Axis Modification (4 different type axis)

2011 6 24
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I'm looking to create a plot that show four different scales:
  • +y axis would be frequency (HZ)
  • +x axis would be phase delay (deg)
  • -y axis would be damping ratio (unitless)
  • -x would be yaw velocity gain (deg/s/deg or 1/s)
I can scale the plot no problem, but the tricky part of what I'm asking is that the phase delay axis needs to from -90 to 0. The -90 would be the origin and it would increase to 0 on the +x axis.
I could just flip the phase lag axis with the yaw velocity gain to where it becomes a matter of just scaling everything properly. That will be my back-up plan if what I'm asking can't be done in Matlab.
Here's my code (you'll notice why scaling is important):
a1=0.2 %Heading Easiness (1/s)
fn=0.6 %Heading Responsiveness (Hz)
chi=0.7 %Directional Dampening (No Units)
phi=80 %Following Controllability (deg)
%%Rhombus Skeleton
%Car 1
x1=[-a1 0 phi 0 -a1];
y1=[0 fn 0 -chi 0];
%Plot
plot(x1,y1)
grid
Thanks!

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Jan
Jan 2011-6-24

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Does a reversed X-axis solve your problem?
plot(1:10);
set(gca, 'XDir', 'reverse')

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Brent
Brent 2011-6-24
It's a start...The +x axis now has negitive values and the -x axis now has postive values (so far so good!). But now I need the +x axis to start at -90 and increase to 0 rather than starting at zero and decreasing to -90. Is that even possible?

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