Open CASCADE Technology  7.7.0.dev
Public Member Functions

GProp_PEquation Class Reference

A framework to analyze a collection - or cloud. More...

#include <GProp_PEquation.hxx>

Public Member Functions

 GProp_PEquation (const TColgp_Array1OfPnt &Pnts, const Standard_Real Tol)
 Constructs a framework to analyze the collection of points Pnts and computes: More...
 
Standard_Boolean IsPlanar () const
 Returns true if, according to the given tolerance, the points analyzed by this framework are coplanar. Use the function Plane to access the computed result. More...
 
Standard_Boolean IsLinear () const
 Returns true if, according to the given tolerance, the points analyzed by this framework are colinear. Use the function Line to access the computed result. More...
 
Standard_Boolean IsPoint () const
 Returns true if, according to the given tolerance, the points analyzed by this framework are coincident. Use the function Point to access the computed result. More...
 
Standard_Boolean IsSpace () const
 Returns true if, according to the given tolerance value, the points analyzed by this framework are neither coincident, nor collinear, nor coplanar. Use the function Box to query the smallest box that includes the collection of points. More...
 
gp_Pln Plane () const
 Returns the mean plane passing near all the points analyzed by this framework if, according to the given precision, the points are considered to be coplanar. Exceptions Standard_NoSuchObject if, according to the given precision value, the points analyzed by this framework are considered to be: More...
 
gp_Lin Line () const
 Returns the mean line passing near all the points analyzed by this framework if, according to the given precision value, the points are considered to be collinear. Exceptions Standard_NoSuchObject if, according to the given precision, the points analyzed by this framework are considered to be: More...
 
gp_Pnt Point () const
 Returns the mean point of all the points analyzed by this framework if, according to the given precision, the points are considered to be coincident. Exceptions Standard_NoSuchObject if, according to the given precision, the points analyzed by this framework are not considered to be coincident. More...
 
void Box (gp_Pnt &P, gp_Vec &V1, gp_Vec &V2, gp_Vec &V3) const
 Returns the definition of the smallest box which contains all the points analyzed by this framework if, according to the given precision value, the points are considered to be neither coincident, nor collinear and nor coplanar. This box is centered on the barycenter P of the collection of points. Its sides are parallel to the three vectors V1, V2 and V3, the length of which is the length of the box in the corresponding direction. Note: Vectors V1, V2 and V3 are parallel to the three axes of principal inertia of the system composed of the collection of points where each point is of equal mass. Exceptions Standard_NoSuchObject if, according to the given precision, the points analyzed by this framework are considered to be coincident, collinear or coplanar. More...
 

Detailed Description

A framework to analyze a collection - or cloud.

Constructor & Destructor Documentation

◆ GProp_PEquation()

GProp_PEquation::GProp_PEquation ( const TColgp_Array1OfPnt Pnts,
const Standard_Real  Tol 
)

Constructs a framework to analyze the collection of points Pnts and computes:

  • the mean point if the points in question are considered to be coincident within the precision Tol, or
  • the mean line if they are considered to be collinear within the precision Tol, or
  • the mean plane if they are considered to be coplanar within the precision Tol, or
  • the minimal box which contains all the points. Use :
  • the functions IsPoint, IsLinear, IsPlanar and IsSpace to find the result of the analysis, and
  • the function Point, Line, Plane or Box to access the computed result.

Member Function Documentation

◆ Box()

void GProp_PEquation::Box ( gp_Pnt P,
gp_Vec V1,
gp_Vec V2,
gp_Vec V3 
) const

Returns the definition of the smallest box which contains all the points analyzed by this framework if, according to the given precision value, the points are considered to be neither coincident, nor collinear and nor coplanar. This box is centered on the barycenter P of the collection of points. Its sides are parallel to the three vectors V1, V2 and V3, the length of which is the length of the box in the corresponding direction. Note: Vectors V1, V2 and V3 are parallel to the three axes of principal inertia of the system composed of the collection of points where each point is of equal mass. Exceptions Standard_NoSuchObject if, according to the given precision, the points analyzed by this framework are considered to be coincident, collinear or coplanar.

◆ IsLinear()

Standard_Boolean GProp_PEquation::IsLinear ( ) const

Returns true if, according to the given tolerance, the points analyzed by this framework are colinear. Use the function Line to access the computed result.

◆ IsPlanar()

Standard_Boolean GProp_PEquation::IsPlanar ( ) const

Returns true if, according to the given tolerance, the points analyzed by this framework are coplanar. Use the function Plane to access the computed result.

◆ IsPoint()

Standard_Boolean GProp_PEquation::IsPoint ( ) const

Returns true if, according to the given tolerance, the points analyzed by this framework are coincident. Use the function Point to access the computed result.

◆ IsSpace()

Standard_Boolean GProp_PEquation::IsSpace ( ) const

Returns true if, according to the given tolerance value, the points analyzed by this framework are neither coincident, nor collinear, nor coplanar. Use the function Box to query the smallest box that includes the collection of points.

◆ Line()

gp_Lin GProp_PEquation::Line ( ) const

Returns the mean line passing near all the points analyzed by this framework if, according to the given precision value, the points are considered to be collinear. Exceptions Standard_NoSuchObject if, according to the given precision, the points analyzed by this framework are considered to be:

  • coincident, or
  • not collinear.

◆ Plane()

gp_Pln GProp_PEquation::Plane ( ) const

Returns the mean plane passing near all the points analyzed by this framework if, according to the given precision, the points are considered to be coplanar. Exceptions Standard_NoSuchObject if, according to the given precision value, the points analyzed by this framework are considered to be:

  • coincident, or
  • collinear, or
  • not coplanar.

◆ Point()

gp_Pnt GProp_PEquation::Point ( ) const

Returns the mean point of all the points analyzed by this framework if, according to the given precision, the points are considered to be coincident. Exceptions Standard_NoSuchObject if, according to the given precision, the points analyzed by this framework are not considered to be coincident.


The documentation for this class was generated from the following file: