Compass Plot OR Polar Plot for Wind Vane Visualization

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Luke Barker 2020-1-8

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https://ww2.mathworks.cn/matlabcentral/answers/499518-compass-plot-or-polar-plot-for-wind-vane-visualization

编辑： Luke Barker 2020-1-8

I am trying to create a visualization for a Wind Vane indicator. I found a polar plot plot example and on the polar plot example, axis properties were used to change the degrees around the circle to "N", "NW", etc...

I am using this code to make a Polar Plot indicate the direction the wind is out of:

% Convert to radians 
rad = windDir*pi/180; 
   
% Add 90 counter clockwise rotation to align the compass with true North 
rad = rad+pi; 
theta = rad;
rho = windSpeed;
Z = polarplot(theta,rho,'-');
Z.LineWidth = 12;
pax = gca;
angles = 0:45:360;
pax.ThetaTick = angles;
labels = {'E','NE','N','NW','W','SW','S','SE'};
pax.ThetaTickLabel = labels;
pax.Title.String = 'Wind Dir. Out Of...';
pax.Title.Color = 'red';

I like that the compass plot uses a long arrow and can show historical arrows. The compass plot could be used to indicate wind is blowing "toward" but when I try to use the same axis properties in the compass plot, matlab does not recognize the parameters. It only recognizes the axis parameters of a cartesian coord plot.

Thanks.