Function makeScreenMap

examples/FestivalStick/old.h:102–138

fl::ScreenMap makeScreenMap(corkscrew_args args = corkscrew_args()) {
    // Create a fl::ScreenMap for the corkscrew
    fl::vector<vec2f> points(args.num_leds);

    int num_leds = args.num_leds;
    float leds_per_turn = args.leds_per_turn;
    float width_cm = args.width_cm;


    const float circumference = leds_per_turn;
    const float radius = circumference / (2.0 * FL_PI);      // radius in mm
    const float angle_per_led = 2.0 * FL_PI / leds_per_turn; // degrees per LED
    const float height_per_turn_cm = width_cm; // 10cm height per turn
    const float height_per_led =
        height_per_turn_cm /
        leds_per_turn * 1.3; // this is the changing height per led.



    for (int i = 0; i < num_leds; i++) {
        float angle = i * angle_per_led; // angle in radians
        float r = radius + 10 + i * height_per_led; // height in cm

        // Calculate the x, y coordinates for the corkscrew
        float x = r * fl::cos(angle); // x coordinate
        float y = r * fl::sin(angle); // y coordinate

        // Store the 2D coordinates in the fl::vector
        points[i] = vec2f(x, y);
    }

    FL_WARN("Creating fl::ScreenMap with:\n" << points);

    // Create a fl::ScreenMap from the points
    fl::ScreenMap screenMap(points.data(), num_leds, .5);
    return screenMap;
}


// Create a corkscrew with: