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Reference Guide
TPie.cxx
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1// @(#)root/graf:$Id$
2// Author: Guido Volpi, Olivier Couet 03/11/2006
3
4/*************************************************************************
5 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
11
12#include "TPie.h"
13#include "TPieSlice.h"
14
15#include <iostream>
16#include <TROOT.h>
17#include <TVirtualPad.h>
18#include <TVirtualX.h>
19#include <TArc.h>
20#include <TLegend.h>
21#include <TMath.h>
22#include <TStyle.h>
23#include <TLatex.h>
24#include <TPaveText.h>
25#include <TH1.h>
26#include <TColor.h>
27#include <TLine.h>
28
30
31/** \class TPie
32\ingroup BasicGraphics
33
34Draw a Pie Chart,
35
36Example:
37
38Begin_Macro(source)
39../../../tutorials/graphics/piechart.C
40End_Macro
41*/
42
43Double_t gX = 0; // Temporary pie X position.
44Double_t gY = 0; // Temporary pie Y position.
45Double_t gRadius = 0; // Temporary pie Radius of the TPie.
46Double_t gRadiusOffset = 0; // Temporary slice's radial offset.
47Double_t gAngularOffset = 0; // Temporary slice's angular offset.
48Bool_t gIsUptSlice = kFALSE; // True if a slice in the TPie should
49 // be updated.
50Int_t gCurrent_slice = -1;// Current slice under mouse.
51Double_t gCurrent_phi1 = 0; // Phimin of the current slice.
52Double_t gCurrent_phi2 = 0; // Phimax of the current slice.
53Double_t gCurrent_rad = 0; // Current distance from the vertex of the
54 // current slice.
55Double_t gCurrent_x = 0; // Current x in the pad metric.
56Double_t gCurrent_y = 0; // Current y in the pad metric.
57Double_t gCurrent_ang = 0; // Current angular, within current_phi1
58 // and current_phi2.
59
60////////////////////////////////////////////////////////////////////////////////
61/// Default constructor.
62
64{
65 Init(1, 0, 0.5, 0.5, 0.4);
66}
67
68////////////////////////////////////////////////////////////////////////////////
69/// This constructor creates a pie chart when only the number of
70/// the slices is known. The number of slices is fixed.
71
72TPie::TPie(const char *name, const char *title, Int_t npoints) :
73 TNamed(name,title)
74{
75 Init(npoints, 0, 0.5, 0.5, 0.4);
76}
77
78////////////////////////////////////////////////////////////////////////////////
79/// Normal constructor. The 1st and 2nd parameters are the name of the object
80/// and its title.
81///
82/// The number of points passed at this point is used to allocate the memory.
83///
84/// Slices values are given as Double_t.
85///
86/// The 4th elements is an array containing, in double precision format,
87/// the value of each slice. It is also possible to specify the filled color
88/// of each slice. If the color array is not specified the slices are colored
89/// using a color sequence in the standard palette.
90
91TPie::TPie(const char *name, const char *title,
92 Int_t npoints, Double_t *vals,
93 Int_t *colors, const char *lbls[]) : TNamed(name,title)
94{
95 Init(npoints, 0, 0.5, 0.5, 0.4);
96 for (Int_t i=0; i<fNvals; ++i) fPieSlices[i]->SetValue(vals[i]);
97
99 SetLabels(lbls);
100}
101
102////////////////////////////////////////////////////////////////////////////////
103/// Normal constructor (Float_t).
104
105TPie::TPie(const char *name,
106 const char *title,
107 Int_t npoints, Float_t *vals,
108 Int_t *colors, const char *lbls[]) : TNamed(name,title)
109{
110 Init(npoints, 0, 0.5, 0.5, 0.4);
111 for (Int_t i=0; i<fNvals; ++i) fPieSlices[i]->SetValue(vals[i]);
112
114 SetLabels(lbls);
115}
116
117////////////////////////////////////////////////////////////////////////////////
118/// Constructor from a TH1
119
120TPie::TPie(const TH1 *h) : TNamed(h->GetName(),h->GetTitle())
121{
122 Int_t i;
123
124 const TAxis *axis = h->GetXaxis();
125 Int_t first = axis->GetFirst();
126 Int_t last = axis->GetLast();
127 Int_t np = last-first+1;
128 Init(np, 0, 0.5, 0.5, 0.4);
129
130 for (i=first; i<=last; ++i) fPieSlices[i-first]->SetValue(h->GetBinContent(i));
131 if (axis->GetLabels()) {
132 for (i=first; i<=last; ++i) fPieSlices[i-first]->SetTitle(axis->GetBinLabel(i));
133 } else {
134 SetLabelFormat("%val");
135 }
136 SetTextSize(axis->GetLabelSize());
138 SetTextFont(axis->GetLabelFont());
139}
140
141////////////////////////////////////////////////////////////////////////////////
142/// Copy constructor.
143
144TPie::TPie(const TPie &cpy) : TNamed(cpy), TAttText(cpy)
145{
146 Init(cpy.fNvals, cpy.fAngularOffset, cpy.fX, cpy.fY, cpy.fRadius);
147
148 for (Int_t i=0;i<fNvals;++i) {
149 fPieSlices[i] = cpy.fPieSlices[i];
150 }
151}
152
153////////////////////////////////////////////////////////////////////////////////
154/// Destructor.
155
157{
158 if (fNvals>0) {
159 for (int i=0; i<fNvals; ++i) delete fPieSlices[i];
160 delete [] fPieSlices;
161 }
162
163 if (fSlices) delete [] fSlices;
164 if (fLegend) delete fLegend;
165}
166
167////////////////////////////////////////////////////////////////////////////////
168/// Evaluate the distance to the chart in gPad.
169
171{
172 Int_t dist = 9999;
173
175 if ( gCurrent_slice>=0 ) {
176 if (gCurrent_rad<=fRadius) {
177 dist = 0;
178 }
179 }
180
181 return dist;
182}
183
184////////////////////////////////////////////////////////////////////////////////
185/// Returns the slice number at the pixel position (px,py).
186/// Returns -1 if no slice is picked.
187///
188/// Used by DistancetoPrimitive.
189
191{
192 MakeSlices();
193
194 Int_t result(-1);
195
196 // coordinates
197 Double_t xx = gPad->AbsPixeltoX(px); //gPad->PadtoX(gPad->AbsPixeltoX(px));
198 Double_t yy = gPad->AbsPixeltoY(py); //gPad->PadtoY(gPad->AbsPixeltoY(py));
199
200 // XY metric
201 Double_t radX = fRadius;
202 Double_t radY = fRadius;
203 Double_t radXY = 1.;
204 if (fIs3D==kTRUE) {
205 radXY = TMath::Sin(fAngle3D/180.*TMath::Pi());
206 radY = radXY*radX;
207 }
208
209 Double_t phimin;
210 Double_t cphi;
211 Double_t phimax;
212
213 Float_t dPxl = (gPad->PixeltoY(0)-gPad->PixeltoY(1))/radY;
214 for (Int_t i=0;i<fNvals;++i) {
216
217 if (gIsUptSlice && gCurrent_slice!=i) continue;
218
219 // Angles' values for this slice
220 phimin = fSlices[2*i ]*TMath::Pi()/180.;
221 cphi = fSlices[2*i+1]*TMath::Pi()/180.;
222 phimax = fSlices[2*i+2]*TMath::Pi()/180.;
223
224 Double_t radOffset = fPieSlices[i]->GetRadiusOffset();
225
226 Double_t dx = (xx-fX-radOffset*TMath::Cos(cphi))/radX;
227 Double_t dy = (yy-fY-radOffset*TMath::Sin(cphi)*radXY)/radY;
228
229 if (TMath::Abs(dy)<dPxl) dy = dPxl;
230
231 Double_t ang = TMath::ATan2(dy,dx);
232 if (ang<0) ang += TMath::TwoPi();
233
234 Double_t dist = TMath::Sqrt(dx*dx+dy*dy);
235
236 if ( ((ang>=phimin && ang <= phimax) || (phimax>TMath::TwoPi() &&
237 ang+TMath::TwoPi()>=phimin && ang+TMath::TwoPi()<phimax)) &&
238 dist<=1.) { // if true the pointer is in the slice region
239
240 gCurrent_x = dx;
241 gCurrent_y = dy;
242 gCurrent_ang = ang;
243 gCurrent_phi1 = phimin;
244 gCurrent_phi2 = phimax;
246
247 if (dist<.95 && dist>.65) {
248 Double_t range = phimax-phimin;
249 Double_t lang = ang-phimin;
250 Double_t rang = phimax-ang;
251 if (lang<0) lang += TMath::TwoPi();
252 else if (lang>=TMath::TwoPi()) lang -= TMath::TwoPi();
253 if (rang<0) rang += TMath::TwoPi();
254 else if (rang>=TMath::TwoPi()) rang -= TMath::TwoPi();
255
256 if (lang/range<.25 || rang/range<.25) {
258 result = -1;
259 }
260 else result = i;
261 } else {
262 result = i;
263 }
264
265 break;
266 }
267 }
268 return result;
269}
270
271////////////////////////////////////////////////////////////////////////////////
272/// Draw the pie chart.
273///
274/// The possible options are listed in the TPie::Paint() method.
