Logo ROOT  

Reference Guide
TCurlyArc.cxx
Go to the documentation of this file.
1// @(#)root/graf:$Id$
2// Author: Otto Schaile 20/11/99
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/** \class TCurlyArc
13\ingroup BasicGraphics
14
15Implements curly or wavy arcs used to draw Feynman diagrams.
16
17Amplitudes and wavelengths may be specified in the constructors,
18via commands or interactively from popup menus.
19The class make use of TCurlyLine by inheritance, ExecuteEvent methods
20are highly inspired from the methods used in TPolyLine and TArc.
21The picture below has been generated by the tutorial feynman.
22
23Begin_Macro(source)
24../../../tutorials/graphics/feynman.C
25End_Macro
26*/
27
28#include "Riostream.h"
29#include "TCurlyArc.h"
30#include "TROOT.h"
31#include "TVirtualPad.h"
32#include "TVirtualX.h"
33#include "TMath.h"
34#include "TPoint.h"
35
36Double_t TCurlyArc::fgDefaultWaveLength = 0.02;
37Double_t TCurlyArc::fgDefaultAmplitude = 0.01;
38Bool_t TCurlyArc::fgDefaultIsCurly = kTRUE;
39
40ClassImp(TCurlyArc);
41
42////////////////////////////////////////////////////////////////////////////////
43/// Default constructor
44
45TCurlyArc::TCurlyArc()
46{
47 fR1 = 0.;
48 fPhimin = 0.;
49 fPhimax = 0.;
50 fTheta = 0.;
51}
52
53////////////////////////////////////////////////////////////////////////////////
54/// Create a new TCurlyArc with center (x1, y1) and radius rad.
55/// The wavelength and amplitude are given in percent of the line length
56/// phimin and phimax are given in degrees.
57
58TCurlyArc::TCurlyArc(Double_t x1, Double_t y1,
59 Double_t rad, Double_t phimin, Double_t phimax,
60 Double_t wl, Double_t amp)
61 : fR1(rad), fPhimin(phimin),fPhimax(phimax)
62{
63 fX1 = x1;
64 fY1 = y1;
65 fIsCurly = fgDefaultIsCurly;
66 fAmplitude = amp;
67 fWaveLength = wl;
68 fTheta = 0;
69 Build();
70}
71
72////////////////////////////////////////////////////////////////////////////////
73/// Create a curly (Gluon) or wavy (Gamma) arc.
74
75void TCurlyArc::Build()
76{
77 Double_t pixeltoX = 1;
78 Double_t pixeltoY = 1;
79 Double_t rPix = fR1;
80 if (gPad) {
81 Double_t ww = (Double_t)gPad->GetWw();
82 Double_t wh = (Double_t)gPad->GetWh();
83 Double_t pxrange = gPad->GetAbsWNDC()*ww;
84 Double_t pyrange = - gPad->GetAbsHNDC()*wh;
85 Double_t xrange = gPad->GetX2() - gPad->GetX1();
86 Double_t yrange = gPad->GetY2() - gPad->GetY1();
87 pixeltoX = xrange / pxrange;
88 pixeltoY = yrange/pyrange;
89 rPix = fR1 / pixeltoX;
90 }
91 Double_t dang = fPhimax - fPhimin;
92 if (dang < 0) dang += 360;
93 Double_t length = TMath::Pi() * fR1 * dang/180;
94 Double_t x1sav = fX1;
95 Double_t y1sav = fY1;
96 fX1 = fY1 = 0;
97 fX2 = length;
98 fY2 = 0;
99 TCurlyLine::Build();
100 fX1 = x1sav;
101 fY1 = y1sav;
102 Double_t *xv= GetX();
103 Double_t *yv= GetY();
104 Double_t xx, yy, angle;
105 for(Int_t i = 0; i < fNsteps; i++){
106 angle = xv[i] / rPix + fPhimin * TMath::Pi()/180;
107 xx = (yv[i] + rPix) * cos(angle);
108 yy = (yv[i] + rPix) * sin(angle);
109 xx *= pixeltoX;
110 yy *= TMath::Abs(pixeltoY);
111 xv[i] = xx + fX1;
112 yv[i] = yy + fY1;
113 }
114 if (gPad) gPad->Modified();
115}
116
117////////////////////////////////////////////////////////////////////////////////
118/// Compute distance from point px,py to an arc.
119///
120/// Compute the closest distance of approach from point px,py to this arc.
121/// The distance is computed in pixels units.
