VTK
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a cell that represents a parabolic n-sided polygon More...
#include <vtkQuadraticPolygon.h>
Public Types | |
typedef vtkNonLinearCell | Superclass |
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typedef vtkCell | Superclass |
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typedef vtkObject | Superclass |
Public Member Functions | |
virtual vtkTypeBool | IsA (const char *type) |
Return 1 if this class is the same type of (or a subclass of) the named class. More... | |
vtkQuadraticPolygon * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) override |
Methods invoked by print to print information about the object including superclasses. More... | |
int | GetCellType () override |
Implement the vtkCell API. More... | |
int | GetCellDimension () override |
Return the topological dimensional of the cell (0,1,2, or 3). More... | |
int | GetNumberOfEdges () override |
Return the number of edges in the cell. More... | |
int | GetNumberOfFaces () override |
Return the number of faces in the cell. More... | |
vtkCell * | GetEdge (int) override |
Return the edge cell from the edgeId of the cell. More... | |
vtkCell * | GetFace (int) override |
Return the face cell from the faceId of the cell. More... | |
int | IsPrimaryCell () override |
Return whether this cell type has a fixed topology or whether the topology varies depending on the data (e.g., vtkConvexPointSet). More... | |
int | CellBoundary (int subId, const double pcoords[3], vtkIdList *pts) override |
These methods are based on the vtkPolygon ones : the vtkQuadraticPolygon (with n edges and 2*n points) is transform into a vtkPolygon (with 2*n edges and 2*n points) and the vtkPolygon methods are called. More... | |
void | Contour (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd) override |
Generate contouring primitives. More... | |
void | Clip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override |
Cut (or clip) the cell based on the input cellScalars and the specified value. More... | |
int | EvaluatePosition (const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override |
Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; evaluate parametric coordinates, sub-cell id (!=0 only if cell is composite), distance squared of point x[3] to cell (in particular, the sub-cell indicated), closest point on cell to x[3] (unless closestPoint is null, in which case, the closest point and dist2 are not found), and interpolation weights in cell. More... | |
void | EvaluateLocation (int &subId, const double pcoords[3], double x[3], double *weights) override |
Determine global coordinate (x[3]) from subId and parametric coordinates. More... | |
int | IntersectWithLine (const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) override |
Intersect with a ray. More... | |
void | InterpolateFunctions (const double x[3], double *weights) override |
int | ParameterizePolygon (double p0[3], double p10[3], double &l10, double p20[3], double &l20, double n[3]) |
int | Triangulate (vtkIdList *outTris) |
int | Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts) override |
Generate simplices of proper dimension. More... | |
int | NonDegenerateTriangulate (vtkIdList *outTris) |
void | Derivatives (int subId, const double pcoords[3], const double *values, int dim, double *derivs) override |
Compute derivatives given cell subId and parametric coordinates. More... | |
virtual bool | GetUseMVCInterpolation () |
Set/Get the flag indicating whether to use Mean Value Coordinate for the interpolation. More... | |
virtual void | SetUseMVCInterpolation (bool) |
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vtkNonLinearCell * | NewInstance () const |
int | IsLinear () override |
Non-linear cells require special treatment (tessellation) when converting to graphics primitives (during mapping). More... | |
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vtkCell * | NewInstance () const |
void | Initialize (int npts, vtkIdType *pts, vtkPoints *p) |
Initialize cell from outside with point ids and point coordinates specified. More... | |
void | Initialize (int npts, vtkPoints *p) |
Initialize the cell with point coordinates specified. More... | |
virtual void | ShallowCopy (vtkCell *c) |
Copy this cell by reference counting the internal data structures. More... | |
virtual void | DeepCopy (vtkCell *c) |
Copy this cell by completely copying internal data structures. More... | |
virtual int | RequiresInitialization () |
Some cells require initialization prior to access. More... | |
virtual void | Initialize () |
virtual int | IsExplicitCell () |
Explicit cells require additional representational information beyond the usual cell type and connectivity list information. More... | |
virtual int | RequiresExplicitFaceRepresentation () |
Determine whether the cell requires explicit face representation, and methods for setting and getting the faces (see vtkPolyhedron for example usage of these methods). More... | |
virtual void | SetFaces (vtkIdType *vtkNotUsed(faces)) |
virtual vtkIdType * | GetFaces () |
vtkPoints * | GetPoints () |
Get the point coordinates for the cell. More... | |
vtkIdType | GetNumberOfPoints () |
Return the number of points in the cell. More... | |
vtkIdList * | GetPointIds () |
Return the list of point ids defining the cell. More... | |
vtkIdType | GetPointId (int ptId) |
For cell point i, return the actual point id. More... | |
void | GetBounds (double bounds[6]) |
Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). More... | |
double * | GetBounds () |
Compute cell bounding box (xmin,xmax,ymin,ymax,zmin,zmax). More... | |
double | GetLength2 () |
Compute Length squared of cell (i.e., bounding box diagonal squared). More... | |
virtual int | GetParametricCenter (double pcoords[3]) |
Return center of the cell in parametric coordinates. More... | |
virtual double | GetParametricDistance (const double pcoords[3]) |
Return the distance of the parametric coordinate provided to the cell. More... | |
virtual double * | GetParametricCoords ()) |
Return a contiguous array of parametric coordinates of the points defining this cell. More... | |
virtual void | InterpolateFunctions (const double vtkNotUsed(pcoords)[3], double *vtkNotUsed(weight)) |
Compute the interpolation functions/derivatives (aka shape functions/derivatives) No-ops at this level. More... | |
virtual void | InterpolateDerivs (const double vtkNotUsed(pcoords)[3], double *vtkNotUsed(derivs)) |
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vtkBaseTypeMacro (vtkObject, vtkObjectBase) | |
virtual void | DebugOn () |
Turn debugging output on. More... | |
virtual void | DebugOff () |
Turn debugging output off. More... | |
bool | GetDebug () |
Get the value of the debug flag. More... | |
void | SetDebug (bool debugFlag) |
Set the value of the debug flag. More... | |
virtual void | Modified () |
Update the modification time for this object. More... | |
virtual vtkMTimeType | GetMTime () |
Return this object's modified time. More... | |
unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
Allow people to add/remove/invoke observers (callbacks) to any VTK object. More... | |
unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
vtkCommand * | GetCommand (unsigned long tag) |
void | RemoveObserver (vtkCommand *) |
void | RemoveObservers (unsigned long event, vtkCommand *) |
void | RemoveObservers (const char *event, vtkCommand *) |
vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
void | RemoveObserver (unsigned long tag) |
void | RemoveObservers (unsigned long event) |
void | RemoveObservers (const char *event) |
void | RemoveAllObservers () |
vtkTypeBool | HasObserver (unsigned long event) |
vtkTypeBool | HasObserver (const char *event) |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More... | |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
Allow user to set the AbortFlagOn() with the return value of the callback method. More... | |
int | InvokeEvent (unsigned long event, void *callData) |
This method invokes an event and return whether the event was aborted or not. More... | |
int | InvokeEvent (const char *event, void *callData) |
int | InvokeEvent (unsigned long event) |
int | InvokeEvent (const char *event) |
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const char * | GetClassName () const |
Return the class name as a string. More... | |
virtual void | Delete () |
Delete a VTK object. More... | |
virtual void | FastDelete () |
Delete a reference to this object. More... | |
void | InitializeObjectBase () |
void | Print (ostream &os) |
Print an object to an ostream. More... | |
virtual void | PrintHeader (ostream &os, vtkIndent indent) |
virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
virtual void | Register (vtkObjectBase *o) |
Increase the reference count (mark as used by another object). More... | |
virtual void | UnRegister (vtkObjectBase *o) |
Decrease the reference count (release by another object). More... | |
int | GetReferenceCount () |
Return the current reference count of this object. More... | |
void | SetReferenceCount (int) |
Sets the reference count. More... | |
void | PrintRevisions (ostream &) |
Legacy. More... | |
Static Public Member Functions | |
static vtkQuadraticPolygon * | New () |
static vtkTypeBool | IsTypeOf (const char *type) |
static vtkQuadraticPolygon * | SafeDownCast (vtkObjectBase *o) |
static void | ComputeCentroid (vtkIdTypeArray *ids, vtkPoints *pts, double centroid[3]) |
static int | PointInPolygon (double x[3], int numPts, double *pts, double bounds[6], double n[3]) |
static double | DistanceToPolygon (double x[3], int numPts, double *pts, double bounds[6], double closest[3]) |
static int | IntersectPolygonWithPolygon (int npts, double *pts, double bounds[6], int npts2, double *pts2, double bounds2[3], double tol, double x[3]) |
static int | IntersectConvex2DCells (vtkCell *cell1, vtkCell *cell2, double tol, double p0[3], double p1[3]) |
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static vtkTypeBool | IsTypeOf (const char *type) |
static vtkNonLinearCell * | SafeDownCast (vtkObjectBase *o) |
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static vtkTypeBool | IsTypeOf (const char *type) |
static vtkCell * | SafeDownCast (vtkObjectBase *o) |
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static vtkObject * | New () |
Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More... | |
static void | BreakOnError () |
This method is called when vtkErrorMacro executes. More... | |
static void | SetGlobalWarningDisplay (int val) |
This is a global flag that controls whether any debug, warning or error messages are displayed. More... | |
static void | GlobalWarningDisplayOn () |
static void | GlobalWarningDisplayOff () |
static int | GetGlobalWarningDisplay () |
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static vtkTypeBool | IsTypeOf (const char *name) |
Return 1 if this class type is the same type of (or a subclass of) the named class. More... | |
