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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 cpy.fPieSlices[i]->Copy(*fPieSlices[i]);
150}
151
152////////////////////////////////////////////////////////////////////////////////
153/// Destructor.
154
156{
157 if (fNvals>0) {
158 for (int i=0; i<fNvals; ++i) delete fPieSlices[i];
159 delete [] fPieSlices;
160 }
161
162 if (fSlices) delete [] fSlices;
163 if (fLegend) delete fLegend;
164}
165
166////////////////////////////////////////////////////////////////////////////////
167/// Evaluate the distance to the chart in gPad.
168
170{
171 Int_t dist = 9999;
172
174 if ( gCurrent_slice>=0 ) {
175 if (gCurrent_rad<=fRadius) {
176 dist = 0;
177 }
178 }
179
180 return dist;
181}
182
183////////////////////////////////////////////////////////////////////////////////
184/// Returns the slice number at the pixel position (px,py).
185/// Returns -1 if no slice is picked.
186///
187/// Used by DistancetoPrimitive.
188
190{
191 MakeSlices();
192
193 Int_t result(-1);
194
195 // coordinates
196 Double_t xx = gPad->AbsPixeltoX(px); //gPad->PadtoX(gPad->AbsPixeltoX(px));
197 Double_t yy = gPad->AbsPixeltoY(py); //gPad->PadtoY(gPad->AbsPixeltoY(py));
198
199 // XY metric
200 Double_t radX = fRadius;
201 Double_t radY = fRadius;
202 Double_t radXY = 1.;
203 if (fIs3D) {
204 radXY = TMath::Sin(fAngle3D/180.*TMath::Pi());
205 radY = radXY*radX;
206 }
207
208 Double_t phimin;
209 Double_t cphi;
210 Double_t phimax;
211
212 Float_t dPxl = (gPad->PixeltoY(0)-gPad->PixeltoY(1))/radY;
213 for (Int_t i=0;i<fNvals;++i) {
215
216 if (gIsUptSlice && gCurrent_slice!=i) continue;
217
218 // Angles' values for this slice
219 phimin = fSlices[2*i ]*TMath::Pi()/180.;
220 cphi = fSlices[2*i+1]*TMath::Pi()/180.;
221 phimax = fSlices[2*i+2]*TMath::Pi()/180.;
222
223 Double_t radOffset = fPieSlices[i]->GetRadiusOffset();
224
225 Double_t dx = (xx-fX-radOffset*TMath::Cos(cphi))/radX;
226 Double_t dy = (yy-fY-radOffset*TMath::Sin(cphi)*radXY)/radY;
227
228 if (TMath::Abs(dy)<dPxl) dy = dPxl;
229
230 Double_t ang = TMath::ATan2(dy,dx);
231 if (ang<0) ang += TMath::TwoPi();
232
233 Double_t dist = TMath::Sqrt(dx*dx+dy*dy);
234
235 if ( ((ang>=phimin && ang <= phimax) || (phimax>TMath::TwoPi() &&
236 ang+TMath::TwoPi()>=phimin && ang+TMath::TwoPi()<phimax)) &&
237 dist<=1.) { // if true the pointer is in the slice region
238
239 gCurrent_x = dx;
240 gCurrent_y = dy;
241 gCurrent_ang = ang;
242 gCurrent_phi1 = phimin;
243 gCurrent_phi2 = phimax;
245
246 if (dist<.95 && dist>.65) {
247 Double_t range = phimax-phimin;
248 Double_t lang = ang-phimin;
249 Double_t rang = phimax-ang;
250 if (lang<0) lang += TMath::TwoPi();
251 else if (lang>=TMath::TwoPi()) lang -= TMath::TwoPi();
252 if (rang<0) rang += TMath::TwoPi();
253 else if (rang>=TMath::TwoPi()) rang -= TMath::TwoPi();
254
255 if (lang/range<.25 || rang/range<.25) {
257 result = -1;
258 }
259 else result = i;
260 } else {
261 result = i;
262 }
263
264 break;
265 }
266 }
267 return result;
268}
269
270////////////////////////////////////////////////////////////////////////////////
271/// Draw the pie chart.
272///
273/// The possible options are listed in the TPie::Paint() method.
274
276{
277 TString soption(option);
278 soption.ToLower();
279
280 if (soption.Length()==0) soption = "l";
281
282 if (gPad) {
283 if (!gPad->IsEditable()) gROOT->MakeDefCanvas();
284 if (!soption.Contains("same")) {
285 gPad->Clear();
286 gPad->Range(0.,0.,1.,1.);
287 }
288 }
289
290 for (Int_t i=0;i<fNvals;++i) fPieSlices[i]->AppendPad();
291 AppendPad(soption.Data());
292}
293
294////////////////////////////////////////////////////////////////////////////////
295/// This method is for internal use. It is used by Execute event to draw the
296/// outline of "this" TPie. Used when the opaque movements are not permitted.
297
299{
300 MakeSlices();
301
302 // XY metric
303 Double_t radXY = 1.;
304 if (fIs3D) {
305 radXY = TMath::Sin(fAngle3D/180.*TMath::Pi());
306 }
307
308 for (Int_t i = 0; i < fNvals && fIs3D;++i) {
309 Float_t minphi = (fSlices[i*2]+gAngularOffset+.5)*TMath::Pi()/180.;
310 Float_t avgphi = (fSlices[i*2+1]+gAngularOffset)*TMath::Pi()/180.;
311 Float_t maxphi = (fSlices[i*2+2]+gAngularOffset-.5)*TMath::Pi()/180.;
312
314 Double_t x0 = gX+radOffset*TMath::Cos(avgphi);
315 Double_t y0 = gY+radOffset*TMath::Sin(avgphi)*radXY-fHeight;
316
317 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0), gPad->YtoAbsPixel(y0),
318 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(minphi)),
319 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(minphi)*radXY) );
320
321 Int_t ndiv = 10;
322 Double_t dphi = (maxphi-minphi)/ndiv;
323
324 if (dphi>.15) ndiv = (Int_t) ((maxphi-minphi)/.15);
325 dphi = (maxphi-minphi)/ndiv;
326
327 // Loop to draw the arc
328 for (Int_t j=0;j<ndiv;++j) {
329 Double_t phi = minphi+dphi*j;
330 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(phi)),
331 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(phi)*radXY),
332 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(phi+dphi)),
333 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(phi+dphi)*radXY));
334 }
335
336 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(maxphi)),
337 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(maxphi)*radXY),
338 gPad->XtoAbsPixel(x0), gPad->YtoAbsPixel(y0) );
339
340 gVirtualX->DrawLine(gPad->XtoAbsPixel(x0),
341 gPad->YtoAbsPixel(y0),
342 gPad->XtoAbsPixel(x0),
343 gPad->YtoAbsPixel(y0+fHeight));
344 gVirtualX->DrawLine(gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(minphi)),
345 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(minphi)*radXY),
346 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(minphi)),
347 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(minphi)*radXY+fHeight));
348 gVirtualX->DrawLine(gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(maxphi)),
349 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(maxphi)*radXY),
350 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(maxphi)),
351 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(maxphi)*radXY+fHeight));
352 }
353
354
355 // Loop over slices
356 for (Int_t i=0;i<fNvals;++i) {
357 Float_t minphi = (fSlices[i*2]+gAngularOffset+.5)*TMath::Pi()/180.;
358 Float_t avgphi = (fSlices[i*2+1]+gAngularOffset)*TMath::Pi()/180.;
359 Float_t maxphi = (fSlices[i*2+2]+gAngularOffset-.5)*TMath::Pi()/180.;
360
362 Double_t x0 = gX+radOffset*TMath::Cos(avgphi);
363 Double_t y0 = gY+radOffset*TMath::Sin(avgphi)*radXY;
364
365 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0), gPad->YtoAbsPixel(y0),
366 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(minphi)),
367 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(minphi)*radXY) );
368
369
370 Int_t ndiv = 10;
371 Double_t dphi = (maxphi-minphi)/ndiv;
372
373 if (dphi>.15) ndiv = (Int_t) ((maxphi-minphi)/.15);
374 dphi = (maxphi-minphi)/ndiv;
375
376 // Loop to draw the arc
377 for (Int_t j=0;j<ndiv;++j) {
378 Double_t phi = minphi+dphi*j;
379 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(phi)),
380 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(phi)*radXY),
381 gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(phi+dphi)),
382 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(phi+dphi)*radXY));
383 }
384
385 gVirtualX->DrawLine( gPad->XtoAbsPixel(x0+gRadius*TMath::Cos(maxphi)),
386 gPad->YtoAbsPixel(y0+gRadius*TMath::Sin(maxphi)*radXY),
387 gPad->XtoAbsPixel(x0), gPad->YtoAbsPixel(y0) );
388 }
389}
390
391////////////////////////////////////////////////////////////////////////////////
392/// Execute the mouse events.
