VTK  9.2.6
vtkSplineFilter.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkSplineFilter.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 =========================================================================*/
40 #ifndef vtkSplineFilter_h
41 #define vtkSplineFilter_h
42 
43 #include "vtkFiltersGeneralModule.h" // For export macro
44 #include "vtkPolyDataAlgorithm.h"
45 
46 #define VTK_SUBDIVIDE_SPECIFIED 0
47 #define VTK_SUBDIVIDE_LENGTH 1
48 
49 #define VTK_TCOORDS_OFF 0
50 #define VTK_TCOORDS_FROM_NORMALIZED_LENGTH 1
51 #define VTK_TCOORDS_FROM_LENGTH 2
52 #define VTK_TCOORDS_FROM_SCALARS 3
53 
54 class vtkCellArray;
55 class vtkCellData;
56 class vtkFloatArray;
57 class vtkPointData;
58 class vtkPoints;
59 class vtkSpline;
60 
61 class VTKFILTERSGENERAL_EXPORT vtkSplineFilter : public vtkPolyDataAlgorithm
62 {
63 public:
65  void PrintSelf(ostream& os, vtkIndent indent) override;
66 
71  static vtkSplineFilter* New();
72 
74 
78  vtkSetClampMacro(MaximumNumberOfSubdivisions, int, 1, VTK_INT_MAX);
79  vtkGetMacro(MaximumNumberOfSubdivisions, int);
81 
83 
86  vtkSetClampMacro(Subdivide, int, VTK_SUBDIVIDE_SPECIFIED, VTK_SUBDIVIDE_LENGTH);
87  vtkGetMacro(Subdivide, int);
88  void SetSubdivideToSpecified() { this->SetSubdivide(VTK_SUBDIVIDE_SPECIFIED); }
89  void SetSubdivideToLength() { this->SetSubdivide(VTK_SUBDIVIDE_LENGTH); }
90  const char* GetSubdivideAsString();
92 
94 
99  vtkSetClampMacro(NumberOfSubdivisions, int, 1, VTK_INT_MAX);
100  vtkGetMacro(NumberOfSubdivisions, int);
102 
104 
109  vtkSetClampMacro(Length, double, 0.0000001, VTK_DOUBLE_MAX);
110  vtkGetMacro(Length, double);
112 
114 
117  virtual void SetSpline(vtkSpline*);
118  vtkGetObjectMacro(Spline, vtkSpline);
120 
122 
129  vtkSetClampMacro(GenerateTCoords, int, VTK_TCOORDS_OFF, VTK_TCOORDS_FROM_SCALARS);
130  vtkGetMacro(GenerateTCoords, int);
131  void SetGenerateTCoordsToOff() { this->SetGenerateTCoords(VTK_TCOORDS_OFF); }
133  {
134  this->SetGenerateTCoords(VTK_TCOORDS_FROM_NORMALIZED_LENGTH);
135  }
136  void SetGenerateTCoordsToUseLength() { this->SetGenerateTCoords(VTK_TCOORDS_FROM_LENGTH); }
137  void SetGenerateTCoordsToUseScalars() { this->SetGenerateTCoords(VTK_TCOORDS_FROM_SCALARS); }
138  const char* GetGenerateTCoordsAsString();
140 
142 
148  vtkSetClampMacro(TextureLength, double, 0.000001, VTK_INT_MAX);
149  vtkGetMacro(TextureLength, double);
151 
152 protected:
153  vtkSplineFilter();
154  ~vtkSplineFilter() override;
155 
156  // Usual data generation method
158 
162  double Length;
168  double TextureLength; // this length is mapped to [0,1) texture space
169 
170  // helper methods
171  int GeneratePoints(vtkIdType offset, vtkIdType npts, const vtkIdType* pts, vtkPoints* inPts,
172  vtkPoints* newPts, vtkPointData* pd, vtkPointData* outPD, int genTCoords,
173  vtkFloatArray* newTCoords);
174 
175  void GenerateLine(vtkIdType offset, vtkIdType numGenPts, vtkIdType inCellId, vtkCellData* cd,
176  vtkCellData* outCD, vtkCellArray* newLines);
177 
178  // helper members
180 
181 private:
182  vtkSplineFilter(const vtkSplineFilter&) = delete;
183  void operator=(const vtkSplineFilter&) = delete;
184 };
185 
186 #endif
#define VTK_SUBDIVIDE_SPECIFIED
void SetGenerateTCoordsToOff()
Control whether and how texture coordinates are produced.
#define VTK_TCOORDS_FROM_LENGTH
represent and manipulate point attribute data
Definition: vtkPointData.h:41
#define VTK_DOUBLE_MAX
Definition: vtkType.h:165
Store vtkAlgorithm input/output information.
generate uniformly subdivided polylines from a set of input polyline using a vtkSpline ...
virtual int RequestData(vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
This is called by the superclass.
#define VTK_INT_MAX
Definition: vtkType.h:155
vtkSpline * XSpline
represent and manipulate cell attribute data
Definition: vtkCellData.h:41
dynamic, self-adjusting array of float
Definition: vtkFloatArray.h:41
#define VTK_TCOORDS_FROM_NORMALIZED_LENGTH
void SetSubdivideToLength()
Specify how the number of subdivisions is determined.
int vtkIdType
Definition: vtkType.h:332
static vtkPolyDataAlgorithm * New()
void SetSubdivideToSpecified()
Specify how the number of subdivisions is determined.
Superclass for algorithms that produce only polydata as output.
a simple class to control print indentation
Definition: vtkIndent.h:39
spline abstract class for interpolating splines
Definition: vtkSpline.h:62
#define VTK_TCOORDS_OFF
#define VTK_TCOORDS_FROM_SCALARS
object to represent cell connectivity
Definition: vtkCellArray.h:186
void SetGenerateTCoordsToNormalizedLength()
Control whether and how texture coordinates are produced.
Store zero or more vtkInformation instances.
vtkSpline * YSpline
vtkFloatArray * TCoordMap
#define VTK_SUBDIVIDE_LENGTH
void SetGenerateTCoordsToUseScalars()
Control whether and how texture coordinates are produced.
vtkSpline * ZSpline
void SetGenerateTCoordsToUseLength()
Control whether and how texture coordinates are produced.
represent and manipulate 3D points
Definition: vtkPoints.h:39
vtkSpline * Spline
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.