static vtkObjectBase * | New () |
Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More... | |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
vtkQuadraticPolygon () | |
~vtkQuadraticPolygon () override | |
void | InitializePolygon () |
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vtkNonLinearCell () | |
~vtkNonLinearCell () override | |
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vtkCell () | |
~vtkCell () override | |
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vtkObject () | |
~vtkObject () override | |
void | RegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
void | UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override |
void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr) |
These methods allow a command to exclusively grab all events. More... | |
void | InternalReleaseFocus () |
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vtkObjectBase () | |
virtual | ~vtkObjectBase () |
virtual void | CollectRevisions (ostream &) |
virtual void | ReportReferences (vtkGarbageCollector *) |
vtkObjectBase (const vtkObjectBase &) | |
void | operator= (const vtkObjectBase &) |
Static Protected Member Functions | |
static void | GetPermutationFromPolygon (vtkIdType nb, vtkIdList *permutation) |
Methods to transform a vtkQuadraticPolygon variable into a vtkPolygon variable. More... | |
static void | PermuteToPolygon (vtkIdType nbPoints, double *inPoints, double *outPoints) |
static void | PermuteToPolygon (vtkCell *inCell, vtkCell *outCell) |
static void | PermuteToPolygon (vtkPoints *inPoints, vtkPoints *outPoints) |
static void | PermuteToPolygon (vtkIdTypeArray *inIds, vtkIdTypeArray *outIds) |
static void | PermuteToPolygon (vtkDataArray *inDataArray, vtkDataArray *outDataArray) |
static void | GetPermutationToPolygon (vtkIdType nb, vtkIdList *permutation) |
Methods to transform a vtkPolygon variable into a vtkQuadraticPolygon variable. More... | |
static void | PermuteFromPolygon (vtkIdType nb, double *values) |
static void | ConvertFromPolygon (vtkIdList *ids) |
Protected Attributes | |
vtkPolygon * | Polygon |
vtkQuadraticEdge * | Edge |
bool | UseMVCInterpolation |
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double | Bounds [6] |
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bool | Debug |
vtkTimeStamp | MTime |
vtkSubjectHelper * | SubjectHelper |
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vtkAtomicInt32 | ReferenceCount |
vtkWeakPointerBase ** | WeakPointers |
Additional Inherited Members | |
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vtkPoints * | Points |
vtkIdList * | PointIds |
a cell that represents a parabolic n-sided polygon
vtkQuadraticPolygon is a concrete implementation of vtkNonLinearCell to represent a 2D n-sided (2*n nodes) parabolic polygon. The polygon cannot have any internal holes, and cannot self-intersect. The cell includes a mid-edge node for each of the n edges of the cell. The ordering of the 2*n points defining the cell are point ids (0..n-1 and n..2*n-1) where ids 0..n-1 define the corner vertices of the polygon; ids n..2*n-1 define the midedge nodes. Define the polygon with points ordered in the counter- clockwise direction; do not repeat the last point.
Definition at line 46 of file vtkQuadraticPolygon.h.
Definition at line 50 of file vtkQuadraticPolygon.h.
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Return 1 if this class is the same type of (or a subclass of) the named class.
Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.
Reimplemented from vtkNonLinearCell.
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Reimplemented from vtkNonLinearCell.
vtkQuadraticPolygon* vtkQuadraticPolygon::NewInstance | ( | ) | const |
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Methods invoked by print to print information about the object including superclasses.
Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from vtkNonLinearCell.
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Implement the vtkCell API.
See the vtkCell API for descriptions of these methods.
Implements vtkCell.
Definition at line 57 of file vtkQuadraticPolygon.h.
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Return the topological dimensional of the cell (0,1,2, or 3).
Implements vtkCell.
Definition at line 58 of file vtkQuadraticPolygon.h.
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Return the number of edges in the cell.
Implements vtkCell.
Definition at line 59 of file vtkQuadraticPolygon.h.
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Return the number of faces in the cell.
Implements vtkCell.
Definition at line 60 of file vtkQuadraticPolygon.h.
Return the edge cell from the edgeId of the cell.
Implements vtkCell.
Return the face cell from the faceId of the cell.
Implements vtkCell.
Definition at line 62 of file vtkQuadraticPolygon.h.
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Return whether this cell type has a fixed topology or whether the topology varies depending on the data (e.g., vtkConvexPointSet).
This compares to composite cells that are typically composed of primary cells (e.g., a triangle strip composite cell is made up of triangle primary cells).
Reimplemented from vtkCell.
Definition at line 63 of file vtkQuadraticPolygon.h.
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These methods are based on the vtkPolygon ones : the vtkQuadraticPolygon (with n edges and 2*n points) is transform into a vtkPolygon (with 2*n edges and 2*n points) and the vtkPolygon methods are called.
