// @(#)root/base:$Name: $:$Id: TView.cxx,v 1.29 2005/09/02 07:51:51 brun Exp $
// Author: Rene Brun, Nenad Buncic, Evgueni Tcherniaev, Olivier Couet 18/08/95
/*************************************************************************
* Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#include "TVirtualUtil3D.h"
#include "TVirtualPad.h"
#include "TView.h"
#include "TVirtualX.h"
#include "TROOT.h"
#include "TList.h"
#include "TFile.h"
#include "TPluginManager.h"
// Remove when TViewer3DPad fix in ExecuteRotateView() is removed
#include "TVirtualViewer3D.h"
ClassImp(TView)
//const Int_t kPerspective = BIT(14);
const Int_t kCARTESIAN = 1;
const Int_t kPOLAR = 2;
const Double_t kRad = 3.14159265358979323846/180.0;
//______________________________________________________________________________
//*-*-*-*-*-*-*-*-*-*-*-*-*The V I E W class*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ================= *
//*-* *
//*-* This package was originally written by Evgueni Tcherniaev *
//*-* from IHEP/Protvino. *
//*-* *
//*-* The original Fortran implementation was adapted to HIGZ/PAW *
//*-* by Olivier Couet and Evgueni Tcherniaev. *
//*-* *
//*-* This View class is a subset of the original system *
//*-* It has been converted to a C++ class by Rene Brun *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//____________________________________________________________________________
TView::TView()
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*View default constructor*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ========================
fOutline = 0;
fDefaultOutline = kFALSE;
fAutoRange = kFALSE;
fChanged = kFALSE;
SetBit(kMustCleanup);
for (Int_t i=0;i<3;i++) {
fX1[i] = fX2[i] = fY1[i] = fY2[i] = fZ1[i] = fZ2[i] = 0;
}
}
//____________________________________________________________________________
TView::~TView()
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*View default destructor*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* =======================
if (fOutline) fOutline->Delete();
delete fOutline;
fOutline = 0;
}
//____________________________________________________________________________
TView::TView(Int_t system)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*View constructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ================
//*-* Creates a 3-D view in the current pad
//*-* By default pad range in 3-D view is (-1,-1,1,1), so ...
//*-*
//*-* Before drawing a 3-D object in a pad, a 3-D view must be created.
//*-* Note that a view is automatically created when drawing legos or surfaces.
//*-*
//*-* The coordinate system is selected via system:
//*-* system = 1 Cartesian
//*-* system = 2 Polar
//*-* system = 3 Cylindrical
//*-* system = 4 Spherical
//*-* system = 5 PseudoRapidity/Phi
//*-* system = 11 Perspective view
//*-*
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Int_t irep;
//create the 3d utility manager (a plugin)
if (!gROOT->GetListOfSpecials()->FindObject("R__TVirtualUtil3D")) {
TPluginHandler *h;
if ((h = gROOT->GetPluginManager()->FindHandler("TVirtualUtil3D"))) {
if (h->LoadPlugin() == -1)
return;
h->ExecPlugin(0);
}
}
SetBit(kMustCleanup);
fSystem = system;
fOutline = 0;
fDefaultOutline = kFALSE;
fAutoRange = kFALSE;
fChanged = kFALSE;
if (system == kCARTESIAN || system == kPOLAR || system == 11) fPsi = 0;
else fPsi = 90;
//By default pad range in 3-D view is (-1,-1,1,1), so ...
if (gPad) {
gPad->Range(-1, -1, 1, 1);
Int_t i;
for (i = 0; i < 3; fRmin[i] = 0, fRmax[i] = 1, i++);
for (i=0;i<3;i++) {
fX1[i] = fX2[i] = fY1[i] = fY2[i] = fZ1[i] = fZ2[i] = 0;
}
fLongitude = -90 - gPad->GetPhi();
fLatitude = 90 - gPad->GetTheta();
ResetView(fLongitude, fLatitude, fPsi, irep);
gPad->SetView(this);
}
if (system == 11) SetPerspective();
}
//____________________________________________________________________________
TView::TView(const Float_t *rmin, const Float_t *rmax, Int_t system)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*View constructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ================
//*-* Creates a 3-D view in the current pad
//*-* rmin[3], rmax[3] are the limits of the object depending on
//*-* the selected coordinate system
//*-*
//*-* Before drawing a 3-D object in a pad, a 3-D view must be created.
//*-* Note that a view is automatically created when drawing legos or surfaces.
//*-*
//*-* The coordinate system is selected via system:
//*-* system = 1 Cartesian
//*-* system = 2 Polar
//*-* system = 3 Cylindrical
//*-* system = 4 Spherical
//*-* system = 5 PseudoRapidity/Phi
//*-*
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Int_t irep;
//create the 3d utility manager (a plugin)
if (!gROOT->GetListOfSpecials()->FindObject("R__TVirtualUtil3D")) {
TPluginHandler *h;
if ((h = gROOT->GetPluginManager()->FindHandler("TVirtualUtil3D"))) {
if (h->LoadPlugin() == -1)
return;
h->ExecPlugin(0);
}
}
SetBit(kMustCleanup);
fSystem = system;
fOutline = 0;
fDefaultOutline = kFALSE;
fChanged = kFALSE;
if (system == kCARTESIAN || system == kPOLAR || system == 11) fPsi = 0;
else fPsi = 90;
//By default pad range in 3-D view is (-1,-1,1,1), so ...
gPad->Range(-1, -1, 1, 1);
fAutoRange = kFALSE;
Int_t i;
for (i = 0; i < 3; fRmin[i] = rmin[i], fRmax[i] = rmax[i], i++);
for (i=0;i<3;i++) {
fX1[i] = fX2[i] = fY1[i] = fY2[i] = fZ1[i] = fZ2[i] = 0;
}
fLongitude = -90 - gPad->GetPhi();
fLatitude = 90 - gPad->GetTheta();
ResetView(fLongitude, fLatitude, fPsi, irep);
if (gPad)
gPad->SetView(this);
if (system == 11) SetPerspective();
}
//____________________________________________________________________________
TView::TView(const Double_t *rmin, const Double_t *rmax, Int_t system)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*View constructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ================
//*-* Creates a 3-D view in the current pad
//*-* rmin[3], rmax[3] are the limits of the object depending on
//*-* the selected coordinate system
//*-*
//*-* Before drawing a 3-D object in a pad, a 3-D view must be created.
//*-* Note that a view is automatically created when drawing legos or surfaces.
//*-*
//*-* The coordinate system is selected via system:
//*-* system = 1 Cartesian
//*-* system = 2 Polar
//*-* system = 3 Cylindrical
//*-* system = 4 Spherical
//*-* system = 5 PseudoRapidity/Phi
//*-*
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Int_t irep;
//create the 3d utility manager (a plugin)
if (!gROOT->GetListOfSpecials()->FindObject("R__TVirtualUtil3D")) {
TPluginHandler *h;
if ((h = gROOT->GetPluginManager()->FindHandler("TVirtualUtil3D"))) {
if (h->LoadPlugin() == -1)
return;
h->ExecPlugin(0);
}
}
SetBit(kMustCleanup);
fSystem = system;
fOutline = 0;
fDefaultOutline = kFALSE;
fChanged = kFALSE;
if (system == kCARTESIAN || system == kPOLAR || system == 11) fPsi = 0;
else fPsi = 90;
//By default pad range in 3-D view is (-1,-1,1,1), so ...
