Cubic constructor

Cubic(double x1, double y1, double x2, double y2,)

Implementation

Cubic(this.x1, this.y1, this.x2, this.y2) {
  // Precompute values table
  for (int i = 0; i < splineTableSize; ++i) {
    _values[i] = calcBezier(i * sampleStepSize, x1, x2);
  }
}