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122 lines
3.8 KiB
C++
122 lines
3.8 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkHomogeneousTransform.h
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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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/**
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* @class vtkHomogeneousTransform
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* @brief superclass for homogeneous transformations
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*
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* vtkHomogeneousTransform provides a generic interface for homogeneous
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* transformations, i.e. transformations which can be represented by
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* multiplying a 4x4 matrix with a homogeneous coordinate.
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* @sa
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* vtkPerspectiveTransform vtkLinearTransform vtkIdentityTransform
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*/
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#ifndef vtkHomogeneousTransform_h
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#define vtkHomogeneousTransform_h
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#include "vtkCommonTransformsModule.h" // For export macro
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#include "vtkAbstractTransform.h"
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class vtkMatrix4x4;
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class VTKCOMMONTRANSFORMS_EXPORT vtkHomogeneousTransform : public vtkAbstractTransform
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{
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public:
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vtkTypeMacro(vtkHomogeneousTransform,vtkAbstractTransform);
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void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
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/**
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* Apply the transformation to a series of points, and append the
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* results to outPts.
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*/
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void TransformPoints(vtkPoints *inPts, vtkPoints *outPts) VTK_OVERRIDE;
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/**
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* Apply the transformation to a combination of points, normals
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* and vectors.
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*/
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void TransformPointsNormalsVectors(vtkPoints *inPts,
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vtkPoints *outPts,
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vtkDataArray *inNms,
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vtkDataArray *outNms,
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vtkDataArray *inVrs,
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vtkDataArray *outVrs) VTK_OVERRIDE;
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/**
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* Get a copy of the internal transformation matrix. The
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* transform is Updated first, to guarantee that the matrix
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* is valid.
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*/
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void GetMatrix(vtkMatrix4x4 *m);
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/**
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* Get a pointer to an internal vtkMatrix4x4 that represents
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* the transformation. An Update() is called on the transform
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* to ensure that the matrix is up-to-date when you get it.
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* You should not store the matrix pointer anywhere because it
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* might become stale.
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*/
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vtkMatrix4x4 *GetMatrix() { this->Update(); return this->Matrix; };
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/**
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* Just like GetInverse(), but includes typecast to vtkHomogeneousTransform.
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*/
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vtkHomogeneousTransform *GetHomogeneousInverse()
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{
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return static_cast<vtkHomogeneousTransform *>(this->GetInverse());
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}
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//@{
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/**
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* This will calculate the transformation without calling Update.
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* Meant for use only within other VTK classes.
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*/
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void InternalTransformPoint(const float in[3], float out[3]) VTK_OVERRIDE;
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void InternalTransformPoint(const double in[3], double out[3]) VTK_OVERRIDE;
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//@}
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//@{
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/**
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* This will calculate the transformation as well as its derivative
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* without calling Update. Meant for use only within other VTK
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* classes.
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*/
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void InternalTransformDerivative(const float in[3], float out[3],
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float derivative[3][3]) VTK_OVERRIDE;
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void InternalTransformDerivative(const double in[3], double out[3],
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double derivative[3][3]) VTK_OVERRIDE;
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//@}
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protected:
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vtkHomogeneousTransform();
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~vtkHomogeneousTransform() VTK_OVERRIDE;
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void InternalDeepCopy(vtkAbstractTransform *transform) VTK_OVERRIDE;
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vtkMatrix4x4 *Matrix;
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private:
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vtkHomogeneousTransform(const vtkHomogeneousTransform&) VTK_DELETE_FUNCTION;
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void operator=(const vtkHomogeneousTransform&) VTK_DELETE_FUNCTION;
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};
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#endif
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