393
395{
396 if (!gPad) return;
397 if (!gPad->IsEditable() && event != kMouseEnter) return;
398
399 if (gCurrent_slice<=-10) {
400 gPad->SetCursor(kCross);
401 return;
402 }
403
404 MakeSlices();
405
406 static bool isMovingPie(kFALSE);
407 static bool isMovingSlice(kFALSE);
408 static bool isResizing(kFALSE);
409 static bool isRotating(kFALSE);
410 static bool onBorder(kFALSE);
411 bool isRedrawing(kFALSE);
412 static Int_t prev_event(-1);
413 static Int_t oldpx, oldpy;
414
415 // Portion of pie considered as "border"
416 const Double_t dr = gPad->PixeltoX(3);
417 const Double_t minRad = gPad->PixeltoX(10);
418
419 // Angular divisions in radial direction
420 const Double_t angstep1 = 0.5*TMath::PiOver4();
421 const Double_t angstep2 = 1.5*TMath::PiOver4();
422 const Double_t angstep3 = 2.5*TMath::PiOver4();
423 const Double_t angstep4 = 3.5*TMath::PiOver4();
424 const Double_t angstep5 = 4.5*TMath::PiOver4();
425 const Double_t angstep6 = 5.5*TMath::PiOver4();
426 const Double_t angstep7 = 6.5*TMath::PiOver4();
427 const Double_t angstep8 = 7.5*TMath::PiOver4();
428
429 // XY metric
430 Double_t radXY = 1.;
431 if (fIs3D) {
432 radXY = TMath::Sin(fAngle3D/180.*TMath::Pi());
433 }
434
435 Int_t dx, dy;
436 Double_t mdx, mdy;
437
438 switch(event) {
439 case kArrowKeyPress:
440 case kButton1Down:
441 // Change cursor to show pie's movement.
442 gVirtualX->SetLineColor(1);
443 gVirtualX->SetLineWidth(2);
444
445 // Current center and radius.
446 gX = fX;
447 gY = fY;
450 gAngularOffset = 0;
452
453 prev_event = kButton1Down;
454
455 case kMouseMotion:
456 if (gCurrent_rad>=fRadius-2.*dr && gCurrent_rad<=fRadius+dr
457 && !isMovingPie && !isMovingSlice && !isResizing) {
458 if (gCurrent_ang>=angstep8 || gCurrent_ang<angstep1)
459 gPad->SetCursor(kRightSide);
460 else if (gCurrent_ang>=angstep1 && gCurrent_ang<angstep2)
461 gPad->SetCursor(kTopRight);
462 else if (gCurrent_ang>=angstep2 && gCurrent_ang<angstep3)
463 gPad->SetCursor(kTopSide);
464 else if (gCurrent_ang>=angstep3 && gCurrent_ang<angstep4)
465 gPad->SetCursor(kTopLeft);
466 else if (gCurrent_ang>=angstep4 && gCurrent_ang<=angstep5)
467 gPad->SetCursor(kLeftSide);
468 else if (gCurrent_ang>=angstep5 && gCurrent_ang<angstep6)
469 gPad->SetCursor(kBottomLeft);
470 else if (gCurrent_ang>=angstep6 && gCurrent_ang<angstep7)
471 gPad->SetCursor(kBottomSide);
472 else if (gCurrent_ang>=angstep7 && gCurrent_ang<angstep8)
473 gPad->SetCursor(kBottomRight);
474 onBorder = kTRUE;
475 } else {
476 onBorder = kFALSE;
477 if (gCurrent_rad>fRadius*.6) {
478 gPad->SetCursor(kPointer);
479 } else if (gCurrent_rad<=fRadius*.3) {
480 gPad->SetCursor(kHand);
481 } else if (gCurrent_rad<=fRadius*.6 && gCurrent_rad>=fRadius*.3) {
482 gPad->SetCursor(kRotate);
483 }
484 }
485 oldpx = px;
486 oldpy = py;
487 if (isMovingPie || isMovingSlice) gPad->SetCursor(kMove);
488 break;
489
490 case kArrowKeyRelease:
491 case kButton1Motion:
492 if (!isMovingSlice || !isMovingPie || !isResizing || !isRotating) {
493 if (prev_event==kButton1Down) {
494 if (onBorder) {
495 isResizing = kTRUE;
496 } else if (gCurrent_rad>=fRadius*.6 && gCurrent_slice>=0) {
497 isMovingSlice = kTRUE;
498 } else if (gCurrent_rad<=fRadius*.3) {
499 isMovingPie = kTRUE;
500 } else if (gCurrent_rad<fRadius*.6 && gCurrent_rad>fRadius*.3) {
501 isRotating = kTRUE;
502 }
503 }
504 }
505
506 dx = px-oldpx;
507 dy = py-oldpy;
508
509 mdx = gPad->PixeltoX(dx);
510 mdy = gPad->PixeltoY(dy);
511
512 if (isMovingPie || isMovingSlice) {
513 gPad->SetCursor(kMove);
514 if (isMovingSlice) {
515 Float_t avgphi = fSlices[gCurrent_slice*2+1]*TMath::Pi()/180.;
516
517 if (!gPad->OpaqueMoving()) DrawGhost();
518
519 gRadiusOffset += TMath::Cos(avgphi)*mdx +TMath::Sin(avgphi)*mdy/radXY;
520 if (gRadiusOffset<0) gRadiusOffset = .0;
522
523 if (!gPad->OpaqueMoving()) DrawGhost();
524 } else {
525 if (!gPad->OpaqueMoving()) DrawGhost();
526
527 gX += mdx;
528 gY += mdy;
529
530 if (!gPad->OpaqueMoving()) DrawGhost();
531 }
532 } else if (isResizing) {
533 if (!gPad->OpaqueResizing()) DrawGhost();
534
536 if (gRadius+dr1>=minRad) {
537 gRadius += dr1;
538 } else {
539 gRadius = minRad;
540 }
541
542 if (!gPad->OpaqueResizing()) DrawGhost();
543 } else if (isRotating) {
544 if (!gPad->OpaqueMoving()) DrawGhost();
545
546 Double_t xx = gPad->AbsPixeltoX(px);
547 Double_t yy = gPad->AbsPixeltoY(py);
548
549 Double_t dx1 = xx-gX;
550 Double_t dy1 = yy-gY;
551
552 Double_t ang = TMath::ATan2(dy1,dx1);
553 if (ang<0) ang += TMath::TwoPi();
554
556
557 if (!gPad->OpaqueMoving()) DrawGhost();
558 }
559
560 oldpx = px;
561 oldpy = py;
562
563 if ( ((isMovingPie || isMovingSlice || isRotating) && gPad->OpaqueMoving()) ||
564 (isResizing && gPad->OpaqueResizing()) ) {
565 isRedrawing = kTRUE;
566 // event = kButton1Up;
567 // intentionally no break to continue with kButton1Up handling
568 }
569 else break;
570
571 case kButton1Up:
572 if (!isRedrawing) {
573 prev_event = kButton1Up;
575 }
576
577 if (gROOT->IsEscaped()) {
578 gROOT->SetEscape(kFALSE);
580 break;
581 }
582
583 fX = gX;
584 fY = gY;
588
589 if (isRedrawing && (isMovingPie || isMovingSlice)) gPad->SetCursor(kMove);
590
591 if (isMovingPie) isMovingPie = kFALSE;
592 if (isMovingSlice) isMovingSlice = kFALSE;
593 if (isResizing) isResizing = kFALSE;
594 if (isRotating) {
595 isRotating = kFALSE;
596 // this is important mainly when OpaqueMoving == kTRUE
598 }
599
600 gPad->Modified(kTRUE);
601
602
604
605 gVirtualX->SetLineColor(-1);
606 gVirtualX->SetLineWidth(-1);
607
608 break;
609 case kButton1Locate:
610
611 ExecuteEvent(kButton1Down, px, py);
612
613 while (1) {
614 px = py = 0;
615 event = gVirtualX->RequestLocator(1, 1, px, py);
616
618
619 if (event != -1) { // button is released
620 ExecuteEvent(kButton1Up, px, py);
621 return;
622 }
623 }
624 break;
625
626 case kMouseEnter:
627 break;
628
629 default:
630 // unknown event
631 break;
632 }
633}
634
635////////////////////////////////////////////////////////////////////////////////
636/// Returns the label of the entry number "i".
