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class TImageDump: public TVirtualPS


TImageDump

save canvas as an image (GIF, JPEG, PNG, XPM, TIFF etc.)
in batch mode.  Example:

$ root -b
root [0] .x hsimple.C
root [1] c1->Print("c1.gif");

TImageDump can be used in any mode (batch, interactive) as follows

TCanvas *c1;
TImageDump *imgdump = new TImageDump("test.png");
c1->Paint();
imgdump->Close();

Function Members (Methods)

public:

	TImageDump()
	TImageDump(const char* filename, Int_t type = -111)
virtual	~TImageDump()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
virtual void	CellArrayBegin(Int_t W, Int_t H, Double_t x1, Double_t x2, Double_t y1, Double_t y2)
virtual void	CellArrayEnd()
virtual void	CellArrayFill(Int_t r, Int_t g, Int_t b)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	TNamed::Clear(Option_t* option = "")
virtual TObject*	TNamed::Clone(const char* newname = "") const
virtual void	Close(Option_t* opt = "")
virtual Int_t	TNamed::Compare(const TObject* obj) const
virtual void	TNamed::Copy(TObject& named) const
virtual void	TObject::Delete(Option_t* option = "")MENU
Int_t	TAttLine::DistancetoLine(Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual void	TObject::Draw(Option_t* option = "")
virtual void	DrawBox(Double_t x1, Double_t y1, Double_t x2, Double_t y2)
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
virtual void	DrawFrame(Double_t xl, Double_t yl, Double_t xt, Double_t yt, Int_t mode, Int_t border, Int_t dark, Int_t light)
virtual void	DrawPolyMarker(Int_t n, Float_t* x, Float_t* y)
virtual void	DrawPolyMarker(Int_t n, Double_t* x, Double_t* y)
virtual void	DrawPS(Int_t n, Float_t* xw, Float_t* yw)
virtual void	DrawPS(Int_t n, Double_t* xw, Double_t* yw)
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::Fatal(const char* method, const char* msgfmt) const
virtual void	TNamed::FillBuffer(char*& buffer)
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual Color_t	TAttFill::GetFillColor() const
virtual Style_t	TAttFill::GetFillStyle() const
virtual const char*	TObject::GetIconName() const
TImage*	GetImage() const
virtual Color_t	TAttLine::GetLineColor() const
virtual Style_t	TAttLine::GetLineStyle() const
virtual Width_t	TAttLine::GetLineWidth() const
virtual Color_t	TAttMarker::GetMarkerColor() const
virtual Size_t	TAttMarker::GetMarkerSize() const
virtual Style_t	TAttMarker::GetMarkerStyle() const
virtual const char*	TNamed::GetName() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
virtual void*	GetStream() const
virtual Short_t	TAttText::GetTextAlign() const
virtual Float_t	TAttText::GetTextAngle() const
virtual Color_t	TAttText::GetTextColor() const
virtual Font_t	TAttText::GetTextFont() const
virtual Float_t	TAttText::GetTextSize() const
virtual const char*	TNamed::GetTitle() const
virtual Int_t	GetType() const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TNamed::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TNamed::IsSortable() const
virtual Bool_t	TAttFill::IsTransparent() const
Bool_t	TObject::IsZombie() const
virtual void	TNamed::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
virtual void	TAttLine::Modify()
virtual void	NewPage()
virtual Bool_t	TObject::Notify()
void	TObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
virtual void	Open(const char* filename, Int_t type = -111)
static void	TObject::operator delete(void* ptr)
static void	TObject::operator delete(void* ptr, void* vp)
static void	TObject::operator delete[](void* ptr)
static void	TObject::operator delete[](void* ptr, void* vp)
void*	TObject::operator new(size_t sz)
void*	TObject::operator new(size_t sz, void* vp)
void*	TObject::operator new[](size_t sz)
