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1/// \file
2/// \ingroup tutorial_eve
3/// Demonstrates usage of class TEveText - 2D & 3D text in GL.
5/// \image html eve_text.png
6/// \macro_code
8/// \author Alja Mrak-Tadel
16 auto marker = new TEvePointSet(8);
17 marker->SetName("Origin marker");
18 marker->SetMarkerColor(6);
19 marker->SetMarkerStyle(3);
20 Float_t a = 10;
21 marker->SetPoint(0, a, +a, +a);
22 marker->SetPoint(1, a, -a, +a);
23 marker->SetPoint(2, -a, -a, +a);
24 marker->SetPoint(3, -a, +a, +a);
25 marker->SetPoint(4, +a, +a, -a);
26 marker->SetPoint(5, +a, -a, -a);
27 marker->SetPoint(6, -a, +a, -a);
28 marker->SetPoint(7, -a, -a, -a);
29 gEve->AddElement(marker);
31 auto t = new TEveText("DADA");
32 t->PtrMainTrans()->RotateLF(1, 3, TMath::PiOver2());
33 t->SetMainColor(kOrange-2);
34 t->SetFontSize(64);
35 t->SetFontMode(TGLFont::kExtrude);
36 t->SetLighting(kTRUE);
37 gEve->AddElement(t);
39 // TEveText does not know its bounding box before first rendering.
44 return t;
#define a(i)
Definition RSha256.hxx:99
float Float_t
Definition RtypesCore.h:57
const Bool_t kTRUE
Definition RtypesCore.h:91
@ kOrange
Definition Rtypes.h:67
R__EXTERN TEveManager * gEve
@ kSigSegmentationViolation
R__EXTERN TSystem * gSystem
Definition TSystem.h:559
void AddElement(TEveElement *element, TEveElement *parent=0)
Add an element.
TGLViewer * GetDefaultGLViewer() const
Get TGLViewer of the default TEveViewer.
static TEveManager * Create(Bool_t map_window=kTRUE, Option_t *opt="FIV")
If global TEveManager* gEve is not set initialize it.
void FullRedraw3D(Bool_t resetCameras=kFALSE, Bool_t dropLogicals=kFALSE)
Perform 3D redraw of all scenes and viewers.
TEvePointSet is a render-element holding a collection of 3D points with optional per-point TRef and a...
TEveElement class used for displaying FreeType GL fonts.
Definition TEveText.h:25
void RequestDraw(Short_t LOD=TGLRnrCtx::kLODMed)
Post request for redraw of viewer at level of detail 'LOD' Request is directed via cross thread gVirt...
void ResetCurrentCamera()
Resets position/rotation of current camera to default values.
virtual void IgnoreSignal(ESignals sig, Bool_t ignore=kTRUE)
If ignore is true ignore the specified signal, else restore previous behaviour.
Definition TSystem.cxx:594
TText * text
constexpr Double_t PiOver2()
Definition TMath.h:51