122
123Int_t TCurlyArc::DistancetoPrimitive(Int_t px, Int_t py)
124{
125 // Compute distance of point to center of arc
126 Int_t pxc = gPad->XtoAbsPixel(fX1);
127 Int_t pyc = gPad->YtoAbsPixel(fY1);
128 Double_t dist = TMath::Sqrt(Double_t((pxc-px)*(pxc-px)+(pyc-py)*(pyc-py)));
129 Double_t cosa = (px - pxc)/dist;
130 Double_t sina = (pyc - py)/dist;
131 Double_t phi = TMath::ATan2(sina,cosa);
132 if (phi < 0) phi += 2 * TMath::Pi();
133 phi = phi * 180 / TMath::Pi();
134 if (fPhimax > fPhimin){
135 if (phi < fPhimin || phi > fPhimax) return 9999;
136 } else {
137 if (phi > fPhimin && phi < fPhimax) return 9999;
138 }
139 Int_t pxr = gPad->XtoPixel(fR1)- gPad->XtoPixel(0);
140 Double_t distr = TMath::Abs(dist-pxr);
141 return Int_t(distr);
142}
143
144////////////////////////////////////////////////////////////////////////////////
145/// Execute action corresponding to one event.
146///
147/// This member function is called when a TCurlyArc is clicked with the locator
148///
149/// If Left button clicked on one of the line end points, this point
150/// follows the cursor until button is released.
151///
152/// if Middle button clicked, the line is moved parallel to itself
153/// until the button is released.
154
155void TCurlyArc::ExecuteEvent(Int_t event, Int_t px, Int_t py)
156{
157 if (!gPad) return;
158
159 Int_t kMaxDiff = 10;
160 const Int_t np = 10;
161 const Double_t pi = TMath::Pi();
162 static Int_t x[np+3], y[np+3];
163 static Int_t px1,py1,npe,r1;
164 static Int_t pxold, pyold;
165 Int_t i, dpx, dpy;
166 Double_t angle,dx,dy,dphi,rLx,rRx;
167 Double_t phi0;
168 static Bool_t pTop, pL, pR, pBot, pINSIDE;
169 static Int_t pTx,pTy,pLx,pLy,pRx,pRy,pBx,pBy;
170
171 Bool_t opaque = gPad->OpaqueMoving();
172
173 switch (event) {
174
175 case kArrowKeyPress:
176 case kButton1Down:
177 if (!opaque) {
178 gVirtualX->SetLineColor(-1);
179 TAttLine::Modify();
180 dphi = (fPhimax-fPhimin) * pi / 180;
181 if (dphi<0) dphi += 2 * pi;
182 dphi /= np;
183 phi0 = fPhimin * pi / 180;
184 for (i=0;i<=np;i++) {
185 angle = Double_t(i)*dphi + phi0;
186 dx = fR1*TMath::Cos(angle);
187 dy = fR1*TMath::Sin(angle);
188 Int_t rpixY = gPad->XtoAbsPixel(dy) - gPad->XtoAbsPixel(0);
189 x[i] = gPad->XtoAbsPixel(fX1 + dx);
190 y[i] = gPad->YtoAbsPixel(fY1) + rpixY;
191 }
192 if (fPhimax-fPhimin >= 360 ) {
193 x[np+1] = x[0];
194 y[np+1] = y[0];
195 npe = np;
196 } else {
197 x[np+1] = gPad->XtoAbsPixel(fX1);
198 y[np+1] = gPad->YtoAbsPixel(fY1);
199 x[np+2] = x[0];
200 y[np+2] = y[0];
201 npe = np + 2;
202 }
203 }
204 px1 = gPad->XtoAbsPixel(fX1);
205 py1 = gPad->YtoAbsPixel(fY1);
206 pTx = pBx = px1;
207 pLy = pRy = py1;
208 pLx = gPad->XtoAbsPixel(-fR1+fX1);
209 pRx = gPad->XtoAbsPixel( fR1+fX1);
210 r1 = TMath::Abs(pLx-pRx)/2;
211 // a circle in pixels, radius measured along X
212 pTy = gPad->YtoAbsPixel(fY1) + r1;
213 pBy = gPad->YtoAbsPixel(fY1) - r1;
214
215 if (!opaque) {
216 gVirtualX->DrawLine(pRx+4, py1+4, pRx-4, py1+4);
217 gVirtualX->DrawLine(pRx-4, py1+4, pRx-4, py1-4);
218 gVirtualX->DrawLine(pRx-4, py1-4, pRx+4, py1-4);
219 gVirtualX->DrawLine(pRx+4, py1-4, pRx+4, py1+4);
220 gVirtualX->DrawLine(pLx+4, py1+4, pLx-4, py1+4);
221 gVirtualX->DrawLine(pLx-4, py1+4, pLx-4, py1-4);
222 gVirtualX->DrawLine(pLx-4, py1-4, pLx+4, py1-4);
223 gVirtualX->DrawLine(pLx+4, py1-4, pLx+4, py1+4);
224 gVirtualX->DrawLine(px1+4, pBy+4, px1-4, pBy+4);
225 gVirtualX->DrawLine(px1-4, pBy+4, px1-4, pBy-4);
226 gVirtualX->DrawLine(px1-4, pBy-4, px1+4, pBy-4);
227 gVirtualX->DrawLine(px1+4, pBy-4, px1+4, pBy+4);
228 gVirtualX->DrawLine(px1+4, pTy+4, px1-4, pTy+4);
229 gVirtualX->DrawLine(px1-4, pTy+4, px1-4, pTy-4);
230 gVirtualX->DrawLine(px1-4, pTy-4, px1+4, pTy-4);
231 gVirtualX->DrawLine(px1+4, pTy-4, px1+4, pTy+4);
232 }
233 // No break !!!
