How to add a secondary axis to a polarplot on matlab?

3 ビュー (過去 30 日間)
Abraham Hartley 2019 年 10 月 26 日
コメント済み: Star Strider 2019 年 10 月 26 日
I would like to add a secondary radial axis to a polar graph in order to show the variation of two parameters as theta changes from 0 to 360 degrees. Any help would be much appreciated.

サインインしてコメントする。

回答 (1 件)

Star Strider 2019 年 10 月 26 日
See if this does something similar to what you want:
t = 0 : 2*pi/177 : 2*pi;
a=linspace(0.3,0.5,178);
m=linspace(0.4,0.6,178);
figure(3)
ax = polaraxes;
hold on
polarplot(ax,t,a,'-b')
polarplot(ax,t,m,'-r')
ax.RColor ='blue';
ax.ThetaZeroLocation = 'bottom';
thetaticks([0:30:360])
thetaticklabels({'180','150','120','90','60','30','0','330','300','270','240','210'})
rlbl = sprintfc('%.0f',(0:2:6)); % Radius Labels
text(ones(1,4)*1.8*pi, (0:2:6)*0.1, rlbl, 'Color','r') % Label Radii
It does not plot separate radial grids (although that is not difficult to do). It is designed to produce something similar to yyaxis for a polarplot, here one curve and axis in blue and another curve and asxis in red
2 件のコメント表示非表示 1 件の古いコメント
Star Strider 2019 年 10 月 26 日
My pleasure.
Here are grid lines that are not part of the original grid:
addgrid = [0.1; 0.3; 0.5]*ones(size(t)); % Calculate Grid Lines At [0.1 0.3 0.5]
polarplot(ax, t, addgrid, '--k') % Plot Them
Experiment with the line style and radii to get the result you want.

サインインしてコメントする。

カテゴリ

Find more on Polar Plots in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by