drawRadialSpectrum()

void drawRadialSpectrum	(	FFTBins *	fft,
		float	)

Definition at line 222 of file advanced.h.

                                               {
    clearDisplay();
    CRGBPalette16 palette = getCurrentPalette();
    
    int centerX = WIDTH / 2;
    int centerY = HEIGHT / 2;
    
    for (size_t angle = 0; angle < 360; angle += 6) {  // Reduced resolution
        size_t band = (angle / 6) % NUM_BANDS;
        if (band >= fft->bins_db.size()) continue;
        
        float magnitude = fft->bins_db[band] / 100.0f;
        magnitude = MAX(0.0f, magnitude - noiseFloor.value());
        magnitude *= audioGain.value() * autoGainValue;
        magnitude = fl::clamp(magnitude, 0.0f, 1.0f);
        
        int radius = magnitude * (MIN(WIDTH, HEIGHT) / 2);
        
        for (int r = 0; r < radius; r++) {
            int x = centerX + (r * cosf(angle * PI / 180.0f));
            int y = centerY + (r * sinf(angle * PI / 180.0f));
            
            if (x >= 0 && x < WIDTH && y >= 0 && y < HEIGHT) {
                uint8_t colorIndex = fl::map_range<int, uint8_t>(r, 0, radius, 255, 0);
                int ledIndex = xyMap(x, y);
                if (ledIndex >= 0 && ledIndex < NUM_LEDS) {
                    leds[ledIndex] = ColorFromPalette(palette, colorIndex + hue);
                }
            }
        }
    }
}

References audioGain(), autoGainValue, fl::clamp(), clearDisplay(), ColorFromPalette(), fft, getCurrentPalette(), HEIGHT, hue, leds, MAX, MIN, noiseFloor(), NUM_BANDS, NUM_LEDS, palette(), PI, WIDTH, x, xyMap, and y.

Referenced by loop().

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