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/*=========================================================================
Program: Visualization Toolkit
Module: vtkIdentityTransform.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 vtkIdentityTransform - a transform that doesn't do anything
// .SECTION Description
// vtkIdentityTransform is a transformation which will simply pass coordinate
// data unchanged. All other transform types can also do this, however,
// the vtkIdentityTransform does so with much greater efficiency.
// .SECTION see also
// vtkLinearTransform
#ifndef __vtkIdentityTransform_h
#define __vtkIdentityTransform_h
#include "vtkCommonTransformsModule.h" // For export macro
#include "vtkLinearTransform.h"
class VTKCOMMONTRANSFORMS_EXPORT vtkIdentityTransform : public vtkLinearTransform
{
public:
static vtkIdentityTransform *New();
vtkTypeMacro(vtkIdentityTransform,vtkLinearTransform);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Apply the transformation to a series of points, and append the
// results to outPts.
void TransformPoints(vtkPoints *inPts, vtkPoints *outPts);
// Description:
// Apply the transformation to a series of normals, and append the
// results to outNms.
void TransformNormals(vtkDataArray *inNms, vtkDataArray *outNms);
// Description:
// Apply the transformation to a series of vectors, and append the
// results to outVrs.
void TransformVectors(vtkDataArray *inVrs, vtkDataArray *outVrs);
// Description:
// Apply the transformation to a combination of points, normals
// and vectors.
void TransformPointsNormalsVectors(vtkPoints *inPts,
vtkPoints *outPts,
vtkDataArray *inNms,
vtkDataArray *outNms,
vtkDataArray *inVrs,
vtkDataArray *outVrs);
// Invert the transformation. This doesn't do anything to the
// identity transformation.
void Inverse() {}
// Description:
// This will calculate the transformation without calling Update.
// Meant for use only within other VTK classes.
void InternalTransformPoint(const float in[3], float out[3]);
void InternalTransformPoint(const double in[3], double out[3]);
// Description:
// This will calculate the transformation without calling Update.
// Meant for use only within other VTK classes.
void InternalTransformNormal(const float in[3], float out[3]);
void InternalTransformNormal(const double in[3], double out[3]);
// Description:
// This will calculate the transformation without calling Update.
// Meant for use only within other VTK classes.
void InternalTransformVector(const float in[3], float out[3]);
void InternalTransformVector(const double in[3], double out[3]);
// Description:
// This will calculate the transformation as well as its derivative
// without calling Update. Meant for use only within other VTK
// classes.
void InternalTransformDerivative(const float in[3], float out[3],
float derivative[3][3]);
void InternalTransformDerivative(const double in[3], double out[3],
double derivative[3][3]);
// Description:
// Make a transform of the same type. This will actually
// return the same transform.
vtkAbstractTransform *MakeTransform();
protected:
vtkIdentityTransform();
~vtkIdentityTransform();
void InternalDeepCopy(vtkAbstractTransform *t);
private:
vtkIdentityTransform(const vtkIdentityTransform&); // Not implemented.
void operator=(const vtkIdentityTransform&); // Not implemented.
};
#endif
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