pcl: bivariate_polynomial.h Source File

00001 #ifndef BIVARIATE_POLYNOMIAL_H
00002 #define BIVARIATE_POLYNOMIAL_H
00003 
00004 #include <fstream>
00005 #include <iostream>
00006 
00007 namespace pcl {
00008 
00011 template<typename real>
00012 class BivariatePolynomialT {
00013 
00014   public:
00015     //-----CONSTRUCTOR&DESTRUCTOR-----
00017     BivariatePolynomialT (int new_degree=0);
00019     BivariatePolynomialT (const BivariatePolynomialT& other);
00021     ~BivariatePolynomialT ();
00022 
00023     //-----OPERATORS-----
00025     BivariatePolynomialT&
00026       operator= (const BivariatePolynomialT& other) { deepCopy (other); return *this;}
00027 
00028     //-----METHODS-----
00030     void
00031       setDegree (int new_degree);
00033     unsigned int
00034       getNoOfParameters () const { return getNoOfParametersFromDegree (degree);}
00036     real
00037       getValue (real x, real y) const;  
00040     void
00041       calculateGradient (bool forceRecalc=false);
00043     void
00044       getValueOfGradient (real x, real y, real& gradX, real& gradY);
00045     
00048     void
00049       findCriticalPoints (std::vector<real>& x_values, std::vector<real>& y_values, std::vector<int>& types) const;
00050     
00052     void
00053       writeBinary (std::ostream& os) const;
00055     void
00056       writeBinary (const char* filename) const;
00058     void
00059       readBinary (std::istream& os);
00061     void
00062       readBinary (const char* filename);
00063     
00065     static unsigned int
00066       getNoOfParametersFromDegree (int n) { return ((n+2)* (n+1))/2;}
00067     //-----VARIABLES-----
00068     int degree;
00069     real* parameters;
00070     BivariatePolynomialT<real>* gradient_x, * gradient_y;
00071     
00072   protected:
00073     //-----METHODS-----
00075     void
00076       memoryCleanUp ();
00078     void
00079       deepCopy (const BivariatePolynomialT<real>& other);
00080   //-----VARIABLES-----
00081 };
00082 
00083 template<typename real>
00084 std::ostream&
00085   operator<< (std::ostream& os, const BivariatePolynomialT<real>& p);
00086 
00087 typedef BivariatePolynomialT<double> BivariatePolynomiald;
00088 typedef BivariatePolynomialT<float>  BivariatePolynomial;
00089 
00090 }  // end namespace
00091 
00092 #include "pcl/common/bivariate_polynomial.hpp"
00093 
00094 #endif