scale method
Scale the geometry data. This is typically done as a one time operation,
and not during a loop. Use scale for typical real-time
mesh scaling.
Implementation
BufferGeometry scale(double x, double y, double z) {
  // scale geometry
  _bufferGeometrym1.makeScale(x, y, z);
  applyMatrix4(_bufferGeometrym1);
  return this;
}