234
235 case kMouseMotion:
236 px1 = gPad->XtoAbsPixel(fX1);
237 py1 = gPad->YtoAbsPixel(fY1);
238 pTx = pBx = px1;
239 pLy = pRy = py1;
240 pLx = gPad->XtoAbsPixel(-fR1+fX1);
241 pRx = gPad->XtoAbsPixel( fR1+fX1);
242
243 pTy = gPad->YtoAbsPixel(fY1) + TMath::Abs(pLx-pRx)/2;
244 pBy = gPad->YtoAbsPixel(fY1) - TMath::Abs(pLx-pRx)/2;
245
246 pTop = pL = pR = pBot = pINSIDE = kFALSE;
247 if ((TMath::Abs(px - pTx) < kMaxDiff) &&
248 (TMath::Abs(py - pTy) < kMaxDiff)) { // top edge
249 pTop = kTRUE;
250 gPad->SetCursor(kTopSide);
251 }
252 else
253 if ((TMath::Abs(px - pBx) < kMaxDiff) &&
254 (TMath::Abs(py - pBy) < kMaxDiff)) { // bottom edge
255 pBot = kTRUE;
256 gPad->SetCursor(kBottomSide);
257 }
258 else
259 if ((TMath::Abs(py - pLy) < kMaxDiff) &&
260 (TMath::Abs(px - pLx) < kMaxDiff)) { // left edge
261 pL = kTRUE;
262 gPad->SetCursor(kLeftSide);
263 }
264 else
265 if ((TMath::Abs(py - pRy) < kMaxDiff) &&
266 (TMath::Abs(px - pRx) < kMaxDiff)) { // right edge
267 pR = kTRUE;
268 gPad->SetCursor(kRightSide);
269 }
270 else {pINSIDE= kTRUE; gPad->SetCursor(kMove); }
271 pxold = px; pyold = py;
272
273 break;
274
275 case kArrowKeyRelease:
276 case kButton1Motion:
277 if (!opaque) {
278 gVirtualX->DrawLine(pRx+4, py1+4, pRx-4, py1+4);
279 gVirtualX->DrawLine(pRx-4, py1+4, pRx-4, py1-4);
280 gVirtualX->DrawLine(pRx-4, py1-4, pRx+4, py1-4);
281 gVirtualX->DrawLine(pRx+4, py1-4, pRx+4, py1+4);
282 gVirtualX->DrawLine(pLx+4, py1+4, pLx-4, py1+4);
283 gVirtualX->DrawLine(pLx-4, py1+4, pLx-4, py1-4);
284 gVirtualX->DrawLine(pLx-4, py1-4, pLx+4, py1-4);
285 gVirtualX->DrawLine(pLx+4, py1-4, pLx+4, py1+4);
286 gVirtualX->DrawLine(px1+4, pBy+4, px1-4, pBy+4);
287 gVirtualX->DrawLine(px1-4, pBy+4, px1-4, pBy-4);
288 gVirtualX->DrawLine(px1-4, pBy-4, px1+4, pBy-4);
289 gVirtualX->DrawLine(px1+4, pBy-4, px1+4, pBy+4);
290 gVirtualX->DrawLine(px1+4, pTy+4, px1-4, pTy+4);
291 gVirtualX->DrawLine(px1-4, pTy+4, px1-4, pTy-4);
292 gVirtualX->DrawLine(px1-4, pTy-4, px1+4, pTy-4);
293 gVirtualX->DrawLine(px1+4, pTy-4, px1+4, pTy+4);
294 for (i=0;i<npe;i++) gVirtualX->DrawLine(x[i], y[i], x[i+1], y[i+1]);
295 }
296 if (pTop) {
297 r1 += (py - pyold);
298 }
299 if (pBot) {
300 r1 -= (py - pyold);
301 }
302 if (pL) {
303 r1 -= (px - pxold);
304 }
305 if (pR) {
306 r1 += (px - pxold);
307 }
308 if (pTop || pBot || pL || pR) {
309 if (!opaque) {
310 gVirtualX->SetLineColor(-1);
311 TAttLine::Modify();
312 dphi = (fPhimax-fPhimin) * pi / 180;
313 if (dphi<0) dphi += 2 * pi;
314 dphi /= np;
315 phi0 = fPhimin * pi / 180;
316 Double_t ur1 = r1;
317 Int_t pX1 = gPad->XtoAbsPixel(fX1);
318 Int_t pY1 = gPad->YtoAbsPixel(fY1);
319 for (i=0;i<=np;i++) {
320 angle = Double_t(i)*dphi + phi0;
321 dx = ur1 * TMath::Cos(angle);
322 dy = ur1 * TMath::Sin(angle);
323 x[i] = pX1 + (Int_t)dx;
324 y[i] = pY1 + (Int_t)dy;
325 }
326 if (fPhimax-fPhimin >= 360 ) {
327 x[np+1] = x[0];
328 y[np+1] = y[0];
329 npe = np;
330 } else {
331 x[np+1] = pX1;
332 y[np+1] = pY1;
333 x[np+2] = x[0];
334 y[np+2] = y[0];
335 npe = np + 2;
336 }
337 for (i=0;i<npe;i++) {
338 gVirtualX->DrawLine(x[i], y[i], x[i+1], y[i+1]);
