makeCorkScrew()

fl::vector< vec3f > makeCorkScrew

(

corkscrew_args

args = corkscrew_args()

)

Definition at line 50 of file FestivalStick.ino.

                                                                      {
    // int num_leds, float leds_per_turn, float width_cm
    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 * PI);      // radius in mm
    const float angle_per_led = 2.0 * PI / leds_per_turn; // degrees per LED
    const float total_angle_radians = angle_per_led * num_leds;
    const float total_turns = total_angle_radians / (2.0 * PI); // total turns
    const float height_per_turn_cm = width_cm; // 10cm height per turn
    const float height_per_led =
        height_per_turn_cm /
        leds_per_turn; // this is the changing height per led.
    const float total_height =
        height_per_turn_cm * total_turns; // total height of the corkscrew
    fl::vector<vec3f> out;
    for (int i = 0; i < num_leds; i++) {
        float angle = i * angle_per_led; // angle in radians
        float height = (i / leds_per_turn) * height_per_turn_cm; // height in cm
 
        // Calculate the x, y, z coordinates for the corkscrew
        float x = radius * cos(angle); // x coordinate
        float z = radius * sin(angle); // y coordinate
        float y = height;              // z coordinate
 
        // Store the 3D coordinates in the vector
        vec3f led_position(x, y, z);
        // screenMap.set(i, led_position);
        out.push_back(led_position);
    }
    return out;
}

References args, PI, fl::HeapVector< T >::push_back(), x, y, and z.

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