141#ifndef vtkCellLocator_h
142#define vtkCellLocator_h
145#include "vtkCommonDataModelModule.h"
147class vtkNeighborCells;
180 int IntersectWithLine(
const double a0[3],
const double a1[3],
double tol,
double& t,
double x[3],
196 vtkIdType& cellId,
int& subId,
double& dist2)
override;
236 double x[3],
double tol2,
vtkGenericCell* GenCell,
double pcoords[3],
double* weights)
override;
254 const double p1[3],
const double p2[3],
double tolerance,
vtkIdList* cells)
override;
274 const double x[3],
int ijk[3],
double dist,
int prevMinLevel[3],
int prevMaxLevel[3]);
300 double OctantBounds[6];
303 if (this->OctantBounds[0] - tol <= x[0] && x[0] <= this->OctantBounds[1] + tol &&
304 this->OctantBounds[2] - tol <= x[1] && x[1] <= this->OctantBounds[3] + tol &&
305 this->OctantBounds[4] - tol <= x[2] && x[2] <= this->OctantBounds[5] + tol)
an abstract base class for locators which find cells
virtual vtkIdType FindCell(double x[3])
Returns the Id of the cell containing the point, returns -1 if no cell found.
virtual void SetNumberOfCellsPerNode(int)
Specify the preferred/maximum number of cells in each node/bucket.
virtual void FindClosestPoint(const double x[3], double closestPoint[3], vtkIdType &cellId, int &subId, double &dist2)
Return the closest point and the cell which is closest to the point x.
virtual vtkIdType FindClosestPointWithinRadius(double x[3], double radius, double closestPoint[3], vtkIdType &cellId, int &subId, double &dist2)
Return the closest point within a specified radius and the cell which is closest to the point x.
virtual int IntersectWithLine(const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)
Return intersection point (if any) of finite line with cells contained in cell locator.
object to represent cell connectivity
octree-based spatial search object to quickly locate cells
virtual vtkIdList * GetCells(int bucket)
Get the cells in a particular bucket.
void FreeSearchStructure() override
Satisfy vtkLocator abstract interface.
static vtkCellLocator * New()
Construct with automatic computation of divisions, averaging 25 cells per bucket.
~vtkCellLocator() override
double Distance2ToBounds(const double x[3], double bounds[6])
void ClearCellHasBeenVisited()
int GenerateIndex(int offset, int numDivs, int i, int j, int k, vtkIdType &idx)
int GetNumberOfCellsPerBucket()
int IntersectWithLine(const double a0[3], const double a1[3], double tol, double &t, double x[3], double pcoords[3], int &subId, vtkIdType &cellId, vtkGenericCell *cell) override
Return intersection point (if any) AND the cell which was intersected by the finite line.
vtkNeighborCells * Buckets
void GenerateRepresentation(int level, vtkPolyData *pd) override
Satisfy vtkLocator abstract interface.
unsigned char QueryNumber
virtual int GetNumberOfBuckets(void)
Return number of buckets available.
void FindCellsAlongLine(const double p1[3], const double p2[3], double tolerance, vtkIdList *cells) override
Given a finite line defined by the two points (p1,p2), return the list of unique cell ids in the buck...
virtual void BuildLocatorInternal()
Satisfy vtkLocator abstract interface.
void GetOverlappingBuckets(const double x[3], int ijk[3], double dist, int prevMinLevel[3], int prevMaxLevel[3])
void SetNumberOfCellsPerBucket(int N)
Specify the average number of cells in each octant.
void FindCellsWithinBounds(double *bbox, vtkIdList *cells) override
Return a list of unique cell ids inside of a given bounding box.
vtkIdType FindCell(double x[3], double tol2, vtkGenericCell *GenCell, double pcoords[3], double *weights) override
Find the cell containing a given point.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void GetChildren(int idx, int level, int children[8])
void MarkParents(void *, int, int, int, int, int)
double Distance2ToBucket(const double x[3], int nei[3])
void ComputeOctantBounds(int i, int j, int k)
void GenerateFace(int face, int numDivs, int i, int j, int k, vtkPoints *pts, vtkCellArray *polys)
virtual void ForceBuildLocator()
Satisfy vtkLocator abstract interface.
void ClearCellHasBeenVisited(vtkIdType id)
void GetBucketNeighbors(int ijk[3], int ndivs, int level)
vtkIdType FindClosestPointWithinRadius(double x[3], double radius, double closestPoint[3], vtkGenericCell *cell, vtkIdType &cellId, int &subId, double &dist2, int &inside) override
Return the closest point within a specified radius and the cell which is closest to the point x.
int IsInOctantBounds(const double x[3], double tol=0.0)
void BuildLocator() override
Satisfy vtkLocator abstract interface.
void FindClosestPoint(const double x[3], double closestPoint[3], vtkGenericCell *cell, vtkIdType &cellId, int &subId, double &dist2) override
Return the closest point and the cell which is closest to the point x.
virtual void BuildLocatorIfNeeded()
Satisfy vtkLocator abstract interface.
unsigned char * CellHasBeenVisited
provides thread-safe access to cells
list of point or cell ids
a simple class to control print indentation
represent and manipulate 3D points
concrete dataset represents vertices, lines, polygons, and triangle strips