339 }
340 }
341 else {
342 this->SetStartPoint(gPad->AbsPixeltoX(px1), gPad->AbsPixeltoY(py1));
343 this->SetRadius(TMath::Abs(gPad->AbsPixeltoX(px1-r1)-gPad->AbsPixeltoX(px1+r1))/2);
344 if (pTop) gPad->ShowGuidelines(this, event, 't', true);
345 if (pBot) gPad->ShowGuidelines(this, event, 'b', true);
346 if (pL) gPad->ShowGuidelines(this, event, 'l', true);
347 if (pR) gPad->ShowGuidelines(this, event, 'r', true);
348 gPad->Modified(kTRUE);
349 gPad->Update();
350 }
351 }
352 if (pINSIDE) {
353 dpx = px-pxold; dpy = py-pyold;
354 px1 += dpx; py1 += dpy;
355 if (!opaque) {
356 for (i=0;i<=npe;i++) { x[i] += dpx; y[i] += dpy;}
357 for (i=0;i<npe;i++) gVirtualX->DrawLine(x[i], y[i], x[i+1], y[i+1]);
358 } else {
359 this->SetStartPoint(gPad->AbsPixeltoX(px1), gPad->AbsPixeltoY(py1));
360 gPad->ShowGuidelines(this, event, 'i', true);
361 gPad->Modified(kTRUE);
362 gPad->Update();
363 }
364 }
365 pTx = pBx = px1;
366 pRx = px1+r1;
367 pLx = px1-r1;
368 pRy = pLy = py1;
369 pTy = py1-r1;
370 pBy = py1+r1;
371 if (!opaque) {
372 gVirtualX->DrawLine(pRx+4, py1+4, pRx-4, py1+4);
373 gVirtualX->DrawLine(pRx-4, py1+4, pRx-4, py1-4);
374 gVirtualX->DrawLine(pRx-4, py1-4, pRx+4, py1-4);
375 gVirtualX->DrawLine(pRx+4, py1-4, pRx+4, py1+4);
376 gVirtualX->DrawLine(pLx+4, py1+4, pLx-4, py1+4);
377 gVirtualX->DrawLine(pLx-4, py1+4, pLx-4, py1-4);
378 gVirtualX->DrawLine(pLx-4, py1-4, pLx+4, py1-4);
379 gVirtualX->DrawLine(pLx+4, py1-4, pLx+4, py1+4);
380 gVirtualX->DrawLine(px1+4, pBy+4, px1-4, pBy+4);
381 gVirtualX->DrawLine(px1-4, pBy+4, px1-4, pBy-4);
382 gVirtualX->DrawLine(px1-4, pBy-4, px1+4, pBy-4);
383 gVirtualX->DrawLine(px1+4, pBy-4, px1+4, pBy+4);
384 gVirtualX->DrawLine(px1+4, pTy+4, px1-4, pTy+4);
385 gVirtualX->DrawLine(px1-4, pTy+4, px1-4, pTy-4);
386 gVirtualX->DrawLine(px1-4, pTy-4, px1+4, pTy-4);
387 gVirtualX->DrawLine(px1+4, pTy-4, px1+4, pTy+4);
388 }
389 pxold = px;
390 pyold = py;
391 break;
392
393 case kButton1Up:
394 if (opaque) {
395 gPad->ShowGuidelines(this, event);
396 } else {
397 fX1 = gPad->AbsPixeltoX(px1);
398 fY1 = gPad->AbsPixeltoY(py1);
399 rLx = gPad->AbsPixeltoX(px1+r1);
400 rRx = gPad->AbsPixeltoX(px1-r1);
401 fR1 = TMath::Abs(rRx-rLx)/2;
402 }
403 Build();
404 gPad->Modified(kTRUE);
405 if (!opaque) gVirtualX->SetLineColor(-1);
406 }
407}
408
409////////////////////////////////////////////////////////////////////////////////
410/// Save primitive as a C++ statement(s) on output stream out
411
412void TCurlyArc::SavePrimitive(std::ostream &out, Option_t * /*= ""*/)
413{
414 if (gROOT->ClassSaved(TCurlyArc::Class())) {
415 out<<" ";
416 } else {
417 out<<" TCurlyArc *";
418 }
419 out<<"curlyarc = new TCurlyArc("
420 <<fX1<<","<<fY1<<","<<fR1<<","<<fPhimin<<","<<fPhimax<<","
421 <<fWaveLength<<","<<fAmplitude<<");"<<std::endl;
422 if (!fIsCurly) {
423 out<<" curlyarc->SetWavy();"<<std::endl;
424 }
425 SaveLineAttributes(out,"curlyarc",1,1,1);
426 out<<" curlyarc->Draw();"<<std::endl;
427}
428
429////////////////////////////////////////////////////////////////////////////////
430/// Set Curly Arc center.
