VTK  9.1.0
vtkTransform2D.h
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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
35#ifndef vtkTransform2D_h
36#define vtkTransform2D_h
37
38#include "vtkCommonTransformsModule.h" // For export macro
39#include "vtkObject.h"
40
41#include "vtkMatrix3x3.h" // Needed for inline methods
42
43class vtkPoints2D;
44
45class VTKCOMMONTRANSFORMS_EXPORT vtkTransform2D : public vtkObject
46{
47public:
49 vtkTypeMacro(vtkTransform2D, vtkObject);
50 void PrintSelf(ostream& os, vtkIndent indent) override;
51
55 void Identity();
56
60 void Inverse();
61
66 void Translate(double x, double y);
67 void Translate(const double x[2]) { this->Translate(x[0], x[1]); }
68 void Translate(const float x[2]) { this->Translate(x[0], x[1]); }
69
74 void Rotate(double angle);
75
80 void Scale(double x, double y);
81 void Scale(const double s[2]) { this->Scale(s[0], s[1]); }
82 void Scale(const float s[2]) { this->Scale(s[0], s[1]); }
83
87 void SetMatrix(vtkMatrix3x3* matrix) { this->SetMatrix(matrix->GetData()); }
88 void SetMatrix(const double elements[9]);
89
91
94 vtkGetObjectMacro(Matrix, vtkMatrix3x3);
95 void GetMatrix(vtkMatrix3x3* matrix);
97
99
104 void GetPosition(double pos[2]);
105 void GetPosition(float pos[2])
106 {
107 double temp[2];
108 this->GetPosition(temp);
109 pos[0] = static_cast<float>(temp[0]);
110 pos[1] = static_cast<float>(temp[1]);
111 }
113
115
120 void GetScale(double scale[2]);
121 void GetScale(float pos[2])
122 {
123 double temp[2];
124 this->GetScale(temp);
125 pos[0] = static_cast<float>(temp[0]);
126 pos[1] = static_cast<float>(temp[1]);
127 }
129
134 void GetInverse(vtkMatrix3x3* inverse);
135
141 void GetTranspose(vtkMatrix3x3* transpose);
142
147
153 void TransformPoints(const float* inPts, float* outPts, int n);
154
160 void TransformPoints(const double* inPts, double* outPts, int n);
161
167
173 void InverseTransformPoints(const float* inPts, float* outPts, int n);
174
180 void InverseTransformPoints(const double* inPts, double* outPts, int n);
181
187
189
194 void MultiplyPoint(const float in[3], float out[3]) { this->GetMatrix()->MultiplyPoint(in, out); }
195 void MultiplyPoint(const double in[3], double out[3])
196 {
197 this->GetMatrix()->MultiplyPoint(in, out);
198 }
200
201protected:
203 ~vtkTransform2D() override;
204
206
209
210private:
211 vtkTransform2D(const vtkTransform2D&) = delete;
212 void operator=(const vtkTransform2D&) = delete;
213};
214
215#endif
a simple class to control print indentation
Definition: vtkIndent.h:113
represent and manipulate 3x3 transformation matrices
Definition: vtkMatrix3x3.h:63
double * GetData()
Return a pointer to the first element of the matrix (double[9]).
Definition: vtkMatrix3x3.h:206
abstract base class for most VTK objects
Definition: vtkObject.h:82
represent and manipulate 2D points
Definition: vtkPoints2D.h:34
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:287