gPad->Range(-1, -1, 1, 1);
fAutoRange = kFALSE;
Int_t i;
for (i = 0; i < 3; fRmin[i] = rmin[i], fRmax[i] = rmax[i], i++);
for (i=0;i<3;i++) {
fX1[i] = fX2[i] = fY1[i] = fY2[i] = fZ1[i] = fZ2[i] = 0;
}
fLongitude = -90 - gPad->GetPhi();
fLatitude = 90 - gPad->GetTheta();
ResetView(fLongitude, fLatitude, fPsi, irep);
if (gPad)
gPad->SetView(this);
if (system == 11) SetPerspective();
}
//______________________________________________________________________________
void TView::AxisVertex(Double_t ang, Double_t *av, Int_t &ix1, Int_t &ix2, Int_t &iy1, Int_t &iy2, Int_t &iz1, Int_t &iz2)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*Define axis vertices*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ===================== *
//*-* *
//*-* Input ANG - angle between X and Y axis *
//*-* *
//*-* Output: AV(3,8) - axis vertixes *
//*-* IX1 - 1st point of X-axis *
//*-* IX2 - 2nd point of X-axis *
//*-* IY1 - 1st point of Y-axis *
//*-* IY2 - 2nd point of Y-axis *
//*-* IZ1 - 1st point of Z-axis *
//*-* IZ2 - 2nd point of Z-axis *
//*-* *
//*-* 8 6 *
//*-* / \ /|\ *
//*-* 5 / \ 7 5 / | \ 7 *
//*-* |\ /| | | | *
//*-* THETA < 90 | \6/ | THETA > 90 | /2\ | *
//*-* (Top view) | | | (Bottom view) |/ \| *
//*-* 1 \ | /3 1 \ /3 *
//*-* \|/ \ / *
//*-* 2 4 *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
/* Local variables */
Double_t cosa, sina;
Int_t i, k;
Double_t p[8] /* was [2][4] */;
Int_t i1, i2, i3, i4, ix, iy;
ix = 0;
/* Parameter adjustments */
av -= 4;
sina = TMath::Sin(ang*kRad);
cosa = TMath::Cos(ang*kRad);
p[0] = fRmin[0];
p[1] = fRmin[1];
p[2] = fRmax[0];
p[3] = fRmin[1];
p[4] = fRmax[0];
p[5] = fRmax[1];
p[6] = fRmin[0];
p[7] = fRmax[1];
//*-*- F I N D T H E M O S T L E F T P O I N T */
i1 = 1;
if (fTN[0] < 0) i1 = 2;
if (fTN[0]*cosa + fTN[1]*sina < 0) i1 = 5 - i1;
//*-*- S E T O T H E R P O I N T S */
i2 = i1 % 4 + 1;
i3 = i2 % 4 + 1;
i4 = i3 % 4 + 1;
//*-*- S E T A X I S V E R T I X E S */
av[4] = p[(i1 << 1) - 2];
av[5] = p[(i1 << 1) - 1];
av[7] = p[(i2 << 1) - 2];
av[8] = p[(i2 << 1) - 1];
av[10] = p[(i3 << 1) - 2];
av[11] = p[(i3 << 1) - 1];
av[13] = p[(i4 << 1) - 2];
av[14] = p[(i4 << 1) - 1];
for (i = 1; i <= 4; ++i) {
av[i*3 + 3] = fRmin[2];
av[i*3 + 13] = av[i*3 + 1];
av[i*3 + 14] = av[i*3 + 2];
av[i*3 + 15] = fRmax[2];
}
//*-*- S E T A X I S
if (av[4] == av[7]) ix = 2;
if (av[5] == av[8]) ix = 1;
iy = 3 - ix;
//*-*- X - A X I S
ix1 = ix;
if (av[ix*3 + 1] > av[(ix + 1)*3 + 1]) ix1 = ix + 1;
ix2 = (ix << 1) - ix1 + 1;
//*-*- Y - A X I S
iy1 = iy;
if (av[iy*3 + 2] > av[(iy + 1)*3 + 2]) iy1 = iy + 1;
iy2 = (iy << 1) - iy1 + 1;
//*-*- Z - A X I S
iz1 = 1;
iz2 = 5;
if (fTN[10] >= 0) return;
k = (ix1 - 1)*3 + ix2;
if (k%2) return;
if (k == 2) {
ix1 = 4;
ix2 = 3;
}
if (k == 4) {
ix1 = 3;
ix2 = 4;
}
if (k == 6) {
ix1 = 1;
ix2 = 4;
}
if (k == 8) {
ix1 = 4;
ix2 = 1;
}
k = (iy1 - 1)*3 + iy2;
if (k%2) return;
if (k == 2) {
iy1 = 4;
iy2 = 3;
return;
}
if (k == 4) {
iy1 = 3;
iy2 = 4;
return;
}
if (k == 6) {
iy1 = 1;
iy2 = 4;
return;
}
if (k == 8) {
iy1 = 4;
iy2 = 1;
}
}
//______________________________________________________________________________
void TView::DefinePerspectiveView()
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*Define perspective view *-*-*-*-*-*-*-*-*-*-*
//*-* ================================================ *
//*-* *
//*-* Compute transformation matrix from world coordinates *
//*-* to normalised coordinates (-1 to +1) *
// Input :
// theta, phi - spherical angles giving the direction of projection
// psi - screen rotation angle
// cov[3] - center of view
// dview - distance from COV to COP (center of projection)
// umin, umax, vmin, vmax - view window in projection plane
// dproj - distance from COP to projection plane
// bcut, fcut - backward/forward range w.r.t projection plane (fcut<=0)
// Output :
// nper[16] - normalizing transformation
// compute tr+rot to get COV in origin, view vector parallel to -Z axis, up vector
// parallel to Y.
// ^Yv UP ^ proj. plane
// | | /|
// | | / |
// | dproj / x--- center of window (COW)
// COV |----------|--x--|------------> Zv
// / | VRP'z
// / ---> | /
// / VPN |/
// Xv
//
// 1 - translate COP to origin of MARS : Tper = T(-copx, -copy, -copz)
// 2 - rotate VPN : R = Rz(-psi)*Rx(-theta)*Rz(-phi) (inverse Euler)
// 3 - left-handed screen reference to right-handed one of MARS : Trl
//
// T12 = Tper*R*Trl
//
Double_t t12[16];
Double_t cov[3];
Int_t i;
for (i=0; i<3; i++) cov[i] = 0.5*(fRmax[i]+fRmin[i]);
Double_t c1 = TMath::Cos(fPsi*kRad);
Double_t s1 = TMath::Sin(fPsi*kRad);
Double_t c2 = TMath::Cos(fLatitude*kRad);
Double_t s2 = TMath::Sin(fLatitude*kRad);
Double_t s3 = TMath::Cos(fLongitude*kRad);
Double_t c3 = -TMath::Sin(fLongitude*kRad);
t12[0] = c1*c3 - s1*c2*s3;
t12[4] = c1*s3 + s1*c2*c3;
t12[8] = s1*s2;
t12[3] = 0;
t12[1] = -s1*c3 - c1*c2*s3;
t12[5] = -s1*s3 + c1*c2*c3;
t12[9] = c1*s2;
t12[7] = 0;
t12[2] = s2*s3;
t12[6] = -s2*c3;
t12[10] = c2; // contains Trl
t12[11] = 0;
// translate with -COP (before rotation):
t12[12] = -(cov[0]*t12[0]+cov[1]*t12[4]+cov[2]*t12[8]);
t12[13] = -(cov[0]*t12[1]+cov[1]*t12[5]+cov[2]*t12[9]);
t12[14] = -(cov[0]*t12[2]+cov[1]*t12[6]+cov[2]*t12[10]);
t12[15] = 1;
// translate with (0, 0, -dview) after rotation
t12[14] -= fDview;
// reflection on Z :
t12[2] *= -1;
t12[6] *= -1;
t12[10] *= -1;
t12[14] *= -1;
// Now we shear the center of window from (0.5*(umin+umax), 0.5*(vmin+vmax), dproj)
// to (0, 0, dproj)
Double_t a2 = -fUVcoord[0]/fDproj; // shear coef. on x
Double_t b2 = -fUVcoord[1]/fDproj; // shear coef. on y
// | 1 0 0 0 |
// SHz(a2,b2) = | 0 1 0 0 |
// | a2 b2 1 0 |
// | 0 0 0 1 |
fTnorm[0] = t12[0] + a2*t12[2];
fTnorm[1] = t12[1] + b2*t12[2];
fTnorm[2] = t12[2];
fTnorm[3] = 0;
fTnorm[4] = t12[4] + a2*t12[6];
fTnorm[5] = t12[5] + b2*t12[6];
fTnorm[6] = t12[6];
fTnorm[7] = 0;
fTnorm[8] = t12[8] + a2*t12[10];
fTnorm[9] = t12[9] + b2*t12[10];
fTnorm[10] = t12[10];
fTnorm[11] = 0;
fTnorm[12] = t12[12] + a2*t12[14];
fTnorm[13] = t12[13] + b2*t12[14];
fTnorm[14] = t12[14];
fTnorm[15] = 1;
// Scale so that the view volume becomes the canonical one
//
// Sper = (2/(umax-umin), 2/(vmax-vmin), 1/dproj
//
Double_t sz = 1./fDproj;
