearSystems2.Internal.DefaultDiagramPolesAndZeros(),
  device=Modelica_LinearSystems2.Utilities.Plot.Records.Device());

Description

This function plots a pole-zero-map of the poles and transmission zeros of a state space system. The poles are the eigenvalues of the system matrix (eigenvalues(ss.A)). The Boolean inputs "poles" and "zeros" define what to plot. If Boolean input "plot = true", the pole-zero-map is plotted. If false, only the diagram is generated and returned as output argument. The records "defaultDiagram" and "device" allow to set various layout options and the size and location of the diagram on the screen.

Example

The example Modelica_LinearSystems2.Examples.StateSpace.plotPolesAndZeros is defined as

  Plot.polesAndZeros(ss = Modelica_LinearSystems2.StateSpace(
    A=[-3, 2,-3,  4, 5,6;
        0, 6, 7,  8, 9,4;
        0, 2, 3,  0,78,6;
        0, 1, 2,  2, 3,3;
        0,13,34,  0, 0,1;
        0, 0, 0,-17, 0,0],
    B=[1,0;
       0,1;
       1,0;
       0,1;
       1,0;
       0,1],
    C=[0,0,1,0,1,0;
       0,1,0,0,1,1],
    D=[0,0;
       0,0]));

and results in

Inputs