VTK  9.2.6
vtkClosestPointStrategy.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkClosestPointStrategy.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=========================================================================*/
31
32#ifndef vtkClosestPointStrategy_h
33#define vtkClosestPointStrategy_h
34
35#include "vtkCell.h" //inline SelectCell
36#include "vtkCommonDataModelModule.h" // For export macro
37#include "vtkFindCellStrategy.h"
38#include "vtkGenericCell.h" //inline SelectCell
39#include "vtkPointSet.h" //inline SelectCell
40
41#include <vector> // For tracking visited cells
42
43class vtkIdList;
45
46class VTKCOMMONDATAMODEL_EXPORT vtkClosestPointStrategy : public vtkFindCellStrategy
47{
48public:
53
55
59 void PrintSelf(ostream& os, vtkIndent indent) override;
61
68 int Initialize(vtkPointSet* ps) override;
69
74 vtkIdType FindCell(double x[3], vtkCell* cell, vtkGenericCell* gencell, vtkIdType cellId,
75 double tol2, int& subId, double pcoords[3], double* weights) override;
76
81 vtkIdType FindClosestPointWithinRadius(double x[3], double radius, double closestPoint[3],
82 vtkGenericCell* cell, vtkIdType& cellId, int& subId, double& dist2, int& inside) override;
83
87 bool InsideCellBounds(double x[3], vtkIdType cellId) override;
88
90
99
103 vtkCell* SelectCell(vtkPointSet* self, vtkIdType cellId, vtkCell* cell, vtkGenericCell* gencell);
104
112
113protected:
116
117 std::vector<unsigned char> VisitedCells; // boolean array to track visited cells
118 vtkNew<vtkIdList> VisitedCellIds; // list of visited cell ids to reset boolean array
123 std::vector<double> Weights;
124
126
127private:
129 void operator=(const vtkClosestPointStrategy&) = delete;
130};
131
132// Handle cases where starting cell is provided or not
134 vtkPointSet* self, vtkIdType cellId, vtkCell* cell, vtkGenericCell* gencell)
135{
136 if (!cell)
137 {
138 if (gencell)
139 {
140 self->GetCell(cellId, gencell);
141 cell = gencell;
142 }
143 else
144 {
145 cell = self->GetCell(cellId);
146 }
147 }
148 return cell;
149}
150
151#endif
abstract class to quickly locate points in 3-space
abstract class to specify cell behavior
Definition vtkCell.h:61
vtkIdType FindCell(double x[3], vtkCell *cell, vtkGenericCell *gencell, vtkIdType cellId, double tol2, int &subId, double pcoords[3], double *weights) override
Implement the specific strategy.
vtkIdType FindClosestPointWithinRadius(double x[3], double radius, double closestPoint[3], vtkGenericCell *cell, vtkIdType &cellId, int &subId, double &dist2, int &inside) override
Implement the specific strategy.
void PrintSelf(ostream &os, vtkIndent indent) override
Standard methods for type information and printing.
static vtkClosestPointStrategy * New()
Construct a vtkFindCellStrategy subclass.
int Initialize(vtkPointSet *ps) override
Provide the necessary initialization method (see superclass for more information).
void CopyParameters(vtkFindCellStrategy *from) override
Copy essential parameters between instances of this class.
vtkCell * SelectCell(vtkPointSet *self, vtkIdType cellId, vtkCell *cell, vtkGenericCell *gencell)
Subclasses use this method to select the current cell.
~vtkClosestPointStrategy() override
virtual void SetPointLocator(vtkAbstractPointLocator *)
Set / get an instance of vtkAbstractPointLocator which is used to implement the strategy for FindCell...
vtkAbstractPointLocator * PointLocator
std::vector< unsigned char > VisitedCells
bool InsideCellBounds(double x[3], vtkIdType cellId) override
Implement the specific strategy.
provides thread-safe access to cells
list of point or cell ids
Definition vtkIdList.h:34
a simple class to control print indentation
Definition vtkIndent.h:40
Allocate and hold a VTK object.
Definition vtkNew.h:62
concrete class for storing a set of points
Definition vtkPointSet.h:70
vtkCell * GetCell(vtkIdType) override
This method always return a vtkEmptyCell, as there is no cell in a vtkPointSet.
int vtkIdType
Definition vtkType.h:332