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#include <TrapezoidalCartesianMFGrid.h>
Public Member Functions | |
| void | dump () const |
| virtual LocalPoint | fromGridFrame (double a, double b, double c) const |
| find grid coordinates for point. For debugging and validation only. | |
| virtual void | toGridFrame (const LocalPoint &p, double &a, double &b, double &c) const |
| find grid coordinates for point. For debugging and validation only. | |
| TrapezoidalCartesianMFGrid (binary_ifstream &istr, const GloballyPositioned< float > &vol) | |
| virtual LocalVector | uncheckedValueInTesla (const LocalPoint &p) const |
| Interpolated field value at given point; does not check for exceptions. | |
Private Attributes | |
| bool | convertToLocal |
| bool | increasingAlongX |
| Trapezoid2RectangleMappingX | mapping_ |
Grid for a trapezoid in cartesian coordinate. The grid must have uniform spacing in two coordinates and increasing spacing in the other. Increasing spacing is supported only for x and y for the time being
Definition at line 21 of file TrapezoidalCartesianMFGrid.h.
| TrapezoidalCartesianMFGrid::TrapezoidalCartesianMFGrid | ( | binary_ifstream & | istr, |
| const GloballyPositioned< float > & | vol | ||
| ) |
Definition at line 18 of file TrapezoidalCartesianMFGrid.cc.
References a, b, convertToLocal, gather_cfg::cout, delta, dump(), MFGrid::frame(), MFGrid3D::grid_, h, increasingAlongX, Grid1D::lower(), mapping_, submitDQMOfflineCAF::nLines, evf::evtn::offset(), Trapezoid2RectangleMappingX::rectangle(), patRefSel_refMuJets_cfi::step2, patRefSel_refMuJets_cfi::step3, GloballyPositioned< T >::toGlobal(), GloballyPositioned< T >::toLocal(), Grid1D::upper(), PV3DBase< T, VectorTag, FrameTag >::x(), x, PV3DBase< T, VectorTag, FrameTag >::y(), detailsBasic3DVector::y, z, and PV3DBase< T, VectorTag, FrameTag >::z().
: MFGrid3D(vol), increasingAlongX(false), convertToLocal(true) { // The parameters read from the data files are given in global coordinates. // In version 85l, local frame has the same orientation of global frame for the reference // volume, i.e. the r.f. transformation is only a translation. // There is therefore no need to convert the field values to local coordinates. // Check orientation of local reference frame: GlobalVector localXDir(frame().toGlobal(LocalVector(1,0,0))); GlobalVector localYDir(frame().toGlobal(LocalVector(0,1,0))); if (localXDir.dot(GlobalVector(1,0,0)) > 0.999999 && localYDir.dot(GlobalVector(0,1,0)) > 0.999999) { // "null" rotation - requires no conversion... convertToLocal = false; } else if (localXDir.dot(GlobalVector(0,1,0)) > 0.999999 && localYDir.dot(GlobalVector(1,0,0)) > 0.999999) { // Typical orientation if master volume is in sector 1 convertToLocal = true; } else { convertToLocal = true; // Nothing wrong in principle, but this is not expected cout << "WARNING: TrapezoidalCartesianMFGrid: unexpected orientation: x: " << localXDir << " y: " << localYDir << endl; } int n1, n2, n3; inFile >> n1 >> n2 >> n3; double xref, yref, zref; inFile >> xref >> yref >> zref; double step1, step2, step3; inFile >> step1 >> step2 >> step3; double BasicDistance1[3][3]; // linear step double BasicDistance2[3][3]; // linear offset bool easya, easyb, easyc; inFile >> BasicDistance1[0][0] >> BasicDistance1[1][0] >> BasicDistance1[2][0]; inFile >> BasicDistance1[0][1] >> BasicDistance1[1][1] >> BasicDistance1[2][1]; inFile >> BasicDistance1[0][2] >> BasicDistance1[1][2] >> BasicDistance1[2][2]; inFile >> BasicDistance2[0][0] >> BasicDistance2[1][0] >> BasicDistance2[2][0]; inFile >> BasicDistance2[0][1] >> BasicDistance2[1][1] >> BasicDistance2[2][1]; inFile >> BasicDistance2[0][2] >> BasicDistance2[1][2] >> BasicDistance2[2][2]; inFile >> easya >> easyb >> easyc; vector<BVector> fieldValues; float Bx, By, Bz; int nLines = n1*n2*n3; fieldValues.reserve(nLines); for (int iLine=0; iLine<nLines; ++iLine){ inFile >> Bx >> By >> Bz; if (convertToLocal) { // Preserve double precision! Vector3DBase<double, LocalTag> lB = frame().toLocal(Vector3DBase<double, GlobalTag>(Bx,By,Bz)); fieldValues.push_back(BVector(lB.x(), lB.y(), lB.z())); } else { fieldValues.push_back(BVector(Bx,By,Bz)); } } // check completeness string lastEntry; inFile >> lastEntry; if (lastEntry != "complete") { cout << "ERROR during file reading: file is not complete" << endl; } // In version 1103l the reference sector is at phi=0 so that local y is along global X. // The increasing grid steps for the same volume are then along Y instead than along X. // To use Trapezoid2RectangleMappingX to map the trapezoidal geometry to a rectangular // cartesian geometry, we have to exchange (global) X and Y appropriately when constructing // it. int nx, ny; double stepx, stepy, stepz; double dstep, offset; if (!easya && easyb && easyc) { // Increasing grid spacing is on x increasingAlongX = true; nx = n1; ny = n2; stepx = step1; stepy = step2; stepz = step3; dstep = BasicDistance1[0][1]; offset = BasicDistance2[0][1]; } else if (easya && !easyb && easyc) { // Increasing grid spacing is on y increasingAlongX = false; nx = n2; ny = n1; stepx = step2; stepy = step1; stepz = -step3; dstep = BasicDistance1[1][0]; offset = BasicDistance2[1][0]; } else { // Increasing spacing on z or on > 1 coordinate not supported throw MagGeometryError("TrapezoidalCartesianMFGrid only implemented for first or second coordinate"); } double a = stepx * (nx -1); // first base double b = a + dstep * (ny-1) * (nx-1); // second base double h = stepy * (ny-1); // height double delta = -offset * (ny-1); // offset between two bases double baMinus1 = dstep*(ny-1) / stepx; // (b*a) - 1 GlobalPoint grefp( xref, yref, zref); LocalPoint lrefp = frame().toLocal( grefp); if (fabs(baMinus1) > 0.000001) { double b_over_a = 1 + baMinus1; double a1 = delta/baMinus1; #ifdef DEBUG_GRID cout << "Trapeze size (a,b,h) = " << a << "," << b << "," << h << endl; cout << "Global origin " << grefp << endl; cout << "Local origin " << lrefp << endl; cout << "a1 = " << a1 << endl; #endif // FIXME ASSUMPTION: here we assume that the local reference frame is oriented with X along // the direction of where the grid is not uniform. This is the case for all current geometries double x0 = lrefp.x() + a1; double y0 = lrefp.y() + h/2.; mapping_ = Trapezoid2RectangleMappingX( x0, y0, b_over_a, h); } else { // parallelogram mapping_ = Trapezoid2RectangleMappingX( 0, 0, delta/h); } // transform reference point to grid frame double xrec, yrec; mapping_.rectangle( lrefp.x(), lrefp.y(), xrec, yrec); Grid1D gridX( xrec, xrec + (a+b)/2., nx); Grid1D gridY( yrec, yrec + h, ny); Grid1D gridZ( lrefp.z(), lrefp.z() + stepz*(n3-1), n3); #ifdef DEBUG_GRID cout << " GRID X range: local " << gridX.lower() << " - " << gridX.upper() <<" global: " << (frame().toGlobal(LocalPoint(gridX.lower(),0,0))).y() << " - " << (frame().toGlobal(LocalPoint(gridX.upper(),0,0))).y() << endl; cout << " GRID Y range: local " << gridY.lower() << " - " << gridY.upper() << " global: " << (frame().toGlobal(LocalPoint(0,gridY.lower(),0))).x() << " - " << (frame().toGlobal(LocalPoint(0,gridY.upper(),0))).x() << endl; cout << " GRID Z range: local " << gridZ.lower() << " - " << gridZ.upper() << " global: " << (frame().toGlobal(LocalPoint(0,0,gridZ.lower()))).z() << " " << (frame().toGlobal(LocalPoint(0,0,gridZ.upper()))).z() << endl; #endif if (increasingAlongX) { grid_ = GridType( gridX, gridY, gridZ, fieldValues); } else { // The reason why gridY and gridX have to be exchanged is because Grid3D::index(i,j,k) // assumes a specific order for the fieldValues, and we cannot rearrange this vector. // Given that we exchange grids, we will have to exchange the outpouts of mapping_rectangle() // and the inputs of mapping_.trapezoid() in the following... grid_ = GridType( gridY, gridX, gridZ, fieldValues); } #ifdef DEBUG_GRID dump(); #endif }
| void TrapezoidalCartesianMFGrid::dump | ( | void | ) | const [virtual] |
Reimplemented from MFGrid.
Definition at line 190 of file TrapezoidalCartesianMFGrid.cc.