Implements vtkCell.
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Generate contouring primitives.
The scalar list cellScalars are scalar values at each cell point. The point locator is essentially a points list that merges points as they are inserted (i.e., prevents duplicates). Contouring primitives can be vertices, lines, or polygons. It is possible to interpolate point data along the edge by providing input and output point data - if outPd is nullptr, then no interpolation is performed. Also, if the output cell data is non-nullptr, the cell data from the contoured cell is passed to the generated contouring primitives. (Note: the CopyAllocate() method must be invoked on both the output cell and point data. The cellId refers to the cell from which the cell data is copied.)
Implements vtkCell.
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Cut (or clip) the cell based on the input cellScalars and the specified value.
The output of the clip operation will be one or more cells of the same topological dimension as the original cell. The flag insideOut controls what part of the cell is considered inside - normally cell points whose scalar value is greater than "value" are considered inside. If insideOut is on, this is reversed. Also, if the output cell data is non-nullptr, the cell data from the clipped cell is passed to the generated contouring primitives. (Note: the CopyAllocate() method must be invoked on both the output cell and point data. The cellId refers to the cell from which the cell data is copied.)
Implements vtkCell.
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Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; evaluate parametric coordinates, sub-cell id (!=0 only if cell is composite), distance squared of point x[3] to cell (in particular, the sub-cell indicated), closest point on cell to x[3] (unless closestPoint is null, in which case, the closest point and dist2 are not found), and interpolation weights in cell.
(The number of weights is equal to the number of points defining the cell). Note: on rare occasions a -1 is returned from the method. This means that numerical error has occurred and all data returned from this method should be ignored. Also, inside/outside is determine parametrically. That is, a point is inside if it satisfies parametric limits. This can cause problems for cells of topological dimension 2 or less, since a point in 3D can project onto the cell within parametric limits but be "far" from the cell. Thus the value dist2 may be checked to determine true in/out.
Implements vtkCell.
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Determine global coordinate (x[3]) from subId and parametric coordinates.
Also returns interpolation weights. (The number of weights is equal to the number of points in the cell.)
Implements vtkCell.
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Intersect with a ray.
Return parametric coordinates (both line and cell) and global intersection coordinates, given ray definition p1[3], p2[3] and tolerance tol. The method returns non-zero value if intersection occurs. A parametric distance t between 0 and 1 along the ray representing the intersection point, the point coordinates x[3] in data coordinates and also pcoords[3] in parametric coordinates. subId is the index within the cell if a composed cell like a triangle strip.
Implements vtkCell.
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int vtkQuadraticPolygon::ParameterizePolygon | ( | double | p0[3], |
double | p10[3], | ||
double & | l10, | ||
double | p20[3], | ||
double & | l20, | ||
double | n[3] | ||
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Generate simplices of proper dimension.
If cell is 3D, tetrahedron are generated; if 2D triangles; if 1D lines; if 0D points. The form of the output is a sequence of points, each n+1 points (where n is topological cell dimension) defining a simplex. The index is a parameter that controls which triangulation to use (if more than one is possible). If numerical degeneracy encountered, 0 is returned, otherwise 1 is returned. This method does not insert new points: all the points that define the simplices are the points that define the cell.
Implements vtkCell.
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Compute derivatives given cell subId and parametric coordinates.
The values array is a series of data value(s) at the cell points. There is a one-to-one correspondence between cell point and data value(s). Dim is the number of data values per cell point. Derivs are derivatives in the x-y-z coordinate directions for each data value. Thus, if computing derivatives for a scalar function in a hexahedron, dim=1, 8 values are supplied, and 3 deriv values are returned (i.e., derivatives in x-y-z directions). On the other hand, if computing derivatives of velocity (vx,vy,vz) dim=3, 24 values are supplied ((vx,vy,vz)1, (vx,vy,vz)2, ....()8), and 9 deriv values are returned ((d(vx)/dx),(d(vx)/dy),(d(vx)/dz), (d(vy)/dx),(d(vy)/dy), (d(vy)/dz), (d(vz)/dx),(d(vz)/dy),(d(vz)/dz)).
Implements vtkCell.
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Set/Get the flag indicating whether to use Mean Value Coordinate for the interpolation.
If true, InterpolateFunctions() uses the Mean Value Coordinate to compute weights. Otherwise, the conventional 1/r^2 method is used. The UseMVCInterpolation parameter is set to true by default.
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Methods to transform a vtkQuadraticPolygon variable into a vtkPolygon variable.
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Methods to transform a vtkPolygon variable into a vtkQuadraticPolygon variable.
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Definition at line 130 of file vtkQuadraticPolygon.h.
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Definition at line 131 of file vtkQuadraticPolygon.h.
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Definition at line 135 of file vtkQuadraticPolygon.h.