TGLUtil

static UInt_t	fgColorLockCount
static UInt_t	fgDefaultDrawQuality
static UInt_t	fgDrawQuality

GLUtesselator* GetDrawTesselator3fv()

 Returns a tesselator for direct drawing when using 3-vertices with
 single precision.

GLUtesselator* GetDrawTesselator4fv()

 Returns a tesselator for direct drawing when using 4-vertices with
 single precision.

GLUtesselator* GetDrawTesselator3dv()

 Returns a tesselator for direct drawing when using 3-vertices with
 double precision.

GLUtesselator* GetDrawTesselator4dv()

 Returns a tesselator for direct drawing when using 4-vertices with
 double precision.

UInt_t GetDrawQuality()

static: get draw quality

void SetDrawQuality(UInt_t dq)

static: set draw quality

void ResetDrawQuality()

static: reset draw quality

UInt_t GetDefaultDrawQuality()

static: get default draw quality

void SetDefaultDrawQuality(UInt_t dq)

static: set default draw quality

void CheckError(const char* loc)

 Check current GL error state, outputing details via ROOT
 Error method if one

UInt_t LockColor()

 Prevent further color changes.

UInt_t UnlockColor()

 Allow color changes.

Bool_t IsColorLocked()

static: return true if color lockcount is greater than 0

void Color(Color_t color_index, Float_t alpha = 1)

 Set color from color_index and GL-style alpha (default 1).

void ColorTransparency(Color_t color_index, UChar_t transparency = 0)

 Set color from color_index and ROOT-style transparency (default 0).

void Color3ub(UChar_t r, UChar_t g, UChar_t b)

 Wrapper for glColor3f.

void Color4ub(UChar_t r, UChar_t g, UChar_t b, UChar_t a)

 Wrapper for glColor4f.

void Color3ubv(const UChar_t* rgb)

 Wrapper for glColor3fv.

void Color4ubv(const UChar_t* rgba)

 Wrapper for glColor4fv.

void Color3f(Float_t r, Float_t g, Float_t b)

 Wrapper for glColor3f.

void Color4f(Float_t r, Float_t g, Float_t b, Float_t a)

 Wrapper for glColor4f.

void Color3fv(const Float_t* rgb)

 Wrapper for glColor3fv.

void Color4fv(const Float_t* rgba)

 Wrapper for glColor4fv.

void BeginExtendPickRegion(Float_t scale)

 Extend pick region for large point-sizes or line-widths.

void EndExtendPickRegion()

 End extension of the pick region.

void RenderPolyMarkers(const TAttMarker& marker, Float_t* p, Int_t n, Int_t pick_radius = 0, Bool_t selection = kFALSE, Bool_t sec_selection = kFALSE)

 Render polymarkers at points specified by p-array.
 Supports point and cross-like styles.

void RenderPoints(const TAttMarker& marker, Float_t* p, Int_t n, Int_t pick_radius = 0, Bool_t selection = kFALSE, Bool_t sec_selection = kFALSE)

 Render markers as circular or square points.
 Color is never changed.

void RenderCrosses(const TAttMarker& marker, Float_t* p, Int_t n, Bool_t sec_selection = kFALSE)

 Render markers as crosses.
 Color is never changed.

void RenderPolyLine(const TAttLine& al, Float_t* p, Int_t n, Int_t pick_radius = 0, Bool_t selection = kFALSE)

 Render poly-line as specified by the p-array.

void SetDrawColors(const Float_t* rgba)

 Set basic draw colors from 4 component 'rgba'
 Used by other TGLUtil drawing routines

 Sets basic (unlit) color - glColor
 and also GL materials (see OpenGL docs) thus:

 diffuse  : rgba
 ambient  : 0.0 0.0 0.0 1.0
 specular : 0.6 0.6 0.6 1.0
 emission : rgba/4.0
 shininess: 60.0

 emission is set so objects with no lights (but lighting still enabled)
 are partially visible

void DrawSphere(const TGLVertex3& position, Double_t radius, const Float_t* rgba)

 Draw sphere, centered on vertex 'position', with radius 'radius',
 color 'rgba'

void DrawLine(const TGLLine3& line, TGLUtil::ELineHeadShape head, Double_t size, const Float_t* rgba)

 Draw thick line (tube) defined by 'line', with head at end shape
 'head' - box/arrow/none, (head) size 'size', color 'rgba'

void DrawLine(const TGLVertex3& start, const TGLVector3& vector, TGLUtil::ELineHeadShape head, Double_t size, const Float_t* rgba)

 Draw thick line (tube) running from 'start', length 'vector',
 with head at end of shape 'head' - box/arrow/none,
 (head) size 'size', color 'rgba'

void DrawRing(const TGLVertex3& center, const TGLVector3& normal, Double_t radius, const Float_t* rgba)