275
276void TPie::Draw(Option_t *option)
277{
278 TString soption(option);
279 soption.ToLower();
280
281 if (soption.Length()==0) soption = "l";
282
283 if (gPad) {
284 if (!gPad->IsEditable()) gROOT->MakeDefCanvas();
285 if (!soption.Contains("same")) {
286 gPad->Clear();
287 gPad->Range(0.,0.,1.,1.);
288 }
289 }
290
291 for (Int_t i=0;i<fNvals;++i) fPieSlices[i]->AppendPad();
292 AppendPad(soption.Data());
293}
294
295////////////////////////////////////////////////////////////////////////////////
296/// This method is for internal use. It is used by Execute event to draw the
297/// outline of "this" TPie. Used when the opaque movements are not permitted.
298
300{
301 MakeSlices();
302
303 // XY metric
304 Double_t radXY = 1.;
305 if (fIs3D) {
306 radXY = TMath::Sin(fAngle3D/180.*TMath::Pi());
307 }
308
309 for (Int_t i=0;i<fNvals&&fIs3D==kTRUE;++i) {
310 Float_t minphi = (fSlices[i*2]+gAngularOffset+.5)*TMath::Pi()/180.;
311 Float_t avgphi = (fSlices[i*2+1]+gAngularOffset)*TMath::Pi()/180.;
312 Float_t maxphi = (fSlices[i*2+2]+gAngularOffset-.5)*TMath::Pi()/180.;
313
315 Double_t x0 = gX+radOffset*TMath::Cos(avgphi);
316 Double_t y0 = gY+radOffset*TMath::Sin(avgphi)*radXY-fHeight;
317
318 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0), gPad->YtoAbsPixel(y0),
319 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(minphi)),
320 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(minphi)*radXY) );
321
322 Int_t ndiv = 10;
323 Double_t dphi = (maxphi-minphi)/ndiv;
324
325 if (dphi>.15) ndiv = (Int_t) ((maxphi-minphi)/.15);
326 dphi = (maxphi-minphi)/ndiv;
327
328 // Loop to draw the arc
329 for (Int_t j=0;j<ndiv;++j) {
330 Double_t phi = minphi+dphi*j;
331 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(phi)),
332 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(phi)*radXY),
333 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(phi+dphi)),
334 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(phi+dphi)*radXY));
335 }
336
337 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(maxphi)),
338 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(maxphi)*radXY),
339 gPad->XtoAbsPixel(x0), gPad->YtoAbsPixel(y0) );
340
341 gVirtualX->DrawLine(gPad->XtoAbsPixel(x0),
342 gPad->YtoAbsPixel(y0),
343 gPad->XtoAbsPixel(x0),
344 gPad->YtoAbsPixel(y0+fHeight));
345 gVirtualX->DrawLine(gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(minphi)),
346 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(minphi)*radXY),
347 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(minphi)),
348 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(minphi)*radXY+fHeight));
349 gVirtualX->DrawLine(gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(maxphi)),
350 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(maxphi)*radXY),
351 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(maxphi)),
352 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(maxphi)*radXY+fHeight));
353 }
354
355
356 // Loop over slices
357 for (Int_t i=0;i<fNvals;++i) {
358 Float_t minphi = (fSlices[i*2]+gAngularOffset+.5)*TMath::Pi()/180.;
359 Float_t avgphi = (fSlices[i*2+1]+gAngularOffset)*TMath::Pi()/180.;
360 Float_t maxphi = (fSlices[i*2+2]+gAngularOffset-.5)*TMath::Pi()/180.;
361
363 Double_t x0 = gX+radOffset*TMath::Cos(avgphi);
364 Double_t y0 = gY+radOffset*TMath::Sin(avgphi)*radXY;
365
366 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0), gPad->YtoAbsPixel(y0),
367 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(minphi)),
368 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(minphi)*radXY) );
369
370
371 Int_t ndiv = 10;
372 Double_t dphi = (maxphi-minphi)/ndiv;
373
374 if (dphi>.15) ndiv = (Int_t) ((maxphi-minphi)/.15);
375 dphi = (maxphi-minphi)/ndiv;
376
377 // Loop to draw the arc
378 for (Int_t j=0;j<ndiv;++j) {
379 Double_t phi = minphi+dphi*j;
380 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(phi)),
381 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(phi)*radXY),
382 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(phi+dphi)),
383 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(phi+dphi)*radXY));
384 }
385
386 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(maxphi)),
387 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(maxphi)*radXY),
388 gPad->XtoAbsPixel(x0), gPad->YtoAbsPixel(y0) );
389 }
390}
391
392////////////////////////////////////////////////////////////////////////////////
393/// Execute the mouse events.
394
396{
397 if (!gPad) return;
398 if (!gPad->IsEditable() && event != kMouseEnter) return;
399
400 if (gCurrent_slice<=-10) {
401 gPad->SetCursor(kCross);
402 return;
403 }
404
405 MakeSlices();
406
407 static bool isMovingPie(kFALSE);
408 static bool isMovingSlice(kFALSE);
409 static bool isResizing(kFALSE);
410 static bool isRotating(kFALSE);
411 static bool onBorder(kFALSE);
412 bool isRedrawing(kFALSE);
413 static Int_t prev_event(-1);
414 static Int_t oldpx, oldpy;
415
416 // Portion of pie considered as "border"
417 const Double_t dr = gPad->PixeltoX(3);
418 const Double_t minRad = gPad->PixeltoX(10);
419
420 // Angular divisions in radial direction
421 const Double_t angstep1 = 0.5*TMath::PiOver4();
422 const Double_t angstep2 = 1.5*TMath::PiOver4();
423 const Double_t angstep3 = 2.5*TMath::PiOver4();
424 const Double_t angstep4 = 3.5*TMath::PiOver4();
425 const Double_t angstep5 = 4.5*TMath::PiOver4();
426 const Double_t angstep6 = 5.5*TMath::PiOver4();
427 const Double_t angstep7 = 6.5*TMath::PiOver4();
428 const Double_t angstep8 = 7.5*TMath::PiOver4();
429
430 // XY metric
431 Double_t radXY = 1.;
432 if (fIs3D==kTRUE) {
433 radXY = TMath::Sin(fAngle3D/180.*TMath::Pi());
434 }
435
436 Int_t dx, dy;
437 Double_t mdx, mdy;
438
439 switch(event) {
440 case kArrowKeyPress:
441 case kButton1Down:
442 // Change cursor to show pie's movement.
443 gVirtualX->SetLineColor(1);
444 gVirtualX->SetLineWidth(2);
445
446 // Current center and radius.
447 gX = fX;
448 gY = fY;
451 gAngularOffset = 0;
453
454 prev_event = kButton1Down;
455
456 case kMouseMotion:
457 if (gCurrent_rad>=fRadius-2.*dr && gCurrent_rad<=fRadius+dr
458 && !isMovingPie && !isMovingSlice && !isResizing) {
459 if (gCurrent_ang>=angstep8 || gCurrent_ang<angstep1)
460 gPad->SetCursor(kRightSide);
461 else if (gCurrent_ang>=angstep1 && gCurrent_ang<angstep2)
462 gPad->SetCursor(kTopRight);
463 else if (gCurrent_ang>=angstep2 && gCurrent_ang<angstep3)
464 gPad->SetCursor(kTopSide);
465 else if (gCurrent_ang>=angstep3 && gCurrent_ang<angstep4)
466 gPad->SetCursor(kTopLeft);
467 else if (gCurrent_ang>=angstep4 && gCurrent_ang<=angstep5)
468 gPad->SetCursor(kLeftSide);
469 else if (gCurrent_ang>=angstep5 && gCurrent_ang<angstep6)
470 gPad->SetCursor(kBottomLeft);
471 else if (gCurrent_ang>=angstep6 && gCurrent_ang<angstep7)
472 gPad->SetCursor(kBottomSide);
473 else if (gCurrent_ang>=angstep7 && gCurrent_ang<angstep8)
474 gPad->SetCursor(kBottomRight);
475 onBorder = kTRUE;
476 } else {
477 onBorder = kFALSE;
478 if (gCurrent_rad>fRadius*.6) {
479 gPad->SetCursor(kPointer);
480 } else if (gCurrent_rad<=fRadius*.3) {
481 gPad->SetCursor(kHand);
482 } else if (gCurrent_rad<=fRadius*.6 && gCurrent_rad>=fRadius*.3) {
483 gPad->SetCursor(kRotate);
484 }
485 }
486 oldpx = px;
487 oldpy = py;
488 if (isMovingPie || isMovingSlice) gPad->SetCursor(kMove);
489 break;
490
491 case kArrowKeyRelease:
492 case kButton1Motion:
493 if (!isMovingSlice || !isMovingPie || !isResizing || !isRotating) {
494 if (prev_event==kButton1Down) {
495 if (onBorder) {
496 isResizing = kTRUE;
497 } else if (gCurrent_rad>=fRadius*.6 && gCurrent_slice>=0) {
498 isMovingSlice = kTRUE;
499 } else if (gCurrent_rad<=fRadius*.3) {
500 isMovingPie = kTRUE;
501 } else if (gCurrent_rad<fRadius*.6 && gCurrent_rad>fRadius*.3) {
502 isRotating = kTRUE;
503 }
504 }
505 }
506
507 dx = px-oldpx;
508 dy = py-oldpy;
509
510 mdx = gPad->PixeltoX(dx);
511 mdy = gPad->PixeltoY(dy);
512
513 if (isMovingPie || isMovingSlice) {
514 gPad->SetCursor(kMove);
515 if (isMovingSlice) {
516 Float_t avgphi = fSlices[gCurrent_slice*2+1]*TMath::Pi()/180.;
517
518 if (!gPad->OpaqueMoving()) DrawGhost();
519
520 gRadiusOffset += TMath::Cos(avgphi)*mdx +TMath::Sin(avgphi)*mdy/radXY;
521 if (gRadiusOffset<0) gRadiusOffset = .0;
523
524 if (!gPad->OpaqueMoving()) DrawGhost();