637
639{
640 return GetSlice(i)->GetTitle();
641}
642
643////////////////////////////////////////////////////////////////////////////////
644/// Return the color of the slice number "i".
645
647{
648 return GetSlice(i)->GetFillColor();
649}
650
651////////////////////////////////////////////////////////////////////////////////
652/// Return the style use to fill the slice number "i".
653
655{
656 return GetSlice(i)->GetFillStyle();
657}
658
659////////////////////////////////////////////////////////////////////////////////
660/// Return the line color used to outline thi "i" slice
661
663{
664 return GetSlice(i)->GetLineColor();
665}
666
667////////////////////////////////////////////////////////////////////////////////
668/// Return the style used to outline thi "i" slice
669
671{
672 return GetSlice(i)->GetLineStyle();
673}
674
675////////////////////////////////////////////////////////////////////////////////
676/// Return the line width used to outline thi "i" slice
677
679{
680 return GetSlice(i)->GetLineWidth();
681}
682
683////////////////////////////////////////////////////////////////////////////////
684/// Return the radial offset's value for the slice number "i".
685
687{
688 return GetSlice(i)->GetRadiusOffset();
689}
690
691////////////////////////////////////////////////////////////////////////////////
692/// Return the value associated with the slice number "i".
693
695{
696 return GetSlice(i)->GetValue();
697}
698
699////////////////////////////////////////////////////////////////////////////////
700/// If created before by Paint option or by MakeLegend method return
701/// the pointer to the legend, otherwise return 0;
702
704{
705 return fLegend;
706}
707
708////////////////////////////////////////////////////////////////////////////////
709/// Return the reference to the slice of index 'id'. There are no controls
710/// of memory corruption, be carefull.
711
713{
714 return fPieSlices[id];
715}
716
717////////////////////////////////////////////////////////////////////////////////
718/// Common initialization for all constructors.
719/// This is a private function called to allocate the memory.
720
722{
724
725 fAngularOffset = ao;
726 fX = x;
727 fY = y;
728 fRadius = r;
729 fNvals = np;
730 fSum = 0.;
731 fSlices = 0;
732 fLegend = 0;
733 fHeight = 0.08;
734 fAngle3D = 30;
735 fIs3D = kFALSE;
736
738
740
741 for (Int_t i=0;i<fNvals;++i) {
742 TString tmplbl = "Slice";
743 tmplbl += i;
744 fPieSlices[i] = new TPieSlice(tmplbl.Data(), tmplbl.Data(), this);
750 fPieSlices[i]->SetFillStyle(1001);
751 }
752
753 fLabelFormat = "%txt";
754 fFractionFormat = "%3.2f";
755 fValueFormat = "%4.2f";
756 fPercentFormat = "%3.1f";
757}
758
759////////////////////////////////////////////////////////////////////////////////
760/// This method create a legend that explains the contents
761/// of the slice for this pie-chart.
762///
763/// The parameter passed reppresents the option passed to shown the slices,
764/// see TLegend::AddEntry() for further details.
765///
766/// The pointer of the TLegend is returned.
767
769{
770 if (!fLegend) fLegend = new TLegend(x1,y1,x2,y2,leg_header);
771 else fLegend->Clear();
772
773 for (Int_t i=0;i<fNvals;++i) {
775 }
776
777 if (gPad) fLegend->Draw();
778
779 return fLegend;
780}
781
782////////////////////////////////////////////////////////////////////////////////
783/// Paint a Pie chart in a canvas.
784/// The possible option are:
785///
786/// - "R" Print the labels along the central "R"adius of slices.
787/// - "T" Print the label in a direction "T"angent to circle that describes
788/// the TPie.
789/// - "SC" Paint the labels with the "S"ame "C"olor as the slices.
790/// - "3D" Draw the pie-chart with a pseudo 3D effect.
791/// - "NOL" No OutLine: Don't draw the slices' outlines, any property over the
792/// slices' line is ignored.
793/// - ">" Sort the slices in increasing order.
794/// - "<" Sort the slices in decreasing order.
795///
796/// After the use of > or < options the internal order of the TPieSlices
797/// is changed.
798///
799/// Other options changing the labels' format are described in
800/// TPie::SetLabelFormat().
801
803{
804 MakeSlices();
805
806 TString soption(option);
807
808 Bool_t optionSame = kFALSE;
809
810 // if true the lines around the slices are drawn, if false not
811 Bool_t optionLine = kTRUE;
812
813 // if true the labels' colors are the same as the slices' colors
814 Bool_t optionSameColor = kFALSE;
815
816 // For the label orientation there are 3 possibilities:
817 // 0: horizontal
818 // 1: radial
819 // 2: tangent
820 Int_t lblor = 0;
821
822 // Parse the options
823 Int_t idx;
824 // Paint the TPie in an existing canvas
825 if ( (idx=soption.Index("same"))>=0 ) {
826 optionSame = kTRUE;
827 soption.Remove(idx,4);
828 }
829
830 if ( (idx=soption.Index("nol"))>=0 ) {
831 optionLine = kFALSE;
832 soption.Remove(idx,3);
833 }
834
835 if ( (idx=soption.Index("sc"))>=0 ) {
836 optionSameColor = kTRUE;
837 soption.Remove(idx,2);
838 }
839
840 // check if is active the pseudo-3d
841 if ( (idx=soption.Index("3d"))>=0 ) {
842 fIs3D = kTRUE;
843 soption.Remove(idx,2);
844 } else {
845 fIs3D = kFALSE;
846 }
847
848 // seek if have to draw the labels around the pie chart
849 if ( (idx=soption.Index("t"))>=0 ) {
850 lblor = 2;
851 soption.Remove(idx,1);
852 }
853
854 // Seek if have to paint the labels along the radii
855 if ( (idx=soption.Index("r"))>=0 ) {
856 lblor = 1;
857 soption.Remove(idx,1);
858 }
859
860 // Seeks if has to paint sort the slices in increasing mode
861 if ( (idx=soption.Index(">"))>=0 ) {
863 soption.Remove(idx,1);
864 }
865
866 // Seeks if has to paint sort the slices in decreasing mode
867 if ( (idx=soption.Index("<"))>=0 ) {
869 soption.Remove(idx,1);
870 }
871
872 if (fNvals<=0) {
873 Warning("Paint","No vals");
874 return;
875 }
876
877 if (!fPieSlices) {
878 Warning("Paint","No valid arrays of values");
879 return;
880 }
881
882 // Check if gPad exists and define the drawing range.
