Plot root locus and return plot handle
h = rlocusplot(sys)
rlocusplot(sys,k)
rlocusplot(sys1,sys2,...)
rlocusplot(AX,...)
rlocusplot(..., plotoptions)
h = rlocusplot(sys) computes and plots
the root locus of the single-input, single-output LTI model sys.
It also returns the plot handle h. You can use
this handle to customize the plot with the getoptions and setoptions commands.
Type
help pzoptions
for a list of available plot options.
See rlocus for a discussion
of the feedback structure and algorithms used to calculate the root
locus.
rlocusplot(sys,k) uses a user-specified
vector k of gain values.
rlocusplot(sys1,sys2,...) draws the root
loci of multiple LTI models sys1, sys2,...
on a single plot. You can specify a color, line style, and marker
for each model, as in
rlocusplot(sys1,'r',sys2,'y:',sys3,'gx')
rlocusplot(AX,...) plots into the axes
with handle AX.
rlocusplot(..., plotoptions) plots the
root locus with the options specified in plotoptions.
Type
help pzoptions
for more details.
Use the plot handle to change the title of the plot.
sys = rss(3); h = rlocusplot(sys); p = getoptions(h); % Get options for plot. p.Title.String = 'My Title'; % Change title in options. setoptions(h,p); % Apply options to plot.
You can change the properties of your plot, for example the units. For information on the ways to change properties of your plots, see Ways to Customize Plots.
getoptions | pzoptions | rlocus | setoptions