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117 lines
3.6 KiB
C++
117 lines
3.6 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 "vtkAbstractTransform.h"
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#include "vtkCommonTransformsModule.h" // For export macro
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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) 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) 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, vtkPoints* outPts, vtkDataArray* inNms,
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vtkDataArray* outNms, vtkDataArray* inVrs, vtkDataArray* outVrs, int nOptionalVectors = 0,
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vtkDataArray** inVrsArr = nullptr, vtkDataArray** outVrsArr = nullptr) 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()
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{
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this->Update();
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return this->Matrix;
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}
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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]) override;
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void InternalTransformPoint(const double in[3], double out[3]) 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(
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const float in[3], float out[3], float derivative[3][3]) override;
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void InternalTransformDerivative(
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const double in[3], double out[3], double derivative[3][3]) override;
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//@}
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protected:
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vtkHomogeneousTransform();
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~vtkHomogeneousTransform() override;
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void InternalDeepCopy(vtkAbstractTransform* transform) override;
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vtkMatrix4x4* Matrix;
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private:
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vtkHomogeneousTransform(const vtkHomogeneousTransform&) = delete;
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void operator=(const vtkHomogeneousTransform&) = delete;
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};
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#endif
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