Polarplot, how to delete outmost circle (axis) and message

Hi,

I am trying to make a polarpattern of a phased array antenna, how can I get rid of the outmost circle in the plot, see the picture below. So I just want to see the circles at the magnitudes I set in the code (P.MagnitudeTick=[0.2 0.4 0.6 0.8 1]), the last circle should be the one with "1", no circle after that should be seen.

Also, is there a way to hide the message "Right click to interact with the plot", because it also appears in the svg-exports that I make, if I do not click it away beforehand (and I have hundrets of plots to make, it is very annoying to click all of them away).

Thank you very much!!

Answer 1

[Star Strider]

The extra circle outside the magnitude 1 circle is the result of specifying this:

P.MagnitudeLim=[0 1.05];

If you remove that (or comment it out as I did here, or set it equal to 1 rather than 1.05), the extra circle disappears.

Try this —

clear all
     %close all 
     clc
     
     
     %╭────────────────────────────╮
     
         steeringangle= 30   *-1; 
     
         firstplot=0;  
     
     %╰────────────────────────────╯
     
     
     if (firstplot)
     figure
     else
     hold on
     end

     
     
     % %%
     
     % Create a Uniform Linear Array Object
     Array = phased.ULA('NumElements',8,...
         'ArrayAxis','y');
     % The multiplication factor for lambda units to meter conversion
     Array.ElementSpacing = 0.4999*1;
     Array.Taper = ones(1,8).';
     
     % Create an short dipole antenna element
     Elem = phased.ShortDipoleAntennaElement;
     Elem.FrequencyRange = [0 300000000];
     Elem.AxisDirection = 'z';
     Array.Element = Elem;
     
     % Assign Frequencies and Propagation Speed
     Frequency = 300000000;
     PropagationSpeed = 300000000;
     
     % Assign Steering Angles
     SteeringAngles = [steeringangle;0];
     % Assign Phase shift quantization bits
     PhaseShiftBits = 0;
     
     
     
     % Calculate Steering Weights
     
     Freq3D = 300000000;
     % Find the weights
     w = zeros(getNumElements(Array), length(Frequency));
     SteerVector = phased.SteeringVector('SensorArray', Array,...
         'PropagationSpeed', PropagationSpeed, 'NumPhaseShifterBits', PhaseShiftBits(1));
     for idx = 1:length(Frequency)
         w(:, idx) = step(SteerVector, Frequency(idx), SteeringAngles(:, idx));
     end
     
     
     % %   ╭────────────────────────╮
     % %%  │    2D Polar Pattern    │
     % %   ╰────────────────────────╯
     
     
     
     
     format = 'polar';
     cutAngle = 0;
     plotType = 'Directivity';
     plotStyle = 'Overlay';
     
     p=1.03*pattern(Array, Frequency, -180:180, cutAngle, 'PropagationSpeed', PropagationSpeed,...
         'CoordinateSystem', format ,'weights', w, ...
         'Type', plotType, 'PlotStyle', plotStyle);
     p_mag=normalize(db2mag(p),"range");
     
     
     figure
     P = polarpattern(0:1:360,p_mag);
     
     
     P.LineWidth = 2;
     P.AngleResolution= 45;
     P.FontSizeMode= 'manual';
     P.FontSize= 18;
     P.FontName='Times';
     P.AngleLim= [0 360];
     
     P.AngleTickLabel = string(P.AngleTickLabel) + char(176) +' '; 
     
     P.MagnitudeFontSizeMultiplier=1;
     P.MagnitudeAxisAngle= 315;     
     P.MagnitudeTick=[0.2 0.4 0.6 0.8 1];
     % P.MagnitudeLim=[0 1.05];                                         % <— CHANGED
     
     %Hintergrund auf weiß
     P.GridBackgroundColor=[ 1 1 1];
     

print('Antenna','-dpng')

Warning: In a future release, UI components will not be included in the output. To include UI components, use the exportapp function.

imshow(imread('Antenna.png'))

.

[Dingodongo]

thank you very much I also found another solution that keeps "1" centered:

c=findall(gcf,'Tag','PolarGrid1');

delete(c(3));

range=712-181:712;

c(2).XData(range)=0;

c(2).YData(range)=0;

The message popup is not a problem if i keep the mouse away from the figure it does not appear, so I think this is solved

[Star Strider]

My pleasure!

The message only appears in the GUI. It does not appear in the actual plot, or the plot image.