deltoid.md

Tear Curve

Code:

deltoid() {
    let a = 1;
    for (let theta = 0; theta < TWO_PI; theta += 0.05) {
      let x = this.r * (4 * a * pow(cos(theta / 2), 2) * cos(theta) - a);
      let y = this.r * (4 * a * pow(sin(theta / 2), 2) * sin(theta));
      this.points.push(createVector(x, y));
    }
}

Source

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