Double_t sx = 1./fUVcoord[2];
Double_t sy = 1./fUVcoord[3];
fTnorm[0] *= sx;
fTnorm[4] *= sx;
fTnorm[8] *= sx;
fTnorm[1] *= sy;
fTnorm[5] *= sy;
fTnorm[9] *= sy;
fTnorm[2] *= sz;
fTnorm[6] *= sz;
fTnorm[10] *= sz;
fTnorm[12] *= sx;
fTnorm[13] *= sy;
fTnorm[14] *= sz;
}
//______________________________________________________________________________
void TView::DefineViewDirection(const Double_t *s, const Double_t *c,
Double_t cosphi, Double_t sinphi,
Double_t costhe, Double_t sinthe,
Double_t cospsi, Double_t sinpsi,
Double_t *tnorm, Double_t *tback)
{
//*-*-*-*-*-*-*-*-*Define view direction (in spherical coordinates)-*-*-*-*
//*-* ================================================ *
//*-* *
//*-* Compute transformation matrix from world coordinates *
//*-* to normalised coordinates (-1 to +1) *
//*-* *
//*-* Input: S(3) - scale factors *
//*-* C(3) - centre of scope *
//*-* COSPHI - longitude COS *
//*-* SINPHI - longitude SIN *
//*-* COSTHE - latitude COS (angle between +Z and view direc.) *
//*-* SINTHE - latitude SIN *
//*-* COSPSI - screen plane rotation angle COS *
//*-* SINPSI - screen plane rotation angle SIN *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
if (IsPerspective()) {
DefinePerspectiveView();
return;
}
Int_t i, k;
Double_t tran[16] /* was [4][4] */, rota[16] /* was [4][4] */;
Double_t c1, c2, c3, s1, s2, s3, scalex, scaley, scalez;
/* Parameter adjustments */
tback -= 5;
tnorm -= 5;
scalex = s[0];
scaley = s[1];
scalez = s[2];
//*-*- S E T T R A N S L A T I O N M A T R I X
tran[0] = 1 / scalex;
tran[1] = 0;
tran[2] = 0;
tran[3] = -c[0] / scalex;
tran[4] = 0;
tran[5] = 1 / scaley;
tran[6] = 0;
tran[7] = -c[1] / scaley;
tran[8] = 0;
tran[9] = 0;
tran[10] = 1 / scalez;
tran[11] = -c[2] / scalez;
tran[12] = 0;
tran[13] = 0;
tran[14] = 0;
tran[15] = 1;
//*-*- S E T R O T A T I O N M A T R I X
// ( C(PSI) S(PSI) 0) (1 0 0 ) ( C(90+PHI) S(90+PHI) 0)
// (-S(PSI) C(PSI) 0) * (0 C(THETA) S(THETA)) * (-S(90+PHI) C(90+PHI) 0)
// ( 0 0 1) (0 -S(THETA) C(THETA)) ( 0 0 1)
c1 = cospsi;
s1 = sinpsi;
c2 = costhe;
s2 = sinthe;
c3 = -sinphi;
s3 = cosphi;
rota[0] = c1*c3 - s1*c2*s3;
rota[1] = c1*s3 + s1*c2*c3;
rota[2] = s1*s2;
rota[3] = 0;
rota[4] = -s1*c3 - c1* c2*s3;
rota[5] = -s1*s3 + c1* c2*c3;
rota[6] = c1*s2;
rota[7] = 0;
rota[8] = s2*s3;
rota[9] = -s2*c3;
rota[10] = c2;
rota[11] = 0;
rota[12] = 0;
rota[13] = 0;
rota[14] = 0;
rota[15] = 1;
//*-*- F I N D T R A N S F O R M A T I O N M A T R I X
for (i = 1; i <= 3; ++i) {
for (k = 1; k <= 4; ++k) {
tnorm[k + (i << 2)] = rota[(i << 2) - 4]*tran[k - 1] + rota[(i
<< 2) - 3]*tran[k + 3] + rota[(i << 2) - 2]*tran[k +7]
+ rota[(i << 2) - 1]*tran[k + 11];
}
}
//*-*- S E T B A C K T R A N S L A T I O N M A T R I X
tran[0] = scalex;
tran[3] = c[0];
tran[5] = scaley;
tran[7] = c[1];
tran[10] = scalez;
tran[11] = c[2];
//*-*- F I N D B A C K T R A N S F O R M A T I O N
for (i = 1; i <= 3; ++i) {
for (k = 1; k <= 4; ++k) {
tback[k + (i << 2)] = tran[(i << 2) - 4]*rota[(k << 2) - 4] +
tran[(i << 2) - 3]*rota[(k << 2) - 3] + tran[(i << 2) -2]
*rota[(k << 2) - 2] + tran[(i << 2) - 1]*rota[(k <<2) - 1];
}
}
}
//______________________________________________________________________________
void TView::ExecuteEvent(Int_t event, Int_t px, Int_t py)
{
//*-*-*-*-*-*-*-*-*Execute action corresponding to one event*-*-*-*-*-*-*-*-*
ExecuteRotateView(event,px,py);
}
//______________________________________________________________________________
void TView::ExecuteRotateView(Int_t event, Int_t px, Int_t py)
{
//*-*-*-*-*-*-*-*-*Execute action corresponding to one event*-*-*-*-*-*-*-*-*-*
//*-* ========================================= *
//*-* This member function is called when a object is clicked with the locator *
//*-* *
//*-* If Left button clicked in the object area, while the button is kept down *
//*-* the cube representing the surrounding frame for the corresponding *
//*-* new latitude and longitude position is drawn. *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
static Int_t system, framewasdrawn;
static Double_t xrange, yrange, xmin, ymin, longitude1, latitude1, longitude2, latitude2;
static Double_t newlatitude, newlongitude, oldlatitude, oldlongitude;
Double_t dlatitude, dlongitude, x, y;
Int_t irep = 0;
Double_t psideg;
// all coordinate transformation are from absolute to relative
if (!gPad->IsEditable()) return;
gPad->AbsCoordinates(kTRUE);
switch (event) {
case kKeyPress :
fChanged = kTRUE;
MoveViewCommand(Char_t(px), py);
break;
case kMouseMotion:
gPad->SetCursor(kRotate);
break;
case kButton1Down:
// remember position of the cube
xmin = gPad->GetX1();
ymin = gPad->GetY1();
xrange = gPad->GetX2() - xmin;
yrange = gPad->GetY2() - ymin;
x = gPad->PixeltoX(px);
y = gPad->PixeltoY(py);
system = GetSystem();
framewasdrawn = 0;
if (system == kCARTESIAN || system == kPOLAR || IsPerspective()) {
longitude1 = 180*(x-xmin)/xrange;
latitude1 = 90*(y-ymin)/yrange;
} else {
latitude1 = 90*(x-xmin)/xrange;
longitude1 = 180*(y-ymin)/yrange;
}
newlongitude = oldlongitude = -90 - gPad->GetPhi();
newlatitude = oldlatitude = 90 - gPad->GetTheta();
psideg = GetPsi();
// if outline isn't set, make it look like a cube
if(!fOutline)
SetOutlineToCube();
break;
case kButton1Motion:
{
// draw the surrounding frame for the current mouse position
// first: Erase old frame
fChanged = kTRUE;
if (framewasdrawn) fOutline->Paint();
framewasdrawn = 1;
x = gPad->PixeltoX(px);
y = gPad->PixeltoY(py);
if (system == kCARTESIAN || system == kPOLAR || IsPerspective()) {
longitude2 = 180*(x-xmin)/xrange;
latitude2 = 90*(y-ymin)/yrange;
} else {
latitude2 = 90*(x-xmin)/xrange;
longitude2 = 180*(y-ymin)/yrange;
}
dlongitude = longitude2 - longitude1;
dlatitude = latitude2 - latitude1;
newlatitude = oldlatitude + dlatitude;
newlongitude = oldlongitude - dlongitude;
psideg = GetPsi();
ResetView(newlongitude, newlatitude, psideg, irep);
fOutline->Paint();
break;
}
case kButton1Up:
// Temporary fix for 2D drawing problems on pad. fOutline contains
// a TPolyLine3D object for the rotation box. This will be painted
// through a newly created TViewer3DPad instance, which is left
// behind on pad. This remaining creates 2D drawing problems.
