splineX = new mxSpline1D(t, x); splineY = new mxSpline1D(t, y);
splineX = new mxSpline1D(t, x); splineY = new mxSpline1D(t, y);
splineX = new mxSpline1D(t, x); splineY = new mxSpline1D(t, y);
splineX = new mxSpline1D(t, x); splineY = new mxSpline1D(t, y);