431
432void TCurlyArc::SetCenter(Double_t x, Double_t y)
433{
434 fX1 = x;
435 fY1 = y;
436 Build();
437}
438
439////////////////////////////////////////////////////////////////////////////////
440/// Set Curly Arc radius.
441
442void TCurlyArc::SetRadius(Double_t x)
443{
444 fR1 = x;
445 Build();
446}
447
448////////////////////////////////////////////////////////////////////////////////
449/// Set Curly Arc minimum Phi.
450
451void TCurlyArc::SetPhimin(Double_t x)
452{
453 fPhimin = x;
454 Build();
455}
456
457////////////////////////////////////////////////////////////////////////////////
458/// Set Curly Arc maximum Phi.
459
460void TCurlyArc::SetPhimax(Double_t x)
461{
462 fPhimax = x;
463 Build();
464}
465
466////////////////////////////////////////////////////////////////////////////////
467/// Set default wave length.
468
469void TCurlyArc::SetDefaultWaveLength(Double_t WaveLength)
470{
471 fgDefaultWaveLength = WaveLength;
472}
473
474////////////////////////////////////////////////////////////////////////////////
475/// Set default wave amplitude.
476
477void TCurlyArc::SetDefaultAmplitude(Double_t Amplitude)
478{
479 fgDefaultAmplitude = Amplitude ;
480}
481
482////////////////////////////////////////////////////////////////////////////////
483/// Set default "IsCurly".
484
485void TCurlyArc::SetDefaultIsCurly(Bool_t IsCurly)
486{
487 fgDefaultIsCurly = IsCurly;
488}
489
490////////////////////////////////////////////////////////////////////////////////
491/// Get default wave length.
492
493Double_t TCurlyArc::GetDefaultWaveLength()
494{
495 return fgDefaultWaveLength;
496}
497
498////////////////////////////////////////////////////////////////////////////////
499/// Get default wave amplitude.
500
501Double_t TCurlyArc::GetDefaultAmplitude()
502{
503 return fgDefaultAmplitude;
504}
505
506////////////////////////////////////////////////////////////////////////////////
507/// Get default "IsCurly".
