VTK  9.2.6
vtkTransform2D.h
Go to the documentation of this file.
1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkTransform2D.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
15 
41 #ifndef vtkTransform2D_h
42 #define vtkTransform2D_h
43 
44 #include "vtkCommonTransformsModule.h" // For export macro
45 #include "vtkObject.h"
46 
47 #include "vtkMatrix3x3.h" // Needed for inline methods
48 
49 class vtkPoints2D;
50 
51 class VTKCOMMONTRANSFORMS_EXPORT vtkTransform2D : public vtkObject
52 {
53 public:
54  static vtkTransform2D* New();
55  vtkTypeMacro(vtkTransform2D, vtkObject);
56  void PrintSelf(ostream& os, vtkIndent indent) override;
57 
61  void Identity();
62 
66  void Inverse();
67 
72  void Translate(double x, double y);
73  void Translate(const double x[2]) { this->Translate(x[0], x[1]); }
74  void Translate(const float x[2]) { this->Translate(x[0], x[1]); }
75 
80  void Rotate(double angle);
81 
86  void Scale(double x, double y);
87  void Scale(const double s[2]) { this->Scale(s[0], s[1]); }
88  void Scale(const float s[2]) { this->Scale(s[0], s[1]); }
89 
93  void SetMatrix(vtkMatrix3x3* matrix) { this->SetMatrix(matrix->GetData()); }
94  void SetMatrix(const double elements[9]);
95 
97 
100  vtkGetObjectMacro(Matrix, vtkMatrix3x3);
101  void GetMatrix(vtkMatrix3x3* matrix);
103 
105 
110  void GetPosition(double pos[2]);
111  void GetPosition(float pos[2])
112  {
113  double temp[2];
114  this->GetPosition(temp);
115  pos[0] = static_cast<float>(temp[0]);
116  pos[1] = static_cast<float>(temp[1]);
117  }
119 
121 
126  void GetScale(double scale[2]);
127  void GetScale(float pos[2])
128  {
129  double temp[2];
130  this->GetScale(temp);
131  pos[0] = static_cast<float>(temp[0]);
132  pos[1] = static_cast<float>(temp[1]);
133  }
135 
140  void GetInverse(vtkMatrix3x3* inverse);
141 
147  void GetTranspose(vtkMatrix3x3* transpose);
148 
152  vtkMTimeType GetMTime() override;
153 
159  void TransformPoints(const float* inPts, float* outPts, int n);
160 
166  void TransformPoints(const double* inPts, double* outPts, int n);
167 
172  void TransformPoints(vtkPoints2D* inPts, vtkPoints2D* outPts);
173 
179  void InverseTransformPoints(const float* inPts, float* outPts, int n);
180 
186  void InverseTransformPoints(const double* inPts, double* outPts, int n);
187 
192  void InverseTransformPoints(vtkPoints2D* inPts, vtkPoints2D* outPts);
193 
195 
200  void MultiplyPoint(const float in[3], float out[3]) { this->GetMatrix()->MultiplyPoint(in, out); }
201  void MultiplyPoint(const double in[3], double out[3])
202  {
203  this->GetMatrix()->MultiplyPoint(in, out);
204  }
206 
207 protected:
208  vtkTransform2D();
209  ~vtkTransform2D() override;
210 
211  void InternalDeepCopy(vtkTransform2D* t);
212 
215 
216 private:
217  vtkTransform2D(const vtkTransform2D&) = delete;
218  void operator=(const vtkTransform2D&) = delete;
219 };
220 
221 #endif
vtkMatrix3x3 * InverseMatrix
abstract base class for most VTK objects
Definition: vtkObject.h:62
void GetScale(float pos[2])
Return the x and y scale from the current transformation matrix as an array of two floating point num...
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkTypeUInt32 vtkMTimeType
Definition: vtkType.h:287
void Translate(const double x[2])
a simple class to control print indentation
Definition: vtkIndent.h:39
represent and manipulate 2D points
Definition: vtkPoints2D.h:36
virtual vtkMTimeType GetMTime()
Return this object's modified time.
describes linear transformations via a 3x3 matrix
double * GetData()
Return a pointer to the first element of the matrix (double[9]).
Definition: vtkMatrix3x3.h:180
void MultiplyPoint(const double in[3], double out[3])
Use this method only if you wish to compute the transformation in homogeneous (x,y,w) coordinates, otherwise use TransformPoint().
vtkMatrix3x3 * Matrix
void GetPosition(float pos[2])
Return the position from the current transformation matrix as an array of two floating point numbers...
void Translate(const float x[2])
void SetMatrix(vtkMatrix3x3 *matrix)
Set the current matrix directly.
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on...
represent and manipulate 3x3 transformation matrices
Definition: vtkMatrix3x3.h:36
void Scale(const double s[2])
void MultiplyPoint(const float in[3], float out[3])
Use this method only if you wish to compute the transformation in homogeneous (x,y,w) coordinates, otherwise use TransformPoint().
void Scale(const float s[2])