525 } else {
526 if (!gPad->OpaqueMoving()) DrawGhost();
527
528 gX += mdx;
529 gY += mdy;
530
531 if (!gPad->OpaqueMoving()) DrawGhost();
532 }
533 } else if (isResizing) {
534 if (!gPad->OpaqueResizing()) DrawGhost();
535
537 if (gRadius+dr1>=minRad) {
538 gRadius += dr1;
539 } else {
540 gRadius = minRad;
541 }
542
543 if (!gPad->OpaqueResizing()) DrawGhost();
544 } else if (isRotating) {
545 if (!gPad->OpaqueMoving()) DrawGhost();
546
547 Double_t xx = gPad->AbsPixeltoX(px);
548 Double_t yy = gPad->AbsPixeltoY(py);
549
550 Double_t dx1 = xx-gX;
551 Double_t dy1 = yy-gY;
552
553 Double_t ang = TMath::ATan2(dy1,dx1);
554 if (ang<0) ang += TMath::TwoPi();
555
557
558 if (!gPad->OpaqueMoving()) DrawGhost();
559 }
560
561 oldpx = px;
562 oldpy = py;
563
564 if ( ((isMovingPie || isMovingSlice || isRotating) && gPad->OpaqueMoving()) ||
565 (isResizing && gPad->OpaqueResizing()) ) {
566 isRedrawing = kTRUE;
567 // event = kButton1Up;
568 // intentionally no break to continue with kButton1Up handling
569 }
570 else break;
571
572 case kButton1Up:
573 if (!isRedrawing) {
574 prev_event = kButton1Up;
576 }
577
578 if (gROOT->IsEscaped()) {
579 gROOT->SetEscape(kFALSE);
581 break;
582 }
583
584 fX = gX;
585 fY = gY;
589
590 if (isRedrawing && (isMovingPie || isMovingSlice)) gPad->SetCursor(kMove);
591
592 if (isMovingPie) isMovingPie = kFALSE;
593 if (isMovingSlice) isMovingSlice = kFALSE;
594 if (isResizing) isResizing = kFALSE;
595 if (isRotating) {
596 isRotating = kFALSE;
597 // this is important mainly when OpaqueMoving==kTRUE
599 }
600
601 gPad->Modified(kTRUE);
602
603
605
606 gVirtualX->SetLineColor(-1);
607 gVirtualX->SetLineWidth(-1);
608
609 break;
610 case kButton1Locate:
611
612 ExecuteEvent(kButton1Down, px, py);
613
614 while (1) {
615 px = py = 0;
616 event = gVirtualX->RequestLocator(1, 1, px, py);
617
619
620 if (event != -1) { // button is released
621 ExecuteEvent(kButton1Up, px, py);
622 return;
623 }
624 }
625 break;
626
627 case kMouseEnter:
628 break;
629
630 default:
631 // unknown event
632 break;
633 }
634}
635
636////////////////////////////////////////////////////////////////////////////////
637/// Returns the label of the entry number "i".
638
640{
641 return GetSlice(i)->GetTitle();
642}
643
644////////////////////////////////////////////////////////////////////////////////
645/// Return the color of the slice number "i".
646
648{
649 return GetSlice(i)->GetFillColor();
650}
651
652////////////////////////////////////////////////////////////////////////////////
653/// Return the style use to fill the slice number "i".
654
656{
657 return GetSlice(i)->GetFillStyle();
658}
659
660////////////////////////////////////////////////////////////////////////////////
661/// Return the line color used to outline thi "i" slice
662
664{
665 return GetSlice(i)->GetLineColor();
666}
667
668////////////////////////////////////////////////////////////////////////////////
669/// Return the style used to outline thi "i" slice
670
672{
673 return GetSlice(i)->GetLineStyle();
674}
675
676////////////////////////////////////////////////////////////////////////////////
677/// Return the line width used to outline thi "i" slice
678
680{
681 return GetSlice(i)->GetLineWidth();
682}
683
684////////////////////////////////////////////////////////////////////////////////
685/// Return the radial offset's value for the slice number "i".
686
688{
689 return GetSlice(i)->GetRadiusOffset();
690}
691
692////////////////////////////////////////////////////////////////////////////////
693/// Return the value associated with the slice number "i".
694
696{
697 return GetSlice(i)->GetValue();
698}
699
700////////////////////////////////////////////////////////////////////////////////
701/// If created before by Paint option or by MakeLegend method return
702/// the pointer to the legend, otherwise return 0;
703
705{
706 return fLegend;
707}
708
709////////////////////////////////////////////////////////////////////////////////
710/// Return the reference to the slice of index 'id'. There are no controls
711/// of memory corruption, be carefull.
712
714{
715 return fPieSlices[id];
716}
717
718////////////////////////////////////////////////////////////////////////////////
719/// Common initialization for all constructors.
720/// This is a private function called to allocate the memory.
721
723{
725
726 fAngularOffset = ao;
727 fX = x;
728 fY = y;
729 fRadius = r;
730 fNvals = np;
731 fSum = 0.;
732 fSlices = 0;
733 fLegend = 0;
734 fHeight = 0.08;
735 fAngle3D = 30;
736 fIs3D = kFALSE;
737
739
741
742 for (Int_t i=0;i<fNvals;++i) {
743 TString tmplbl = "Slice";
744 tmplbl += i;
745 fPieSlices[i] = new TPieSlice(tmplbl.Data(), tmplbl.Data(), this);
751 fPieSlices[i]->SetFillStyle(1001);
752 }
753
754 fLabelFormat = "%txt";
755 fFractionFormat = "%3.2f";
756 fValueFormat = "%4.2f";
757 fPercentFormat = "%3.1f";
758}
759
760////////////////////////////////////////////////////////////////////////////////
761/// This method create a legend that explains the contents
762/// of the slice for this pie-chart.
763///
764/// The parameter passed reppresents the option passed to shown the slices,
765/// see TLegend::AddEntry() for further details.
766///
767/// The pointer of the TLegend is returned.
768
769TLegend* TPie::MakeLegend(Double_t x1, Double_t y1, Double_t x2, Double_t y2, const char *leg_header)
770{
771 if (!fLegend) fLegend = new TLegend(x1,y1,x2,y2,leg_header);
772 else fLegend->Clear();
773
774 for (Int_t i=0;i<fNvals;++i) {
776 }
777
778 if (gPad) fLegend->Draw();
779
780 return fLegend;
781}
782
783////////////////////////////////////////////////////////////////////////////////
784/// Paint a Pie chart in a canvas.
785/// The possible option are:
786///
787/// - "R" Print the labels along the central "R"adius of slices.
788/// - "T" Print the label in a direction "T"angent to circle that describes
789/// the TPie.
790/// - "SC" Paint the the labels with the "S"ame "C"olor as the slices.
791/// - "3D" Draw the pie-chart with a pseudo 3D effect.
792/// - "NOL" No OutLine: Don't draw the slices' outlines, any property over the
793/// slices' line is ignored.
794/// - ">" Sort the slices in increasing order.
795/// - "<" Sort the slices in decreasing order.
796///
797/// After the use of > or < options the internal order of the TPieSlices
798/// is changed.
799///
800/// Other options changing the labels' format are described in
801/// TPie::SetLabelFormat().
802
804{
805 MakeSlices();
806
807 TString soption(option);
808
809 bool optionSame(kFALSE);
810
811 // if true the lines around the slices are drawn, if false not
812 Bool_t optionLine(kTRUE);
813
814 // if true the labels' colors are the same as the slices' colors
815 Bool_t optionSameColor(kFALSE);
816
817 // For the label orientation there are 3 possibilities:
818 // 0: horizontal
819 // 1: radial
820 // 2: tangent
821 Int_t lblor(0);
822
823 // Parse the options
824 Int_t idx;
825 // Paint the TPie in an existing canvas
826 if ( (idx=soption.Index("same"))>=0 ) {
827 optionSame = kTRUE;
828 soption.Remove(idx,4);
829 }
830
831 if ( (idx=soption.Index("nol"))>=0 ) {
832 optionLine = kFALSE;
833 soption.Remove(idx,3);
834 }
835
836 if ( (idx=soption.Index("sc"))>=0 ) {
837 optionSameColor = kTRUE;
838 soption.Remove(idx,2);
839 }
840
841 // check if is active the pseudo-3d
842 if ( (idx=soption.Index("3d"))>=0 ) {
843 fIs3D = kTRUE;
844 soption.Remove(idx,2);
845 } else {
846 fIs3D = kFALSE;
847 }
848
849 // seek if have to draw the labels around the pie chart
850 if ( (idx=soption.Index("t"))>=0 ) {
851 lblor = 2;
852 soption.Remove(idx,1);
853 }
854
855 // Seek if have to paint the labels along the radii
856 if ( (idx=soption.Index("r"))>=0 ) {
857 lblor = 1;
858 soption.Remove(idx,1);
859 }
860
861 // Seeks if has to paint sort the slices in increasing mode
862 if ( (idx=soption.Index(">"))>=0 ) {
864 soption.Remove(idx,1);
865 }
866
867 // Seeks if has to paint sort the slices in decreasing mode
868 if ( (idx=soption.Index("<"))>=0 ) {
870 soption.Remove(idx,1);
871 }
872
873 if (fNvals<=0) {
874 Warning("Paint","No vals");
875 return;
876 }
877
878 if (!fPieSlices) {
879 Warning("Paint","No valid arrays of values");
880 return;
881 }
882
883 // Check if gPad exists and define the drawing range.