883 if (!gPad) return;
884
885 // Objects useful to draw labels and slices
886 TLatex textlabel;
887 TArc arc;
888 TLine line;
889
890 // XY metric
891 Double_t radX = fRadius;
892 Double_t radY = fRadius;
893 Double_t radXY = 1.;
894
895 if (fIs3D) {
896 radXY = TMath::Sin(fAngle3D/180.*TMath::Pi());
897 radY = fRadius*radXY;
898 }
899
900 // Draw the slices.
901 Int_t pixelHeight = gPad->YtoPixel(0)-gPad->YtoPixel(fHeight);
902 for (Int_t pi = 0; pi < pixelHeight && fIs3D; ++pi) { // loop for pseudo-3d effect
903 for (Int_t i=0;i<fNvals;++i) {
904 // draw the arc
905 // set the color of the next slice
906 if (pi>0) {
907 arc.SetFillStyle(0);
908 arc.SetLineColor(TColor::GetColorDark((fPieSlices[i]->GetFillColor())));
909 } else {
910 arc.SetFillStyle(0);
911 if (optionLine) {
912 arc.SetLineColor(fPieSlices[i]->GetLineColor());
913 arc.SetLineStyle(fPieSlices[i]->GetLineStyle());
914 arc.SetLineWidth(fPieSlices[i]->GetLineWidth());
915 } else {
916 arc.SetLineWidth(1);
917 arc.SetLineColor(TColor::GetColorDark((fPieSlices[i]->GetFillColor())));
918 }
919 }
920 // Paint the slice
921 Float_t aphi = fSlices[2*i+1]*TMath::Pi()/180.;
922
924 Double_t ay = fY+TMath::Sin(aphi)*fPieSlices[i]->GetRadiusOffset()*radXY+gPad->PixeltoY(pixelHeight-pi);
925
926 arc.PaintEllipse(ax, ay, radX, radY, fSlices[2*i],
927 fSlices[2*i+2], 0.);
928
929 if (optionLine) {
930 line.SetLineColor(fPieSlices[i]->GetLineColor());
931 line.SetLineStyle(fPieSlices[i]->GetLineStyle());
932 line.SetLineWidth(fPieSlices[i]->GetLineWidth());
933 line.PaintLine(ax,ay,ax,ay);
934
935 Double_t x0, y0;
936 x0 = ax+radX*TMath::Cos(fSlices[2*i]/180.*TMath::Pi());
937 y0 = ay+radY*TMath::Sin(fSlices[2*i]/180.*TMath::Pi());
938 line.PaintLine(x0,y0,x0,y0);
939
940 x0 = ax+radX*TMath::Cos(fSlices[2*i+2]/180.*TMath::Pi());
941 y0 = ay+radY*TMath::Sin(fSlices[2*i+2]/180.*TMath::Pi());
942 line.PaintLine(x0,y0,x0,y0);
943 }
944 }
945 } // end loop for pseudo-3d effect
946
947 for (Int_t i=0;i<fNvals;++i) { // loop for the piechart
948 // Set the color of the next slice
949 arc.SetFillColor(fPieSlices[i]->GetFillColor());
950 arc.SetFillStyle(fPieSlices[i]->GetFillStyle());
951 if (optionLine) {
952 arc.SetLineColor(fPieSlices[i]->GetLineColor());
953 arc.SetLineStyle(fPieSlices[i]->GetLineStyle());
954 arc.SetLineWidth(fPieSlices[i]->GetLineWidth());
955 } else {
956 arc.SetLineWidth(1);
957 arc.SetLineColor(fPieSlices[i]->GetFillColor());
958 }
959
960 // Paint the slice
961 Float_t aphi = fSlices[2*i+1]*TMath::Pi()/180.;
962
964 Double_t ay = fY+TMath::Sin(aphi)*fPieSlices[i]->GetRadiusOffset()*radXY;
965 arc.PaintEllipse(ax, ay, radX, radY, fSlices[2*i],
966 fSlices[2*i+2], 0.);
967
968 } // end loop to draw the slices
969
970
971 // Set the font
972 textlabel.SetTextFont(GetTextFont());
973 textlabel.SetTextSize(GetTextSize());
974 textlabel.SetTextColor(GetTextColor());
975
976 // Loop to place the labels.
977 for (Int_t i=0;i<fNvals;++i) {
978 Float_t aphi = fSlices[2*i+1]*TMath::Pi()/180.;
979 //aphi = TMath::ATan2(TMath::Sin(aphi)*radXY,TMath::Cos(aphi));
980
981 Float_t label_off = fLabelsOffset;
982
983
984 // Paint the text in the pad
985 TString tmptxt = fLabelFormat;
986
987 tmptxt.ReplaceAll("%txt",fPieSlices[i]->GetTitle());
988 tmptxt.ReplaceAll("%val",Form(fValueFormat.Data(),fPieSlices[i]->GetValue()));
989 tmptxt.ReplaceAll("%frac",Form(fFractionFormat.Data(),fPieSlices[i]->GetValue()/fSum));
990 tmptxt.ReplaceAll("%perc",Form(Form("%s %s",fPercentFormat.Data(),"%s"),(fPieSlices[i]->GetValue()/fSum)*100,"%"));
991
992 textlabel.SetTitle(tmptxt.Data());
993 Double_t h = textlabel.GetYsize();
994 Double_t w = textlabel.GetXsize();
995
996 Float_t lx = fX+(fRadius+fPieSlices[i]->GetRadiusOffset()+label_off)*TMath::Cos(aphi);
997 Float_t ly = fY+(fRadius+fPieSlices[i]->GetRadiusOffset()+label_off)*TMath::Sin(aphi)*radXY;
998
999 Double_t lblang = 0;
1000
1001 if (lblor==1) { // radial direction for the label
1002 aphi = TMath::ATan2(TMath::Sin(aphi)*radXY,TMath::Cos(aphi));
1003 lblang += aphi;
1004 if (lblang<=0) lblang += TMath::TwoPi();
1005 if (lblang>TMath::TwoPi()) lblang-= TMath::TwoPi();
1006
1007 lx += h/2.*TMath::Sin(lblang);
1008 ly -= h/2.*TMath::Cos(lblang);
1009
1010 // This control prevent text up-side
1011 if (lblang>TMath::PiOver2() && lblang<=3.*TMath::PiOver2()) {
1012 lx += w*TMath::Cos(lblang)-h*TMath::Sin(lblang);
1013 ly += w*TMath::Sin(lblang)+h*TMath::Cos(lblang);
1014 lblang -= TMath::Pi();
1015 }
1016 } else if (lblor==2) { // tangential direction of the labels
1017 aphi -=TMath::PiOver2();
1018 aphi = TMath::ATan2(TMath::Sin(aphi)*radXY,TMath::Cos(aphi));
1019 lblang += aphi;//-TMath::PiOver2();
1020 if (lblang<0) lblang+=TMath::TwoPi();
1021
1022 lx -= w/2.*TMath::Cos(lblang);
1023 ly -= w/2.*TMath::Sin(lblang);
1024
1025 if (lblang>TMath::PiOver2() && lblang<3.*TMath::PiOver2()) {
1026 lx += w*TMath::Cos(lblang)-h*TMath::Sin(lblang);
1027 ly += w*TMath::Sin(lblang)+h*TMath::Cos(lblang);
1028 lblang -= TMath::Pi();
1029 }
1030 } else { // horizontal labels (default direction)
1031 aphi = TMath::ATan2(TMath::Sin(aphi)*radXY,TMath::Cos(aphi));
1032 if (aphi>TMath::PiOver2() || aphi<=-TMath::PiOver2()) lx -= w;
1033 if (aphi<0) ly -= h;
1034 }
1035
1036 Float_t rphi = TMath::ATan2((ly-fY)*radXY,lx-fX);
1037 if (rphi < 0 && fIs3D && label_off>=0.)
