VTK
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a cell that represents a triangle More...
#include <vtkTriangle.h>
Public Types | |
typedef vtkCell | Superclass |
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typedef vtkObject | Superclass |
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typedef vtkObjectBase | Superclass |
Public Member Functions | |
virtual int | IsA (const char *type) |
vtkTriangle * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
vtkCell * | GetEdge (int edgeId) |
double | ComputeArea () |
int * | GetEdgeArray (int edgeId) |
int | GetParametricCenter (double pcoords[3]) |
double | GetParametricDistance (double pcoords[3]) |
int | GetCellType () |
int | GetCellDimension () |
int | GetNumberOfEdges () |
int | GetNumberOfFaces () |
vtkCell * | GetFace (int) |
int | CellBoundary (int subId, double pcoords[3], vtkIdList *pts) |
void | Contour (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd) |
int | EvaluatePosition (double x[3], double *closestPoint, int &subId, double pcoords[3], double &dist2, double *weights) |
void | EvaluateLocation (int &subId, double pcoords[3], double x[3], double *weights) |
int | Triangulate (int index, vtkIdList *ptIds, vtkPoints *pts) |
void | Derivatives (int subId, double pcoords[3], double *values, int dim, double *derivs) |
virtual double * | GetParametricCoords () |
void | Clip (double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) |
virtual void | InterpolateFunctions (double pcoords[3], double sf[3]) |
virtual void | InterpolateDerivs (double pcoords[3], double derivs[6]) |
int | IntersectWithLine (double p1[3], double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) |
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vtkCell * | NewInstance () const |
void | Initialize (int npts, vtkIdType *pts, vtkPoints *p) |
virtual void | ShallowCopy (vtkCell *c) |
virtual void | DeepCopy (vtkCell *c) |
virtual int | IsLinear () |
virtual int | IsExplicitCell () |
vtkPoints * | GetPoints () |
vtkIdType | GetNumberOfPoints () |
vtkIdList * | GetPointIds () |
vtkIdType | GetPointId (int ptId) |
void | GetBounds (double bounds[6]) |
double * | GetBounds () |
double | GetLength2 () |
virtual int | IsPrimaryCell () |
virtual int | RequiresInitialization () |
virtual void | Initialize () |
virtual int | RequiresExplicitFaceRepresentation () |
virtual void | SetFaces (vtkIdType *vtkNotUsed(faces)) |
virtual vtkIdType * | GetFaces () |
virtual void | InterpolateDerivs (double pcoords[3], double derivs[3]) |
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vtkObject * | NewInstance () const |
virtual void | DebugOn () |
virtual void | DebugOff () |
unsigned char | GetDebug () |
void | SetDebug (unsigned char debugFlag) |
virtual void | Modified () |
virtual unsigned long | GetMTime () |
unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
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 *) |
int | HasObserver (unsigned long event, vtkCommand *) |
int | HasObserver (const char *event, vtkCommand *) |
void | RemoveObserver (unsigned long tag) |
void | RemoveObservers (unsigned long event) |
void | RemoveObservers (const char *event) |
void | RemoveAllObservers () |
int | HasObserver (unsigned long event) |
int | HasObserver (const char *event) |
template<class U , class T > | |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
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) |
int | InvokeEvent (unsigned long event, void *callData) |
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 |
virtual void | Delete () |
virtual void | FastDelete () |
void | Print (ostream &os) |
virtual void | Register (vtkObjectBase *o) |
virtual void | UnRegister (vtkObjectBase *o) |
void | SetReferenceCount (int) |
void | PrintRevisions (ostream &) |
virtual void | PrintHeader (ostream &os, vtkIndent indent) |
virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
int | GetReferenceCount () |
Static Public Member Functions | |
static vtkTriangle * | New () |
static int | IsTypeOf (const char *type) |
static vtkTriangle * | SafeDownCast (vtkObjectBase *o) |
static void | InterpolationFunctions (double pcoords[3], double sf[3]) |
static void | InterpolationDerivs (double pcoords[3], double derivs[6]) |
static double | TriangleArea (double p1[3], double p2[3], double p3[3]) |
static void | ComputeNormal (double v1[3], double v2[3], double v3[3], double n[3]) |
static void | TriangleCenter (double p1[3], double p2[3], double p3[3], double center[3]) |
static double | Circumcircle (double p1[2], double p2[2], double p3[2], double center[2]) |
static int | BarycentricCoords (double x[2], double x1[2], double x2[2], double x3[2], double bcoords[3]) |
static int | ProjectTo2D (double x1[3], double x2[3], double x3[3], double v1[2], double v2[2], double v3[2]) |
static void | ComputeNormal (vtkPoints *p, int numPts, vtkIdType *pts, double n[3]) |
static void | ComputeNormalDirection (double v1[3], double v2[3], double v3[3], double n[3]) |
static int | PointInTriangle (double x[3], double x1[3], double x2[3], double x3[3], double tol2) |
static void | ComputeQuadric (double x1[3], double x2[3], double x3[3], double quadric[4][4]) |
static void | ComputeQuadric (double x1[3], double x2[3], double x3[3], vtkQuadric *quadric) |
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static int | IsTypeOf (const char *type) |
static vtkCell * | SafeDownCast (vtkObjectBase *o) |
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static int | IsTypeOf (const char *type) |
static vtkObject * | SafeDownCast (vtkObjectBase *o) |
static vtkObject * | New () |
static void | BreakOnError () |
static void | SetGlobalWarningDisplay (int val) |
static void | GlobalWarningDisplayOn () |
static void | GlobalWarningDisplayOff () |
static int | GetGlobalWarningDisplay () |
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static int | IsTypeOf (const char *name) |
static vtkObjectBase * | New () |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
vtkTriangle () | |
~vtkTriangle () | |
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vtkCell () | |
~vtkCell () | |
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vtkObject () | |
virtual | ~vtkObject () |
virtual void | RegisterInternal (vtkObjectBase *, int check) |
virtual void | UnRegisterInternal (vtkObjectBase *, int check) |
void | InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=NULL) |
void | InternalReleaseFocus () |
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vtkObjectBase () | |
virtual | ~vtkObjectBase () |
virtual void | CollectRevisions (ostream &) |
virtual void | ReportReferences (vtkGarbageCollector *) |
vtkObjectBase (const vtkObjectBase &) | |
void | operator= (const vtkObjectBase &) |
Protected Attributes | |
vtkLine * | Line |
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double | Bounds [6] |
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unsigned char | Debug |
vtkTimeStamp | MTime |
vtkSubjectHelper * | SubjectHelper |
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vtkAtomicInt< vtkTypeInt32 > | ReferenceCount |
vtkWeakPointerBase ** | WeakPointers |
Additional Inherited Members | |
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vtkPoints * | Points |
vtkIdList * | PointIds |
a cell that represents a triangle
vtkTriangle is a concrete implementation of vtkCell to represent a triangle located in 3-space.
