1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*=========================================================================
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.
=========================================================================*/
// .NAME vtkQuadric - evaluate implicit quadric function
// .SECTION Description
// 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);
// Description
// Construct quadric with all coefficients = 1.
static vtkQuadric *New();
// Description
// Evaluate quadric equation.
double EvaluateFunction(double x[3]);
double EvaluateFunction(double x, double y, double z)
{return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ;
// Description
// Evaluate the gradient to the quadric equation.
void EvaluateGradient(double x[3], double g[3]);
// Description
// 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() {}
double Coefficients[10];
private:
vtkQuadric(const vtkQuadric&); // Not implemented.
void operator=(const vtkQuadric&); // Not implemented.
};
#endif
|
