Axes tick Labels
Just as we changed the tick values in the above example, we can change the labels given to those ticks as well using the following functions.
Syntax:
rticklabels(<labels>)
thetaticklabels(<labels>)
We will now plot the trigonometric identity sin2(r) + cos2(r) = 1, in polar frames with only the 4 directions on the theta axis.
Example 3:
Matlab
% MATLAB code for Axes tick Labelsax=polaraxes;r=linspace(-pi,pi);% Plotting the identityplot(ax,r,sin(r).^2+cos(r).^2)rticks([0 .23 .5 1 ])% Setting r tick labelsrticklabels(["a=0","b=.23","c=.5","d=1"])thetaticks([0 90 180 270])% Setting theta tick labelsthetaticklabels(["East","North","West","South"]) |
Output:
Polar Axes Appearance and Behavior in MATLAB
Polar axes are coordinate axes where the two coordinate axes are r-axis for magnitude and theta-axis for angles. MATLAB has many functions to change the properties of these polar axes which we shall see throughout this article. In this article we shall see how to modify following properties of polar axes in MATLAB:
- Axes limits
- Axes ticks
- Axes tick labels
- R-axis tick angle
Let us see each of these with an example each.