spline.py 文件源码

def from_tck(self, tck, points = None):
    """Set spline parameter and knot structure using a tck object returned by splrep

    Arguments:
        tck (tuple): t,c,k tuple as returned by splrep
        points (int, array or None): optional sample points pecification
    """
    t,c,k = tck;
    self.degree = k;

    # set knots
    self._knots = t[k+1:-k-1];  
    self._knots_all = t;
    self._nparameter = self._knots.shape[0] + k + 1;

    # set parameter
    self._parameter = c[:self._nparameter];

    #set points
    if points is not None:
      self.set_points(points);

    # values and projection matrix will need to be updated after change of the knots
    self._values = None;
    self._projection = None;
    self._projection_inverse = None;  


  ############################################################################
  ### Spline getter