/// \file

/// \ingroup tutorial_eve

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

///

/// \image html eve_text.png

/// \macro_code

///

/// \author Alja Mrak-Tadel

TEveText* text()

{

gSystem->IgnoreSignal(kSigSegmentationViolation, true);

TEveManager::Create();

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);

gEve->AddElement(t);

// TEveText does not know its bounding box before first rendering.

gEve->FullRedraw3D(kTRUE);

gEve->GetDefaultGLViewer()->ResetCurrentCamera();

gEve->GetDefaultGLViewer()->RequestDraw(TGLRnrCtx::kLODHigh);

return t;

}