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/*=========================================================================
Program: Visualization Toolkit
Module: vtkQuadric.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkQuadric
* @brief evaluate implicit quadric function
*
* vtkQuadric evaluates the quadric function F(x,y,z) = a0*x^2 + a1*y^2 +
* a2*z^2 + a3*x*y + a4*y*z + a5*x*z + a6*x + a7*y + a8*z + a9. vtkQuadric is
* a concrete implementation of vtkImplicitFunction.
*/
#ifndef vtkQuadric_h
#define vtkQuadric_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkImplicitFunction.h"
class VTKCOMMONDATAMODEL_EXPORT vtkQuadric : public vtkImplicitFunction
{
public:
vtkTypeMacro(vtkQuadric, vtkImplicitFunction);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Construct quadric with all coefficients = 1.
*/
static vtkQuadric* New();
//@{
/**
* Evaluate quadric equation.
*/
using vtkImplicitFunction::EvaluateFunction;
double EvaluateFunction(double x[3]) override;
//@}
/**
* Evaluate the gradient to the quadric equation.
*/
void EvaluateGradient(double x[3], double g[3]) override;
//@{
/**
* Set / get the 10 coefficients of the quadric equation.
*/
void SetCoefficients(double a[10]);
void SetCoefficients(double a0, double a1, double a2, double a3, double a4, double a5, double a6,
double a7, double a8, double a9);
vtkGetVectorMacro(Coefficients, double, 10);
//@}
protected:
vtkQuadric();
~vtkQuadric() override {}
double Coefficients[10];
private:
vtkQuadric(const vtkQuadric&) = delete;
void operator=(const vtkQuadric&) = delete;
};
#endif
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