ROOT 6.14/05 Reference Guide |
Draw Ellipses.
The ellipse can be truncated and rotated. It is defined by its center (x1,y1)
and two radius r1
and r2
.
A minimum and maximum angle may be specified (phimin, phimax)
. The ellipse may be rotated with an angle theta
. All these angles are in degrees. The attributes of the outline line are given via TAttLine
. The attributes of the fill area are given via TAttFill
. The picture below illustrates different types of ellipses.
When an ellipse sector only is drawn, the lines connecting the center of the ellipse to the edges are drawn by default. One can specify the drawing option "only" to not draw these lines or alternatively call the function SetNoEdges()
. To remove completely the ellipse outline it is enough to specify 0 as line style.
Definition at line 24 of file TEllipse.h.
Public Types | |
enum | { kNoEdges = BIT(9) } |
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 | |
TEllipse () | |
Ellipse default constructor. More... | |
TEllipse (Double_t x1, Double_t y1, Double_t r1, Double_t r2=0, Double_t phimin=0, Double_t phimax=360, Double_t theta=0) | |
Ellipse normal constructor. More... | |
TEllipse (const TEllipse &ellipse) | |
Copy constructor. More... | |
virtual | ~TEllipse () |
Ellipse default destructor. More... | |
void | Copy (TObject &ellipse) const |
Copy this ellipse to ellipse. More... | |
virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
Compute distance from point px,py to an ellipse. More... | |
virtual void | Draw (Option_t *option="") |
Draw this ellipse with its current attributes. More... | |
virtual void | DrawEllipse (Double_t x1, Double_t y1, Double_t r1, Double_t r2, Double_t phimin, Double_t phimax, Double_t theta, Option_t *option="") |
Draw this ellipse with new coordinates. More... | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to one event. More... | |
virtual Rectangle_t | GetBBox () |
Return the bounding Box of the Ellipse, currently not taking into account the rotating angle. More... | |
virtual TPoint | GetBBoxCenter () |
Return the center of the Ellipse as TPoint in pixels. More... | |
Bool_t | GetNoEdges () const |
Return kTRUE if kNoEdges bit is set, kFALSE otherwise. More... | |
Double_t | GetPhimax () const |
Double_t | GetPhimin () const |
Double_t | GetR1 () const |
Double_t | GetR2 () const |
Double_t | GetTheta () const |
Double_t | GetX1 () const |
Double_t | GetY1 () const |
virtual void | ls (Option_t *option="") const |
List this ellipse with its attributes. More... | |
virtual void | Paint (Option_t *option="") |
Paint this ellipse with its current attributes. More... | |
virtual void | PaintEllipse (Double_t x1, Double_t y1, Double_t r1, Double_t r2, Double_t phimin, Double_t phimax, Double_t theta, Option_t *option="") |
Draw this ellipse with new coordinates. More... | |
virtual void | Print (Option_t *option="") const |
Dump this ellipse 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 | SetBBoxCenter (const TPoint &p) |
Set center of the Ellipse. More... | |
virtual void | SetBBoxCenterX (const Int_t x) |
Set X coordinate of the center of the Ellipse. More... | |
virtual void | SetBBoxCenterY (const Int_t y) |
Set Y coordinate of the center of the Ellipse. More... | |
virtual void | SetBBoxX1 (const Int_t x) |
Set left hand side of BoundingBox to a value (resize in x direction on left) More... | |
virtual void | SetBBoxX2 (const Int_t x) |
Set right hand side of BoundingBox to a value (resize in x direction on right) More... | |
virtual void | SetBBoxY1 (const Int_t y) |
Set top of BoundingBox to a value (resize in y direction on top) More... | |
virtual void | SetBBoxY2 (const Int_t y) |
Set bottom of BoundingBox to a value (resize in y direction on bottom) More... | |
virtual void | SetNoEdges (Bool_t noEdges=kTRUE) |
if noEdges = kTRUE the lines connecting the center to the edges will not be drawn. More... | |
virtual void | SetPhimax (Double_t phi=360) |
virtual void | SetPhimin (Double_t phi=0) |
virtual void | SetR1 (Double_t r1) |
virtual void | SetR2 (Double_t r2) |
virtual void | SetTheta (Double_t theta=0) |
virtual void | SetX1 (Double_t x1) |
virtual void | SetY1 (Double_t y1) |
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 () |
Checked and record whether for 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 | Delete (Option_t *option="") |
Delete this object. 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 | 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 |
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 | Pop () |
Pop on object drawn in a pad to the top of the display list. 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... | |
void | SetBit (UInt_t f, Bool_t set) |
Set or unset the user status bits as specified in f. More... | |
void | SetBit (UInt_t f) |
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... | |
Public Member Functions inherited from TAttBBox2D | |
virtual | ~TAttBBox2D () |
Protected Attributes | |
Double_t | fPhimax |
Maximum angle (degrees) More... | |
Double_t | fPhimin |
Minimum angle (degrees) More... | |
Double_t | fR1 |
first radius More... | |
Double_t | fR2 |
second radius More... | |
Double_t | fTheta |
Rotation angle (degrees) More... | |
Double_t | fX1 |
X coordinate of centre. More... | |
Double_t | fY1 |
Y coordinate of centre. 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... | |
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 () |
#include <TEllipse.h>
anonymous enum |
Enumerator | |
---|---|
kNoEdges |
Definition at line 37 of file TEllipse.h.
TEllipse::TEllipse | ( | ) |
Ellipse default constructor.
Definition at line 55 of file TEllipse.cxx.
TEllipse::TEllipse | ( | Double_t | x1, |
Double_t | y1, | ||
Double_t | r1, | ||
Double_t | r2 = 0 , |
||
Double_t | phimin = 0 , |
||
Double_t | phimax = 360 , |
||
Double_t | theta = 0 |
||
) |
Ellipse normal constructor.
Definition at line 69 of file TEllipse.cxx.
TEllipse::TEllipse | ( | const TEllipse & | ellipse | ) |
Copy constructor.
Definition at line 92 of file TEllipse.cxx.
|
virtual |
Ellipse default destructor.
Definition at line 85 of file TEllipse.cxx.
Copy this ellipse to ellipse.
Reimplemented from TObject.
Definition at line 108 of file TEllipse.cxx.
Compute distance from point px,py to an ellipse.
Compute the closest distance of approach from point px,py to this ellipse. The distance is computed in pixels units.
In case of a filled ellipse the distance returned is 0 if the point (px,py) is inside the ellipse, and is huge if the point is outside.
Reimplemented from TObject.
Reimplemented in TCrown.
Definition at line 131 of file TEllipse.cxx.
Draw this ellipse with its current attributes.
Reimplemented from TObject.
Definition at line 166 of file TEllipse.cxx.
|
virtual |
Draw this ellipse with new coordinates.
Definition at line 174 of file TEllipse.cxx.
Execute action corresponding to one event.
This member function is called when a line 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.
NOTE that support for log scale is not implemented
Reimplemented from TObject.
Reimplemented in TCrown.
Definition at line 197 of file TEllipse.cxx.
|
virtual |
Return the bounding Box of the Ellipse, currently not taking into account the rotating angle.
Implements TAttBBox2D.
Definition at line 661 of file TEllipse.cxx.
|
virtual |
Return the center of the Ellipse as TPoint in pixels.
Implements TAttBBox2D.
Definition at line 674 of file TEllipse.cxx.
Bool_t TEllipse::GetNoEdges | ( | ) | const |
Return kTRUE if kNoEdges bit is set, kFALSE otherwise.
Definition at line 609 of file TEllipse.cxx.
|
inline |
Definition at line 54 of file TEllipse.h.
|
inline |
Definition at line 53 of file TEllipse.h.
|
inline |
Definition at line 51 of file TEllipse.h.
|
inline |
Definition at line 52 of file TEllipse.h.
|
inline |
Definition at line 55 of file TEllipse.h.
|
inline |
Definition at line 49 of file TEllipse.h.
|
inline |
Definition at line 50 of file TEllipse.h.
List this ellipse with its attributes.
Reimplemented from TObject.
Definition at line 509 of file TEllipse.cxx.
Paint this ellipse with its current attributes.
Reimplemented from TObject.
Reimplemented in TCrown.
Definition at line 518 of file TEllipse.cxx.
|
virtual |
Draw this ellipse with new coordinates.
Definition at line 526 of file TEllipse.cxx.
Dump this ellipse with its attributes.
Reimplemented from TObject.
Definition at line 575 of file TEllipse.cxx.
Save primitive as a C++ statement(s) on output stream out.
Reimplemented from TObject.
Reimplemented in TArc, and TCrown.
Definition at line 587 of file TEllipse.cxx.
Set X coordinate of the center of the Ellipse.
Implements TAttBBox2D.
Definition at line 694 of file TEllipse.cxx.
Set Y coordinate of the center of the Ellipse.
Implements TAttBBox2D.
Definition at line 702 of file TEllipse.cxx.
Set left hand side of BoundingBox to a value (resize in x direction on left)
Implements TAttBBox2D.
Definition at line 711 of file TEllipse.cxx.
Set right hand side of BoundingBox to a value (resize in x direction on right)
Implements TAttBBox2D.
Definition at line 724 of file TEllipse.cxx.
Set top of BoundingBox to a value (resize in y direction on top)
Implements TAttBBox2D.
Definition at line 736 of file TEllipse.cxx.
Set bottom of BoundingBox to a value (resize in y direction on bottom)
Implements TAttBBox2D.
Definition at line 749 of file TEllipse.cxx.
if noEdges = kTRUE the lines connecting the center to the edges will not be drawn.
default is to draw the edges.
Definition at line 619 of file TEllipse.cxx.
Definition at line 64 of file TEllipse.h.
Definition at line 63 of file TEllipse.h.
Definition at line 65 of file TEllipse.h.
Definition at line 66 of file TEllipse.h.
Definition at line 67 of file TEllipse.h.
Definition at line 68 of file TEllipse.h.
Definition at line 69 of file TEllipse.h.
|
protected |
Maximum angle (degrees)
Definition at line 32 of file TEllipse.h.
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protected |
Minimum angle (degrees)
Definition at line 31 of file TEllipse.h.
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protected |
first radius
Definition at line 29 of file TEllipse.h.
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protected |
second radius
Definition at line 30 of file TEllipse.h.
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protected |
Rotation angle (degrees)
Definition at line 33 of file TEllipse.h.
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protected |
X coordinate of centre.
Definition at line 27 of file TEllipse.h.
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protected |
Y coordinate of centre.
Definition at line 28 of file TEllipse.h.