Arc/point collision

arcPointCollision.pde

class Arc {
  boolean collidesWith(PolarCoord point) {
    return !( sin(startAngle) > sin(point.t) ||
              sin(stopAngle) < sin(point.t) ||
              cos(startAngle) > cos(point.t) ||
              cos(stopAngle) < cos(point.t) ||
              minRadius > point.r ||
              maxRadius < point.r );
  }
}