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00010 #ifndef QWT_SPLINE_H
00011 #define QWT_SPLINE_H
00012
00013 #include "qwt_global.h"
00014
00062 class QWT_EXPORT QwtSpline
00063 {
00064 public:
00065 QwtSpline();
00066 ~QwtSpline();
00067
00068 double value(double x) const;
00069 bool recalc(double *x, double *y, int n, bool periodic = false);
00070 void copyValues(bool tf = true);
00071
00072 private:
00073 bool buildPerSpline();
00074 bool buildNatSpline();
00075 int lookup(double x) const;
00076 void cleanup();
00077
00078 class PrivateData;
00079 PrivateData *d_data;
00080 };
00081
00082 #endif