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77 lines
2.9 KiB
77 lines
2.9 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkSphericalTransform.h,v $
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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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// .NAME vtkSphericalTransform - spherical to rectangular coords and back
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// .SECTION Description
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// vtkSphericalTransform will convert (r,phi,theta) coordinates to
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// (x,y,z) coordinates and back again. The angles are given in radians.
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// By default, it converts cylindrical coordinates to rectangular, but
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// GetInverse() returns a transform that will do the opposite. The equation
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// that is used is x = r*sin(phi)*cos(theta), y = r*sin(phi)*sin(theta),
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// z = r*cos(phi).
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// .SECTION Caveats
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// This transform is not well behaved along the line x=y=0 (i.e. along
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// the z-axis)
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// .SECTION see also
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// vtkCylindricalTransform vtkGeneralTransform
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#ifndef __vtkSphericalTransform_h
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#define __vtkSphericalTransform_h
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#include "vtkWarpTransform.h"
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class VTK_COMMON_EXPORT vtkSphericalTransform : public vtkWarpTransform
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{
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public:
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static vtkSphericalTransform *New();
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vtkTypeRevisionMacro(vtkSphericalTransform,vtkWarpTransform);
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virtual void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Make another transform of the same type.
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vtkAbstractTransform *MakeTransform();
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protected:
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vtkSphericalTransform();
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~vtkSphericalTransform();
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// Description:
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// Copy this transform from another of the same type.
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void InternalDeepCopy(vtkAbstractTransform *transform);
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// Description:
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// Internal functions for calculating the transformation.
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void ForwardTransformPoint(const float in[3], float out[3]);
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void ForwardTransformPoint(const double in[3], double out[3]);
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void ForwardTransformDerivative(const float in[3], float out[3],
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float derivative[3][3]);
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void ForwardTransformDerivative(const double in[3], double out[3],
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double derivative[3][3]);
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void InverseTransformPoint(const float in[3], float out[3]);
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void InverseTransformPoint(const double in[3], double out[3]);
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void InverseTransformDerivative(const float in[3], float out[3],
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float derivative[3][3]);
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void InverseTransformDerivative(const double in[3], double out[3],
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double derivative[3][3]);
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private:
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vtkSphericalTransform(const vtkSphericalTransform&); // Not implemented.
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void operator=(const vtkSphericalTransform&); // Not implemented.
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};
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#endif
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