1038 ly -= fHeight;
1039
1040 if (optionSameColor) textlabel.SetTextColor((fPieSlices[i]->GetFillColor()));
1041 textlabel.PaintLatex(lx,ly,
1042 lblang*180/TMath::Pi()+GetTextAngle(),
1043 GetTextSize(), tmptxt.Data());
1044 }
1045
1046 if (optionSame) return;
1047
1048 // Draw title
1049 TPaveText *title = nullptr;
1050 if (auto obj = gPad->GetListOfPrimitives()->FindObject("title")) {
1051 title = dynamic_cast<TPaveText*>(obj);
1052 }
1053
1054 // Check the OptTitle option
1055 if (strlen(GetTitle()) == 0 || gStyle->GetOptTitle() <= 0) {
1056 if (title) delete title;
1057 return;
1058 }
1059
1060 // Height and width of the title
1061 Double_t ht = gStyle->GetTitleH();
1062 Double_t wt = gStyle->GetTitleW();
1063 if (ht<=0) ht = 1.1*gStyle->GetTitleFontSize();
1064 if (ht<=0) ht = 0.05; // minum height
1065 if (wt<=0) { // eval the width of the title
1066 TLatex l;
1067 l.SetTextSize(ht);
1068 l.SetTitle(GetTitle());
1069 // adjustment in case the title has several lines (#splitline)
1070 ht = TMath::Max(ht, 1.2*l.GetYsize()/(gPad->GetY2() - gPad->GetY1()));
1071 Double_t wndc = l.GetXsize()/(gPad->GetX2() - gPad->GetX1());
1072 wt = TMath::Min(0.7, 0.02+wndc);
1073 }
1074
1075 if (title) {
1076 TText *t0 = (TText*)title->GetLine(0);
1077 if (t0) {
1078 if (!strcmp(t0->GetTitle(),GetTitle())) return;
1079 t0->SetTitle(GetTitle());
1080 if (wt > 0) title->SetX2NDC(title->GetX1NDC()+wt);
1081 }
1082 return;
1083 }
1084
1085 Int_t talh = gStyle->GetTitleAlign()/10;
1086 if (talh < 1) talh = 1; else if (talh > 3) talh = 3;
1087 Int_t talv = gStyle->GetTitleAlign()%10;
1088 if (talv < 1) talv = 1; else if (talv > 3) talv = 3;
1090 xpos = gStyle->GetTitleX();
1091 ypos = gStyle->GetTitleY();
1092 if (talh == 2) xpos = xpos-wt/2.;
1093 if (talh == 3) xpos = xpos-wt;
1094 if (talv == 2) ypos = ypos+ht/2.;
1095 if (talv == 1) ypos = ypos+ht;
1096
1097 title = new TPaveText(xpos,ypos-ht,xpos+wt,ypos,"blNDC");
1100 title->SetName("title");
1101
1104 title->SetTextFont(gStyle->GetTitleFont(""));
1105 if (gStyle->GetTitleFont("")%10 > 2)
1107 title->AddText(GetTitle());
1108
1109 title->SetBit(kCanDelete);
1110
1111 title->Draw();
1112 title->Paint();
1113}
1114
1115////////////////////////////////////////////////////////////////////////////////
1116/// Save primitive as a C++ statement(s) on output stream out
1117
1118void TPie::SavePrimitive(std::ostream &out, Option_t *option)
1119{
1120 out << " " << std::endl;
1121 if (gROOT->ClassSaved(TPie::Class())) {
1122 out << " ";
1123 } else {
1124 out << " TPie *";
1125 }
1126 out << GetName() << " = new TPie(\"" << GetName() << "\", \"" << GetTitle()
1127 << "\", " << fNvals << ");" << std::endl;
1128 out << " " << GetName() << "->SetCircle(" << fX << ", " << fY << ", "
1129 << fRadius << ");" << std::endl;
1130 out << " " << GetName() << "->SetValueFormat(\"" << GetValueFormat()
1131 << "\");" << std::endl;
1132 out << " " << GetName() << "->SetLabelFormat(\"" << GetLabelFormat()
1133 << "\");" << std::endl;
1134 out << " " << GetName() << "->SetPercentFormat(\"" << GetPercentFormat()
1135 << "\");" << std::endl;
1136 out << " " << GetName() << "->SetLabelsOffset(" << GetLabelsOffset()
1137 << ");" << std::endl;
1138 out << " " << GetName() << "->SetAngularOffset(" << GetAngularOffset()
1139 << ");" << std::endl;
1140 out << " " << GetName() << "->SetTextAngle(" << GetTextAngle() << ");" << std::endl;
1141 out << " " << GetName() << "->SetTextColor(" << GetTextColor() << ");" << std::endl;
1142 out << " " << GetName() << "->SetTextFont(" << GetTextFont() << ");" << std::endl;
1143 out << " " << GetName() << "->SetTextSize(" << GetTextSize() << ");" << std::endl;
1144
1145
1146 // Save the values for the slices
1147 for (Int_t i=0;i<fNvals;++i) {
1148 out << " " << GetName() << "->GetSlice(" << i << ")->SetTitle(\""
1149 << fPieSlices[i]->GetTitle() << "\");" << std::endl;
1150 out << " " << GetName() << "->GetSlice(" << i << ")->SetValue("
1151 << fPieSlices[i]->GetValue() << ");" << std::endl;
1152 out << " " << GetName() << "->GetSlice(" << i << ")->SetRadiusOffset("
1153 << fPieSlices[i]->GetRadiusOffset() << ");" << std::endl;
1154 out << " " << GetName() << "->GetSlice(" << i << ")->SetFillColor("
1155 << fPieSlices[i]->GetFillColor() << ");" << std::endl;
1156 out << " " << GetName() << "->GetSlice(" << i << ")->SetFillStyle("
1157 << fPieSlices[i]->GetFillStyle() << ");" << std::endl;
1158 out << " " << GetName() << "->GetSlice(" << i << ")->SetLineColor("
1159 << fPieSlices[i]->GetLineColor() << ");" << std::endl;
1160 out << " " << GetName() << "->GetSlice(" << i << ")->SetLineStyle("
1161 << fPieSlices[i]->GetLineStyle() << ");" << std::endl;
1162 out << " " << GetName() << "->GetSlice(" << i << ")->SetLineWidth("
1163 << fPieSlices[i]->GetLineWidth() << ");" << std::endl;
1164 }
1165
1166 out << " " << GetName() << "->Draw(\"" << option << "\");" << std::endl;
1167}
1168
1169////////////////////////////////////////////////////////////////////////////////
1170/// Set the value of for the pseudo 3D view angle, in degree.
