class THLimitsFinder: public TObject
THLimitsFinder Class to compute nice axis limits. This class is called by default by the histograming system and also by TTree::Draw, TTreePlayer::DrawSelect. A different finder may be specified via THLimitsFinder::SetFinder.
Function Members (Methods)
public:
| THLimitsFinder() | |
| THLimitsFinder(const THLimitsFinder&) | |
| virtual | ~THLimitsFinder() |
| void | TObject::AbstractMethod(const char* method) const |
| virtual void | TObject::AppendPad(Option_t* option = "") |
| virtual void | TObject::Browse(TBrowser* b) |
| static TClass* | Class() |
| virtual const char* | TObject::ClassName() const |
| virtual void | TObject::Clear(Option_t* = "") |
| virtual TObject* | TObject::Clone(const char* newname = "") const |
| virtual Int_t | TObject::Compare(const TObject* obj) const |
| virtual void | TObject::Copy(TObject& object) const |
| virtual void | TObject::Delete(Option_t* option = "")MENU |
| virtual Int_t | TObject::DistancetoPrimitive(Int_t px, Int_t py) |
| virtual void | TObject::Draw(Option_t* option = "") |
| virtual void | TObject::DrawClass() constMENU |
| virtual TObject* | TObject::DrawClone(Option_t* option = "") constMENU |
| 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 Int_t | FindGoodLimits(TH1* h, Double_t xmin, Double_t xmax) |
| virtual Int_t | FindGoodLimits(TH1* h, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax) |
| virtual Int_t | FindGoodLimits(TH1* h, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax) |
| 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 const char* | TObject::GetIconName() const |
| static THLimitsFinder* | GetLimitsFinder() |
| virtual const char* | TObject::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 const char* | TObject::GetTitle() const |
| virtual UInt_t | TObject::GetUniqueID() const |
| virtual Bool_t | TObject::HandleTimer(TTimer* timer) |
| virtual ULong_t | TObject::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 | TObject::IsSortable() const |
| Bool_t | TObject::IsZombie() const |
| virtual void | TObject::ls(Option_t* option = "") const |
| void | TObject::MayNotUse(const char* method) const |
| virtual Bool_t | TObject::Notify() |
| void | TObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const |
| 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) |
| THLimitsFinder& | operator=(const THLimitsFinder&) |
| static void | Optimize(Double_t A1, Double_t A2, Int_t nold, Double_t& BinLow, Double_t& BinHigh, Int_t& nbins, Double_t& BWID, Option_t* option = "") |
| static void | OptimizeLimits(Int_t nbins, Int_t& newbins, Double_t& xmin, Double_t& xmax, Bool_t isInteger) |
| virtual void | TObject::Paint(Option_t* option = "") |
| virtual void | TObject::Pop() |
| virtual void | TObject::Print(Option_t* option = "") const |
| virtual Int_t | TObject::Read(const char* name) |
| virtual void | TObject::RecursiveRemove(TObject* obj) |
| void | TObject::ResetBit(UInt_t f) |
| virtual void | TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU |
| virtual void | TObject::SavePrimitive(ostream& out, Option_t* option = "") |
| void | TObject::SetBit(UInt_t f) |
| void | TObject::SetBit(UInt_t f, Bool_t set) |
| virtual void | TObject::SetDrawOption(Option_t* option = "")MENU |
| static void | TObject::SetDtorOnly(void* obj) |
| static void | SetLimitsFinder(THLimitsFinder* finder) |
| static void | TObject::SetObjectStat(Bool_t stat) |
| virtual void | TObject::SetUniqueID(UInt_t uid) |
| virtual void | ShowMembers(TMemberInspector& insp) |
| virtual void | Streamer(TBuffer& b) |
| void | StreamerNVirtual(TBuffer& 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 | 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 |
protected:
| virtual void | TObject::DoError(int level, const char* location, const char* fmt, va_list va) const |
| void | TObject::MakeZombie() |
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:
| static THLimitsFinder* | fgLimitsFinder | !Pointer to hist limits finder |
Class Charts
Function documentation
Int_t FindGoodLimits(TH1* h, Double_t xmin, Double_t xmax)
compute the best axis limits for the X axis. If the bit kIsInteger is set, the number of channels is also recomputed. The axis parameters are replaced by the optimized parameters example: With the input parameters xmin=-1.467 and xmax=2.344, the function will compute better limits -1.8 and 2.7 and store them in the axis.
Int_t FindGoodLimits(TH1* h, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax)
compute the best axis limits for the X and Y axis. If the bit kIsInteger is set, the number of channels is also recomputed. The axis parameters are replaced by the optimized parameters
Int_t FindGoodLimits(TH1* h, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax)
compute the best axis limits for the X, Y and Z axis. If the bit kIsInteger is set, the number of channels is also recomputed. The axis parameters are replaced by the optimized parameters
THLimitsFinder * GetLimitsFinder()
Return pointer to the current finder. Create one if none exists Use SetLimitsFinder to set a user defined finder.
void SetLimitsFinder(THLimitsFinder* finder)
This static function can be used to specify a finder derived from THLimitsFinder. The finder may redefine the functions FindGoodLimits. Note that the redefined functions may call THLimitsFinder::FindGoodLimits.
void Optimize(Double_t A1, Double_t A2, Int_t nold, Double_t& BinLow, Double_t& BinHigh, Int_t& nbins, Double_t& BWID, Option_t* option = "")
static function to compute reasonable axis limits
Input parameters:
A1,A2 : Original axis limits
BinLow,BinHigh : Optimized axis limits. They should be initialized by the
calling method for instance to 0.
nold : Original number of divisions.
nbins : Optimized number of divisions.
BinWidth : Optimized bin width. It should be initialized by the
calling method for instance to 0.
option : "T" means Time axis.