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