1171/// The range of the permitted values is: [0,90]
1172
1174 // check if val is in the permitted range
1175 while (val>360.) val -= 360.;
1176 while (val<0) val += 360.;
1177 if (val>=90 && val<180) val = 180-val;
1178 else if (val>=180 && val<=360) val = 360-val;
1179
1180 fAngle3D = val;
1181}
1182
1183////////////////////////////////////////////////////////////////////////////////
1184/// Set the global angular offset for slices in degree [0,360]
1185
1187{
1189
1190 while (fAngularOffset>=360.) fAngularOffset -= 360.;
1191 while (fAngularOffset<0.) fAngularOffset += 360.;
1192
1194}
1195
1196////////////////////////////////////////////////////////////////////////////////
1197/// Set the coordinates of the circle that describe the pie:
1198/// - the 1st and the 2nd arguments are the x and y center's coordinates.
1199/// - the 3rd value is the pie-chart's radius.
1200///
1201/// All the coordinates are in NDC space.
1202
1204{
1205 fX = x;
1206 fY = y;
1207 fRadius = rad;
1208}
1209
1210////////////////////////////////////////////////////////////////////////////////
1211/// Set slice number "i" label. The first parameter is the index of the slice,
1212/// the other is the label text.
1213
1214void TPie::SetEntryLabel(Int_t i, const char *text)
1215{
1216 // Set the Label of a single slice
1217 if (i>=0 && i<fNvals) fPieSlices[i]->SetTitle(text);
1218}
1219
1220////////////////////////////////////////////////////////////////////////////////
1221/// Set the color for the slice's outline. "i" is the slice number.
1222
1224{
1225 if (i>=0 && i<fNvals) fPieSlices[i]->SetLineColor(color);
1226}
1227
1228////////////////////////////////////////////////////////////////////////////////
1229/// Set the style for the slice's outline. "i" is the slice number.
1230
1232{
1233 if (i>=0 && i<fNvals) fPieSlices[i]->SetLineStyle(style);
1234}
1235
1236////////////////////////////////////////////////////////////////////////////////
1237/// Set the width of the slice's outline. "i" is the slice number.
1238
1240{
1241 if (i>=0 && i<fNvals) fPieSlices[i]->SetLineWidth(width);
1242}
1243
1244////////////////////////////////////////////////////////////////////////////////
1245/// Set the color for the slice "i".
1246
1248{
1249 if (i>=0 && i<fNvals) fPieSlices[i]->SetFillColor(color);
1250}
1251
1252////////////////////////////////////////////////////////////////////////////////
1253/// Set the fill style for the "i" slice
1254
1256{
1257 if (i>=0 && i<fNvals) fPieSlices[i]->SetFillStyle(style);
1258}
1259
1260////////////////////////////////////////////////////////////////////////////////
1261/// Set the distance, in the direction of the radius of the slice.
1262
1264{
1265 if (i>=0 && i<fNvals) fPieSlices[i]->SetRadiusOffset(shift);
1266}
1267
1268////////////////////////////////////////////////////////////////////////////////
1269/// Set the value of a slice
1270
1272{
1273 if (i>=0 && i<fNvals) fPieSlices[i]->SetValue(val);
1274
1276}
1277
1278////////////////////////////////////////////////////////////////////////////////
1279/// Set the fill colors for all the TPie's slices.
1280
1282{
1283 if (!colors) return;
1284 for (Int_t i=0;i<fNvals;++i) fPieSlices[i]->SetFillColor(colors[i]);
1285}
1286
1287////////////////////////////////////////////////////////////////////////////////
1288/// Set the height, in pixel, for the piechart if is drawn using
1289/// the pseudo-3d mode.
1290///
1291/// The default value is 20 pixel.
1292
1294{
1295 fHeight = val;
1296}
1297
1298////////////////////////////////////////////////////////////////////////////////
1299/// This method is used to customize the label format. The format string
1300/// must contain one of these modifiers:
1301///
1302/// - %txt : to print the text label associated with the slice
1303/// - %val : to print the numeric value of the slice
1304/// - %frac : to print the relative fraction of this slice
1305/// - %perc : to print the % of this slice
1306///
1307/// ex. : mypie->SetLabelFormat("%txt (%frac)");
1308
1309void TPie::SetLabelFormat(const char *fmt)
1310{
1311 fLabelFormat = fmt;
1312}
1313
1314////////////////////////////////////////////////////////////////////////////////
1315/// Set numeric format in the label, is used if the label format
1316/// there is the modifier %frac, in this case the value is printed
1317/// using this format.
1318///
1319/// The numeric format use the standard C modifier used in stdio library:
1320/// %f, %2.1$, %e... for further documentation you can use the printf
1321/// man page ("man 3 printf" on linux)
1322///
1323/// Example:
1324/// ~~~ {.cpp}
1325/// mypie->SetLabelFormat("%txt (%frac)");
1326/// mypie->SetFractionFormat("2.1f");
1327/// ~~~
1328
1329void TPie::SetFractionFormat(const char *fmt)
1330{
1331 fFractionFormat = fmt;
1332}
1333
1334////////////////////////////////////////////////////////////////////////////////
1335/// Set the labels for all the slices.
1336
1337void TPie::SetLabels(const char *lbls[])
1338{
1339 if (!lbls) return;
1340 for (Int_t i=0;i<fNvals;++i) fPieSlices[i]->SetTitle(lbls[i]);
1341}
1342
1343////////////////////////////////////////////////////////////////////////////////
1344/// Set the distance between the label end the external line of the TPie.
1345
1347{
1348 fLabelsOffset = labelsoffset;
1349}
1350
1351////////////////////////////////////////////////////////////////////////////////
1352/// Set the numeric format for the percent value of a slice, default: %3.1f
1353
1354void TPie::SetPercentFormat(const char *fmt)
1355{
1356 fPercentFormat = fmt;
1357}
1358
1359////////////////////////////////////////////////////////////////////////////////
1360/// Set the pie chart's radius' value.
1361
1363{
1364 if (rad>0) {
1365 fRadius = rad;
1366 } else {
1367 Warning("SetRadius",
1368 "It's not possible set the radius to a negative value");
1369 }
1370}
1371
1372////////////////////////////////////////////////////////////////////////////////
1373/// Set the numeric format the slices' values.
1374/// Used by %val (see SetLabelFormat()).
1375
1376void TPie::SetValueFormat(const char *fmt)
1377{
1378 fValueFormat = fmt;
1379}
1380
1381////////////////////////////////////////////////////////////////////////////////
1382/// Set X value.
1383
1385{
1386 fX = x;
1387}
1388
1389////////////////////////////////////////////////////////////////////////////////
1390/// Set Y value.
1391
1393{
1394 fY = y;
1395}
1396
1397////////////////////////////////////////////////////////////////////////////////
1398/// Make the slices.
1399/// If they already exist it does nothing unless force=kTRUE.
1400
1402{
1403 if (fSlices && !force) return;
1404
1405 fSum = .0;
1406
1407 for (Int_t i=0;i<fNvals;++i) {
1408 if (fPieSlices[i]->GetValue()<0) {
1409 Warning("MakeSlices",
1410 "Negative values in TPie, absolute value will be used");
1411 fPieSlices[i]->SetValue(-1.*fPieSlices[i]->GetValue());
1412 }
1413 fSum += fPieSlices[i]->GetValue();
1414 }
1415
1416 if (fSum<=.0) return;
1417
1418 if (!fSlices) fSlices = new Float_t[2*fNvals+1];
1419
1420 // Compute the slices size and position (2 angles for each slice)
1422 for (Int_t i=0;i<fNvals;++i) {
1423 Float_t dphi = fPieSlices[i]->GetValue()/fSum*360.;
1424 fSlices[2*i+1] = fSlices[2*i]+dphi/2.;
1425 fSlices[2*i+2] = fSlices[2*i]+dphi;
1426 }
1427}
1428
1429////////////////////////////////////////////////////////////////////////////////
1430/// This method, mainly intended for internal use, ordered the slices according their values.
