www.gusucode.com > graphics 案例源码程序 matlab代码 > graphics/PolarAxesGridLinesAndLabelsExample.m
%% Polar Axes Grid Lines and Labels % This example shows how to plot a line in polar coordinates, label the % angles in radians, and modify the grid line locations. %% Create Polar Plot % Plot a line in polar coordinates. theta = linspace(0,4*pi); rho = 2*theta; polarplot(theta,rho); %% Theta-Axis Units % Use |gca| to access the polar axes and its properties. Label the angles % in radians instead of degrees by changing the units. pax = gca; pax.ThetaAxisUnits = 'radians'; %% Theta-Axis Grid Lines % Specify the theta values at which to display grid lines. Specify the % values in radians since the |ThetaAxisUnits| property is set to radians. pax.ThetaTick = 0:pi/4:2*pi; %% R-Axis Limits % Change the _r_-axis limits. pax.RLim = [-5 25]; %% R-Axis Grid Lines % Specify the radius values at which to display grid lines. pax.RTick = -5:10:25;