VTK  9.0.1
vtkRibbonFilter.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkRibbonFilter.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 =========================================================================*/
36 #ifndef vtkRibbonFilter_h
37 #define vtkRibbonFilter_h
38 
39 #include "vtkFiltersModelingModule.h" // For export macro
40 #include "vtkPolyDataAlgorithm.h"
41 
42 #define VTK_TCOORDS_OFF 0
43 #define VTK_TCOORDS_FROM_NORMALIZED_LENGTH 1
44 #define VTK_TCOORDS_FROM_LENGTH 2
45 #define VTK_TCOORDS_FROM_SCALARS 3
46 
47 class vtkCellArray;
48 class vtkCellData;
49 class vtkDataArray;
50 class vtkFloatArray;
51 class vtkPointData;
52 class vtkPoints;
53 
54 class VTKFILTERSMODELING_EXPORT vtkRibbonFilter : public vtkPolyDataAlgorithm
55 {
56 public:
58  void PrintSelf(ostream& os, vtkIndent indent) override;
59 
64  static vtkRibbonFilter* New();
65 
67 
71  vtkSetClampMacro(Width, double, 0, VTK_DOUBLE_MAX);
72  vtkGetMacro(Width, double);
74 
76 
80  vtkSetClampMacro(Angle, double, 0, 360);
81  vtkGetMacro(Angle, double);
83 
85 
89  vtkSetMacro(VaryWidth, vtkTypeBool);
90  vtkGetMacro(VaryWidth, vtkTypeBool);
91  vtkBooleanMacro(VaryWidth, vtkTypeBool);
93 
95 
99  vtkSetMacro(WidthFactor, double);
100  vtkGetMacro(WidthFactor, double);
102 
104 
108  vtkSetVector3Macro(DefaultNormal, double);
109  vtkGetVectorMacro(DefaultNormal, double, 3);
111 
113 
117  vtkSetMacro(UseDefaultNormal, vtkTypeBool);
118  vtkGetMacro(UseDefaultNormal, vtkTypeBool);
119  vtkBooleanMacro(UseDefaultNormal, vtkTypeBool);
121 
123 
127  vtkSetClampMacro(GenerateTCoords, int, VTK_TCOORDS_OFF, VTK_TCOORDS_FROM_SCALARS);
128  vtkGetMacro(GenerateTCoords, int);
129  void SetGenerateTCoordsToOff() { this->SetGenerateTCoords(VTK_TCOORDS_OFF); }
131  {
132  this->SetGenerateTCoords(VTK_TCOORDS_FROM_NORMALIZED_LENGTH);
133  }
134  void SetGenerateTCoordsToUseLength() { this->SetGenerateTCoords(VTK_TCOORDS_FROM_LENGTH); }
135  void SetGenerateTCoordsToUseScalars() { this->SetGenerateTCoords(VTK_TCOORDS_FROM_SCALARS); }
136  const char* GetGenerateTCoordsAsString();
138 
140 
146  vtkSetClampMacro(TextureLength, double, 0.000001, VTK_INT_MAX);
147  vtkGetMacro(TextureLength, double);
149 
150 protected:
151  vtkRibbonFilter();
152  ~vtkRibbonFilter() override;
153 
155  double Width;
156  double Angle;
157  vtkTypeBool VaryWidth; // controls whether width varies with scalar data
158  double WidthFactor;
159  double DefaultNormal[3];
161  int GenerateTCoords; // control texture coordinate generation
162  double TextureLength; // this length is mapped to [0,1) texture space
163 
164  // Helper methods
165  int GeneratePoints(vtkIdType offset, vtkIdType npts, const vtkIdType* pts, vtkPoints* inPts,
166  vtkPoints* newPts, vtkPointData* pd, vtkPointData* outPD, vtkFloatArray* newNormals,
167  vtkDataArray* inScalars, double range[2], vtkDataArray* inNormals);
168  void GenerateStrip(vtkIdType offset, vtkIdType npts, const vtkIdType* pts, vtkIdType inCellId,
169  vtkCellData* cd, vtkCellData* outCD, vtkCellArray* newStrips);
170  void GenerateTextureCoords(vtkIdType offset, vtkIdType npts, const vtkIdType* pts,
171  vtkPoints* inPts, vtkDataArray* inScalars, vtkFloatArray* newTCoords);
172  vtkIdType ComputeOffset(vtkIdType offset, vtkIdType npts);
173 
174  // Helper data members
175  double Theta;
176 
177 private:
178  vtkRibbonFilter(const vtkRibbonFilter&) = delete;
179  void operator=(const vtkRibbonFilter&) = delete;
180 };
181 
182 #endif
#define VTK_TCOORDS_OFF
void SetGenerateTCoordsToOff()
Control whether and how texture coordinates are produced.
#define VTK_TCOORDS_FROM_NORMALIZED_LENGTH
represent and manipulate point attribute data
Definition: vtkPointData.h:31
vtkTypeBool UseDefaultNormal
create oriented ribbons from lines defined in polygonal dataset
#define VTK_DOUBLE_MAX
Definition: vtkType.h:165
Store vtkAlgorithm input/output information.
virtual int RequestData(vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
This is called by the superclass.
#define VTK_INT_MAX
Definition: vtkType.h:155
represent and manipulate cell attribute data
Definition: vtkCellData.h:32
dynamic, self-adjusting array of float
Definition: vtkFloatArray.h:35
int vtkIdType
Definition: vtkType.h:338
void SetGenerateTCoordsToUseLength()
Control whether and how texture coordinates are produced.
static vtkPolyDataAlgorithm * New()
int vtkTypeBool
Definition: vtkABI.h:69
Superclass for algorithms that produce only polydata as output.
a simple class to control print indentation
Definition: vtkIndent.h:33
void SetGenerateTCoordsToUseScalars()
Control whether and how texture coordinates are produced.
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:49
vtkTypeBool VaryWidth
object to represent cell connectivity
Definition: vtkCellArray.h:179
void SetGenerateTCoordsToNormalizedLength()
Control whether and how texture coordinates are produced.
#define VTK_TCOORDS_FROM_LENGTH
#define VTK_TCOORDS_FROM_SCALARS
Store zero or more vtkInformation instances.
represent and manipulate 3D points
Definition: vtkPoints.h:33
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.