void*	TObject::operator new[](size_t sz, void* vp)
TNamed&	TNamed::operator=(const TNamed& rhs)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	TNamed::Print(Option_t* option = "") const
virtual void	TVirtualPS::PrintFast(Int_t nch, const char* string = "")
virtual void	TVirtualPS::PrintRaw(Int_t len, const char* str)
virtual void	TVirtualPS::PrintStr(const char* string = "")
virtual Int_t	TObject::Read(const char* name)
virtual void	TObject::RecursiveRemove(TObject* obj)
virtual void	TAttFill::ResetAttFill(Option_t* option = "")
virtual void	TAttLine::ResetAttLine(Option_t* option = "")
virtual void	TAttMarker::ResetAttMarker(Option_t* toption = "")
virtual void	TAttText::ResetAttText(Option_t* toption = "")
void	TObject::ResetBit(UInt_t f)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TAttFill::SaveFillAttributes(ostream& out, const char* name, Int_t coldef = 1, Int_t stydef = 1001)
virtual void	TAttLine::SaveLineAttributes(ostream& out, const char* name, Int_t coldef = 1, Int_t stydef = 1, Int_t widdef = 1)
virtual void	TAttMarker::SaveMarkerAttributes(ostream& out, const char* name, Int_t coldef = 1, Int_t stydef = 1, Int_t sizdef = 1)
virtual void	TObject::SavePrimitive(ostream& out, Option_t* option = "")
virtual void	TAttText::SaveTextAttributes(ostream& out, const char* name, Int_t alidef = 12, Float_t angdef = 0, Int_t coldef = 1, Int_t fondef = 61, Float_t sizdef = 1)
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	SetColor(Float_t r, Float_t g, Float_t b)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
virtual void	TAttFill::SetFillAttributes()MENU
virtual void	TAttFill::SetFillColor(Color_t fcolor)
virtual void	TAttFill::SetFillColorAlpha(Color_t fcolor, Float_t falpha)
virtual void	TAttFill::SetFillStyle(Style_t fstyle)
virtual void	TAttLine::SetLineAttributes()MENU
virtual void	TAttLine::SetLineColor(Color_t lcolor)
virtual void	TAttLine::SetLineColorAlpha(Color_t lcolor, Float_t lalpha)
virtual void	TAttLine::SetLineStyle(Style_t lstyle)
virtual void	TAttLine::SetLineWidth(Width_t lwidth)
virtual void	TAttMarker::SetMarkerAttributes()MENU
virtual void	TAttMarker::SetMarkerColor(Color_t mcolor = 1)
virtual void	TAttMarker::SetMarkerColorAlpha(Color_t mcolor, Float_t malpha)
virtual void	TAttMarker::SetMarkerSize(Size_t msize = 1)
virtual void	TAttMarker::SetMarkerStyle(Style_t mstyle = 1)
virtual void	TNamed::SetName(const char* name)MENU
virtual void	TNamed::SetNameTitle(const char* name, const char* title)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TVirtualPS::SetStream(ofstream* os)
virtual void	TAttText::SetTextAlign(Short_t align = 11)
virtual void	TAttText::SetTextAngle(Float_t tangle = 0)MENU
virtual void	TAttText::SetTextAttributes()MENU
virtual void	TAttText::SetTextColor(Color_t tcolor = 1)
virtual void	TAttText::SetTextColorAlpha(Color_t tcolor, Float_t talpha)
virtual void	TAttText::SetTextFont(Font_t tfont = 62)
virtual void	TAttText::SetTextSize(Float_t tsize = 1)
virtual void	TAttText::SetTextSizePixels(Int_t npixels)
virtual void	TNamed::SetTitle(const char* title = "")MENU
virtual void	SetType(Int_t type = -111)
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector&)
virtual Int_t	TNamed::Sizeof() const
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
virtual void	Text(Double_t x, Double_t y, const char* string)
virtual void	Text(Double_t x, Double_t y, const wchar_t* string)
virtual void	TObject::UseCurrentStyle()
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const
virtual void	TVirtualPS::WriteInteger(Int_t i, Bool_t space = kTRUE)
virtual void	TVirtualPS::WriteReal(Float_t r, Bool_t space = kTRUE)

protected:

virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
void	DrawDashPolyLine(Int_t npoints, TPoint* pt, UInt_t nDash, const char* pDash, const char* col, UInt_t thick)
void	TObject::MakeZombie()
Int_t	XtoPixel(Double_t x)
Int_t	YtoPixel(Double_t y)

Data Members

public:

enum TObject::EStatusBits {	kCanDelete
	kMustCleanup
	kObjInCanvas
	kIsReferenced
	kHasUUID
	kCannotPick
	kNoContextMenu
	kInvalidObject
};
enum TObject::[unnamed] {	kIsOnHeap
	kNotDeleted
	kZombie
	kBitMask
	kSingleKey
	kOverwrite
	kWriteDelete
};

protected:

char*	TVirtualPS::fBuffer	File buffer
Color_t	TAttFill::fFillColor	fill area color
Style_t	TAttFill::fFillStyle	fill area style
TImage*	fImage	image
const char*	TVirtualPS::fImplicitCREsc	Escape symbol before enforced new line
Int_t	TVirtualPS::fLenBuffer	Buffer length
Color_t	TAttLine::fLineColor	line color
Style_t	TAttLine::fLineStyle	line style
Width_t	TAttLine::fLineWidth	line width
Color_t	TAttMarker::fMarkerColor	Marker color index
Size_t	TAttMarker::fMarkerSize	Marker size
Style_t	TAttMarker::fMarkerStyle	Marker style
Int_t	TVirtualPS::fNByte	Number of bytes written in the file (PDF)
TString	TNamed::fName	object identifier
Bool_t	TVirtualPS::fPrinted	True when a page must be printed
Int_t	TVirtualPS::fSizBuffer	Buffer size
ofstream*	TVirtualPS::fStream	File stream identifier
Short_t	TAttText::fTextAlign	Text alignment
Float_t	TAttText::fTextAngle	Text angle
Color_t	TAttText::fTextColor	Text color index
Font_t	TAttText::fTextFont	Text font number
Float_t	TAttText::fTextSize	Text size
TString	TNamed::fTitle	object title
Int_t	fType	PostScript workstation type

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

TImageDump()

 Default SVG constructor

TImageDump(const char* filename, Int_t type = -111)

 Initialize batch image interface

  fname : image file name

    The possible workstation types are:
  111 - Portrait
  112 - Landscape
  114 - preview, keep in memory (do not write on delete)

void Open(const char* filename, Int_t type = -111)

 Open a image file

~TImageDump()

 destructor

void Close(Option_t* opt = "")

 Close a image file

void DrawBox(Double_t x1, Double_t y1, Double_t x2, Double_t y2)

 Draw a Box

void DrawFrame(Double_t xl, Double_t yl, Double_t xt, Double_t yt, Int_t mode, Int_t border, Int_t dark, Int_t light)

 Draw a Frame around a box

 mode = -1  the box looks as it is behind the screen
 mode =  1  the box looks as it is in front of the screen
 border is the border size in already pre-computed dark is the
 color for the dark part of the frame light is the color for the light
 part of the frame

void DrawPolyMarker(Int_t n, Float_t* x, Float_t* y)

 not used

void DrawPolyMarker(Int_t n, Double_t* x, Double_t* y)

 draw polymarker

void DrawPS(Int_t n, Double_t* xw, Double_t* yw)

 This function defines a path with xw and yw and draw it according the
 value of nn:

  If nn > 0 a line is drawn.
  If nn < 0 a closed polygon is drawn.

void DrawPS(Int_t n, Float_t* xw, Float_t* yw)

 not used

void DrawDashPolyLine(Int_t npoints, TPoint* pt, UInt_t nDash, const char* pDash, const char* col, UInt_t thick)

 draw dashed polyline

void NewPage()

 new page

void Text(Double_t x, Double_t y, const char* string)

 Draw text

 x: x position of the text
 y: y position of the text

void Text(Double_t x, Double_t y, const wchar_t* string)

 Draw text

 x: x position of the text
 y: y position of the text

void CellArrayBegin(Int_t W, Int_t H, Double_t x1, Double_t x2, Double_t y1, Double_t y2)

cell array begin

void CellArrayFill(Int_t r, Int_t g, Int_t b)

Cell array fill

void CellArrayEnd()

Cell array end

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

 Set color with its R G B components

  r: % of red in [0,1]
  g: % of green in [0,1]
  b: % of blue in [0,1]

Int_t XtoPixel(Double_t x)

 x to pixel

Int_t YtoPixel(Double_t y)

 y to pixel

void * GetStream() const

{ return (void*)fImage; }

void SetType(Int_t type = -111)

{ fType = type; }

Int_t GetType() const

{ return fType; }

TImage * GetImage() const

{ return fImage; }