884 if (!gPad) return;
885
886 // Objects useful to draw labels and slices
887 TLatex *textlabel = new TLatex();
888 TArc *arc = new TArc();
889 TLine *line = new TLine();
890
891 // XY metric
892 Double_t radX = fRadius;
893 Double_t radY = fRadius;
894 Double_t radXY = 1.;
895
896 if (fIs3D) {
897 radXY = TMath::Sin(fAngle3D/180.*TMath::Pi());
898 radY = fRadius*radXY;
899 }
900
901 // Draw the slices.
902 Int_t pixelHeight = gPad->YtoPixel(0)-gPad->YtoPixel(fHeight);
903 for (Int_t pi=0;pi<pixelHeight&&fIs3D==kTRUE; ++pi) { // loop for pseudo-3d effect
904 for (Int_t i=0;i<fNvals;++i) {
905 // draw the arc
906 // set the color of the next slice
907 if (pi>0) {
908 arc->SetFillStyle(0);
909 arc->SetLineColor(TColor::GetColorDark((fPieSlices[i]->GetFillColor())));
910 } else {
911 arc->SetFillStyle(0);
912 if (optionLine==kTRUE) {
913 arc->SetLineColor(fPieSlices[i]->GetLineColor());
914 arc->SetLineStyle(fPieSlices[i]->GetLineStyle());
915 arc->SetLineWidth(fPieSlices[i]->GetLineWidth());
916 } else {
917 arc->SetLineWidth(1);
918 arc->SetLineColor(TColor::GetColorDark((fPieSlices[i]->GetFillColor())));
919 }
920 }
921 // Paint the slice
922 Float_t aphi = fSlices[2*i+1]*TMath::Pi()/180.;
923
925 Double_t ay = fY+TMath::Sin(aphi)*fPieSlices[i]->GetRadiusOffset()*radXY+gPad->PixeltoY(pixelHeight-pi);
926
927 arc->PaintEllipse(ax, ay, radX, radY, fSlices[2*i],
928 fSlices[2*i+2], 0.);
929
930 if (optionLine==kTRUE) {
931 line->SetLineColor(fPieSlices[i]->GetLineColor());
932 line->SetLineStyle(fPieSlices[i]->GetLineStyle());
933 line->SetLineWidth(fPieSlices[i]->GetLineWidth());
934 line->PaintLine(ax,ay,ax,ay);
935
936 Double_t x0, y0;
937 x0 = ax+radX*TMath::Cos(fSlices[2*i]/180.*TMath::Pi());
938 y0 = ay+radY*TMath::Sin(fSlices[2*i]/180.*TMath::Pi());
939 line->PaintLine(x0,y0,x0,y0);
940
941 x0 = ax+radX*TMath::Cos(fSlices[2*i+2]/180.*TMath::Pi());
942 y0 = ay+radY*TMath::Sin(fSlices[2*i+2]/180.*TMath::Pi());
943 line->PaintLine(x0,y0,x0,y0);
944 }
945 }
946 } // end loop for pseudo-3d effect
947
948 for (Int_t i=0;i<fNvals;++i) { // loop for the piechart
949 // Set the color of the next slice
950 arc->SetFillColor(fPieSlices[i]->GetFillColor());
951 arc->SetFillStyle(fPieSlices[i]->GetFillStyle());
952 if (optionLine==kTRUE) {
953 arc->SetLineColor(fPieSlices[i]->GetLineColor());
954 arc->SetLineStyle(fPieSlices[i]->GetLineStyle());
955 arc->SetLineWidth(fPieSlices[i]->GetLineWidth());
956 } else {
957 arc->SetLineWidth(1);
958 arc->SetLineColor(fPieSlices[i]->GetFillColor());
959 }
960
961 // Paint the slice
962 Float_t aphi = fSlices[2*i+1]*TMath::Pi()/180.;
963
965 Double_t ay = fY+TMath::Sin(aphi)*fPieSlices[i]->GetRadiusOffset()*radXY;
966 arc->PaintEllipse(ax, ay, radX, radY, fSlices[2*i],
967 fSlices[2*i+2], 0.);
968
969 } // end loop to draw the slices
970
971
972 // Set the font
973 textlabel->SetTextFont(GetTextFont());
974 textlabel->SetTextSize(GetTextSize());
975 textlabel->SetTextColor(GetTextColor());
976
977 // Loop to place the labels.
978 for (Int_t i=0;i<fNvals;++i) {
979 Float_t aphi = fSlices[2*i+1]*TMath::Pi()/180.;
980 //aphi = TMath::ATan2(TMath::Sin(aphi)*radXY,TMath::Cos(aphi));
981
982 Float_t label_off = fLabelsOffset;
983
984
985 // Paint the text in the pad
986 TString tmptxt = fLabelFormat;
987
988 tmptxt.ReplaceAll("%txt",fPieSlices[i]->GetTitle());
989 tmptxt.ReplaceAll("%val",Form(fValueFormat.Data(),fPieSlices[i]->GetValue()));
990 tmptxt.ReplaceAll("%frac",Form(fFractionFormat.Data(),fPieSlices[i]->GetValue()/fSum));
991 tmptxt.ReplaceAll("%perc",Form(Form("%s %s",fPercentFormat.Data(),"%s"),(fPieSlices[i]->GetValue()/fSum)*100,"%"));
992
993 textlabel->SetTitle(tmptxt.Data());
994 Double_t h = textlabel->GetYsize();
995 Double_t w = textlabel->GetXsize();
996
997 Float_t lx = fX+(fRadius+fPieSlices[i]->GetRadiusOffset()+label_off)*TMath::Cos(aphi);
998 Float_t ly = fY+(fRadius+fPieSlices[i]->GetRadiusOffset()+label_off)*TMath::Sin(aphi)*radXY;
999
1000 Double_t lblang = 0;
1001
1002 if (lblor==1) { // radial direction for the label
1003 aphi = TMath::ATan2(TMath::Sin(aphi)*radXY,TMath::Cos(aphi));
1004 lblang += aphi;
1005 if (lblang<=0) lblang += TMath::TwoPi();
1006 if (lblang>TMath::TwoPi()) lblang-= TMath::TwoPi();
1007
1008 lx += h/2.*TMath::Sin(lblang);
1009 ly -= h/2.*TMath::Cos(lblang);
1010
1011 // This control prevent text up-side
1012 if (lblang>TMath::PiOver2() && lblang<=3.*TMath::PiOver2()) {
1013 lx += w*TMath::Cos(lblang)-h*TMath::Sin(lblang);
1014 ly += w*TMath::Sin(lblang)+h*TMath::Cos(lblang);
1015 lblang -= TMath::Pi();
1016 }
1017 } else if (lblor==2) { // tangential direction of the labels
1018 aphi -=TMath::PiOver2();
1019 aphi = TMath::ATan2(TMath::Sin(aphi)*radXY,TMath::Cos(aphi));
1020 lblang += aphi;//-TMath::PiOver2();
1021 if (lblang<0) lblang+=TMath::TwoPi();
1022
1023 lx -= w/2.*TMath::Cos(lblang);
1024 ly -= w/2.*TMath::Sin(lblang);
1025
1026 if (lblang>TMath::PiOver2() && lblang<3.*TMath::PiOver2()) {
1027 lx += w*TMath::Cos(lblang)-h*TMath::Sin(lblang);
1028 ly += w*TMath::Sin(lblang)+h*TMath::Cos(lblang);
1029 lblang -= TMath::Pi();
1030 }
1031 } else { // horizontal labels (default direction)
1032 aphi = TMath::ATan2(TMath::Sin(aphi)*radXY,TMath::Cos(aphi));
1033 if (aphi>TMath::PiOver2() || aphi<=-TMath::PiOver2()) lx -= w;
1034 if (aphi<0) ly -= h;
1035 }
1036
1037 Float_t rphi = TMath::ATan2((ly-fY)*radXY,lx-fX);
1038 if (rphi < 0 && fIs3D && label_off>=0.)
1039 ly -= fHeight;
1040
1041 if (optionSameColor) textlabel->SetTextColor((fPieSlices[i]->GetFillColor()));
1042 textlabel->PaintLatex(lx,ly,
1043 lblang*180/TMath::Pi()+GetTextAngle(),
1044 GetTextSize(), tmptxt.Data());
1045 }
1046
1047 delete arc;
1048 delete line;
1049 delete textlabel;
1050
1051 if (optionSame) return;
1052
1053 // Draw title
1054 TPaveText *title = 0;
1055 TObject *obj;
1056 if ((obj = gPad->GetListOfPrimitives()->FindObject("title"))) {
1057 title = dynamic_cast<TPaveText*>(obj);
1058 }
1059
1060 // Check the OptTitle option
1061 if (strlen(GetTitle()) == 0 || gStyle->GetOptTitle() <= 0) {
1062 if (title) delete title;
1063 return;
1064 }
1065
1066 // Height and width of the title
1067 Double_t ht = gStyle->GetTitleH();
1068 Double_t wt = gStyle->GetTitleW();
1069 if (ht<=0) ht = 1.1*gStyle->GetTitleFontSize();
1070 if (ht<=0) ht = 0.05; // minum height
1071 if (wt<=0) { // eval the width of the title
1072 TLatex l;
1073 l.SetTextSize(ht);
1074 l.SetTitle(GetTitle());
1075 // adjustment in case the title has several lines (#splitline)
1076 ht = TMath::Max(ht, 1.2*l.GetYsize()/(gPad->GetY2() - gPad->GetY1()));
1077 Double_t wndc = l.GetXsize()/(gPad->GetX2() - gPad->GetX1());
1078 wt = TMath::Min(0.7, 0.02+wndc);
1079 }
1080
1081 if (title) {
1082 TText *t0 = (TText*)title->GetLine(0);
1083 if (t0) {
1084 if (!strcmp(t0->GetTitle(),GetTitle())) return;
1085 t0->SetTitle(GetTitle());
1086 if (wt > 0) title->SetX2NDC(title->GetX1NDC()+wt);
1087 }
1088 return;
1089 }
1090
1091 Int_t talh = gStyle->GetTitleAlign()/10;
1092 if (talh < 1) talh = 1; else if (talh > 3) talh = 3;
1093 Int_t talv = gStyle->GetTitleAlign()%10;
1094 if (talv < 1) talv = 1; else if (talv > 3) talv = 3;
1095 Double_t xpos, ypos;
1096 xpos = gStyle->GetTitleX();
1097 ypos = gStyle->GetTitleY();
1098 if (talh == 2) xpos = xpos-wt/2.;
1099 if (talh == 3) xpos = xpos-wt;
1100 if (talv == 2) ypos = ypos+ht/2.;
1101 if (talv == 1) ypos = ypos+ht;
1102
1103 title = new TPaveText(xpos,ypos-ht,xpos+wt,ypos,"blNDC");
1106 title->SetName("title");
1107
1110 title->SetTextFont(gStyle->GetTitleFont(""));
1111 if (gStyle->GetTitleFont("")%10 > 2)
1113 title->AddText(GetTitle());
1114
1115 title->SetBit(kCanDelete);
1116
1117 title->Draw();
1118 title->Paint();
1119}
1120
1121////////////////////////////////////////////////////////////////////////////////
1122/// Save primitive as a C++ statement(s) on output stream out
1123
1124void TPie::SavePrimitive(std::ostream &out, Option_t *option)
1125{
1126 out << " " << std::endl;
1127 if (gROOT->ClassSaved(TPie::Class())) {
1128 out << " ";
1129 } else {
1130 out << " TPie *";
1131 }
1132 out << GetName() << " = new TPie(\"" << GetName() << "\", \"" << GetTitle()
1133 << "\", " << fNvals << ");" << std::endl;
1134 out << " " << GetName() << "->SetCircle(" << fX << ", " << fY << ", "
1135 << fRadius << ");" << std::endl;
1136 out << " " << GetName() << "->SetValueFormat(\"" << GetValueFormat()
1137 << "\");" << std::endl;
1138 out << " " << GetName() << "->SetLabelFormat(\"" << GetLabelFormat()
1139 << "\");" << std::endl;
1140 out << " " << GetName() << "->SetPercentFormat(\"" << GetPercentFormat()
1141 << "\");" << std::endl;
1142 out << " " << GetName() << "->SetLabelsOffset(" << GetLabelsOffset()
1143 << ");" << std::endl;
1144 out << " " << GetName() << "->SetAngularOffset(" << GetAngularOffset()
1145 << ");" << std::endl;
1146 out << " " << GetName() << "->SetTextAngle(" << GetTextAngle() << ");" << std::endl;
1147 out << " " << GetName() << "->SetTextColor(" << GetTextColor() << ");" << std::endl;
1148 out << " " << GetName() << "->SetTextFont(" << GetTextFont() << ");" << std::endl;
1149 out << " " << GetName() << "->SetTextSize(" << GetTextSize() << ");" << std::endl;
1150
1151
1152 // Save the values for the slices
1153 for (Int_t i=0;i<fNvals;++i) {
1154 out << " " << GetName() << "->GetSlice(" << i << ")->SetTitle(\""
1155 << fPieSlices[i]->GetTitle() << "\");" << std::endl;
1156 out << " " << GetName() << "->GetSlice(" << i << ")->SetValue("
1157 << fPieSlices[i]->GetValue() << ");" << std::endl;
1158 out << " " << GetName() << "->GetSlice(" << i << ")->SetRadiusOffset("
1159 << fPieSlices[i]->GetRadiusOffset() << ");" << std::endl;
1160 out << " " << GetName() << "->GetSlice(" << i << ")->SetFillColor("
1161 << fPieSlices[i]->GetFillColor() << ");" << std::endl;
1162 out << " " << GetName() << "->GetSlice(" << i << ")->SetFillStyle("
1163 << fPieSlices[i]->GetFillStyle() << ");" << std::endl;
1164 out << " " << GetName() << "->GetSlice(" << i << ")->SetLineColor("
1165 << fPieSlices[i]->GetLineColor() << ");" << std::endl;
1166 out << " " << GetName() << "->GetSlice(" << i << ")->SetLineStyle("
1167 << fPieSlices[i]->GetLineStyle() << ");" << std::endl;
1168 out << " " << GetName() << "->GetSlice(" << i << ")->SetLineWidth("
1169 << fPieSlices[i]->GetLineWidth() << ");" << std::endl;
1170 }
1171
1172 out << " " << GetName() << "->Draw(\"" << option << "\");" << std::endl;
1173}
1174
1175////////////////////////////////////////////////////////////////////////////////
1176/// Set the value of for the pseudo 3D view angle, in degree.
1177/// The range of the permitted values is: [0,90]
1178
1180 // check if val is in the permitted range
1181 while (val>360.) val -= 360.;
1182 while (val<0) val += 360.;
1183 if (val>=90 && val<180) val = 180-val;
1184 else if (val>=180 && val<=360) val = 360-val;
1185
1186 fAngle3D = val;
1187}
1188
1189////////////////////////////////////////////////////////////////////////////////
1190/// Set the global angular offset for slices in degree [0,360]
1191
1193{
1194 fAngularOffset = offset;
1195
1196 while (fAngularOffset>=360.) fAngularOffset -= 360.;
1197 while (fAngularOffset<0.) fAngularOffset += 360.;
1198
1200}
1201
1202////////////////////////////////////////////////////////////////////////////////
1203/// Set the coordinates of the circle that describe the pie:
1204/// - the 1st and the 2nd arguments are the x and y center's coordinates.
1205/// - the 3rd value is the pie-chart's radius.
1206///
1207/// All the coordinates are in NDC space.
1208
1210{
1211 fX = x;
1212 fY = y;
1213 fRadius = rad;
1214}
1215
1216////////////////////////////////////////////////////////////////////////////////
1217/// Set slice number "i" label. The first parameter is the index of the slice,
1218/// the other is the label text.
1219
1220void TPie::SetEntryLabel(Int_t i, const char *text)
1221{
1222 // Set the Label of a single slice
1223 if (i>=0 && i<fNvals) fPieSlices[i]->SetTitle(text);
1224}
1225
1226////////////////////////////////////////////////////////////////////////////////
1227/// Set the color for the slice's outline. "i" is the slice number.
1228
1230{
1231 if (i>=0 && i<fNvals) fPieSlices[i]->SetLineColor(color);
1232}
1233
1234////////////////////////////////////////////////////////////////////////////////
1235/// Set the style for the slice's outline. "i" is the slice number.
1236
1238{
1239 if (i>=0 && i<fNvals) fPieSlices[i]->SetLineStyle(style);
1240}
1241
1242////////////////////////////////////////////////////////////////////////////////
1243/// Set the width of the slice's outline. "i" is the slice number.
1244
1246{
1247 if (i>=0 && i<fNvals) fPieSlices[i]->SetLineWidth(width);
1248}
1249
1250////////////////////////////////////////////////////////////////////////////////
1251/// Set the color for the slice "i".
1252
1254{
1255 if (i>=0 && i<fNvals) fPieSlices[i]->SetFillColor(color);
1256}
1257
1258////////////////////////////////////////////////////////////////////////////////
1259/// Set the fill style for the "i" slice
1260
1262{
1263 if (i>=0 && i<fNvals) fPieSlices[i]->SetFillStyle(style);
1264}
1265
1266////////////////////////////////////////////////////////////////////////////////
1267/// Set the distance, in the direction of the radius of the slice.
1268
1270{
1271 if (i>=0 && i<fNvals) fPieSlices[i]->SetRadiusOffset(shift);
1272}
1273
1274////////////////////////////////////////////////////////////////////////////////
1275/// Set the value of a slice
1276
1278{
1279 if (i>=0 && i<fNvals) fPieSlices[i]->SetValue(val);
1280
1282}
1283
1284////////////////////////////////////////////////////////////////////////////////
1285/// Set the fill colors for all the TPie's slices.
1286
1288{
1289 if (!colors) return;
1290 for (Int_t i=0;i<fNvals;++i) fPieSlices[i]->SetFillColor(colors[i]);
1291}
1292
1293////////////////////////////////////////////////////////////////////////////////
1294/// Set the height, in pixel, for the piechart if is drawn using
1295/// the pseudo-3d mode.
1296///
1297/// The default value is 20 pixel.
1298
1300{
1301 fHeight = val;
1302}
1303
1304////////////////////////////////////////////////////////////////////////////////
1305/// This method is used to customize the label format. The format string
1306/// must contain one of these modifiers:
1307///
1308/// - %txt : to print the text label associated with the slice
1309/// - %val : to print the numeric value of the slice
1310/// - %frac : to print the relative fraction of this slice
1311/// - %perc : to print the % of this slice
1312///
1313/// ex. : mypie->SetLabelFormat("%txt (%frac)");
1314
1315void TPie::SetLabelFormat(const char *fmt)
1316{
1317 fLabelFormat = fmt;
1318}
1319
1320////////////////////////////////////////////////////////////////////////////////
1321/// Set numeric format in the label, is used if the label format
1322/// there is the modifier %frac, in this case the value is printed
1323/// using this format.
1324///
1325/// The numeric format use the standard C modifier used in stdio library:
1326/// %f, %2.1$, %e... for further documentation you can use the printf
1327/// man page ("man 3 printf" on linux)
1328///
1329/// Example:
1330/// ~~~ {.cpp}
1331/// mypie->SetLabelFormat("%txt (%frac)");
1332/// mypie->SetFractionFormat("2.1f");
1333/// ~~~
1334
1335void TPie::SetFractionFormat(const char *fmt)
1336{
1337 fFractionFormat = fmt;
1338}
1339
1340////////////////////////////////////////////////////////////////////////////////
1341/// Set the labels for all the slices.
1342
1343void TPie::SetLabels(const char *lbls[])
1344{
1345 if (!lbls) return;
1346 for (Int_t i=0;i<fNvals;++i) fPieSlices[i]->SetTitle(lbls[i]);
1347}
1348
1349////////////////////////////////////////////////////////////////////////////////
1350/// Set the distance between the label end the external line of the TPie.
1351
1353{
1354 fLabelsOffset = labelsoffset;
1355}
1356
1357////////////////////////////////////////////////////////////////////////////////
1358/// Set the numeric format for the percent value of a slice, default: %3.1f
1359
1360void TPie::SetPercentFormat(const char *fmt)
1361{
1362 fPercentFormat = fmt;
1363}
1364
1365////////////////////////////////////////////////////////////////////////////////
1366/// Set the pie chart's radius' value.
1367
1369{
1370 if (rad>0) {
1371 fRadius = rad;
1372 } else {
1373 Warning("SetRadius",
1374 "It's not possible set the radius to a negative value");
1375 }
1376}
1377
1378////////////////////////////////////////////////////////////////////////////////
1379/// Set the numeric format the slices' values.
1380/// Used by %val (see SetLabelFormat()).
1381
1382void TPie::SetValueFormat(const char *fmt)
1383{
1384 fValueFormat = fmt;
1385}
1386
1387////////////////////////////////////////////////////////////////////////////////
1388/// Set X value.
1389
1391{
1392 fX = x;
1393}
1394
1395////////////////////////////////////////////////////////////////////////////////
1396/// Set Y value.
1397
1399{
1400 fY = y;
1401}
1402
1403////////////////////////////////////////////////////////////////////////////////
1404/// Make the slices.
1405/// If they already exist it does nothing unless force=kTRUE.
1406
1408{
1409 if (fSlices && !force) return;
1410
1411 fSum = .0;
1412
1413 for (Int_t i=0;i<fNvals;++i) {
1414 if (fPieSlices[i]->GetValue()<0) {
1415 Warning("MakeSlices",
1416 "Negative values in TPie, absolute value will be used");
1417 fPieSlices[i]->SetValue(-1.*fPieSlices[i]->GetValue());
1418 }
1419 fSum += fPieSlices[i]->GetValue();
1420 }
1421
1422 if (fSum<=.0) return;
1423
1424 if (!fSlices) fSlices = new Float_t[2*fNvals+1];
1425
1426 // Compute the slices size and position (2 angles for each slice)
1428 for (Int_t i=0;i<fNvals;++i) {
1429 Float_t dphi = fPieSlices[i]->GetValue()/fSum*360.;
1430 fSlices[2*i+1] = fSlices[2*i]+dphi/2.;
1431 fSlices[2*i+2] = fSlices[2*i]+dphi;
1432 }
1433}
1434
1435////////////////////////////////////////////////////////////////////////////////
1436/// This method, mainly intended for internal use, ordered the slices according their values.
1437/// The default (amode=kTRUE) is increasing order, but is also possible in decreasing order (amode=kFALSE).
1438///
1439/// If the merge_threshold>0 the slice that contains a quantity smaller than merge_threshold are merged
1440/// together
1441
1442void TPie::SortSlices(Bool_t amode, Float_t merge_threshold)
1443{
1444
1445 // main loop to order, bubble sort, the array
1446 Bool_t isDone = kFALSE;
1447
1448 while (isDone==kFALSE) {
1449 isDone = kTRUE;
1450
1451 for (Int_t i=0;i<fNvals-1;++i) { // loop over the values
1452 if ( (amode && (fPieSlices[i]->GetValue()>fPieSlices[i+1]->GetValue())) ||
1453 (!amode && (fPieSlices[i]->GetValue()<fPieSlices[i+1]->GetValue()))
1454 )
1455 {
1456 // exchange the order
1457 TPieSlice *tmpcpy = fPieSlices[i];
1458 fPieSlices[i] = fPieSlices[i+1];
1459 fPieSlices[i+1] = tmpcpy;
1460
1461 isDone = kFALSE;
1462 }
1463 } // end loop the values
1464 } // end main ordering loop
1465
1466 if (merge_threshold>0) {
1467 // merge smallest slices
1468 TPieSlice *merged_slice = new TPieSlice("merged","other",this);
1469 merged_slice->SetRadiusOffset(0.);
1470 merged_slice->SetLineColor(1);
1471 merged_slice->SetLineStyle(1);
1472 merged_slice->SetLineWidth(1);
1473 merged_slice->SetFillColor(gStyle->GetColorPalette( (amode ? 0 : fNvals-1) ));
1474 merged_slice->SetFillStyle(1001);
1475
1476 if (amode) {
1477 // search slices under the threshold
1478 Int_t iMerged = 0;
1479 for (;iMerged<fNvals&&fPieSlices[iMerged]->GetValue()<merge_threshold;++iMerged) {
1480 merged_slice->SetValue( merged_slice->GetValue()+fPieSlices[iMerged]->GetValue() );
1481 }
1482
1483 // evaluate number of valid slices
1484 if (iMerged<=1) { // no slices to merge
1485 delete merged_slice;
1486 }
1487 else { // write a new array with the right dimension
1488 Int_t old_fNvals = fNvals;
1489 fNvals = fNvals-iMerged+1;
1490 TPieSlice **new_array = new TPieSlice*[fNvals];
1491 new_array[0] = merged_slice;
1492 for (Int_t i=0;i<old_fNvals;++i) {
1493 if (i<iMerged) delete fPieSlices[i];
1494 else new_array[i-iMerged+1] = fPieSlices[i];
1495 }
1496 delete [] fPieSlices;
1497 fPieSlices = new_array;
1498 }
1499 }
1500 else {
1501 Int_t iMerged = fNvals-1;
1502 for (;iMerged>=0&&fPieSlices[iMerged]->GetValue()<merge_threshold;--iMerged) {
1503 merged_slice->SetValue( merged_slice->GetValue()+fPieSlices[iMerged]->GetValue() );
1504 }
1505
1506 // evaluate number of valid slices
1507 Int_t nMerged = fNvals-1-iMerged;
1508 if (nMerged<=1) { // no slices to merge
1509 delete merged_slice;
1510 }
1511 else { // write a new array with the right dimension
1512 Int_t old_fNvals = fNvals;
1513 fNvals = fNvals-nMerged+1;
1514 TPieSlice **new_array = new TPieSlice*[fNvals];
1515 new_array[fNvals-1] = merged_slice;
1516 for (Int_t i=old_fNvals-1;i>=0;--i) {
1517 if (i>iMerged) delete fPieSlices[i];
1518 else new_array[i-nMerged-1] = fPieSlices[i];
1519 }
1520 delete [] fPieSlices;
1521 fPieSlices = new_array;
1522 }
1523
1524 }
1525 }
1526
1528}
1529
@ kMouseMotion
Definition: Buttons.h:23
@ kArrowKeyRelease
Definition: Buttons.h:21
@ kButton1Motion
Definition: Buttons.h:20
@ kButton1Up
Definition: Buttons.h:19
@ kArrowKeyPress
Definition: Buttons.h:21
@ kButton1Down
Definition: Buttons.h:17
@ kButton1Locate
Definition: Buttons.h:22
@ kMouseEnter
Definition: Buttons.h:23
void Class()
Definition: Class.C:29
@ kRightSide
Definition: GuiTypes.h:373
@ kBottomSide
Definition: GuiTypes.h:373
@ kTopLeft
Definition: GuiTypes.h:372
@ kBottomRight
Definition: GuiTypes.h:372
@ kTopSide
Definition: GuiTypes.h:373
@ kLeftSide
Definition: GuiTypes.h:373
@ kMove
Definition: GuiTypes.h:374
@ kTopRight
Definition: GuiTypes.h:372
@ kBottomLeft
Definition: GuiTypes.h:372
@ kHand
Definition: GuiTypes.h:374
@ kCross
Definition: GuiTypes.h:374
@ kRotate
Definition: GuiTypes.h:374
@ kPointer
Definition: GuiTypes.h:375
ROOT::R::TRInterface & r
Definition: Object.C:4
#define h(i)
Definition: RSha256.hxx:106
static const double x2[5]
static const double x1[5]
int Int_t
Definition: RtypesCore.h:45
const Bool_t kFALSE
Definition: RtypesCore.h:101
bool Bool_t
Definition: RtypesCore.h:63
double Double_t
Definition: RtypesCore.h:59
float Float_t
Definition: RtypesCore.h:57
const Bool_t kTRUE
Definition: RtypesCore.h:100
const char Option_t
Definition: RtypesCore.h:66
#define ClassImp(name)
Definition: Rtypes.h:364
include TDocParser_001 C image html pict1_TDocParser_001 png width
Definition: TDocParser.cxx:121
XFontStruct * id
Definition: TGX11.cxx:109
char name[80]
Definition: TGX11.cxx:110
Double_t gCurrent_ang
Definition: TPie.cxx:57
Double_t gX
Definition: TPie.cxx:43
Double_t gCurrent_phi1
Definition: TPie.cxx:51
Double_t gCurrent_phi2
Definition: TPie.cxx:52
Double_t gCurrent_y
Definition: TPie.cxx:56
Double_t gRadiusOffset
Definition: TPie.cxx:46
Double_t gAngularOffset
Definition: TPie.cxx:47
Double_t gCurrent_x
Definition: TPie.cxx:55
Double_t gCurrent_rad
Definition: TPie.cxx:53
Double_t gRadius
Definition: TPie.cxx:45
Int_t gCurrent_slice
Definition: TPie.cxx:50
Bool_t gIsUptSlice
Definition: TPie.cxx:48
Double_t gY
Definition: TPie.cxx:44
#define gROOT
Definition: TROOT.h:404
char * Form(const char *fmt,...)
