EventDisplay Class Reference

Event display designed to run with Genfit. More...

#include <EventDisplay.h>

Inheritance diagram for EventDisplay:

Collaboration diagram for EventDisplay:

Public Member Functions
void	reset ()
	Drop all events.
void	addEvent (std::vector< genfit::Track * > &tracks)
	Add new event. More...
void	addEvent (std::vector< const genfit::Track * > &tracks)
void	addEvent (const Track *tr)
	Add new event. More...
void	next (unsigned int stp=1)
	Go to the next event or step a certain number of events ahead.
void	prev (unsigned int stp=1)
	Go to the previous event or step a certain number of events back.
void	gotoEvent (unsigned int id)
	Go to event with index id.
int	getNEvents ()
	Get the total number of events stored.
void	setOptions (std::string opts)
	Set the display options. More...
void	setErrScale (double errScale=1.)
	Set the scaling factor for the visualization of the errors.
double	getErrScale ()
	Get the error scaling factor.
void	open ()
	Open the event display.
void	guiGoto ()
void	guiGoto2 ()
void	guiSetDrawParams ()
void	guiSelectFitterId (int val)
void	guiSelectMmHandling (int val)

Static Public Member Functions
static EventDisplay *	getInstance ()

Private Member Functions
void	makeGui ()
	Build the buttons for event navigation.
void	drawEvent (unsigned int id, bool resetCam=true)
	Draw an event.
TEveBox *	boxCreator (TVector3 o, TVector3 u, TVector3 v, float ud, float vd, float depth)
	Create a box around o, oriented along u and v with widths ud, vd and depth and return a pointer to the box object.
void	makeLines (const StateOnPlane *prevState, const StateOnPlane *state, const AbsTrackRep *rep, const Color_t &color, const Style_t &style, bool drawMarkers, bool drawErrors, double lineWidth=2, int markerPos=1)

Private Attributes
unsigned int	eventId_
double	errorScale_
std::vector< std::vector< genfit::Track * > * >	events_
TGNumberEntry *	guiEvent
TGNumberEntry *	guiEvent2
TGCheckButton *	guiDrawGeometry_
bool	drawGeometry_
TGCheckButton *	guiDrawDetectors_
bool	drawDetectors_
TGCheckButton *	guiDrawHits_
bool	drawHits_
TGCheckButton *	guiDrawErrors_
bool	drawErrors_
TGCheckButton *	guiDrawPlanes_
bool	drawPlanes_
TGCheckButton *	guiDrawTrackMarkers_
bool	drawTrackMarkers_
TGCheckButton *	guiDrawTrack_
bool	drawTrack_
TGCheckButton *	guiDrawRefTrack_
bool	drawRefTrack_
TGCheckButton *	guiDrawForward_
bool	drawForward_
TGCheckButton *	guiDrawBackward_
bool	drawBackward_
TGCheckButton *	guiDrawAutoScale_
bool	drawAutoScale_
TGCheckButton *	guiDrawScaleMan_
bool	drawScaleMan_
TGNumberEntry *	guiErrorScale_
bool	drawSilent_
TGCheckButton *	guiDrawCardinalRep_
bool	drawCardinalRep_
TGNumberEntry *	guiRepId_
unsigned int	repId_
TGCheckButton *	guiDrawAllTracks_
bool	drawAllTracks_
TGNumberEntry *	guiTrackId_
unsigned int	trackId_
TGCheckButton *	guiRefit_
bool	refit_
TGNumberEntry *	guiDebugLvl_
unsigned int	debugLvl_
TGButtonGroup *	guiFitterId_
eFitterType	fitterId_
TGButtonGroup *	guiMmHandling_
eMultipleMeasurementHandling	mmHandling_
TGCheckButton *	guiSquareRootFormalism_
bool	squareRootFormalism_
TGNumberEntry *	guiDPVal_
double	dPVal_
TGNumberEntry *	guiRelChi2_
double	dRelChi2_
TGNumberEntry *	guiDChi2Ref_
double	dChi2Ref_
TGNumberEntry *	guiNMinIter_
unsigned int	nMinIter_
TGNumberEntry *	guiNMaxIter_
unsigned int	nMaxIter_
TGNumberEntry *	guiNMaxFailed_
int	nMaxFailed_
TGCheckButton *	guiResort_
bool	resort_

Static Private Attributes
static EventDisplay *	eventDisplay_ = nullptr

Detailed Description

Event display designed to run with Genfit.

Author

Karl Bicker (Technische Universität München, original author)

The EventDisplay class is a singelton used to visualize the events processed with Genfit. The event display uses the EVE event visualization package to visualize Tracks which are bundled in a vector and which form one event. The information about the tracks is supplied in Track objects. To use the event display, the geometry (TGeoManager)and magnetic field (FieldManager) have to be initialized and gApplication and gEve have to exist.

Definition at line 59 of file EventDisplay.h.

Member Function Documentation

addEvent() [1/2]

void addEvent

(

const Track *

tr

)

Add new event.

Add a new event consisting of one track.

Definition at line 188 of file EventDisplay.cc.

                                           {
 
  std::vector<Track*>* vec = new std::vector<Track*>;
  vec->push_back(new Track(*tr));
  events_.push_back(vec);
}

addEvent() [2/2]

void addEvent

(

std::vector< genfit::Track * > &

tracks

)

Add new event.

Add a new event. An event is a collection of Tracks which are displayed at the the same time. The tracks are copied.

Definition at line 164 of file EventDisplay.cc.

setOptions()

void setOptions

(

std::string

opts

)

Set the display options.

The option string lets you steer the way the events are displayed. The following options are available:

'A': Autoscale errors. The representation of hits are scaled with the error found their covariance matrix. This can lead to hits not being displayed beause the errors are too small. Autoscaling ensures that the errors are scaled up sufficiently to ensure all hits are displayed. However, this can lead to unwanted results if there are only a few hits with very small errors, as all hits are scaled by the same factor to ensure consistency.

'B': Draw Backward Fit (track segments start at updates and end at predictions)

'D': Draw detectors. This causes a simple representation for all detectors to be drawn. For planar detectors, this is a plane with the same position and orientation of the real detector plane, but with different size. For wires, this is a tube whose diameter is equal to the value measured by the wire. Spacepoint hits are not affected by this option.

'E': Draw Error cones (position and direction uncertainties) around the track.

'F': Draw Forward Fit (track segments start at updates and end at predictions) 'H': Draw hits. This causes the hits to be visualized. Normally, the size of the hit representation is connected to the covariance matrix of the hit, scaled by the value set in setErrScale which is normally 1. See also option 'A' and 'S'. Normally used in connection with 'D'.

'G': Draw geometry. Draw also the geometry in the gGeoManager. This feature is experimental and may lead to strang things being drawn.

'M': Draw track markers. Draw the intersection points between the track and the virtual (and/or real) detector planes. Can only be used in connection with 'T'.

'P': Draw detector planes. Draws the virtual (and/or real) detector planes.

'S': Scale manually. This leads to the spacepoint hits (and only them up to now!) being drawn as spheres with radius 0.5 scaled with the error scale factor. Can be used if the scaling with errors leads to problems.

'T': Draw Track. Draw the track as lines between the virtual (and/or real) detector planes.

'X': Draw silent. Does not run the TApplication.

Definition at line 112 of file EventDisplay.cc.

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

• genfit2/code2/eventDisplay/include/EventDisplay.h
• genfit2/code2/eventDisplay/src/EventDisplay.cc