508
509Bool_t TCurlyArc::GetDefaultIsCurly()
510{
511 return fgDefaultIsCurly;
512}
513
514////////////////////////////////////////////////////////////////////////////////
515/// Return the bounding Box of the Line
516
517Rectangle_t TCurlyArc::GetBBox()
518{
519 Double_t R2 = fR1 * TMath::Abs(gPad->GetY2()-gPad->GetY1())/TMath::Abs(gPad->GetX2()-gPad->GetX1());
520
521 Rectangle_t BBox;
522 BBox.fX = gPad->XtoPixel(fX1-fR1);
523 BBox.fY = gPad->YtoPixel(fY1+R2);
524 BBox.fWidth = gPad->XtoPixel(fX1+fR1)-gPad->XtoPixel(fX1-fR1);
525 BBox.fHeight = gPad->YtoPixel(fY1-R2)-gPad->YtoPixel(fY1+R2);
526 return (BBox);
527}
528
529////////////////////////////////////////////////////////////////////////////////
530/// Return the center of the BoundingBox as TPoint in pixels
531
532TPoint TCurlyArc::GetBBoxCenter()
533{
534 TPoint p;
535 p.SetX(gPad->XtoPixel(fX1));
536 p.SetY(gPad->YtoPixel(fY1));
537 return(p);
538}
539
540////////////////////////////////////////////////////////////////////////////////
541/// Set center of the BoundingBox
542
543void TCurlyArc::SetBBoxCenter(const TPoint &p)
544{
545 fX1 = gPad->PixeltoX(p.GetX());
546 fY1 = gPad->PixeltoY(p.GetY()-gPad->VtoPixel(0));
547 Build();
548}
549
550////////////////////////////////////////////////////////////////////////////////
551/// Set X coordinate of the center of the BoundingBox
552
553void TCurlyArc::SetBBoxCenterX(const Int_t x)
554{
555 fX1 = gPad->PixeltoX(x);
556 Build();
557}
558
559////////////////////////////////////////////////////////////////////////////////
560/// Set Y coordinate of the center of the BoundingBox
561
562void TCurlyArc::SetBBoxCenterY(const Int_t y)
563{
564 fY1 = gPad->PixeltoY(y-gPad->VtoPixel(0));
565 Build();
566}
567
568////////////////////////////////////////////////////////////////////////////////
569/// Set left hand side of BoundingBox to a value
570/// (resize in x direction on left)
571
572void TCurlyArc::SetBBoxX1(const Int_t x)
573{
574 Double_t x1 = gPad->PixeltoX(x);
575 if (x1>fX1+fR1) return;
576
577 fR1 = (fX1+fR1-x1)*0.5;
578 fX1 = x1 + fR1;
579}
580
581////////////////////////////////////////////////////////////////////////////////
582/// Set right hand side of BoundingBox to a value
583/// (resize in x direction on right)
584
585void TCurlyArc::SetBBoxX2(const Int_t x)
586{
587 Double_t x2 = gPad->PixeltoX(x);
588 if (x2<fX1-fR1) return;
589
590 fR1 = (x2-fX1+fR1)*0.5;
591 fX1 = x2-fR1;
592}
593
594////////////////////////////////////////////////////////////////////////////////
595/// Set top of BoundingBox to a value (resize in y direction on top)
596
597void TCurlyArc::SetBBoxY1(const Int_t y)
598{
599 Double_t R2 = fR1 * TMath::Abs(gPad->GetY2()-gPad->GetY1())/TMath::Abs(gPad->GetX2()-gPad->GetX1());
600
601 Double_t y1 = gPad->PixeltoY(y-gPad->VtoPixel(0));
602 if (y1<fY1-R2) return;
603
604 fR1 = (y1-fY1+R2)*0.5 / (TMath::Abs(gPad->GetY2()-gPad->GetY1())/TMath::Abs(gPad->GetX2()-gPad->GetX1()));
605 fY1 = y1-R2;
606}
607
608////////////////////////////////////////////////////////////////////////////////
609/// Set bottom of BoundingBox to a value
610/// (resize in y direction on bottom)
611
612void TCurlyArc::SetBBoxY2(const Int_t y)
613{
614 Double_t R2 = fR1 * TMath::Abs(gPad->GetY2()-gPad->GetY1())/TMath::Abs(gPad->GetX2()-gPad->GetX1());
615
616 Double_t y2 = gPad->PixeltoY(y-gPad->VtoPixel(0));
617
618 if (y2>fY1+R2) return;
619
620 fR1 = (fY1+R2-y2)*0.5 / (TMath::Abs(gPad->GetY2()-gPad->GetY1())/TMath::Abs(gPad->GetX2()-gPad->GetX1()));
621 fY1 = y2+R2;
622}
kMouseMotion
@ kMouseMotion
Definition: Buttons.h:23
kArrowKeyRelease
@ kArrowKeyRelease
Definition: Buttons.h:21
kButton1Motion
@ kButton1Motion
Definition: Buttons.h:20
kButton1Up
@ kButton1Up
Definition: Buttons.h:19
kArrowKeyPress
@ kArrowKeyPress
Definition: Buttons.h:21
kButton1Down
@ kButton1Down
Definition: Buttons.h:17
Class
void Class()
Definition: Class.C:29
kRightSide
@ kRightSide
Definition: GuiTypes.h:372
kBottomSide
@ kBottomSide
Definition: GuiTypes.h:372
kTopSide
@ kTopSide
Definition: GuiTypes.h:372
kLeftSide
@ kLeftSide
Definition: GuiTypes.h:372
kMove
@ kMove
Definition: GuiTypes.h:373
x2
static const double x2[5]
Definition: RooGaussKronrodIntegrator1D.cxx:364
x1
static const double x1[5]
Definition: RooGaussKronrodIntegrator1D.cxx:346
Int_t
int Int_t
Definition: RtypesCore.h:43
kFALSE
const Bool_t kFALSE
Definition: RtypesCore.h:90
Bool_t
bool Bool_t
Definition: RtypesCore.h:61
Double_t
double Double_t
Definition: RtypesCore.h:57
kTRUE
const Bool_t kTRUE
Definition: RtypesCore.h:89
Option_t
const char Option_t
Definition: RtypesCore.h:64
ClassImp
#define ClassImp(name)
Definition: Rtypes.h:361
cos
double cos(double)
sin
double sin(double)
gROOT
#define gROOT
Definition: TROOT.h:406
gPad
#define gPad
Definition: TVirtualPad.h:287
gVirtualX
#define gVirtualX
Definition: TVirtualX.h:338
TAttLine::Modify
virtual void Modify()
Change current line attributes if necessary.