R__EXTERN TStyle * gStyle
Definition: TStyle.h:412
#define gPad
Definition: TVirtualPad.h:287
#define gVirtualX
Definition: TVirtualX.h:338
Color * colors
Definition: X3DBuffer.c:21
Create an Arc.
Definition: TArc.h:26
virtual Color_t GetLabelColor() const
Definition: TAttAxis.h:38
virtual Style_t GetLabelFont() const
Definition: TAttAxis.h:39
virtual Float_t GetLabelSize() const
Definition: TAttAxis.h:41
virtual Color_t GetFillColor() const
Return the fill area color.
Definition: TAttFill.h:30
virtual Style_t GetFillStyle() const
Return the fill area style.
Definition: TAttFill.h:31
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Definition: TAttFill.h:37
virtual void SetFillStyle(Style_t fstyle)
Set the fill area style.
Definition: TAttFill.h:39
virtual Color_t GetLineColor() const
Return the line color.
Definition: TAttLine.h:33
virtual void SetLineStyle(Style_t lstyle)
Set the line style.
Definition: TAttLine.h:42
virtual Width_t GetLineWidth() const
Return the line width.
Definition: TAttLine.h:35
virtual void SetLineWidth(Width_t lwidth)
Set the line width.
Definition: TAttLine.h:43
virtual void SetLineColor(Color_t lcolor)
Set the line color.
Definition: TAttLine.h:40
virtual Style_t GetLineStyle() const
Return the line style.
Definition: TAttLine.h:34
Text Attributes class.
Definition: TAttText.h:18
virtual Float_t GetTextSize() const
Return the text size.
Definition: TAttText.h:36
virtual Font_t GetTextFont() const
Return the text font.
Definition: TAttText.h:35
virtual Color_t GetTextColor() const
Return the text color.
Definition: TAttText.h:34
virtual Float_t GetTextAngle() const
Return the text angle.
Definition: TAttText.h:33
virtual void SetTextColor(Color_t tcolor=1)
Set the text color.
Definition: TAttText.h:43
virtual void SetTextFont(Font_t tfont=62)
Set the text font.
Definition: TAttText.h:45
virtual void SetTextSize(Float_t tsize=1)
Set the text size.
Definition: TAttText.h:46
Class to manage histogram axis.
Definition: TAxis.h:30
const char * GetBinLabel(Int_t bin) const
Return label for bin.
Definition: TAxis.cxx:440
Int_t GetLast() const
Return last bin on the axis i.e.
Definition: TAxis.cxx:469
Int_t GetFirst() const
Return first bin on the axis i.e.
Definition: TAxis.cxx:458
THashList * GetLabels() const
Definition: TAxis.h:117
static Int_t GetColorDark(Int_t color)
Static function: Returns the dark color number corresponding to n If the TColor object does not exist...
Definition: TColor.cxx:1954
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.
Definition: TEllipse.cxx:528
TH1 is the base class of all histogram classes in ROOT.
Definition: TH1.h:58
To draw Mathematical Formula.
Definition: TLatex.h:18
Double_t GetXsize()
Return size of the formula along X in pad coordinates.
Definition: TLatex.cxx:2536
Double_t GetYsize()
Return size of the formula along Y in pad coordinates.
Definition: TLatex.cxx:2623
virtual void PaintLatex(Double_t x, Double_t y, Double_t angle, Double_t size, const char *text)
Main drawing function.
Definition: TLatex.cxx:2065
This class displays a legend box (TPaveText) containing several legend entries.
Definition: TLegend.h:23
virtual void Clear(Option_t *option="")
Clear all entries in this legend, including the header.
Definition: TLegend.cxx:390
TLegendEntry * AddEntry(const TObject *obj, const char *label="", Option_t *option="lpf")
Add a new entry to this legend.
Definition: TLegend.cxx:330
virtual void Draw(Option_t *option="")
Draw this legend with its current attributes.
Definition: TLegend.cxx:423
Use the TLine constructor to create a simple line.
Definition: TLine.h:22
virtual void PaintLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2)
Draw this line with new coordinates.
Definition: TLine.cxx:397
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
virtual void SetTitle(const char *title="")
Set the title of the TNamed.
Definition: TNamed.cxx:164
virtual const char * GetTitle() const
Returns title of object.
Definition: TNamed.h:48
virtual const char * GetName() const
Returns name of object.
Definition: TNamed.h:47
Mother of all ROOT objects.
Definition: TObject.h:37
virtual void Warning(const char *method, const char *msgfmt,...) const
Issue warning message.
Definition: TObject.cxx:879
virtual void AppendPad(Option_t *option="")
Append graphics object to current pad.
Definition: TObject.cxx:107
void SetBit(UInt_t f, Bool_t set)
Set or unset the user status bits as specified in f.
Definition: TObject.cxx:696
@ kCanDelete
if object in a list can be deleted
Definition: TObject.h:58
A Pave (see TPave) with text, lines or/and boxes inside.
Definition: TPaveText.h:21
virtual TText * AddText(Double_t x1, Double_t y1, const char *label)
Add a new Text line to this pavetext at given coordinates.
Definition: TPaveText.cxx:183
virtual void Draw(Option_t *option="")
Draw this pavetext with its current attributes.
Definition: TPaveText.cxx:234
virtual void Paint(Option_t *option="")
Paint this pavetext with its current attributes.
Definition: TPaveText.cxx:409
virtual TText * GetLine(Int_t number) const
Get Pointer to line number in this pavetext.
Definition: TPaveText.cxx:275
virtual void SetName(const char *name="")
Definition: TPave.h:75
virtual void SetBorderSize(Int_t bordersize=4)
Definition: TPave.h:73
Double_t GetX1NDC() const
Definition: TPave.h:59
virtual void SetX2NDC(Double_t x2)
Definition: TPave.h:79
A slice of a piechart, see the TPie class.
Definition: TPieSlice.h:18
void SetValue(Double_t)
Set the value for this slice.
Definition: TPieSlice.cxx:101
void SetIsActive(Bool_t is)
Definition: TPieSlice.h:37
void SetRadiusOffset(Double_t)
Set the radial offset of this slice.
Definition: TPieSlice.cxx:91
Double_t GetRadiusOffset()
return the value of the offset in radial direction for this slice.
Definition: TPieSlice.cxx:68
Double_t GetValue()
Return the value of this slice.
Definition: TPieSlice.cxx:76
Draw a Pie Chart,.
Definition: TPie.h:23
void SetEntryVal(Int_t, Double_t)
Set the value of a slice.
Definition: TPie.cxx:1277
TPieSlice * GetSlice(Int_t i)
Return the reference to the slice of index 'id'.
Definition: TPie.cxx:713
Float_t fLabelsOffset
LabelsOffset offset of label.
Definition: TPie.h:37
void SetAngularOffset(Double_t)
Set the global angular offset for slices in degree [0,360].
Definition: TPie.cxx:1192
Double_t GetEntryVal(Int_t)
Return the value associated with the slice number "i".
Definition: TPie.cxx:695
TString fLabelFormat
Format format of the slices' label.
Definition: TPie.h:38
Float_t * fSlices
!Subdivisions of the slices
Definition: TPie.h:29
void SetX(Double_t)
Set X value.
Definition: TPie.cxx:1390
Double_t fAngularOffset
Offset angular offset for the first slice.
Definition: TPie.h:36
void SortSlices(Bool_t amode=kTRUE, Float_t merge_thresold=.0)
This method, mainly intended for internal use, ordered the slices according their values.