//
// This is a TEMPORARY fix - will be removed when proper multiple viewers
// on pad problems are resolved.
if (gPad) {
TVirtualViewer3D *viewer = gPad->GetViewer3D();
if (viewer && !strcmp(viewer->IsA()->GetName(),"TViewer3DPad")) {
gPad->ReleaseViewer3D();
delete viewer;
}
}
// End fix
// Recompute new view matrix and redraw
psideg = GetPsi();
SetView(newlongitude, newlatitude, psideg, irep);
gPad->SetPhi(-90-newlongitude);
gPad->SetTheta(90-newlatitude);
gPad->Modified(kTRUE);
// Set line color, style and width
gVirtualX->SetLineColor(-1);
gVirtualX->SetLineStyle(-1);
gVirtualX->SetLineWidth(-1);
break;
}
// set back to default transformation mode
gPad->AbsCoordinates(kFALSE);
}
//______________________________________________________________________________
void TView::FindNormal(Double_t x, Double_t y, Double_t z, Double_t &zn)
{
//*-*-*-*-*-*-*Find Z component of NORMAL in normalized coordinates-*-*-*-*
//*-* ==================================================== *
//*-* *
//*-* Input: X - X-component of NORMAL *
//*-* Y - Y-component of NORMAL *
//*-* Z - Z-component of NORMAL *
//*-* *
//*-* Output: ZN - Z-component of NORMAL in normalized coordinates *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
zn = x*(fTN[1] * fTN[6] - fTN[2] * fTN[5]) + y*(fTN[2] * fTN[4] -
fTN[0] * fTN[6]) + z*(fTN[0] * fTN[5] - fTN[1] * fTN[4]);
}
//______________________________________________________________________________
void TView::FindPhiSectors(Int_t iopt, Int_t &kphi, Double_t *aphi, Int_t &iphi1, Int_t &iphi2)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*Find critical PHI sectors*-*-*-*-*-*-*-*-*-*-*-*
//*-* ========================= *
//*-* *
//*-* Input: IOPT - options: 1 - from BACK to FRONT 'BF' *
//*-* 2 - from FRONT to BACK 'FB' *
//*-* KPHI - number of phi sectors *
//*-* APHI(*) - PHI separators (modified internally) *
//*-* *
//*-* Output: IPHI1 - initial sector *
//*-* IPHI2 - final sector *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Int_t iphi[2], i, k;
Double_t dphi;
Double_t x1, x2, z1, z2, phi1, phi2;
/* Parameter adjustments */
--aphi;
if (aphi[kphi + 1] == aphi[1]) aphi[kphi + 1] += 360;
dphi = TMath::Abs(aphi[kphi + 1] - aphi[1]);
if (dphi != 360) {
aphi[kphi + 2] = (aphi[1] + aphi[kphi + 1]) / (float)2. + 180;
aphi[kphi + 3] = aphi[1] + 360;
kphi += 2;
}
//*-*- F I N D C R I T I C A L S E C T O R S
k = 0;
for (i = 1; i <= kphi; ++i) {
phi1 = kRad*aphi[i];
phi2 = kRad*aphi[i + 1];
x1 = fTN[0]*TMath::Cos(phi1) + fTN[1]*TMath::Sin(phi1);
x2 = fTN[0]*TMath::Cos(phi2) + fTN[1]*TMath::Sin(phi2);
if (x1 >= 0 && x2 > 0) continue;
if (x1 <= 0 && x2 < 0) continue;
++k;
if (k == 3) break;
iphi[k - 1] = i;
}
if (k != 2) {
Error("FindPhiSectors", "something strange: num. of critical sector not equal 2");
iphi1 = 1;
iphi2 = 2;
return;
}
//*-*- F I N D O R D E R O F C R I T I C A L S E C T O R S
phi1 = kRad*(aphi[iphi[0]] + aphi[iphi[0] + 1]) / (float)2.;
phi2 = kRad*(aphi[iphi[1]] + aphi[iphi[1] + 1]) / (float)2.;
z1 = fTN[8]*TMath::Cos(phi1) + fTN[9]*TMath::Sin(phi1);
z2 = fTN[8]*TMath::Cos(phi2) + fTN[9]*TMath::Sin(phi2);
if (z1 <= z2 && iopt == 1 || z1 > z2 && iopt == 2) {
iphi1 = iphi[0];
iphi2 = iphi[1];
} else {
iphi1 = iphi[1];
iphi2 = iphi[0];
}
}
//______________________________________________________________________________
void TView::FindThetaSectors(Int_t iopt, Double_t phi, Int_t &kth, Double_t *ath, Int_t &ith1, Int_t &ith2)
{
//*-*-*-*-*-*-*-Find critical THETA sectors for given PHI sector*-*-*-*-*-*
//*-* ================================================ *
//*-* *
//*-* Input: IOPT - options: 1 - from BACK to FRONT 'BF' *
//*-* 2 - from FRONT to BACK 'FB' *
//*-* PHI - PHI sector *
//*-* KTH - number of THETA sectors *
//*-* ATH(*) - THETA separators (modified internally) *
//*-* *
//*-* Output: ITH1 - initial sector *
//*-* ITH2 - final sector *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Int_t i, k, ith[2];
Double_t z1, z2, cosphi, sinphi, tncons, th1, th2, dth;
/* Parameter adjustments */
--ath;
/* Function Body */
dth = TMath::Abs(ath[kth + 1] - ath[1]);
if (dth != 360) {
ath[kth + 2] = 0.5*(ath[1] + ath[kth + 1]) + 180;
ath[kth + 3] = ath[1] + 360;
kth += 2;
}
//*-*- F I N D C R I T I C A L S E C T O R S
cosphi = TMath::Cos(phi*kRad);
sinphi = TMath::Sin(phi*kRad);
k = 0;
for (i = 1; i <= kth; ++i) {
th1 = kRad*ath[i];
th2 = kRad*ath[i + 1];
FindNormal(TMath::Cos(th1)*cosphi, TMath::Cos(th1)*sinphi, -TMath::Sin(th1), z1);
FindNormal(TMath::Cos(th2)*cosphi, TMath::Cos(th2)*sinphi, -TMath::Sin(th2), z2);
if (z1 >= 0 && z2 > 0) continue;
if (z1 <= 0 && z2 < 0) continue;
++k;
if (k == 3) break;
ith[k - 1] = i;
}
if (k != 2) {
Error("FindThetaSectors", "Something strange: num. of critical sectors not equal 2");
ith1 = 1;
ith2 = 2;
return;
}
//*-*- F I N D O R D E R O F C R I T I C A L S E C T O R S
tncons = fTN[8]*TMath::Cos(phi*kRad) + fTN[9]*TMath::Sin(phi*kRad);
th1 = kRad*(ath[ith[0]] + ath[ith[0] + 1]) / (float)2.;
th2 = kRad*(ath[ith[1]] + ath[ith[1] + 1]) / (float)2.;
z1 = tncons*TMath::Sin(th1) + fTN[10]*TMath::Cos(th1);
z2 = tncons*TMath::Sin(th2) + fTN[10]*TMath::Cos(th2);
if (z1 <= z2 && iopt == 1 || z1 > z2 && iopt == 2) {
ith1 = ith[0];
ith2 = ith[1];
} else {
ith1 = ith[1];
ith2 = ith[0];
}
}
//______________________________________________________________________________
void TView::FindScope(Double_t *scale, Double_t *center, Int_t &irep)
{
//*-*-*-*-*-*-*-*Find centre of a MIN-MAX scope and scale factors-*-*-*-*-*
//*-* ================================================ *
//*-* *
//*-* Output: SCALE(3) - scale factors *
//*-* CENTER(3) - centre *
//*-* IREP - reply (-1 if error in min-max) *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
irep = 0;
Double_t sqrt3 = 0.5*TMath::Sqrt(3.0);
for (Int_t i = 0; i < 3; i++) {
if (fRmin[i] >= fRmax[i]) { irep = -1; return;}
scale[i] = sqrt3*(fRmax[i] - fRmin[i]);
center[i] = 0.5*(fRmax[i] + fRmin[i]);
}
}
//______________________________________________________________________________
Int_t TView::GetDistancetoAxis(Int_t axis, Int_t px, Int_t py, Double_t &ratio)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*Return distance to axis from point px,py*-*-*-*
//*-* ========================================
//*-*
//*-*
//*-* Algorithm:
//*-*
//*-* A(x1,y1) P B(x2,y2)
//*-* ------------------------------------------------
//*-* I
//*-* I
//*-* I
//*-* I
//*-* M(x,y)
//*-*
//*-* Let us call a = distance AM A=a**2
//*-* b = distance BM B=b**2
//*-* c = distance AB C=c**2
