VTK  9.1.0
vtkSphere.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkSphere.h
5
6 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7 All rights reserved.
8 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9
10 This software is distributed WITHOUT ANY WARRANTY; without even
11 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12 PURPOSE. See the above copyright notice for more information.
13
14=========================================================================*/
134#ifndef vtkSphere_h
135#define vtkSphere_h
136
137#include "vtkCommonDataModelModule.h" // For export macro
138#include "vtkImplicitFunction.h"
139
140class VTKCOMMONDATAMODEL_EXPORT vtkSphere : public vtkImplicitFunction
141{
142public:
144 void PrintSelf(ostream& os, vtkIndent indent) override;
145
149 static vtkSphere* New();
150
152
156 double EvaluateFunction(double x[3]) override;
158
162 void EvaluateGradient(double x[3], double n[3]) override;
163
165
168 vtkSetMacro(Radius, double);
169 vtkGetMacro(Radius, double);
171
173
176 vtkSetVector3Macro(Center, double);
177 vtkGetVectorMacro(Center, double, 3);
179
183 static double Evaluate(double center[3], double R, double x[3])
184 {
185 return (x[0] - center[0]) * (x[0] - center[0]) + (x[1] - center[1]) * (x[1] - center[1]) +
186 (x[2] - center[2]) * (x[2] - center[2]) - R * R;
187 }
188
190
199 float* pts, vtkIdType numPts, float sphere[4], vtkIdType hints[2]);
201 double* pts, vtkIdType numPts, double sphere[4], vtkIdType hints[2]);
203
205
214 float** spheres, vtkIdType numSpheres, float sphere[4], vtkIdType hints[2]);
216 double** spheres, vtkIdType numSpheres, double sphere[4], vtkIdType hints[2]);
218
219protected:
221 ~vtkSphere() override = default;
222
223 double Radius;
224 double Center[3];
225
226private:
227 vtkSphere(const vtkSphere&) = delete;
228 void operator=(const vtkSphere&) = delete;
229};
230
231#endif
abstract interface for implicit functions
virtual double EvaluateFunction(double x[3])=0
Evaluate function at position x-y-z and return value.
a simple class to control print indentation
Definition: vtkIndent.h:113
implicit function for a sphere
Definition: vtkSphere.h:141
void EvaluateGradient(double x[3], double n[3]) override
Evaluate sphere gradient.
static double Evaluate(double center[3], double R, double x[3])
Quick evaluation of the sphere equation ((x-x0)^2 + (y-y0)^2 + (z-z0)^2) - R^2.
Definition: vtkSphere.h:183
double Radius
Definition: vtkSphere.h:223
~vtkSphere() override=default
static void ComputeBoundingSphere(double **spheres, vtkIdType numSpheres, double sphere[4], vtkIdType hints[2])
Create a bounding sphere from a set of spheres.
static void ComputeBoundingSphere(double *pts, vtkIdType numPts, double sphere[4], vtkIdType hints[2])
Create a bounding sphere from a set of points.
double EvaluateFunction(double x[3]) override
Evaluate sphere equation ((x-x0)^2 + (y-y0)^2 + (z-z0)^2) - R^2.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
static vtkSphere * New()
Construct sphere with center at (0,0,0) and radius=0.5.
static void ComputeBoundingSphere(float *pts, vtkIdType numPts, float sphere[4], vtkIdType hints[2])
Create a bounding sphere from a set of points.
static void ComputeBoundingSphere(float **spheres, vtkIdType numSpheres, float sphere[4], vtkIdType hints[2])
Create a bounding sphere from a set of spheres.
int vtkIdType
Definition: vtkType.h:332