change polar plot max radius

sphear_cardioid_plot_all.m

@@ -69,7 +69,7 @@ function [B] = sphear_cardioid_plot_all(freqs, fmin, fmax, Noct, Nfft, Fs, plot_
 	printf("f = %d, fc = %d\n", freqs(idx), fc(i));
 	B(:,:,i) = sphear_bf_power(fe(i), fe(i + 1), Nfft, Fs, plotz) / norm;
 	if (plot_on != 0)
-	  sphear_cardioid_plot(idx, B(:,:,i), fe(i), fe(i + 1), 1.5);
+	  sphear_cardioid_plot(idx, B(:,:,i), fe(i), fe(i + 1), 1.2);
 	end
 	idx = idx + 1;
       end