//*-* d = distance PM D=d**2
//*-* u = distance AP U=u**2
//*-* v = distance BP V=v**2 c = u + v
//*-*
//*-* D = A - U
//*-* D = B - V = B -(c-u)**2
//*-* ==> u = (A -B +C)/2c
//*-*
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Double_t x1,y1,x2,y2;
Double_t x = px;
Double_t y = py;
ratio = 0;
if (fSystem != 1) return 9998; // only implemented for Cartesian coordinates
if (axis == 1) {
x1 = gPad->XtoAbsPixel(fX1[0]);
y1 = gPad->YtoAbsPixel(fX1[1]);
x2 = gPad->XtoAbsPixel(fX2[0]);
y2 = gPad->YtoAbsPixel(fX2[1]);
} else if (axis == 2) {
x1 = gPad->XtoAbsPixel(fY1[0]);
y1 = gPad->YtoAbsPixel(fY1[1]);
x2 = gPad->XtoAbsPixel(fY2[0]);
y2 = gPad->YtoAbsPixel(fY2[1]);
} else {
x1 = gPad->XtoAbsPixel(fZ1[0]);
y1 = gPad->YtoAbsPixel(fZ1[1]);
x2 = gPad->XtoAbsPixel(fZ2[0]);
y2 = gPad->YtoAbsPixel(fZ2[1]);
}
Double_t xx1 = x - x1;
Double_t xx2 = x - x2;
Double_t x1x2 = x1 - x2;
Double_t yy1 = y - y1;
Double_t yy2 = y - y2;
Double_t y1y2 = y1 - y2;
Double_t a = xx1*xx1 + yy1*yy1;
Double_t b = xx2*xx2 + yy2*yy2;
Double_t c = x1x2*x1x2 + y1y2*y1y2;
if (c <= 0) return 9999;
Double_t v = TMath::Sqrt(c);
Double_t u = (a - b + c)/(2*v);
Double_t d = TMath::Abs(a - u*u);
Int_t dist = Int_t(TMath::Sqrt(d) - 0.5);
ratio = u/c;
return dist;
}
//______________________________________________________________________________
Double_t TView::GetExtent() const
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*Get maximum view extent-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* =======================
//*-*
Double_t dx = 0.5*(fRmax[0]-fRmin[0]);
Double_t dy = 0.5*(fRmax[1]-fRmin[1]);
Double_t dz = 0.5*(fRmax[2]-fRmin[2]);
Double_t extent = TMath::Sqrt(dx*dx+dy*dy+dz*dz);
return extent;
}
//______________________________________________________________________________
void TView::GetRange(Float_t *min, Float_t *max)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*Get Range function-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ==================
//*-*
for (Int_t i = 0; i < 3; max[i] = fRmax[i], min[i] = fRmin[i], i++);
}
//______________________________________________________________________________
void TView::GetRange(Double_t *min, Double_t *max)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*Get Range function-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ==================
//*-*
for (Int_t i = 0; i < 3; max[i] = fRmax[i], min[i] = fRmin[i], i++);
}
//______________________________________________________________________________
void TView::GetWindow(Double_t &u0, Double_t &v0, Double_t &du, Double_t &dv) const
{
// Get current window extent.
u0 = fUVcoord[0];
v0 = fUVcoord[1];
du = fUVcoord[2];
dv = fUVcoord[3];
}
//______________________________________________________________________________
Bool_t TView::IsClippedNDC(Double_t *p) const
{
//*-*-*-*-*-*-*Check if point is clipped in perspective view-*-*-*-*-*-*-*-*
//*-* =============================================
//*-*
if (TMath::Abs(p[0])>p[2]) return kTRUE;
if (TMath::Abs(p[1])>p[2]) return kTRUE;
return kFALSE;
}
//______________________________________________________________________________
void TView::NDCtoWC(const Float_t* pn, Float_t* pw)
{
//*-*-*-*-*-*-*Transfer point from normalized to world coordinates*-*-*-*-*
//*-* =================================================== *
//*-* *
//*-* Input: PN(3) - point in world coordinate system *
//*-* PW(3) - point in normalized coordinate system *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
pw[0] = fTback[0]*pn[0] + fTback[1]*pn[1] + fTback[2]*pn[2] + fTback[3];
pw[1] = fTback[4]*pn[0] + fTback[5]*pn[1] + fTback[6]*pn[2] + fTback[7];
pw[2] = fTback[8]*pn[0] + fTback[9]*pn[1] + fTback[10]*pn[2] + fTback[11];
}
//______________________________________________________________________________
void TView::NDCtoWC(const Double_t* pn, Double_t* pw)
{
//*-*-*-*-*-*-*Transfer point from normalized to world coordinates*-*-*-*-*
//*-* =================================================== *
//*-* *
//*-* Input: PN(3) - point in world coordinate system *
//*-* PW(3) - point in normalized coordinate system *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
pw[0] = fTback[0]*pn[0] + fTback[1]*pn[1] + fTback[2]*pn[2] + fTback[3];
pw[1] = fTback[4]*pn[0] + fTback[5]*pn[1] + fTback[6]*pn[2] + fTback[7];
pw[2] = fTback[8]*pn[0] + fTback[9]*pn[1] + fTback[10]*pn[2] + fTback[11];
}
//______________________________________________________________________________
void TView::NormalWCtoNDC(const Float_t *pw, Float_t *pn)
{
//*-*-*Transfer vector of NORMAL from word to normalized coodinates-*-*-*-*
//*-* ============================================================
//*-*
//*-* Input: PW(3) - vector of NORMAL in word coordinate system
//*-* PN(3) - vector of NORMAL in normalized coordinate system
//*-*
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Double_t x, y, z, a1, a2, a3, b1, b2, b3, c1, c2, c3;
x = pw[0];
y = pw[1];
z = pw[2];
a1 = fTnorm[0];
a2 = fTnorm[1];
a3 = fTnorm[2];
b1 = fTnorm[4];
b2 = fTnorm[5];
b3 = fTnorm[6];
c1 = fTnorm[8];
c2 = fTnorm[9];
c3 = fTnorm[10];
pn[0] = x*(b2*c3 - b3*c2) + y*(b3*c1 - b1*c3) + z*(b1*c2 - b2*c1);
pn[1] = x*(c2*a3 - c3*a2) + y*(c3*a1 - c1*a3) + z*(c1*a2 - c2*a1);
pn[2] = x*(a2*b3 - a3*b2) + y*(a3*b1 - a1*b3) + z*(a1*b2 - a2*b1);
}
//______________________________________________________________________________
void TView::NormalWCtoNDC(const Double_t *pw, Double_t *pn)
{
//*-*-*Transfer vector of NORMAL from word to normalized coodinates-*-*-*-*
//*-* ============================================================
//*-*
//*-* Input: PW(3) - vector of NORMAL in word coordinate system
//*-* PN(3) - vector of NORMAL in normalized coordinate system
//*-*
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Double_t x, y, z, a1, a2, a3, b1, b2, b3, c1, c2, c3;
x = pw[0];
y = pw[1];
z = pw[2];
a1 = fTnorm[0];
a2 = fTnorm[1];
a3 = fTnorm[2];
b1 = fTnorm[4];
b2 = fTnorm[5];
b3 = fTnorm[6];
c1 = fTnorm[8];
c2 = fTnorm[9];
c3 = fTnorm[10];
pn[0] = x*(b2*c3 - b3*c2) + y*(b3*c1 - b1*c3) + z*(b1*c2 - b2*c1);
pn[1] = x*(c2*a3 - c3*a2) + y*(c3*a1 - c1*a3) + z*(c1*a2 - c2*a1);
pn[2] = x*(a2*b3 - a3*b2) + y*(a3*b1 - a1*b3) + z*(a1*b2 - a2*b1);
}
//______________________________________________________________________________
void TView::PadRange(Int_t rback)
{
//*-*-*-*-*Set the correct window size for lego and surface plots*-*-*-*-*
//*-* ======================================================
//*-*
//*-* Set the correct window size for lego and surface plots.