1431/// The default (amode=kTRUE) is increasing order, but is also possible in decreasing order (amode=kFALSE).
1432///
1433/// If the merge_threshold>0 the slice that contains a quantity smaller than merge_threshold are merged
1434/// together
1435
1436void TPie::SortSlices(Bool_t amode, Float_t merge_threshold)
1437{
1438
1439 // main loop to order, bubble sort, the array
1440 Bool_t isDone = kFALSE;
1441
1442 while (isDone==kFALSE) {
1443 isDone = kTRUE;
1444
1445 for (Int_t i=0;i<fNvals-1;++i) { // loop over the values
1446 if ( (amode && (fPieSlices[i]->GetValue()>fPieSlices[i+1]->GetValue())) ||
1447 (!amode && (fPieSlices[i]->GetValue()<fPieSlices[i+1]->GetValue()))
1448 )
1449 {
1450 // exchange the order
1451 TPieSlice *tmpcpy = fPieSlices[i];
1452 fPieSlices[i] = fPieSlices[i+1];
1453 fPieSlices[i+1] = tmpcpy;
1454
1455 isDone = kFALSE;
1456 }
1457 } // end loop the values
1458 } // end main ordering loop
1459
1460 if (merge_threshold>0) {
1461 // merge smallest slices
1462 TPieSlice *merged_slice = new TPieSlice("merged","other",this);
1463 merged_slice->SetRadiusOffset(0.);
1464 merged_slice->SetLineColor(1);
1465 merged_slice->SetLineStyle(1);
1466 merged_slice->SetLineWidth(1);
1467 merged_slice->SetFillColor(gStyle->GetColorPalette( (amode ? 0 : fNvals-1) ));
1468 merged_slice->SetFillStyle(1001);
1469
1470 if (amode) {
1471 // search slices under the threshold
1472 Int_t iMerged = 0;
1473 for (;iMerged<fNvals&&fPieSlices[iMerged]->GetValue()<merge_threshold;++iMerged) {
1474 merged_slice->SetValue( merged_slice->GetValue()+fPieSlices[iMerged]->GetValue() );
1475 }
1476
1477 // evaluate number of valid slices
1478 if (iMerged<=1) { // no slices to merge
1479 delete merged_slice;
1480 }
1481 else { // write a new array with the right dimension
1482 Int_t old_fNvals = fNvals;
1483 fNvals = fNvals-iMerged+1;
1484 TPieSlice **new_array = new TPieSlice*[fNvals];
1485 new_array[0] = merged_slice;
1486 for (Int_t i=0;i<old_fNvals;++i) {
1487 if (i<iMerged) delete fPieSlices[i];
1488 else new_array[i-iMerged+1] = fPieSlices[i];
1489 }
1490 delete [] fPieSlices;
1491 fPieSlices = new_array;
1492 }
1493 }
1494 else {
1495 Int_t iMerged = fNvals-1;
1496 for (;iMerged>=0&&fPieSlices[iMerged]->GetValue()<merge_threshold;--iMerged) {
1497 merged_slice->SetValue( merged_slice->GetValue()+fPieSlices[iMerged]->GetValue() );
1498 }
1499
1500 // evaluate number of valid slices
1501 Int_t nMerged = fNvals-1-iMerged;
1502 if (nMerged<=1) { // no slices to merge
1503 delete merged_slice;
1504 }
1505 else { // write a new array with the right dimension
1506 Int_t old_fNvals = fNvals;
1507 fNvals = fNvals-nMerged+1;
1508 TPieSlice **new_array = new TPieSlice*[fNvals];
1509 new_array[fNvals-1] = merged_slice;
1510 for (Int_t i=old_fNvals-1;i>=0;--i) {
1511 if (i>iMerged) delete fPieSlices[i];
1512 else new_array[i-nMerged-1] = fPieSlices[i];
1513 }
1514 delete [] fPieSlices;
1515 fPieSlices = new_array;
1516 }
1517
1518 }
1519 }
1520
1522}
1523
@ 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
@ 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
#define h(i)
Definition: RSha256.hxx:106
bool Bool_t
Definition: RtypesCore.h:63
int Int_t
Definition: RtypesCore.h:45
const Bool_t kFALSE
Definition: RtypesCore.h:101
float Float_t
Definition: RtypesCore.h:57
double Double_t
Definition: RtypesCore.h:59
const Bool_t kTRUE
Definition: RtypesCore.h:100
const char Option_t
Definition: RtypesCore.h:66
#define ClassImp(name)
Definition: Rtypes.h:375
Option_t Option_t option
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t Int_t Int_t Window_t TString Int_t GCValues_t GetPrimarySelectionOwner GetDisplay GetScreen GetColormap GetNativeEvent const char const char dpyName wid window const char font_name cursor keysym reg const char only_if_exist regb h Point_t winding char text const char depth char const char Int_t count const char ColorStruct_t color const char Pixmap_t Pixmap_t PictureAttributes_t attr const char char ret_data h unsigned char height h offset
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t Int_t Int_t Window_t TString Int_t GCValues_t GetPrimarySelectionOwner GetDisplay GetScreen GetColormap GetNativeEvent const char const char dpyName wid window const char font_name cursor keysym reg const char only_if_exist regb h Point_t np
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t r
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t result
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize id
Option_t Option_t TPoint TPoint const char x2
Option_t Option_t TPoint TPoint const char x1
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void xpos
Option_t Option_t TPoint TPoint const char y2
Option_t Option_t SetFillColor
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void ypos
Option_t Option_t width
Option_t Option_t style
Option_t Option_t TPoint TPoint const char text
Option_t Option_t TPoint TPoint const char y1
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,...)
Formats a string in a circular formatting buffer.
Definition: TString.cxx:2452
R__EXTERN TStyle * gStyle
Definition: TStyle.h:414
#define gPad
Definition: TVirtualPad.h:288
#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:44
virtual void SetTextFont(Font_t tfont=62)
Set the text font.
Definition: TAttText.h:46
virtual void SetTextSize(Float_t tsize=1)
Set the text size.
Definition: TAttText.h:47
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:2002
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:529
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 when the text precision is smaller than 3.
Definition: TLatex.cxx:2502
Double_t GetYsize()
Return size of the formula along Y in pad coordinates when the text precision is smaller than 3.
Definition: TLatex.cxx:2590
virtual void PaintLatex(Double_t x, Double_t y, Double_t angle, Double_t size, const char *text)
Main drawing function.
Definition: TLatex.cxx:2053
This class displays a legend box (TPaveText) containing several legend entries.
Definition: TLegend.h:23
TLegendEntry * AddEntry(const TObject *obj, const char *label="", Option_t *option="lpf")
Add a new entry to this legend.
Definition: TLegend.cxx:317
void Draw(Option_t *option="") override
Draw this legend with its current attributes.
Definition: TLegend.cxx:422
void Clear(Option_t *option="") override
Clear all entries in this legend, including the header.
Definition: TLegend.cxx:376
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
const char * GetName() const override
Returns name of object.
Definition: TNamed.h:47
const char * GetTitle() const override
Returns title of object.
Definition: TNamed.h:48
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:698
@ 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:187
void Draw(Option_t *option="") override
Draw this pavetext with its current attributes.
