How to make a video with array pattern function

I am trying to make a video on how the directivity of an antenna array as I steer the beam. I have so far the following code:

videoFile = VideoWriter('Directivity_Change in angle');
open(videoFile);

for aziang = -90:90
    steervec = phased.SteeringVector('SensorArray',URA);
    weights = steervec(fc,[aziang;0]);
    pattern(URA,fc,[-180:180],[-90:90],...
    'CoordinateSystem','polar',...
    'Type','directivity','PropagationSpeed',c,'Weights',weights)
    
    F = getframe(gcf);
    writeVideo(videoFile,weights)
    
end

I am ending up getting that no video frames were written to thie file. I am not sure how to do this so was wondering if I could get some help. Thanks in Advance!

Answer 1

[Image Analyst]

Do you see anything in the display?

Write out F, not weights.

writeVideo(videoFile, F)

See attached demo.

[Vishnu Peteti]

Thank you very much for the reply, it was in fact the 'F' - feel silly for asking here - thanks so much

[Image Analyst]

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