//*-* And draw the background if necessary.
//*-*
//*-* Input parameters:
//*-*
//*-* RBACK : Background colour
//*-*
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Int_t i, k;
Double_t x, y, z, r1, r2, r3, xx, yy, smax[2];
Double_t xgraf[6], ygraf[6];
for (i = 1; i <= 2; ++i) {
smax[i - 1] = fTnorm[(i << 2) - 1];
for (k = 1; k <= 3; ++k) {
if (fTnorm[k + (i << 2) - 5] < 0) {
smax[i - 1] += fTnorm[k + (i << 2) - 5]*fRmin[k-1];
} else {
smax[i - 1] += fTnorm[k + (i << 2) - 5]*fRmax[k-1];
}
}
}
//*-*- Compute x,y range
Double_t xmin = -smax[0];
Double_t xmax = smax[0];
Double_t ymin = -smax[1];
Double_t ymax = smax[1];
Double_t dx = xmax-xmin;
Double_t dy = ymax-ymin;
Double_t dxr = dx/(1 - gPad->GetLeftMargin() - gPad->GetRightMargin());
Double_t dyr = dy/(1 - gPad->GetBottomMargin() - gPad->GetTopMargin());
// Range() could change the size of the pad pixmap and therefore should
// be called before the other paint routines
gPad->Range(xmin - dxr*gPad->GetLeftMargin(),
ymin - dyr*gPad->GetBottomMargin(),
xmax + dxr*gPad->GetRightMargin(),
ymax + dyr*gPad->GetTopMargin());
gPad->RangeAxis(xmin, ymin, xmax, ymax);
//*-*- Draw the background if necessary
if (rback > 0) {
r1 = -1;
r2 = -1;
r3 = -1;
xgraf[0] = -smax[0];
xgraf[1] = -smax[0];
xgraf[2] = -smax[0];
xgraf[3] = -smax[0];
xgraf[4] = smax[0];
xgraf[5] = smax[0];
ygraf[0] = -smax[1];
ygraf[1] = smax[1];
ygraf[2] = -smax[1];
ygraf[3] = smax[1];
ygraf[5] = smax[1];
ygraf[4] = -smax[1];
for (i = 1; i <= 8; ++i) {
x = 0.5*((1 - r1)*fRmin[0] + (r1 + 1)*fRmax[0]);
y = 0.5*((1 - r2)*fRmin[1] + (r2 + 1)*fRmax[1]);
z = 0.5*((1 - r3)*fRmin[2] + (r3 + 1)*fRmax[2]);
xx = fTnorm[0]*x + fTnorm[1]*y + fTnorm[2]*z + fTnorm[3];
yy = fTnorm[4]*x + fTnorm[5]*y + fTnorm[6]*z + fTnorm[7];
if (TMath::Abs(xx - xgraf[1]) <= 1e-4) {
if (ygraf[1] >= yy) ygraf[1] = yy;
if (ygraf[2] <= yy) ygraf[2] = yy;
}
if (TMath::Abs(xx - xgraf[5]) <= 1e-4) {
if (ygraf[5] >= yy) ygraf[5] = yy;
if (ygraf[4] <= yy) ygraf[4] = yy;
}
if (TMath::Abs(yy - ygraf[0]) <= 1e-4) xgraf[0] = xx;
if (TMath::Abs(yy - ygraf[3]) <= 1e-4) xgraf[3] = xx;
r1 = -r1;
if (i % 2 == 0) r2 = -r2;
if (i >= 4) r3 = 1;
}
gPad->PaintFillArea(6, xgraf, ygraf);
}
}
//______________________________________________________________________________
void TView::SetAxisNDC(const Double_t *x1, const Double_t *x2, const Double_t *y1, const Double_t *y2, const Double_t *z1, const Double_t *z2)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*Store axis coordinates in the NDC system*-*-*-*
//*-* ========================================
//*-*
for (Int_t i=0;i<3;i++) {
fX1[i] = x1[i];
fX2[i] = x2[i];
fY1[i] = y1[i];
fY2[i] = y2[i];
fZ1[i] = z1[i];
fZ2[i] = z2[i];
}
}
//______________________________________________________________________________
void TView::SetDefaultWindow()
{
// Set default viewing window
if (!gPad) return;
Double_t screen_factor = 1.;
Double_t du, dv;
Double_t extent = GetExtent();
fDview = 3*extent;
fDproj = 0.5*extent;
// widh in pixels
fUpix = gPad->GetWw()*gPad->GetAbsWNDC();
// height in pixels
fVpix = gPad->GetWh()*gPad->GetAbsHNDC();
du = 0.5*screen_factor*fDproj;
dv = du*fVpix/fUpix; // keep aspect ratio
SetWindow(0, 0, du, dv);
}
//______________________________________________________________________________
void TView::SetOutlineToCube()
{
//*-*-*-*-*-*-*This is a function which creates default outline*-*-*-*-*-*
//*-* ================================================ *
//*-* *
//*-* x = fRmin[0] X = fRmax[0] *
//*-* y = fRmin[1] Y = fRmax[1] *
//*-* z = fRmin[2] Z = fRmax[2] *
//*-* *
//*-* *
//*-* (x,Y,Z) +---------+ (X,Y,Z) *
//*-* / /| *
//*-* / / | *
//*-* / / | *
//*-* (x,y,Z) +---------+ | *
//*-* | | + (X,Y,z) *
//*-* | | / *
//*-* | | / *
//*-* | |/ *
//*-* +---------+ *
//*-* (x,y,z) (X,y,z) *
//*-* *
//*-* *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**
if (!fOutline) {
fDefaultOutline = kTRUE;
fOutline = new TList();
}
TVirtualUtil3D *util = (TVirtualUtil3D*)gROOT->GetListOfSpecials()->FindObject("R__TVirtualUtil3D");
if (util) util->DrawOutlineCube((TList*)fOutline,fRmin,fRmax);
}
//______________________________________________________________________________
void TView::SetParallel()
{
if (!IsPerspective()) return;
SetBit(kPerspective, kFALSE);
Int_t irep;
ResetView(fLongitude, fLatitude, fPsi, irep);
}
//______________________________________________________________________________
void TView::SetPerspective()
{
if (IsPerspective()) return;
SetBit(kPerspective, kTRUE);
Int_t irep;
SetDefaultWindow();
ResetView(fLongitude, fLatitude, fPsi, irep);
}
//______________________________________________________________________________
void TView::SetRange(const Double_t *min, const Double_t *max)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*Set Range function-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ==================
//*-*
Int_t irep;
for (Int_t i = 0; i < 3; fRmax[i] = max[i], fRmin[i] = min[i], i++);
if (IsPerspective()) SetDefaultWindow();
ResetView(fLongitude, fLatitude, fPsi, irep);
if(irep < 0)
Error("SetRange", "problem setting view");
if(fDefaultOutline) SetOutlineToCube();
}
//______________________________________________________________________________
void TView::SetRange(Double_t x0, Double_t y0, Double_t z0, Double_t x1, Double_t y1, Double_t z1, Int_t flag)
{
//*-*-*-*-*-*-*-*-*-*-*-*Set 3-D View range*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ==================
//*-*
//*-* Input: x0, y0, z0 are minimum coordinates
//*-* x1, y1, z1 are maximum coordinates
//*-*
//*-* flag values are: 0 (set always) <- default
//*-* 1 (shrink view)
//*-* 2 (expand view)
//*-*
Double_t rmax[3], rmin[3];
switch (flag) {
case 2: // expand view
GetRange(rmin, rmax);
rmin[0] = x0 < rmin[0] ? x0 : rmin[0];
rmin[1] = y0 < rmin[1] ? y0 : rmin[1];
rmin[2] = z0 < rmin[2] ? z0 : rmin[2];
rmax[0] = x1 > rmax[0] ? x1 : rmax[0];
rmax[1] = y1 > rmax[1] ? y1 : rmax[1];
rmax[2] = z1 > rmax[2] ? z1 : rmax[2];
break;
case 1: // shrink view
GetRange(rmin, rmax);
rmin[0] = x0 > rmin[0] ? x0 : rmin[0];
rmin[1] = y0 > rmin[1] ? y0 : rmin[1];
rmin[2] = z0 > rmin[2] ? z0 : rmin[2];
rmax[0] = x1 < rmax[0] ? x1 : rmax[0];
rmax[1] = y1 < rmax[1] ? y1 : rmax[1];
rmax[2] = z1 < rmax[2] ? z1 : rmax[2];
break;
default:
rmin[0] = x0; rmax[0] = x1;
rmin[1] = y0; rmax[1] = y1;
rmin[2] = z0; rmax[2] = z1;
}
SetRange(rmin, rmax);
}
//______________________________________________________________________________
void TView::SetWindow(Double_t u0, Double_t v0, Double_t du, Double_t dv)
{
// Set viewing window.
