VTK  9.3.0
vtkMarchingContourFilter.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
54 #ifndef vtkMarchingContourFilter_h
55 #define vtkMarchingContourFilter_h
56 
57 #include "vtkFiltersGeneralModule.h" // For export macro
58 #include "vtkPolyDataAlgorithm.h"
59 
60 #include "vtkContourValues.h" // Needed for direct access to ContourValues
61 
62 VTK_ABI_NAMESPACE_BEGIN
64 class vtkScalarTree;
65 
66 class VTKFILTERSGENERAL_EXPORT vtkMarchingContourFilter : public vtkPolyDataAlgorithm
67 {
68 public:
70  void PrintSelf(ostream& os, vtkIndent indent) override;
71 
77 
79 
82  void SetValue(int i, double value);
83  double GetValue(int i);
84  double* GetValues();
85  void GetValues(double* contourValues);
86  void SetNumberOfContours(int number);
87  vtkIdType GetNumberOfContours();
88  void GenerateValues(int numContours, double range[2]);
89  void GenerateValues(int numContours, double rangeStart, double rangeEnd);
91 
95  vtkMTimeType GetMTime() override;
96 
98 
104  vtkSetMacro(ComputeNormals, vtkTypeBool);
105  vtkGetMacro(ComputeNormals, vtkTypeBool);
106  vtkBooleanMacro(ComputeNormals, vtkTypeBool);
108 
110 
118  vtkSetMacro(ComputeGradients, vtkTypeBool);
119  vtkGetMacro(ComputeGradients, vtkTypeBool);
120  vtkBooleanMacro(ComputeGradients, vtkTypeBool);
122 
124 
127  vtkSetMacro(ComputeScalars, vtkTypeBool);
128  vtkGetMacro(ComputeScalars, vtkTypeBool);
129  vtkBooleanMacro(ComputeScalars, vtkTypeBool);
131 
133 
136  vtkSetMacro(UseScalarTree, vtkTypeBool);
137  vtkGetMacro(UseScalarTree, vtkTypeBool);
138  vtkBooleanMacro(UseScalarTree, vtkTypeBool);
140 
142 
147  vtkGetObjectMacro(Locator, vtkIncrementalPointLocator);
149 
155 
156 protected:
159 
162 
170 
171  // special contouring for structured points
172  void StructuredPointsContour(int dim, vtkDataSet* input, vtkPolyData* output);
173  // special contouring for image data
174  void ImageContour(int dim, vtkDataSet* input, vtkPolyData* output);
175  // default if not structured data
176  void DataSetContour(vtkDataSet* input, vtkPolyData* output);
177 
178 private:
180  void operator=(const vtkMarchingContourFilter&) = delete;
181 };
182 
187 inline void vtkMarchingContourFilter::SetValue(int i, double value)
188 {
189  this->ContourValues->SetValue(i, value);
190 }
191 
196 {
197  return this->ContourValues->GetValue(i);
198 }
199 
205 {
206  return this->ContourValues->GetValues();
207 }
208 
214 inline void vtkMarchingContourFilter::GetValues(double* contourValues)
215 {
216  this->ContourValues->GetValues(contourValues);
217 }
218 
225 {
226  this->ContourValues->SetNumberOfContours(number);
227 }
228 
233 {
234  return this->ContourValues->GetNumberOfContours();
235 }
236 
241 inline void vtkMarchingContourFilter::GenerateValues(int numContours, double range[2])
242 {
243  this->ContourValues->GenerateValues(numContours, range);
244 }
245 
251  int numContours, double rangeStart, double rangeEnd)
252 {
253  this->ContourValues->GenerateValues(numContours, rangeStart, rangeEnd);
254 }
255 
256 VTK_ABI_NAMESPACE_END
257 #endif
helper object to manage setting and generating contour values
int GetNumberOfContours()
Return the number of contours in the.
void SetNumberOfContours(int number)
Set the number of contours to place into the list.
void GenerateValues(int numContours, double range[2])
Generate numContours equally spaced contour values between specified range.
void SetValue(int i, double value)
Set the ith contour value.
double GetValue(int i)
Get the ith contour value.
double * GetValues()
Return a pointer to a list of contour values.
abstract class to specify dataset behavior
Definition: vtkDataSet.h:62
Abstract class in support of both point location and point insertion.
a simple class to control print indentation
Definition: vtkIndent.h:38
Store zero or more vtkInformation instances.
Store vtkAlgorithm input/output information.
generate isosurfaces/isolines from scalar values
vtkMTimeType GetMTime() override
Modified GetMTime Because we delegate to vtkContourValues.
vtkIncrementalPointLocator * Locator
void CreateDefaultLocator()
Create default locator.
vtkIdType GetNumberOfContours()
Get the number of contours in the list of contour values.
int FillInputPortInformation(int port, vtkInformation *info) override
Fill the input port information objects for this algorithm.
void SetNumberOfContours(int number)
Set the number of contours to place into the list.
~vtkMarchingContourFilter() override
static vtkMarchingContourFilter * New()
Construct object with initial range (0,1) and single contour value of 0.0.
double GetValue(int i)
Get the ith contour value.
void SetValue(int i, double value)
Methods to set / get contour values.
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
This is called by the superclass.
void GenerateValues(int numContours, double range[2])
Generate numContours equally spaced contour values between specified range.
double * GetValues()
Get a pointer to an array of contour values.
void ImageContour(int dim, vtkDataSet *input, vtkPolyData *output)
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void StructuredPointsContour(int dim, vtkDataSet *input, vtkPolyData *output)
void DataSetContour(vtkDataSet *input, vtkPolyData *output)
void SetLocator(vtkIncrementalPointLocator *locator)
Set / get a spatial locator for merging points.
Superclass for algorithms that produce only polydata as output.
concrete dataset represents vertices, lines, polygons, and triangle strips
Definition: vtkPolyData.h:89
organize data according to scalar values (used to accelerate contouring operations)
Definition: vtkScalarTree.h:44
@ info
Definition: vtkX3D.h:376
@ value
Definition: vtkX3D.h:220
@ port
Definition: vtkX3D.h:447
@ range
Definition: vtkX3D.h:238
int vtkTypeBool
Definition: vtkABI.h:64
int vtkIdType
Definition: vtkType.h:315
vtkTypeUInt32 vtkMTimeType
Definition: vtkType.h:270