.ThermoSysPro.Properties.WaterSteam.IF97_packages.IF97_wAJ.Spline_Utilities.Modelica_Interpolation.Bspline1D.initDer

Information

Initialize Bspline which interpolates the points and first derivatives

Interface

function initDer
  extends Modelica.Icons.Function;
  input Real points[:, :] "[i,:] is point i on the curve to be interpolated";
  input Real derivs[size(points, 1), size(points, 2)] "derivs[i,:] is the derivative at points[i,:]";
  input Real param[size(points, 1)] "parameterization of the data points (not necessarily in the range 0..1)";
  input Integer degree(min = 2) = 3 "Polynomial degree of interpolation (max: number of points -1)
      at the moment degree=3 is supported";
  output Data spline(ndim = size(points, 2), ncontrol = 2*size(points, 1), degree = degree) "Bspline in a form which can be quickly interpolated";
end initDer;