References gather_cfg::cout, Grid3D::data(), MFGrid3D::grid_, Grid3D::grida(), Grid3D::gridb(), Grid3D::gridc(), Grid1D::lower(), Grid1D::nodes(), and Grid1D::step().
Referenced by TrapezoidalCartesianMFGrid().
{
cout << endl << "Dump of TrapezoidalCartesianMFGrid" << endl;
// cout << "Number of points from file "
// << n1 << " " << n2 << " " << n3 << endl;
cout << "Number of points from Grid1D "
<< grid_.grida().nodes() << " " << grid_.gridb().nodes() << " " << grid_.gridc().nodes() << endl;
// cout << "Reference Point from file "
// << xref << " " << yref << " " << zref << endl;
cout << "Reference Point from Grid1D "
<< grid_.grida().lower() << " " << grid_.gridb().lower() << " " << grid_.gridc().lower() << endl;
// cout << "Basic Distance from file "
// << stepx << " " << stepy << " " << stepz << endl;
cout << "Basic Distance from Grid1D "
<< grid_.grida().step() << " " << grid_.gridb().step() << " " << grid_.gridc().step() << endl;
cout << "Dumping " << grid_.data().size() << " field values " << endl;
// grid_.dump();
// Dump ALL grid points and values
// CAVEAT: if convertToLocal = true in the ctor, points have been converted to LOCAL
// coordinates. To match those from .table files they have to be converted back to global
// for (int j=0; j < grid_.gridb().nodes(); j++) {
// for (int i=0; i < grid_.grida().nodes(); i++) {
// for (int k=0; k < grid_.gridc().nodes(); k++) {
// cout << i << " " << j << " " << k << " "
// << frame().toGlobal(LocalPoint(nodePosition(i,j,k))) << " "
// << nodeValue(i,j,k) << endl;
// }
// }
// }
}
| MFGrid::LocalPoint TrapezoidalCartesianMFGrid::fromGridFrame | ( | double | a, |
| double | b, | ||
| double | c | ||
| ) | const [virtual] |
find grid coordinates for point. For debugging and validation only.
Implements MFGrid.
Definition at line 265 of file TrapezoidalCartesianMFGrid.cc.
References increasingAlongX, mapping_, and Trapezoid2RectangleMappingX::trapezoid().
| void TrapezoidalCartesianMFGrid::toGridFrame | ( | const LocalPoint & | p, |
| double & | a, | ||
| double & | b, | ||
| double & | c | ||
| ) | const [virtual] |
find grid coordinates for point. For debugging and validation only.
Implements MFGrid.
Definition at line 253 of file TrapezoidalCartesianMFGrid.cc.
References a, b, increasingAlongX, mapping_, and Trapezoid2RectangleMappingX::rectangle().
| MFGrid::LocalVector TrapezoidalCartesianMFGrid::uncheckedValueInTesla | ( | const LocalPoint & | p | ) | const [virtual] |
Interpolated field value at given point; does not check for exceptions.
Implements MFGrid3D.
Definition at line 230 of file TrapezoidalCartesianMFGrid.cc.
References MFGrid3D::grid_, increasingAlongX, LinearGridInterpolator3D::interpolate(), mapping_, Trapezoid2RectangleMappingX::rectangle(), and swap().
{
double xrec, yrec;
mapping_.rectangle( p.x(), p.y(), xrec, yrec);
// cout << "TrapezoidalCartesianMFGrid::valueInTesla at local point " << p << endl;
// cout << p.x() << " " << p.y()
// << " transformed to grid frame: " << xrec << " " << yrec << endl;
LinearGridInterpolator3D interpol( grid_);
if (!increasingAlongX) {
std::swap(xrec,yrec);
// B values are already converted to local coord!!! otherwise we should:
// GridType::ValueType value = interpol.interpolate( xrec, yrec, p.z());
// return LocalVector(value.y(),value.x(),-value.z());
}
return LocalVector(interpol.interpolate( xrec, yrec, p.z()));
}
bool TrapezoidalCartesianMFGrid::convertToLocal [private] |
Definition at line 39 of file TrapezoidalCartesianMFGrid.h.
Referenced by TrapezoidalCartesianMFGrid().
bool TrapezoidalCartesianMFGrid::increasingAlongX [private] |
Definition at line 38 of file TrapezoidalCartesianMFGrid.h.
Referenced by fromGridFrame(), toGridFrame(), TrapezoidalCartesianMFGrid(), and uncheckedValueInTesla().
Definition at line 37 of file TrapezoidalCartesianMFGrid.h.
Referenced by fromGridFrame(), toGridFrame(), TrapezoidalCartesianMFGrid(), and uncheckedValueInTesla().
1.7.3