Definition: TPie.cxx:1442
void SetEntryFillStyle(Int_t, Int_t)
Set the fill style for the "i" slice.
Definition: TPie.cxx:1261
TPie()
Default constructor.
Definition: TPie.cxx:63
void SetFractionFormat(const char *)
Set numeric format in the label, is used if the label format there is the modifier frac,...
Definition: TPie.cxx:1335
Float_t fAngle3D
The angle of the pseudo-3d view.
Definition: TPie.h:46
Double_t fHeight
Height of the slice in pixel.
Definition: TPie.h:45
const char * GetPercentFormat()
Definition: TPie.h:77
~TPie()
Destructor.
Definition: TPie.cxx:156
void SetPercentFormat(const char *)
Set the numeric format for the percent value of a slice, default: %3.1f.
Definition: TPie.cxx:1360
void SetLabels(const char *[])
Set the labels for all the slices.
Definition: TPie.cxx:1343
void SetY(Double_t)
Set Y value.
Definition: TPie.cxx:1398
TLegend * GetLegend()
If created before by Paint option or by MakeLegend method return the pointer to the legend,...
Definition: TPie.cxx:704
Bool_t fIs3D
! true if the pseudo-3d is enabled
Definition: TPie.h:44
void Init(Int_t np, Double_t ao, Double_t x, Double_t y, Double_t r)
Common initialization for all constructors.
Definition: TPie.cxx:722
Int_t GetEntryFillColor(Int_t)
Return the color of the slice number "i".
Definition: TPie.cxx:647
void SetLabelsOffset(Float_t)
Set the distance between the label end the external line of the TPie.
Definition: TPie.cxx:1352
virtual void Draw(Option_t *option="l")
Draw the pie chart.
Definition: TPie.cxx:276
void SetEntryRadiusOffset(Int_t, Double_t)
Set the distance, in the direction of the radius of the slice.
Definition: TPie.cxx:1269
Double_t GetAngularOffset()
Definition: TPie.h:62
void SavePrimitive(std::ostream &out, Option_t *opts="")
Save primitive as a C++ statement(s) on output stream out.
Definition: TPie.cxx:1124
void DrawGhost()
This method is for internal use.
Definition: TPie.cxx:299
Float_t GetLabelsOffset()
Definition: TPie.h:74
TLegend * fLegend
!Legend for this piechart
Definition: TPie.h:30
void SetLabelFormat(const char *)
This method is used to customize the label format.
Definition: TPie.cxx:1315
Double_t fRadius
Radius Pie radius.
Definition: TPie.h:35
TPieSlice ** fPieSlices
[fNvals] Slice array of this pie-chart
Definition: TPie.h:43
void SetEntryLineStyle(Int_t, Int_t)
Set the style for the slice's outline. "i" is the slice number.
Definition: TPie.cxx:1237
void MakeSlices(Bool_t force=kFALSE)
Make the slices.
Definition: TPie.cxx:1407
void SetEntryFillColor(Int_t, Int_t)
Set the color for the slice "i".
Definition: TPie.cxx:1253
void SetEntryLineWidth(Int_t, Int_t)
Set the width of the slice's outline. "i" is the slice number.
Definition: TPie.cxx:1245
const char * GetLabelFormat()
Definition: TPie.h:73
void SetCircle(Double_t x=.5, Double_t y=.5, Double_t rad=.4)
Set the coordinates of the circle that describe the pie:
Definition: TPie.cxx:1209
const char * GetEntryLabel(Int_t)
Returns the label of the entry number "i".
Definition: TPie.cxx:639
TString fValueFormat
Vform numeric format for the value.
Definition: TPie.h:39
TString fFractionFormat
Rform numeric format for the fraction of a slice.
Definition: TPie.h:40
virtual void Paint(Option_t *)
Paint a Pie chart in a canvas.
Definition: TPie.cxx:803
void SetAngle3D(Float_t val=30.)
Set the value of for the pseudo 3D view angle, in degree.
Definition: TPie.cxx:1179
Double_t GetEntryRadiusOffset(Int_t)
Return the radial offset's value for the slice number "i".
Definition: TPie.cxx:687
Int_t GetEntryFillStyle(Int_t)
Return the style use to fill the slice number "i".
Definition: TPie.cxx:655
const char * GetValueFormat()
Definition: TPie.h:80
void SetRadius(Double_t)
Set the pie chart's radius' value.
Definition: TPie.cxx:1368
TString fPercentFormat
Pfrom numeric format for the percent of a slice.
Definition: TPie.h:41
TLegend * MakeLegend(Double_t x1=.65, Double_t y1=.65, Double_t x2=.95, Double_t y2=.95, const char *leg_header="")
This method create a legend that explains the contents of the slice for this pie-chart.
Definition: TPie.cxx:769
virtual void ExecuteEvent(Int_t, Int_t, Int_t)
Execute the mouse events.
Definition: TPie.cxx:395
Int_t fNvals
Number of elements.
Definition: TPie.h:42
Int_t DistancetoSlice(Int_t, Int_t)
Returns the slice number at the pixel position (px,py).
Definition: TPie.cxx:190
Int_t GetEntryLineStyle(Int_t)
Return the style used to outline thi "i" slice.
Definition: TPie.cxx:671
Float_t fSum
!Sum for the slice values
Definition: TPie.h:28
Double_t fY
Y coordinate of the pie centre.
Definition: TPie.h:34
void SetEntryLabel(Int_t, const char *text="Slice")
Set slice number "i" label.
Definition: TPie.cxx:1220
Double_t fX
X coordinate of the pie centre.
Definition: TPie.h:33
void SetHeight(Double_t val=.08)
Set the height, in pixel, for the piechart if is drawn using the pseudo-3d mode.
Definition: TPie.cxx:1299
Int_t GetEntryLineWidth(Int_t)
Return the line width used to outline thi "i" slice.
Definition: TPie.cxx:679
Int_t GetEntryLineColor(Int_t)
Return the line color used to outline thi "i" slice.
Definition: TPie.cxx:663
void SetValueFormat(const char *)
Set the numeric format the slices' values.
Definition: TPie.cxx:1382
void SetEntryLineColor(Int_t, Int_t)
Set the color for the slice's outline. "i" is the slice number.
Definition: TPie.cxx:1229
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
Evaluate the distance to the chart in gPad.
Definition: TPie.cxx:170
void SetFillColors(Int_t *)
Set the fill colors for all the TPie's slices.
Definition: TPie.cxx:1287
Basic string class.
Definition: TString.h:136
Ssiz_t Length() const
Definition: TString.h:410
void ToLower()
Change string to lower-case.
Definition: TString.cxx:1150
const char * Data() const
Definition: TString.h:369
TString & ReplaceAll(const TString &s1, const TString &s2)
Definition: TString.h:692
TString & Remove(Ssiz_t pos)
Definition: TString.h:673
Bool_t Contains(const char *pat, ECaseCompare cmp=kExact) const
Definition: TString.h:624
Ssiz_t Index(const char *pat, Ssiz_t i=0, ECaseCompare cmp=kExact) const
Definition: TString.h:639
Float_t GetTitleX() const
Definition: TStyle.h:271
Int_t GetOptTitle() const
Definition: TStyle.h:237
Float_t GetTitleY() const
Definition: TStyle.h:272
Style_t GetTitleFont(Option_t *axis="X") const
Return title font.
Definition: TStyle.cxx:1164
Color_t GetTitleFillColor() const
Definition: TStyle.h:262
Style_t GetTitleStyle() const
Definition: TStyle.h:264
Float_t GetLabelOffset(Option_t *axis="X") const
Return label offset.
Definition: TStyle.cxx:1088
Width_t GetTitleBorderSize() const
Definition: TStyle.h:266
Int_t GetColorPalette(Int_t i) const
Return color number i in current palette.
Definition: TStyle.cxx:1056
Int_t GetTitleAlign()
Definition: TStyle.h:261
Color_t GetTitleTextColor() const
Definition: TStyle.h:263
Float_t GetTitleH() const
Definition: TStyle.h:274
Float_t GetTitleFontSize() const
Definition: TStyle.h:265
Float_t GetTitleW() const
Definition: TStyle.h:273
Base class for several text objects.
Definition: TText.h:22
TText * text
TLine * line
h1 SetFillColor(kGreen)
Double_t y[n]
Definition: legend1.C:17
Double_t x[n]
Definition: legend1.C:17
double dist(Rotation3D const &r1, Rotation3D const &r2)
Definition: 3DDistances.cxx:48
static constexpr double rad
static constexpr double pi
Short_t Max(Short_t a, Short_t b)
Definition: TMathBase.h:208
constexpr Double_t PiOver2()
Definition: TMath.h:51
Double_t ATan2(Double_t y, Double_t x)
Definition: TMath.h:679
Double_t Sqrt(Double_t x)
Definition: TMath.h:691
Short_t Min(Short_t a, Short_t b)
Definition: TMathBase.h:176
constexpr Double_t PiOver4()
Definition: TMath.h:58
Double_t Cos(Double_t)
Definition: TMath.h:643
constexpr Double_t Pi()
Definition: TMath.h:37
Double_t Sin(Double_t)
Definition: TMath.h:639
Short_t Abs(Short_t d)
Definition: TMathBase.h:120
constexpr Double_t TwoPi()
Definition: TMath.h:44
Definition: first.py:1
TCanvas * style()
Definition: style.C:1
auto * l
Definition: textangle.C:4