Definition: TAttLine.cxx:242
TAttLine::SaveLineAttributes
virtual void SaveLineAttributes(std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
Save line attributes as C++ statement(s) on output stream out.
Definition: TAttLine.cxx:270
TCurlyArc
Implements curly or wavy arcs used to draw Feynman diagrams.
Definition: TCurlyArc.h:20
TCurlyArc::SetBBoxX2
virtual void SetBBoxX2(const Int_t x)
Set right hand side of BoundingBox to a value (resize in x direction on right)
Definition: TCurlyArc.cxx:585
TCurlyArc::GetBBoxCenter
virtual TPoint GetBBoxCenter()
Return the center of the BoundingBox as TPoint in pixels.
Definition: TCurlyArc.cxx:532
TCurlyArc::Build
virtual void Build()
Create a curly (Gluon) or wavy (Gamma) arc.
Definition: TCurlyArc.cxx:75
TCurlyArc::SetRadius
virtual void SetRadius(Double_t radius)
Set Curly Arc radius.
Definition: TCurlyArc.cxx:442
TCurlyArc::GetDefaultIsCurly
static Bool_t GetDefaultIsCurly()
Get default "IsCurly".
Definition: TCurlyArc.cxx:509
TCurlyArc::SavePrimitive
virtual void SavePrimitive(std::ostream &out, Option_t *="")
Save primitive as a C++ statement(s) on output stream out.
Definition: TCurlyArc.cxx:412
TCurlyArc::SetPhimin
virtual void SetPhimin(Double_t phimin)
Set Curly Arc minimum Phi.
Definition: TCurlyArc.cxx:451
TCurlyArc::fTheta
Double_t fTheta
used internally
Definition: TCurlyArc.h:26
TCurlyArc::GetDefaultWaveLength
static Double_t GetDefaultWaveLength()
Get default wave length.
Definition: TCurlyArc.cxx:493
TCurlyArc::SetBBoxY2
virtual void SetBBoxY2(const Int_t y)
Set bottom of BoundingBox to a value (resize in y direction on bottom)
Definition: TCurlyArc.cxx:612
TCurlyArc::SetCenter
virtual void SetCenter(Double_t x1, Double_t y1)
Set Curly Arc center.
Definition: TCurlyArc.cxx:432
TCurlyArc::fPhimax
Double_t fPhimax
end phi (degrees)
Definition: TCurlyArc.h:25
TCurlyArc::ExecuteEvent
void ExecuteEvent(Int_t event, Int_t px, Int_t py)
Execute action corresponding to one event.
Definition: TCurlyArc.cxx:155
TCurlyArc::TCurlyArc
TCurlyArc()
Default constructor.
Definition: TCurlyArc.cxx:45
TCurlyArc::DistancetoPrimitive
Int_t DistancetoPrimitive(Int_t px, Int_t py)
Compute distance from point px,py to an arc.
Definition: TCurlyArc.cxx:123
TCurlyArc::fgDefaultWaveLength
static Double_t fgDefaultWaveLength
default wavelength
Definition: TCurlyArc.h:28
TCurlyArc::SetDefaultWaveLength
static void SetDefaultWaveLength(Double_t WaveLength)
Set default wave length.
Definition: TCurlyArc.cxx:469
TCurlyArc::SetDefaultAmplitude
static void SetDefaultAmplitude(Double_t Amplitude)
Set default wave amplitude.
Definition: TCurlyArc.cxx:477
TCurlyArc::fPhimin
Double_t fPhimin
start phi (degrees)
Definition: TCurlyArc.h:24
TCurlyArc::fR1
Double_t fR1
Radius of arc.
Definition: TCurlyArc.h:23
TCurlyArc::SetBBoxY1
virtual void SetBBoxY1(const Int_t y)
Set top of BoundingBox to a value (resize in y direction on top)
Definition: TCurlyArc.cxx:597
TCurlyArc::fgDefaultAmplitude
static Double_t fgDefaultAmplitude
default amplitude
Definition: TCurlyArc.h:29
TCurlyArc::SetBBoxCenter
virtual void SetBBoxCenter(const TPoint &p)
Set center of the BoundingBox.
Definition: TCurlyArc.cxx:543
TCurlyArc::GetDefaultAmplitude
static Double_t GetDefaultAmplitude()
Get default wave amplitude.