fUVcoord[0] = u0;
fUVcoord[1] = v0;
fUVcoord[2] = du;
fUVcoord[3] = dv;
}
//______________________________________________________________________________
void TView::SetView(Double_t longitude, Double_t latitude, Double_t psi, Int_t &irep)
{
ResetView(longitude, latitude, psi, irep);
}
//______________________________________________________________________________
void TView::ResizePad()
{
// Recompute window for perspective view
if (!IsPerspective()) return;
Double_t upix = fUpix;
Double_t vpix = fVpix;
// widh in pixels
fUpix = gPad->GetWw()*gPad->GetAbsWNDC();
// height in pixels
fVpix = gPad->GetWh()*gPad->GetAbsHNDC();
Double_t u0 = fUVcoord[0]*fUpix/upix;
Double_t v0 = fUVcoord[1]*fVpix/vpix;
Double_t du = fUVcoord[2]*fUpix/upix;
Double_t dv = fUVcoord[3]*fVpix/vpix;
SetWindow(u0, v0, du, dv);
DefinePerspectiveView();
}
//______________________________________________________________________________
void TView::ResetView(Double_t longitude, Double_t latitude, Double_t psi, Int_t &irep)
{
//*-*-*-*-*-*-*-*-*Set view direction (in spherical coordinates)*-*-*-*-*-*
//*-* ============================================= *
//*-* *
//*-* Input PHI - longitude *
//*-* THETA - latitude (angle between +Z and view direction) *
//*-* PSI - rotation in screen plane *
//*-* *
//*-* Output: IREP - reply (-1 if error in min-max) *
//*-* *
//*-* Errors: error in min-max scope *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
Double_t scale[3], centre[3];
Double_t c1, c2, c3, s1, s2, s3;
//*-*- F I N D C E N T E R O F S C O P E A N D
//*-*- S C A L E F A C T O R S
FindScope(scale, centre, irep);
if (irep < 0) {
Error("ResetView", "Error in min-max scope");
return;
}
//*-*- S E T T R A N S F O R M A T I O N M A T R I C E S
fLongitude = longitude;
fPsi = psi;
fLatitude = latitude;
if (IsPerspective()) {
DefinePerspectiveView();
return;
}
c1 = TMath::Cos(longitude*kRad);
s1 = TMath::Sin(longitude*kRad);
c2 = TMath::Cos(latitude*kRad);
s2 = TMath::Sin(latitude*kRad);
c3 = TMath::Cos(psi*kRad);
s3 = TMath::Sin(psi*kRad);
DefineViewDirection(scale, centre, c1, s1, c2, s2, c3, s3, fTnorm, fTback);
c3 = 1;
s3 = 0;
DefineViewDirection(scale, centre, c1, s1, c2, s2, c3, s3, fTN, fTB);
}
//______________________________________________________________________________
void TView::WCtoNDC(const Float_t *pw, Float_t *pn)
{
//*-*-*-*-*-*-*Transfer point from world to normalized coordinates*-*-*-*-*
//*-* =================================================== *
//*-* *
//*-* Input: PW(3) - point in world coordinate system *
//*-* PN(3) - point in normalized coordinate system *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
// perspective view
if (IsPerspective()) {
for (Int_t i=0; i<3; i++)
pn[i] = pw[0]*fTnorm[i]+pw[1]*fTnorm[i+4]+pw[2]*fTnorm[i+8]+fTnorm[i+12];
if (pn[2]>0) {
pn[0] /= pn[2];
pn[1] /= pn[2];
} else {
pn[0] *= 1000.;
pn[1] *= 1000.;
}
return;
}
// parallel view
pn[0] = fTnorm[0]*pw[0] + fTnorm[1]*pw[1] + fTnorm[2]*pw[2] + fTnorm[3];
pn[1] = fTnorm[4]*pw[0] + fTnorm[5]*pw[1] + fTnorm[6]*pw[2] + fTnorm[7];
pn[2] = fTnorm[8]*pw[0] + fTnorm[9]*pw[1] + fTnorm[10]*pw[2] + fTnorm[11];
}
//______________________________________________________________________________
void TView::WCtoNDC(const Double_t *pw, Double_t *pn)
{
//*-*-*-*-*-*-*Transfer point from world to normalized coordinates*-*-*-*-*
//*-* =================================================== *
//*-* *
//*-* Input: PW(3) - point in world coordinate system *
//*-* PN(3) - point in normalized coordinate system *
//*-* *
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
// perspective view
if (IsPerspective()) {
for (Int_t i=0; i<3; i++)
pn[i] = pw[0]*fTnorm[i]+pw[1]*fTnorm[i+4]+pw[2]*fTnorm[i+8]+fTnorm[i+12];
if (pn[2]>0) {
pn[0] /= pn[2];
pn[1] /= pn[2];
} else {
pn[0] *= 1000.;
pn[1] *= 1000.;
}
return;
}
// parallel view
pn[0] = fTnorm[0]*pw[0] + fTnorm[1]*pw[1] + fTnorm[2]*pw[2] + fTnorm[3];
pn[1] = fTnorm[4]*pw[0] + fTnorm[5]*pw[1] + fTnorm[6]*pw[2] + fTnorm[7];
pn[2] = fTnorm[8]*pw[0] + fTnorm[9]*pw[1] + fTnorm[10]*pw[2] + fTnorm[11];
}
//_______________________________________________________________________________________
void TView::AdjustPad(TVirtualPad *pad)
{
// Force the current pad to be updated
TVirtualPad *thisPad = pad;
if (!thisPad) thisPad = gPad;
if (thisPad) {
thisPad->Modified();
thisPad->Update();
}
}
//_______________________________________________________________________________________
void TView::RotateView(Double_t phi, Double_t theta, TVirtualPad *pad)
{
// API to rotate view and adjust the pad provided it the current one.