Definition at line 40 of file vtkTriangle.h.
typedef vtkCell vtkTriangle::Superclass |
Definition at line 44 of file vtkTriangle.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 vtkCell.
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Reimplemented from vtkCell.
vtkTriangle* vtkTriangle::NewInstance | ( | ) | const |
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Get the edge specified by edgeId (range 0 to 2) and return that edge's coordinates.
Implements vtkCell.
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See the vtkCell API for descriptions of these methods.
Implements vtkCell.
Definition at line 53 of file vtkTriangle.h.
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See the vtkCell API for descriptions of these methods.
Implements vtkCell.
Definition at line 54 of file vtkTriangle.h.
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See the vtkCell API for descriptions of these methods.
Implements vtkCell.
Definition at line 55 of file vtkTriangle.h.
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See the vtkCell API for descriptions of these methods.
Implements vtkCell.
Definition at line 56 of file vtkTriangle.h.
See the vtkCell API for descriptions of these methods.
Implements vtkCell.
Definition at line 57 of file vtkTriangle.h.
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double vtkTriangle::ComputeArea | ( | ) |
A convenience function to compute the area of a vtkTriangle.
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Clip this triangle using scalar value provided. Like contouring, except that it cuts the triangle to produce other triangles.
Implements vtkCell.
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
Reimplemented from vtkCell.
Definition at line 96 of file vtkTriangle.h.
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
Definition at line 100 of file vtkTriangle.h.
Return the ids of the vertices defining edge (edgeId
). Ids are related to the cell, not to the dataset.
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Plane intersection plus in/out test on triangle. The in/out test is performed using tol as the tolerance.
Implements vtkCell.
Return the center of the triangle in parametric coordinates.
Reimplemented from vtkCell.
Definition at line 218 of file vtkTriangle.h.
Return the distance of the parametric coordinate provided to the cell. If inside the cell, a distance of zero is returned.
Reimplemented from vtkCell.
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Compute the center of the triangle.
Definition at line 256 of file vtkTriangle.h.
Compute the area of a triangle in 3D. See also vtkTriangle::ComputeArea()
Definition at line 265 of file vtkTriangle.h.
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Compute the circumcenter (center[3]) and radius squared (method return value) of a triangle defined by the three points x1, x2, and x3. (Note that the coordinates are 2D. 3D points can be used but the z-component will be ignored.)
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Given a 2D point x[2], determine the barycentric coordinates of the point. Barycentric coordinates are a natural coordinate system for simplices that express a position as a linear combination of the vertices. For a triangle, there are three barycentric coordinates (because there are three vertices), and the sum of the coordinates must equal 1. If a point x is inside a simplex, then all three coordinates will be strictly positive. If two coordinates are zero (so the third =1), then the point x is on a vertex. If one coordinates are zero, the point x is on an edge. In this method, you must specify the vertex coordinates x1->x3. Returns 0 if triangle is degenerate.
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Project triangle defined in 3D to 2D coordinates. Returns 0 if degenerate triangle; non-zero value otherwise. Input points are x1->x3; output 2D points are v1->v3.
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Compute the triangle normal from a points list, and a list of point ids that index into the points list.
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Compute the triangle normal from three points.
Definition at line 240 of file vtkTriangle.h.
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Compute the (unnormalized) triangle normal direction from three points.
Definition at line 225 of file vtkTriangle.h.
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Given a point x, determine whether it is inside (within the tolerance squared, tol2) the triangle defined by the three coordinate values p1, p2, p3. Method is via comparing dot products. (Note: in current implementation the tolerance only works in the neighborhood of the three vertices of the triangle.
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Calculate the error quadric for this triangle. Return the quadric as a 4x4 matrix or a vtkQuadric. (from Peter Lindstrom's Siggraph 2000 paper, "Out-of-Core Simplification of Large Polygonal Models")
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Calculate the error quadric for this triangle. Return the quadric as a 4x4 matrix or a vtkQuadric. (from Peter Lindstrom's Siggraph 2000 paper, "Out-of-Core Simplification of Large Polygonal Models")
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Definition at line 210 of file vtkTriangle.h.