VTK  9.4.20241222
vtkTransform2D.h
Go to the documentation of this file.
1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-License-Identifier: BSD-3-Clause
3
29#ifndef vtkTransform2D_h
30#define vtkTransform2D_h
31
32#include "vtkCommonTransformsModule.h" // For export macro
33#include "vtkObject.h"
34#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
35
36#include "vtkMatrix3x3.h" // Needed for inline methods
37
38VTK_ABI_NAMESPACE_BEGIN
39class vtkPoints2D;
40
41class VTKCOMMONTRANSFORMS_EXPORT VTK_MARSHALAUTO vtkTransform2D : public vtkObject
42{
43public:
45 vtkTypeMacro(vtkTransform2D, vtkObject);
46 void PrintSelf(ostream& os, vtkIndent indent) override;
47
51 void Identity();
52
56 void Inverse();
57
62 void Translate(double x, double y);
63 void Translate(const double x[2]) { this->Translate(x[0], x[1]); }
64 void Translate(const float x[2]) { this->Translate(x[0], x[1]); }
65
70 void Rotate(double angle);
71
76 void Scale(double x, double y);
77 void Scale(const double s[2]) { this->Scale(s[0], s[1]); }
78 void Scale(const float s[2]) { this->Scale(s[0], s[1]); }
79
83 void SetMatrix(vtkMatrix3x3* matrix) { this->SetMatrix(matrix->GetData()); }
84 void SetMatrix(const double elements[9]);
85
87
90 vtkGetObjectMacro(Matrix, vtkMatrix3x3);
91 void GetMatrix(vtkMatrix3x3* matrix);
93
95
100 void GetPosition(double pos[2]);
101 void GetPosition(float pos[2])
102 {
103 double temp[2];
104 this->GetPosition(temp);
105 pos[0] = static_cast<float>(temp[0]);
106 pos[1] = static_cast<float>(temp[1]);
107 }
109
111
116 void GetScale(double scale[2]);
117 void GetScale(float pos[2])
118 {
119 double temp[2];
120 this->GetScale(temp);
121 pos[0] = static_cast<float>(temp[0]);
122 pos[1] = static_cast<float>(temp[1]);
123 }
125
130 void GetInverse(vtkMatrix3x3* inverse);
131
137 void GetTranspose(vtkMatrix3x3* transpose);
138
143
149 void TransformPoints(const float* inPts, float* outPts, int n);
150
156 void TransformPoints(const double* inPts, double* outPts, int n);
157
163
169 void InverseTransformPoints(const float* inPts, float* outPts, int n);
170
176 void InverseTransformPoints(const double* inPts, double* outPts, int n);
177
183
185
190 void MultiplyPoint(const float in[3], float out[3]) { this->GetMatrix()->MultiplyPoint(in, out); }
191 void MultiplyPoint(const double in[3], double out[3])
192 {
193 this->GetMatrix()->MultiplyPoint(in, out);
194 }
196
197protected:
199 ~vtkTransform2D() override;
200
202
205
206private:
207 vtkTransform2D(const vtkTransform2D&) = delete;
208 void operator=(const vtkTransform2D&) = delete;
209};
210
211VTK_ABI_NAMESPACE_END
212#endif
a simple class to control print indentation
Definition vtkIndent.h:108
represent and manipulate 3x3 transformation matrices
double * GetData()
Return a pointer to the first element of the matrix (double[9]).
abstract base class for most VTK objects
Definition vtkObject.h:162
represent and manipulate 2D points
Definition vtkPoints2D.h:27
describes linear transformations via a 3x3 matrix
vtkMTimeType GetMTime() override
Override GetMTime to account for input and concatenation.
void SetMatrix(vtkMatrix3x3 *matrix)
Set the current matrix directly.
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 Translate(const float x[2])
void MultiplyPoint(const double in[3], double out[3])
Use this method only if you wish to compute the transformation in homogeneous (x,y,...
void GetTranspose(vtkMatrix3x3 *transpose)
Return a matrix which is the transpose of the current transformation matrix.
void GetPosition(float pos[2])
Return the position from the current transformation matrix as an array of two floating point numbers.
void Rotate(double angle)
Create a rotation matrix and concatenate it with the current transformation.
vtkMatrix3x3 * InverseMatrix
void Scale(const float s[2])
void TransformPoints(const float *inPts, float *outPts, int n)
Apply the transformation to a series of points, and append the results to outPts.
void SetMatrix(const double elements[9])
vtkMatrix3x3 * Matrix
void GetInverse(vtkMatrix3x3 *inverse)
Return a matrix which is the inverse of the current transformation matrix.
void InverseTransformPoints(const float *inPts, float *outPts, int n)
Apply the transformation to a series of points, and append the results to outPts.
~vtkTransform2D() override
void MultiplyPoint(const float in[3], float out[3])
Use this method only if you wish to compute the transformation in homogeneous (x,y,...
void Scale(double x, double y)
Create a scale matrix (i.e.
void Inverse()
Invert the transformation.
void InternalDeepCopy(vtkTransform2D *t)
static vtkTransform2D * New()
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void Identity()
Set the transformation to the identity transformation.
void GetScale(double scale[2])
Return the x and y scale from the current transformation matrix as an array of two floating point num...
void Scale(const double s[2])
void GetMatrix(vtkMatrix3x3 *matrix)
Get the underlying 3x3 matrix.
void InverseTransformPoints(vtkPoints2D *inPts, vtkPoints2D *outPts)
Apply the transformation to a series of points, and append the results to outPts.
void InverseTransformPoints(const double *inPts, double *outPts, int n)
Apply the transformation to a series of points, and append the results to outPts.
void TransformPoints(const double *inPts, double *outPts, int n)
Apply the transformation to a series of points, and append the results to outPts.
void Translate(const double x[2])
void GetPosition(double pos[2])
Return the position from the current transformation matrix as an array of two floating point numbers.
void Translate(double x, double y)
Create a translation matrix and concatenate it with the current transformation.
void TransformPoints(vtkPoints2D *inPts, vtkPoints2D *outPts)
Apply the transformation to a series of points, and append the results to outPts.
vtkTypeUInt32 vtkMTimeType
Definition vtkType.h:270
#define VTK_MARSHALAUTO