compass plot

i would like to know how to rotate the compass so that 0 value is on the top (y-axis).when im plotting compass 0 value is on the right(x-axis).i want to make 0 value on y-axis.

Answer 1

[Abby Skofield]

Starting in R2024b, the compassplot function can be used in place of compass to create arrows eminating from the origin of a polar axes. The PolarAxes class (introduced in R2016a) has many properties and several functions you can use to customize its appearance. Note that compassplot can be combined in a PolarAxes with other plots like polarhistogram, polarplot, polarscatter, etc.

t = linspace(pi/3,2*pi,10);
cp = compassplot(t,sin(t)); % new in R2024b
pax = gca % get a handle to the PolarAxes

pax = 
  PolarAxes with properties:

             ThetaLim: [0 360]
                 RLim: [0 1]
       ThetaAxisUnits: 'degrees'
             ThetaDir: 'counterclockwise'
    ThetaZeroLocation: 'right'

  Use GET to show all properties

pax.ThetaZeroLocation = "top";

Answer 2

[Grzegorz Knor]

view(-90,90)

[Miguel Gil Mast]

Adding to Grzegorz Knor's comment, I used the following to rotate my compass (see attached pictures)

view([+90 -90]);

This is what Bruce Raine's script does also only that he saves the inputs as az and el first

Answer 3

[Bruce Raine]

Try this code, the above code has the signs around the wrong way.

az = 90; % azimuth i.e. rotate around z-axis horizontally by 90 degrees

el = -90; % elevation negative, effectively looking beneath plot

view(az, el);