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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSphericalTransform.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 vtkSphericalTransform
* @brief spherical to rectangular coords and back
*
* vtkSphericalTransform will convert (r,phi,theta) coordinates to
* (x,y,z) coordinates and back again. The angles are given in radians.
* By default, it converts spherical coordinates to rectangular, but
* GetInverse() returns a transform that will do the opposite. The equation
* that is used is x = r*sin(phi)*cos(theta), y = r*sin(phi)*sin(theta),
* z = r*cos(phi).
* @warning
* This transform is not well behaved along the line x=y=0 (i.e. along
* the z-axis)
* @sa
* vtkCylindricalTransform vtkGeneralTransform
*/
#ifndef vtkSphericalTransform_h
#define vtkSphericalTransform_h
#include "vtkCommonTransformsModule.h" // For export macro
#include "vtkWarpTransform.h"
VTK_ABI_NAMESPACE_BEGIN
class VTKCOMMONTRANSFORMS_EXPORT vtkSphericalTransform : public vtkWarpTransform
{
public:
static vtkSphericalTransform* New();
vtkTypeMacro(vtkSphericalTransform, vtkWarpTransform);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Make another transform of the same type.
*/
vtkAbstractTransform* MakeTransform() override;
protected:
vtkSphericalTransform();
~vtkSphericalTransform() override;
/**
* Copy this transform from another of the same type.
*/
void InternalDeepCopy(vtkAbstractTransform* transform) override;
///@{
/**
* Internal functions for calculating the transformation.
*/
void ForwardTransformPoint(const float in[3], float out[3]) override;
void ForwardTransformPoint(const double in[3], double out[3]) override;
///@}
void ForwardTransformDerivative(const float in[3], float out[3], float derivative[3][3]) override;
void ForwardTransformDerivative(
const double in[3], double out[3], double derivative[3][3]) override;
void InverseTransformPoint(const float in[3], float out[3]) override;
void InverseTransformPoint(const double in[3], double out[3]) override;
void InverseTransformDerivative(const float in[3], float out[3], float derivative[3][3]) override;
void InverseTransformDerivative(
const double in[3], double out[3], double derivative[3][3]) override;
private:
vtkSphericalTransform(const vtkSphericalTransform&) = delete;
void operator=(const vtkSphericalTransform&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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