 Draw ring, centered on 'center', lying on plane defined by 'center' & 'normal'
 of outer radius 'radius', color 'rgba'

void DrawReferenceMarker(const TGLCamera& camera, const TGLVertex3& pos, Float_t radius = 3, const Float_t* rgba = 0)

 Draw a sphere- marker on world-coordinate 'pos' with pixel
 radius 'radius'. Color argument is optional.

void DrawSimpleAxes(const TGLCamera& camera, const TGLBoundingBox& bbox, Int_t axesType)

 Draw simple xyz-axes for given bounding-box.

void DrawNumber(const TString& num, const TGLVertex3& pos, Bool_t center = kFALSE)

 Draw number in string 'num' via internal 8x8-pixel bitmap on
 vertex 'pos'. If 'center' is true, the number is centered on 'pos'.
 Only numbers, '.', '-' and ' ' are supported.

TGLUtil(const TGLUtil& )

TGLUtil& operator=(const TGLUtil& )

virtual ~TGLUtil()

{}

enum ELineHeadShape {	kLineHeadNone
	kLineHeadArrow
	kLineHeadBox
};
enum EAxesType {	kAxesNone
	kAxesEdge
	kAxesOrigin
};

class TGLUtil

Function Members (Methods)

Data Members

Class Charts

Function documentation

virtual	~TGLUtil()
static void	BeginExtendPickRegion(Float_t scale)
static void	CheckError(const char* loc)
static TClass*	Class()
static void	Color(Color_t color_index, Float_t alpha = 1)
static void	Color3f(Float_t r, Float_t g, Float_t b)
static void	Color3fv(const Float_t* rgb)
static void	Color3ub(UChar_t r, UChar_t g, UChar_t b)
static void	Color3ubv(const UChar_t* rgb)
static void	Color4f(Float_t r, Float_t g, Float_t b, Float_t a)
static void	Color4fv(const Float_t* rgba)
static void	Color4ub(UChar_t r, UChar_t g, UChar_t b, UChar_t a)
static void	Color4ubv(const UChar_t* rgba)
static void	ColorTransparency(Color_t color_index, UChar_t transparency = 0)
static void	DrawLine(const TGLLine3& line, TGLUtil::ELineHeadShape head, Double_t size, const Float_t* rgba)
static void	DrawLine(const TGLVertex3& start, const TGLVector3& vector, TGLUtil::ELineHeadShape head, Double_t size, const Float_t* rgba)
static void	DrawNumber(const TString& num, const TGLVertex3& pos, Bool_t center = kFALSE)
static void	DrawReferenceMarker(const TGLCamera& camera, const TGLVertex3& pos, Float_t radius = 3, const Float_t* rgba = 0)
static void	DrawRing(const TGLVertex3& center, const TGLVector3& normal, Double_t radius, const Float_t* rgba)
static void	DrawSimpleAxes(const TGLCamera& camera, const TGLBoundingBox& bbox, Int_t axesType)
static void	DrawSphere(const TGLVertex3& position, Double_t radius, const Float_t* rgba)
static void	EndExtendPickRegion()
static UInt_t	GetDefaultDrawQuality()
static UInt_t	GetDrawQuality()
static GLUtesselator*	GetDrawTesselator3dv()
static GLUtesselator*	GetDrawTesselator3fv()
static GLUtesselator*	GetDrawTesselator4dv()
static GLUtesselator*	GetDrawTesselator4fv()
virtual TClass*	IsA() const
static Bool_t	IsColorLocked()
static UInt_t	LockColor()
static void	RenderCrosses(const TAttMarker& marker, Float_t* p, Int_t n, Bool_t sec_selection = kFALSE)
static void	RenderPoints(const TAttMarker& marker, Float_t* p, Int_t n, Int_t pick_radius = 0, Bool_t selection = kFALSE, Bool_t sec_selection = kFALSE)
static void	RenderPolyLine(const TAttLine& al, Float_t* p, Int_t n, Int_t pick_radius = 0, Bool_t selection = kFALSE)
static void	RenderPolyMarkers(const TAttMarker& marker, Float_t* p, Int_t n, Int_t pick_radius = 0, Bool_t selection = kFALSE, Bool_t sec_selection = kFALSE)
static void	ResetDrawQuality()
static void	SetDefaultDrawQuality(UInt_t dq)
static void	SetDrawColors(const Float_t* rgba)
static void	SetDrawQuality(UInt_t dq)
virtual void	ShowMembers(TMemberInspector& insp, char* parent)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)
static UInt_t	UnlockColor()