Definition: TPaveText.cxx:238
void Paint(Option_t *option="") override
Paint this pavetext with its current attributes.
Definition: TPaveText.cxx:415
virtual TText * GetLine(Int_t number) const
Get Pointer to line number in this pavetext.
Definition: TPaveText.cxx:280
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
Double_t GetRadiusOffset() const
return the value of the offset in radial direction for this slice.
Definition: TPieSlice.cxx:68
void SetIsActive(Bool_t is)
Definition: TPieSlice.h:38
void Copy(TObject &slice) const override
Copy TPieSlice.
Definition: TPieSlice.cxx:115
Double_t GetValue() const
Return the value of this slice.
Definition: TPieSlice.cxx:76
void SetRadiusOffset(Double_t)
Set the radial offset of this slice.
Definition: TPieSlice.cxx:91
Draw a Pie Chart,.
Definition: TPie.h:23
void SetEntryVal(Int_t, Double_t)
Set the value of a slice.
Definition: TPie.cxx:1271
TPieSlice * GetSlice(Int_t i)
Return the reference to the slice of index 'id'.
Definition: TPie.cxx:712
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:1186
void Paint(Option_t *) override
Paint a Pie chart in a canvas.
Definition: TPie.cxx:802
Double_t GetEntryVal(Int_t)
Return the value associated with the slice number "i".
Definition: TPie.cxx:694
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:1384
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:1436
void SetEntryFillStyle(Int_t, Int_t)
Set the fill style for the "i" slice.
Definition: TPie.cxx:1255
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:1329
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:155
static TClass * Class()
void SetPercentFormat(const char *)
Set the numeric format for the percent value of a slice, default: %3.1f.
Definition: TPie.cxx:1354
void SetLabels(const char *[])
Set the labels for all the slices.
Definition: TPie.cxx:1337
void SetY(Double_t)
Set Y value.
Definition: TPie.cxx:1392
TLegend * GetLegend()
If created before by Paint option or by MakeLegend method return the pointer to the legend,...
Definition: TPie.cxx:703
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:721
Int_t GetEntryFillColor(Int_t)
Return the color of the slice number "i".
Definition: TPie.cxx:646
void SetLabelsOffset(Float_t)
Set the distance between the label end the external line of the TPie.
Definition: TPie.cxx:1346
void SetEntryRadiusOffset(Int_t, Double_t)
Set the distance, in the direction of the radius of the slice.
Definition: TPie.cxx:1263
Double_t GetAngularOffset()
Definition: TPie.h:62
void DrawGhost()
This method is for internal use.
Definition: TPie.cxx:298
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:1309
Double_t fRadius
Radius Pie radius.
Definition: TPie.h:35
TPieSlice ** fPieSlices
[fNvals] Slice array of this pie-chart
Definition: TPie.h:43
void ExecuteEvent(Int_t, Int_t, Int_t) override
Execute the mouse events.
Definition: TPie.cxx:394
Int_t DistancetoPrimitive(Int_t px, Int_t py) override
Evaluate the distance to the chart in gPad.
Definition: TPie.cxx:169
void SetEntryLineStyle(Int_t, Int_t)
Set the style for the slice's outline. "i" is the slice number.
Definition: TPie.cxx:1231
void MakeSlices(Bool_t force=kFALSE)
Make the slices.
Definition: TPie.cxx:1401
void SetEntryFillColor(Int_t, Int_t)
Set the color for the slice "i".
Definition: TPie.cxx:1247
void SetEntryLineWidth(Int_t, Int_t)
Set the width of the slice's outline. "i" is the slice number.
Definition: TPie.cxx:1239
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:1203
const char * GetEntryLabel(Int_t)
Returns the label of the entry number "i".
Definition: TPie.cxx:638
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
void SetAngle3D(Float_t val=30.)
Set the value of for the pseudo 3D view angle, in degree.
Definition: TPie.cxx:1173
Double_t GetEntryRadiusOffset(Int_t)
Return the radial offset's value for the slice number "i".
Definition: TPie.cxx:686
Int_t GetEntryFillStyle(Int_t)
Return the style use to fill the slice number "i".
Definition: TPie.cxx:654
const char * GetValueFormat()
Definition: TPie.h:80
void SetRadius(Double_t)
Set the pie chart's radius' value.
Definition: TPie.cxx:1362
void SavePrimitive(std::ostream &out, Option_t *opts="") override
Save primitive as a C++ statement(s) on output stream out.
Definition: TPie.cxx:1118
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:768
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:189
Int_t GetEntryLineStyle(Int_t)
Return the style used to outline thi "i" slice.
Definition: TPie.cxx:670
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:1214
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:1293
Int_t GetEntryLineWidth(Int_t)
Return the line width used to outline thi "i" slice.
Definition: TPie.cxx:678
Int_t GetEntryLineColor(Int_t)
Return the line color used to outline thi "i" slice.
Definition: TPie.cxx:662
void Draw(Option_t *option="l") override
Draw the pie chart.
Definition: TPie.cxx:275
void SetValueFormat(const char *)
Set the numeric format the slices' values.
Definition: TPie.cxx:1376
void SetEntryLineColor(Int_t, Int_t)
Set the color for the slice's outline. "i" is the slice number.
Definition: TPie.cxx:1223
void SetFillColors(Int_t *)
Set the fill colors for all the TPie's slices.
Definition: TPie.cxx:1281
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:1155
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:272
Int_t GetOptTitle() const
Definition: TStyle.h:238
Float_t GetTitleY() const
Definition: TStyle.h:273
Style_t GetTitleFont(Option_t *axis="X") const
Return title font.
Definition: TStyle.cxx:1165
Color_t GetTitleFillColor() const
Definition: TStyle.h:263
Style_t GetTitleStyle() const
Definition: TStyle.h:265
Float_t GetLabelOffset(Option_t *axis="X") const
Return label offset.
Definition: TStyle.cxx:1089
Width_t GetTitleBorderSize() const
Definition: TStyle.h:267
Int_t GetColorPalette(Int_t i) const
Return color number i in current palette.
Definition: TStyle.cxx:1057
Int_t GetTitleAlign()
Definition: TStyle.h:262
Color_t GetTitleTextColor() const
Definition: TStyle.h:264
Float_t GetTitleH() const
Definition: TStyle.h:275
Float_t GetTitleFontSize() const
Definition: TStyle.h:266
Float_t GetTitleW() const
Definition: TStyle.h:274
Base class for several text objects.
Definition: TText.h:22
TLine * line
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)
Returns the largest of a and b.
Definition: TMathBase.h:250
constexpr Double_t PiOver2()
Definition: TMath.h:51
Double_t ATan2(Double_t y, Double_t x)
Returns the principal value of the arc tangent of y/x, expressed in radians.
Definition: TMath.h:644
Double_t Sqrt(Double_t x)
Returns the square root of x.
Definition: TMath.h:660
Short_t Min(Short_t a, Short_t b)
Returns the smallest of a and b.
Definition: TMathBase.h:198
constexpr Double_t PiOver4()
Definition: TMath.h:58
Double_t Cos(Double_t)
Returns the cosine of an angle of x radians.
Definition: TMath.h:592
constexpr Double_t Pi()
Definition: TMath.h:37
Double_t Sin(Double_t)
Returns the sine of an angle of x radians.
Definition: TMath.h:586
Short_t Abs(Short_t d)
Returns the absolute value of parameter Short_t d.
Definition: TMathBase.h:123
constexpr Double_t TwoPi()
Definition: TMath.h:44
Definition: first.py:1
TLine l
Definition: textangle.C:4