Int_t iret;
Double_t p = phi;
Double_t t = theta;
SetView(p, t, 0, iret);
// Adjust current pad too
TVirtualPad *thisPad = pad;
if (!thisPad) thisPad = gPad;
if (thisPad) {
thisPad->SetPhi(-90-p);
thisPad->SetTheta(90-t);
thisPad->Modified();
thisPad->Update();
}
}
//_______________________________________________________________________________________
void TView::SideView(TVirtualPad *pad){
RotateView(0,90.0,pad);
}
//_______________________________________________________________________________________
void TView::FrontView(TVirtualPad *pad){
RotateView(270.0,90.0,pad);
}
//_______________________________________________________________________________________
void TView::TopView(TVirtualPad *pad){
RotateView(270.0,0.0,pad);
}
//_______________________________________________________________________________________
void TView::ToggleRulers(TVirtualPad *pad)
{
// Turn on /off 3D axis
TVirtualUtil3D *util = (TVirtualUtil3D*)gROOT->GetListOfSpecials()->FindObject("R__TVirtualUtil3D");
if (util) util->ToggleRulers(pad);
}
//_______________________________________________________________________________________
void TView::ToggleZoom(TVirtualPad *pad)
{
// Turn on /off the interactive option to
// Zoom / Move / Change attributes of 3D axis correspond this view
TVirtualUtil3D *util = (TVirtualUtil3D*)gROOT->GetListOfSpecials()->FindObject("R__TVirtualUtil3D");
if (util) util->ToggleZoom(pad);
}
//_______________________________________________________________________________________
void TView::AdjustScales(TVirtualPad *pad)
{
// Adjust all sides of view in respect of the biggest one
Double_t min[3],max[3];
GetRange(min,max);
int i;
Double_t maxSide = 0;
// Find the largest side
for (i=0;i<3; i++) maxSide = TMath::Max(maxSide,max[i]-min[i]);
//Adjust scales:
for (i=0;i<3; i++) max[i] += maxSide - (max[i]-min[i]);
SetRange(min,max);
AdjustPad(pad);
}
//_______________________________________________________________________________________
void TView::Centered3DImages(TVirtualPad *pad)
{
// Move view into the center of the scene
Double_t min[3],max[3];
GetRange(min,max);
int i;
for (i=0;i<3; i++) {
if (max[i] > 0) min[i] = -max[i];
else max[i] = -min[i];
}
SetRange(min,max);
AdjustPad(pad);
}
//_______________________________________________________________________________________
void TView::UnzoomView(TVirtualPad *pad,Double_t unZoomFactor )
{
// unZOOM this view
if (TMath::Abs(unZoomFactor) < 0.001) return;
ZoomView(pad,1./unZoomFactor);
}
//_______________________________________________________________________________________
void TView::ZoomView(TVirtualPad *pad,Double_t zoomFactor)
{
// ZOOM this view
if (TMath::Abs(zoomFactor) < 0.001) return;
Double_t min[3],max[3];
GetRange(min,max);
int i;
for (i=0;i<3; i++) {
// Find center
Double_t c = (max[i]+min[i])/2;
// Find a new size
Double_t s = (max[i]-min[i])/(2*zoomFactor);
// Set a new size
max[i] = c + s;
min[i] = c - s;
}
SetRange(min,max);
AdjustPad(pad);
}
//_______________________________________________________________________________________
void TView::MoveFocus(Double_t *cov, Double_t dx, Double_t dy, Double_t dz, Int_t nsteps,
Double_t dlong, Double_t dlat, Double_t dpsi)
{
// Move focus to a different box position and extent in nsteps. Perform rotation
// with dlat,dlong,dpsi at each step.
if (!IsPerspective()) return;
if (nsteps<1) return;
Double_t fc = 1./Double_t(nsteps);
Double_t oc[3], od[3], dir[3];
dir[0] = 0;
dir[1] = 0;
dir[2] = 1.;
Int_t i, j;
for (i=0; i<3; i++) {
oc[i] = 0.5*(fRmin[i]+fRmax[i]);
od[i] = 0.5*(fRmax[i]-fRmin[i]);
}
Double_t dox = cov[0]-oc[0];
Double_t doy = cov[1]-oc[1];
Double_t doz = cov[2]-oc[2];
Double_t dd = TMath::Sqrt(dox*dox+doy*doy+doz*doz);
if (dd!=0) {;
dir[0] = dox/dd;
dir[1] = doy/dd;
dir[2] = doz/dd;
}
dd *= fc;
dox = fc*(dx-od[0]);
doy = fc*(dy-od[1]);
doz = fc*(dz-od[2]);
for (i=0; i<nsteps; i++) {
oc[0] += dd*dir[0];
oc[1] += dd*dir[1];
oc[2] += dd*dir[2];
od[0] += dox;
od[1] += doy;
od[2] += doz;
for (j=0; j<3; j++) {
fRmin[j] = oc[j]-od[j];
fRmax[j] = oc[j]+od[j];
}
SetDefaultWindow();
fLatitude += dlat;
fLongitude += dlong;
fPsi += dpsi;
DefinePerspectiveView();
if (gPad) {
gPad->Modified();
gPad->Update();
}
}
}
//_______________________________________________________________________________________
void TView::MoveViewCommand(Char_t option, Int_t count)
{
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* 'a' //*-* increase scale factor (clip cube borders)
//*-* 's' //*-* decrease scale factor (clip cube borders)
//*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
if (count <= 0) count = 1;
switch (option) {
case '+':
ZoomView();
break;
case '-':
UnzoomView();
break;
case 's':
case 'S':
UnzoomView();
break;
case 'a':
case 'A':
ZoomView();
break;
case 'l':
case 'L':
case 'h':
case 'H':
case 'u':
case 'U':
case 'i':
case 'I':
MoveWindow(option);
break;
case 'j':
case 'J':
ZoomIn();
break;
case 'k':
case 'K':
ZoomOut();
break;
default:
break;
}
}
//_______________________________________________________________________________________
void TView::MoveWindow(Char_t option)
{
// Move view window :
// l,L - left
// h,H - right
// u,U - down
// i,I - up
if (!IsPerspective()) return;
Double_t shiftu = 0.1*fUVcoord[2];
Double_t shiftv = 0.1*fUVcoord[3];
switch (option) {
case 'l':
case 'L':
fUVcoord[0] += shiftu;
break;
case 'h':
case 'H':
fUVcoord[0] -= shiftu;
break;
case 'u':
case 'U':
fUVcoord[1] += shiftv;
break;
case 'i':
case 'I':
fUVcoord[1] -= shiftv;
break;
default:
return;
}
DefinePerspectiveView();
if (gPad) {
gPad->Modified();
gPad->Update();
}
}
//_______________________________________________________________________________________
void TView::ZoomIn()
{
if (!IsPerspective()) return;
Double_t extent = GetExtent();
Double_t fc = 0.1;
if (fDview<extent) {
fDview -= fc*extent;
} else {
fDview /= 1.25;
}
DefinePerspectiveView();
if (gPad) {
gPad->Modified();
gPad->Update();
}
}
//_______________________________________________________________________________________
void TView::ZoomOut()
{
if (!IsPerspective()) return;
Double_t extent = GetExtent();
Double_t fc = 0.1;
if (fDview<extent) {
fDview += fc*extent;
} else {
fDview *= 1.25;
}
DefinePerspectiveView();
if (gPad) {
gPad->Modified();
gPad->Update();
}
}
//______________________________________________________________________________
void TView::Streamer(TBuffer &R__b)
{
// Stream an object of class TView.
if (R__b.IsReading()) {
UInt_t R__s, R__c;
Version_t R__v = R__b.ReadVersion(&R__s, &R__c);
if (R__v > 1) {
TView::Class()->ReadBuffer(R__b, this, R__v, R__s, R__c);
return;
}
//====process old versions before automatic schema evolution
//unfortunately we forgot to increment the TView version number
//when the class was upgraded to double precision in version 2.25.
//we are forced to use the file version number to recognize old files.
TFile *file = (TFile*)R__b.GetParent();
if (file && file->GetVersion() < 22500) { //old version in single precision
TObject::Streamer(R__b);
TAttLine::Streamer(R__b);
Float_t single, sa[12];
Int_t i;
R__b >> fSystem;
R__b >> single; fLatitude = single;
R__b >> single; fLongitude = single;
R__b >> single; fPsi = single;
R__b.ReadStaticArray(sa); for (i=0;i<12;i++) fTN[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<12;i++) fTB[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<3;i++) fRmax[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<3;i++) fRmin[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<12;i++) fTnorm[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<12;i++) fTback[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<3;i++) fX1[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<3;i++) fX2[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<3;i++) fY1[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<3;i++) fY2[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<3;i++) fZ1[i] = sa[i];
R__b.ReadStaticArray(sa); for (i=0;i<3;i++) fZ2[i] = sa[i];
R__b >> fOutline;
R__b >> fDefaultOutline;
R__b >> fAutoRange;
} else {
TObject::Streamer(R__b);
TAttLine::Streamer(R__b);
R__b >> fLatitude;
R__b >> fLongitude;
R__b >> fPsi;
R__b.ReadStaticArray(fTN);
R__b.ReadStaticArray(fTB);
R__b.ReadStaticArray(fRmax);
R__b.ReadStaticArray(fRmin);
R__b.ReadStaticArray(fTnorm);
R__b.ReadStaticArray(fTback);
R__b.ReadStaticArray(fX1);
R__b.ReadStaticArray(fX2);
R__b.ReadStaticArray(fY1);
R__b.ReadStaticArray(fY2);
R__b.ReadStaticArray(fZ1);
R__b.ReadStaticArray(fZ2);
R__b >> fSystem;
R__b >> fOutline;
R__b >> fDefaultOutline;
R__b >> fAutoRange;
}
//====end of old versions
} else {
TView::Class()->WriteBuffer(R__b,this);
}
}
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