Gaussian ellipsoid component of the vertex function. More...
#include <gaussellipsoid.h>
Public Member Functions | |
| GaussEllipsoid (InteractionPoint *IP) | |
| Construct from an interaction point. More... | |
| double | valueAt (const Vector3 &Point) const |
| Calculate the value of the ellipsoid at a point. More... | |
| InteractionPoint * | ip () |
| InteractionPoint object used. More... | |
| GaussEllipsoid (InteractionPoint *IP) | |
| Construct from an interaction point. More... | |
| double | valueAt (const Vector3 &Point) const |
| Calculate the value of the ellipsoid at a point. More... | |
| InteractionPoint * | ip () |
| InteractionPoint object used. More... | |
Detailed Description
Gaussian ellipsoid component of the vertex function.
Gaussian Ellipsoid in detector space (usually representing IP) The ellipsoid position and size are determined by the position and covariance matrix of a given InteractionPoint by:
![\[ V(\mathbf{r})=e^{-0.5rV^{-1}r^{T}} \]](form_37.png)
where r is the vector from ip position to query point and V is the covariance matrix. (Both in x,y,z space)
Note this is a deliberatly unnormalised gaussian.
The interaction point is not modified at any point by this class
- Version
- 0.1
- Date
- 20/09/05
Definition at line 34 of file include/vertex_lcfi/zvtop/include/gaussellipsoid.h.
Constructor & Destructor Documentation
| vertex_lcfi::ZVTOP::GaussEllipsoid::GaussEllipsoid | ( | InteractionPoint * | IP | ) |
Construct from an interaction point.
- Parameters
-
IP Pointer to InteractionPoint to use
Definition at line 7 of file gaussellipsoid.cpp.
| vertex_lcfi::ZVTOP::GaussEllipsoid::GaussEllipsoid | ( | InteractionPoint * | IP | ) |
Construct from an interaction point.
- Parameters
-
IP Pointer to InteractionPoint to use
Member Function Documentation
| InteractionPoint * vertex_lcfi::ZVTOP::GaussEllipsoid::ip | ( | ) |
InteractionPoint object used.
- Returns
- Pointer to InteractionPoint used by this instance
Definition at line 23 of file gaussellipsoid.cpp.
Referenced by vertex_lcfi::ZVTOP::VertexFunctionClassic::valueAt().
| InteractionPoint* vertex_lcfi::ZVTOP::GaussEllipsoid::ip | ( | ) |
InteractionPoint object used.
- Returns
- Pointer to InteractionPoint used by this instance
|
virtual |
Calculate the value of the ellipsoid at a point.
- Parameters
-
Point Vector3 of the spatial point
- Returns
- Value of ellipsoid at point.
Implements vertex_lcfi::ZVTOP::VertexFunctionElement.
|
virtual |
Calculate the value of the ellipsoid at a point.
- Parameters
-
Point Vector3 of the spatial point
- Returns
- Value of ellipsoid at point.
Implements vertex_lcfi::ZVTOP::VertexFunctionElement.
Definition at line 13 of file gaussellipsoid.cpp.
References vertex_lcfi::ZVTOP::InteractionPoint::inverseErrorMatrix(), and vertex_lcfi::ZVTOP::InteractionPoint::position().
Referenced by vertex_lcfi::ZVTOP::VertexFunctionClassic::valueAt().
The documentation for this class was generated from the following files:
