ROOT 6.18/05 Reference Guide |
Defined by an array on N points in a 2-D space.
One can draw the contour of the polyline or/and its fill area. Example:
Definition at line 23 of file TPolyLine.h.
Public Types | |
enum | { kPolyLineNDC = BIT(14) } |
Public Types inherited from TObject | |
enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
enum | { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) } |
enum | EDeprecatedStatusBits { kObjInCanvas = BIT(3) } |
enum | EStatusBits { kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) , kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) } |
Public Member Functions | |
TPolyLine () | |
PolyLine default constructor. More... | |
TPolyLine (const TPolyLine &polyline) | |
PolyLine copy constructor. More... | |
TPolyLine (Int_t n, Double_t *x, Double_t *y, Option_t *option="") | |
PolyLine normal constructor (double precision). More... | |
TPolyLine (Int_t n, Float_t *x, Float_t *y, Option_t *option="") | |
PolyLine normal constructor (single precision). More... | |
TPolyLine (Int_t n, Option_t *option="") | |
PolyLine normal constructor without initialisation. More... | |
virtual | ~TPolyLine () |
PolyLine default destructor. More... | |
virtual void | Copy (TObject &polyline) const |
Copy this polyline to polyline. More... | |
virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
Returns closest distance in pixels from point (px, py) to a polyline. More... | |
virtual void | Draw (Option_t *option="") |
Draw this polyline with its current attributes. More... | |
virtual void | DrawPolyLine (Int_t n, Double_t *x, Double_t *y, Option_t *option="") |
Draw this polyline with new coordinates. More... | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to one event. More... | |
virtual Int_t | GetLastPoint () const |
Int_t | GetN () const |
Option_t * | GetOption () const |
Double_t * | GetX () const |
Double_t * | GetY () const |
virtual void | ls (Option_t *option="") const |
List this polyline with its attributes. More... | |
virtual Int_t | Merge (TCollection *list) |
Merge polylines in the collection in this polyline. More... | |
virtual void | Paint (Option_t *option="") |
Paint this polyline with its current attributes. More... | |
virtual void | PaintPolyLine (Int_t n, Double_t *x, Double_t *y, Option_t *option="") |
Draw this polyline with new coordinates. More... | |
virtual void | PaintPolyLineNDC (Int_t n, Double_t *x, Double_t *y, Option_t *option="") |
Draw this polyline with new coordinates in NDC. More... | |
virtual void | Print (Option_t *option="") const |
Dump this polyline with its attributes. More... | |
virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
Save primitive as a C++ statement(s) on output stream out. More... | |
virtual void | SetNDC (Bool_t isNDC=kTRUE) |
Set NDC mode on if isNDC = kTRUE, off otherwise. More... | |
virtual Int_t | SetNextPoint (Double_t x, Double_t y) |
Set point following LastPoint to x, y. More... | |
virtual void | SetOption (Option_t *option="") |
virtual void | SetPoint (Int_t point, Double_t x, Double_t y) |
Set point number n to (x, y) If n is greater than the current size, the arrays are automatically extended. More... | |
virtual void | SetPolyLine (Int_t n) |
Resize this polyline to size n. More... | |
virtual void | SetPolyLine (Int_t n, Double_t *x, Double_t *y3, Option_t *option="") |
Set new values for this polyline (double precision). More... | |
virtual void | SetPolyLine (Int_t n, Float_t *x, Float_t *y, Option_t *option="") |
Set new values for this polyline (single precision). More... | |
virtual Int_t | Size () const |
Public Member Functions inherited from TObject | |
TObject () | |
TObject constructor. More... | |
TObject (const TObject &object) | |
TObject copy ctor. More... | |
virtual | ~TObject () |
TObject destructor. More... | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. More... | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. More... | |
virtual void | Browse (TBrowser *b) |
Browse object. May be overridden for another default action. More... | |
ULong_t | CheckedHash () |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More... | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. More... | |
virtual void | Clear (Option_t *="") |
virtual TObject * | Clone (const char *newname="") const |
Make a clone of an object using the Streamer facility. More... | |
virtual Int_t | Compare (const TObject *obj) const |
Compare abstract method. More... | |
virtual void | Copy (TObject &object) const |
Copy this to obj. More... | |
virtual void | Delete (Option_t *option="") |
Delete this object. More... | |
virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
Computes distance from point (px,py) to the object. More... | |
virtual void | Draw (Option_t *option="") |
Default Draw method for all objects. More... | |
virtual void | DrawClass () const |
Draw class inheritance tree of the class to which this object belongs. More... | |
virtual TObject * | DrawClone (Option_t *option="") const |
Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad) . More... | |
virtual void | Dump () const |
Dump contents of object on stdout. More... | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. More... | |
virtual void | Execute (const char *method, const char *params, Int_t *error=0) |
Execute method on this object with the given parameter string, e.g. More... | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=0) |
Execute method on this object with parameters stored in the TObjArray. More... | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to an event at (px,py). More... | |
virtual void | Fatal (const char *method, const char *msgfmt,...) const |
Issue fatal error message. More... | |
virtual TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. More... | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. More... | |
virtual Option_t * | GetDrawOption () const |
Get option used by the graphics system to draw this object. More... | |
virtual const char * | GetIconName () const |
Returns mime type name of object. More... | |
virtual const char * | GetName () const |
Returns name of object. More... | |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). More... | |
virtual Option_t * | GetOption () const |
virtual const char * | GetTitle () const |
Returns title of object. More... | |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. More... | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. More... | |
virtual ULong_t | Hash () const |
Return hash value for this object. More... | |
Bool_t | HasInconsistentHash () const |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More... | |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. More... | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". More... | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. More... | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. More... | |
void | InvertBit (UInt_t f) |
virtual Bool_t | IsEqual (const TObject *obj) const |
Default equal comparison (objects are equal if they have the same address in memory). More... | |
virtual Bool_t | IsFolder () const |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More... | |
R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
virtual Bool_t | IsSortable () const |
R__ALWAYS_INLINE Bool_t | IsZombie () const |
virtual void | ls (Option_t *option="") const |
The ls function lists the contents of a class on stdout. More... | |
void | MayNotUse (const char *method) const |
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More... | |
virtual Bool_t | Notify () |
This method must be overridden to handle object notification. More... | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. More... | |
void | operator delete (void *ptr) |
Operator delete. More... | |
void | operator delete[] (void *ptr) |
Operator delete []. More... | |
void * | operator new (size_t sz) |
void * | operator new (size_t sz, void *vp) |
void * | operator new[] (size_t sz) |
void * | operator new[] (size_t sz, void *vp) |
TObject & | operator= (const TObject &rhs) |
TObject assignment operator. More... | |
virtual void | Paint (Option_t *option="") |
This method must be overridden if a class wants to paint itself. More... | |
virtual void | Pop () |
Pop on object drawn in a pad to the top of the display list. More... | |
virtual void | Print (Option_t *option="") const |
This method must be overridden when a class wants to print itself. More... | |
virtual Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. More... | |
virtual void | RecursiveRemove (TObject *obj) |
Recursively remove this object from a list. More... | |
void | ResetBit (UInt_t f) |
virtual void | SaveAs (const char *filename="", Option_t *option="") const |
Save this object in the file specified by filename. More... | |
virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
Save a primitive as a C++ statement(s) on output stream "out". More... | |
void | SetBit (UInt_t f) |
void | SetBit (UInt_t f, Bool_t set) |
Set or unset the user status bits as specified in f. More... | |
virtual void | SetDrawOption (Option_t *option="") |
Set drawing option for object. More... | |
virtual void | SetUniqueID (UInt_t uid) |
Set the unique object id. More... | |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. More... | |
R__ALWAYS_INLINE Bool_t | TestBit (UInt_t f) const |
Int_t | TestBits (UInt_t f) const |
virtual void | UseCurrentStyle () |
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More... | |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. More... | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. More... | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. More... | |
Public Member Functions inherited from TAttLine | |
TAttLine () | |
AttLine default constructor. More... | |
TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth) | |
AttLine normal constructor. More... | |
virtual | ~TAttLine () |
AttLine destructor. More... | |
void | Copy (TAttLine &attline) const |
Copy this line attributes to a new TAttLine. More... | |
Int_t | DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2) |
Compute distance from point px,py to a line. More... | |
virtual Color_t | GetLineColor () const |
Return the line color. More... | |
virtual Style_t | GetLineStyle () const |
Return the line style. More... | |
virtual Width_t | GetLineWidth () const |
Return the line width. More... | |
virtual void | Modify () |
Change current line attributes if necessary. More... | |
virtual void | ResetAttLine (Option_t *option="") |
Reset this line attributes to default values. More... | |
virtual void | SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1) |
Save line attributes as C++ statement(s) on output stream out. More... | |
virtual void | SetLineAttributes () |
Invoke the DialogCanvas Line attributes. More... | |
virtual void | SetLineColor (Color_t lcolor) |
Set the line color. More... | |
virtual void | SetLineColorAlpha (Color_t lcolor, Float_t lalpha) |
Set a transparent line color. More... | |
virtual void | SetLineStyle (Style_t lstyle) |
Set the line style. More... | |
virtual void | SetLineWidth (Width_t lwidth) |
Set the line width. More... | |
Public Member Functions inherited from TAttFill | |
TAttFill () | |
AttFill default constructor. More... | |
TAttFill (Color_t fcolor, Style_t fstyle) | |
AttFill normal constructor. More... | |
virtual | ~TAttFill () |
AttFill destructor. More... | |
void | Copy (TAttFill &attfill) const |
Copy this fill attributes to a new TAttFill. More... | |
virtual Color_t | GetFillColor () const |
Return the fill area color. More... | |
virtual Style_t | GetFillStyle () const |
Return the fill area style. More... | |
virtual Bool_t | IsTransparent () const |
virtual void | Modify () |
Change current fill area attributes if necessary. More... | |
virtual void | ResetAttFill (Option_t *option="") |
Reset this fill attributes to default values. More... | |
virtual void | SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001) |
Save fill attributes as C++ statement(s) on output stream out. More... | |
virtual void | SetFillAttributes () |
Invoke the DialogCanvas Fill attributes. More... | |
virtual void | SetFillColor (Color_t fcolor) |
Set the fill area color. More... | |
virtual void | SetFillColorAlpha (Color_t fcolor, Float_t falpha) |
Set a transparent fill color. More... | |
virtual void | SetFillStyle (Style_t fstyle) |
Set the fill area style. More... | |
Protected Member Functions | |
TPolyLine & | operator= (const TPolyLine &) |
assignment operator More... | |
Protected Member Functions inherited from TObject | |
virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
Interface to ErrorHandler (protected). More... | |
void | MakeZombie () |
Protected Attributes | |
Int_t | fLastPoint |
The index of the last filled point. More... | |
Int_t | fN |
Number of points. More... | |
TString | fOption |
options More... | |
Double_t * | fX |
[fN] Array of X coordinates More... | |
Double_t * | fY |
[fN] Array of Y coordinates More... | |
Protected Attributes inherited from TAttLine | |
Color_t | fLineColor |
Line color. More... | |
Style_t | fLineStyle |
Line style. More... | |
Width_t | fLineWidth |
Line width. More... | |
Protected Attributes inherited from TAttFill | |
Color_t | fFillColor |
Fill area color. More... | |
Style_t | fFillStyle |
Fill area style. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from TObject | |
static Long_t | GetDtorOnly () |
Return destructor only flag. More... | |
static Bool_t | GetObjectStat () |
Get status of object stat flag. More... | |
static void | SetDtorOnly (void *obj) |
Set destructor only flag. More... | |
static void | SetObjectStat (Bool_t stat) |
Turn on/off tracking of objects in the TObjectTable. More... | |
#include <TPolyLine.h>
anonymous enum |
Enumerator | |
---|---|
kPolyLineNDC | Polyline coordinates are in NDC space. |
Definition at line 36 of file TPolyLine.h.
TPolyLine::TPolyLine | ( | ) |
PolyLine default constructor.
Definition at line 45 of file TPolyLine.cxx.
PolyLine normal constructor without initialisation.
Allocates n points. The option string is ignored.
Definition at line 57 of file TPolyLine.cxx.
PolyLine normal constructor (single precision).
Makes n points with (x, y) coordinates from x and y. The option string is ignored.
Definition at line 78 of file TPolyLine.cxx.
PolyLine normal constructor (double precision).
Makes n points with (x, y) coordinates from x and y. The option string is ignored.
Definition at line 102 of file TPolyLine.cxx.
TPolyLine::TPolyLine | ( | const TPolyLine & | polyline | ) |
PolyLine copy constructor.
Definition at line 151 of file TPolyLine.cxx.
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virtual |
PolyLine default destructor.
Definition at line 142 of file TPolyLine.cxx.
Copy this polyline to polyline.
Reimplemented from TObject.
Definition at line 163 of file TPolyLine.cxx.
Returns closest distance in pixels from point (px, py) to a polyline.
First looks for distances to the points of the polyline. Stops search and returns if a vertex of the polyline is found to be closer than 10 pixels. Thus the return value may depend on the ordering of points in the polyline.
Then looks for distances to the lines of the polyline. There is no arbitrary cutoff; any distance may be found.
Finally checks whether (px, py) is inside a closed and filled polyline. (Must be EXACTLY closed. "Filled" means fill color and fill style are both non-zero.) If so, returns zero.
Returns 9999 if the polyline has no points.
Reimplemented from TObject.
Reimplemented in TCurlyArc, and TCurlyLine.
Definition at line 198 of file TPolyLine.cxx.
Draw this polyline with its current attributes.
Reimplemented from TObject.
Definition at line 232 of file TPolyLine.cxx.
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virtual |
Draw this polyline with new coordinates.
Definition at line 240 of file TPolyLine.cxx.
Execute action corresponding to one event.
This member function is called when a polyline is clicked with the locator
If Left button clicked on one of the line end points, this point follows the cursor until button is released.
if Middle button clicked, the line is moved parallel to itself until the button is released.
Reimplemented from TObject.
Reimplemented in TCurlyArc, and TCurlyLine.
Definition at line 261 of file TPolyLine.cxx.
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inlinevirtual |
Definition at line 52 of file TPolyLine.h.
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inline |
Definition at line 53 of file TPolyLine.h.
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inlinevirtual |
Reimplemented from TObject.
Definition at line 56 of file TPolyLine.h.
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inline |
Definition at line 54 of file TPolyLine.h.
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inline |
Definition at line 55 of file TPolyLine.h.
List this polyline with its attributes.
The option string is ignored.
Reimplemented from TObject.
Definition at line 486 of file TPolyLine.cxx.
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virtual |
Merge polylines in the collection in this polyline.
Definition at line 495 of file TPolyLine.cxx.
assignment operator
Definition at line 124 of file TPolyLine.cxx.
Paint this polyline with its current attributes.
Reimplemented from TObject.
Definition at line 531 of file TPolyLine.cxx.
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virtual |
Draw this polyline with new coordinates.
If option = 'f' or 'F' the fill area is drawn. The default is to draw the lines only.
Definition at line 548 of file TPolyLine.cxx.
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virtual |
Draw this polyline with new coordinates in NDC.
Definition at line 572 of file TPolyLine.cxx.
Dump this polyline with its attributes.
The option string is ignored.
Reimplemented from TObject.
Definition at line 584 of file TPolyLine.cxx.
Save primitive as a C++ statement(s) on output stream out.
Reimplemented from TObject.
Reimplemented in TCurlyArc, and TCurlyLine.
Definition at line 592 of file TPolyLine.cxx.
Set NDC mode on if isNDC = kTRUE, off otherwise.
Definition at line 617 of file TPolyLine.cxx.
Set point following LastPoint to x, y.
Returns index of the point (new last point).
Definition at line 627 of file TPolyLine.cxx.
Definition at line 66 of file TPolyLine.h.
Set point number n to (x, y) If n is greater than the current size, the arrays are automatically extended.
Definition at line 639 of file TPolyLine.cxx.
Resize this polyline to size n.
If n <= 0 the current arrays of points are deleted. If n is greater than the current size, the new points are set to (0, 0)
Definition at line 671 of file TPolyLine.cxx.
Set new values for this polyline (double precision).
If n <= 0 the current arrays of points are deleted.
Definition at line 722 of file TPolyLine.cxx.
Set new values for this polyline (single precision).
If n <= 0 the current arrays of points are deleted.
Definition at line 694 of file TPolyLine.cxx.
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inlinevirtual |
Definition at line 71 of file TPolyLine.h.
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protected |
The index of the last filled point.
Definition at line 27 of file TPolyLine.h.
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protected |
Number of points.
Definition at line 26 of file TPolyLine.h.
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protected |
options
Definition at line 30 of file TPolyLine.h.
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protected |
[fN] Array of X coordinates
Definition at line 28 of file TPolyLine.h.
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protected |
[fN] Array of Y coordinates
Definition at line 29 of file TPolyLine.h.