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text.C File Reference

Detailed Description

Demonstrates usage of class TEveText - 2D & 3D text in GL.

{
auto marker = new TEvePointSet(8);
marker->SetName("Origin marker");
marker->SetMarkerColor(6);
marker->SetMarkerStyle(3);
Float_t a = 10;
marker->SetPoint(0, a, +a, +a);
marker->SetPoint(1, a, -a, +a);
marker->SetPoint(2, -a, -a, +a);
marker->SetPoint(3, -a, +a, +a);
marker->SetPoint(4, +a, +a, -a);
marker->SetPoint(5, +a, -a, -a);
marker->SetPoint(6, -a, +a, -a);
marker->SetPoint(7, -a, -a, -a);
gEve->AddElement(marker);
auto t = new TEveText("DADA");
t->PtrMainTrans()->RotateLF(1, 3, TMath::PiOver2());
t->SetMainColor(kOrange-2);
t->SetFontSize(64);
t->SetFontMode(TGLFont::kExtrude);
t->SetLighting(kTRUE);
// TEveText does not know its bounding box before first rendering.
return t;
}
float Float_t
Definition: RtypesCore.h:55
const Bool_t kTRUE
Definition: RtypesCore.h:89
@ kOrange
Definition: Rtypes.h:65
R__EXTERN TEveManager * gEve
Definition: TEveManager.h:243
@ kSigSegmentationViolation
R__EXTERN TSystem * gSystem
Definition: TSystem.h:556
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...
Definition: TEvePointSet.h:36
TEveElement class used for displaying FreeType GL fonts.
Definition: TEveText.h:25
@ kLODHigh
Definition: TGLRnrCtx.h:67
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...
Definition: TGLViewer.cxx:438
void ResetCurrentCamera()
Resets position/rotation of current camera to default values.
Definition: TGLViewer.cxx:358
virtual void IgnoreSignal(ESignals sig, Bool_t ignore=kTRUE)
If ignore is true ignore the specified signal, else restore previous behaviour.
Definition: TSystem.cxx:591
TText * text
constexpr Double_t PiOver2()
Definition: TMath.h:52
auto * a
Definition: textangle.C:12
Author
Alja Mrak-Tadel

Definition in file text.C.