ROOT
6.18/05
Reference Guide
graf3d
gl
src
TGLQuadric.cxx
Go to the documentation of this file.
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// @(#)root/gl:$Id$
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/*************************************************************************
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* Copyright (C) 1995-2005, Rene Brun and Fons Rademakers. *
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* All rights reserved. *
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* *
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* For the licensing terms see $ROOTSYS/LICENSE. *
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* For the list of contributors see $ROOTSYS/README/CREDITS. *
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*************************************************************************/
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#include "
TGLQuadric.h
"
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#include "
TGLIncludes.h
"
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#include "
TError.h
"
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/** \class TGLQuadric
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\ingroup opengl
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Wrapper class for GLU quadric shape drawing object. Lazy creation of
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internal GLU raw quadric on first call to TGLQuadric::Get()
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*/
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ClassImp
(
TGLQuadric
);
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////////////////////////////////////////////////////////////////////////////////
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/// Construct quadric
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TGLQuadric::TGLQuadric
() :
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fQuad(0)
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{
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Destroy quadric
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TGLQuadric::~TGLQuadric
()
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{
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if
(
fQuad
) {
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gluDeleteQuadric(
fQuad
);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// Get the internal raw GLU quadric object. Created on first call.
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GLUquadric *
TGLQuadric::Get
()
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{
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if
(!
fQuad
) {
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fQuad
= gluNewQuadric();
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if
(!
fQuad
) {
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Error
(
"TGLQuadric::Get"
,
"create failed"
);
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}
else
{
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gluQuadricOrientation(
fQuad
, (GLenum)GLU_OUTSIDE);
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gluQuadricNormals(
fQuad
, (GLenum)GLU_SMOOTH);
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}
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}
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return
fQuad
;
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}
ClassImp
#define ClassImp(name)
Definition:
Rtypes.h:365
TError.h
Error
void Error(const char *location, const char *msgfmt,...)
TGLIncludes.h
TGLQuadric.h
TGLQuadric
Wrapper class for GLU quadric shape drawing object.
Definition:
TGLQuadric.h:28
TGLQuadric::TGLQuadric
TGLQuadric()
Construct quadric.
Definition:
TGLQuadric.cxx:26
TGLQuadric::Get
GLUquadric * Get()
Get the internal raw GLU quadric object. Created on first call.
Definition:
TGLQuadric.cxx:44
TGLQuadric::~TGLQuadric
virtual ~TGLQuadric()
Destroy quadric.
Definition:
TGLQuadric.cxx:34
TGLQuadric::fQuad
GLUquadric * fQuad
Definition:
TGLQuadric.h:30