Definition: TCurlyArc.cxx:501
TCurlyArc::SetDefaultIsCurly
static void SetDefaultIsCurly(Bool_t IsCurly)
Set default "IsCurly".
Definition: TCurlyArc.cxx:485
TCurlyArc::SetBBoxCenterY
virtual void SetBBoxCenterY(const Int_t y)
Set Y coordinate of the center of the BoundingBox.
Definition: TCurlyArc.cxx:562
TCurlyArc::fgDefaultIsCurly
static Bool_t fgDefaultIsCurly
default curly type
Definition: TCurlyArc.h:30
TCurlyArc::GetBBox
virtual Rectangle_t GetBBox()
Return the bounding Box of the Line.
Definition: TCurlyArc.cxx:517
TCurlyArc::SetBBoxCenterX
virtual void SetBBoxCenterX(const Int_t x)
Set X coordinate of the center of the BoundingBox.
Definition: TCurlyArc.cxx:553
TCurlyArc::SetBBoxX1
virtual void SetBBoxX1(const Int_t x)
Set left hand side of BoundingBox to a value (resize in x direction on left)
Definition: TCurlyArc.cxx:572
TCurlyArc::SetPhimax
virtual void SetPhimax(Double_t phimax)
Set Curly Arc maximum Phi.
Definition: TCurlyArc.cxx:460
TCurlyLine::fY1
Double_t fY1
start y, center for arc
Definition: TCurlyLine.h:25
TCurlyLine::fWaveLength
Double_t fWaveLength
wavelength of sinusoid in percent of pad height
Definition: TCurlyLine.h:28
TCurlyLine::fAmplitude
Double_t fAmplitude
amplitude of sinusoid in percent of pad height
Definition: TCurlyLine.h:29
TCurlyLine::SetStartPoint
virtual void SetStartPoint(Double_t x1, Double_t y1)
Set start point.
Definition: TCurlyLine.cxx:396
TCurlyLine::fNsteps
Int_t fNsteps
used internally (controls precision)
Definition: TCurlyLine.h:30
TCurlyLine::Build
virtual void Build()
Create a curly (Gluon) or wavy (Gamma) line.
Definition: TCurlyLine.cxx:77
TCurlyLine::fY2
Double_t fY2
end y
Definition: TCurlyLine.h:27
TCurlyLine::fX1
Double_t fX1
start x, center for arc
Definition: TCurlyLine.h:24
TCurlyLine::fX2
Double_t fX2
end x
Definition: TCurlyLine.h:26
TCurlyLine::fIsCurly
Bool_t fIsCurly
true: Gluon, false: Gamma
Definition: TCurlyLine.h:31
TPoint
Definition: TPoint.h:31
TPoint::GetY
SCoord_t GetY() const
Definition: TPoint.h:47
TPoint::SetX
void SetX(SCoord_t x)
Definition: TPoint.h:48
TPoint::SetY
void SetY(SCoord_t y)
Definition: TPoint.h:49
TPoint::GetX
SCoord_t GetX() const
Definition: TPoint.h:46
TPolyLine::GetX
Double_t * GetX() const
Definition: TPolyLine.h:54
TPolyLine::GetY
Double_t * GetY() const
Definition: TPolyLine.h:55
y
Double_t y[n]
Definition: legend1.C:17
x
Double_t x[n]
Definition: legend1.C:17
ROOT::Math::gv_detail::dist
double dist(Rotation3D const &r1, Rotation3D const &r2)
Definition: 3DDistances.cxx:48
TGeant4Unit::rad
static constexpr double rad
Definition: TGeant4SystemOfUnits.h:142
TGeant4Unit::pi
static constexpr double pi
Definition: TGeant4SystemOfUnits.h:67
TMath::ATan2
Double_t ATan2(Double_t y, Double_t x)
Definition: TMath.h:669
TMath::Sqrt
Double_t Sqrt(Double_t x)
Definition: TMath.h:681
TMath::Cos
Double_t Cos(Double_t)
Definition: TMath.h:631
TMath::Pi
constexpr Double_t Pi()
Definition: TMath.h:38
TMath::Sin
Double_t Sin(Double_t)
Definition: TMath.h:627
TMath::Abs
Short_t Abs(Short_t d)
Definition: TMathBase.h:120
R2
#define R2(v, w, x, y, z, i)
Definition: sha1.inl:137
Rectangle_t
Definition: GuiTypes.h:360
Rectangle_t::fX
Short_t fX
Definition: GuiTypes.h:361
Rectangle_t::fHeight
UShort_t fHeight
Definition: GuiTypes.h:362
Rectangle_t::fY
Short_t fY
Definition: GuiTypes.h:361
Rectangle_t::fWidth
UShort_t fWidth
Definition: GuiTypes.h:362