o2::gpu::Spline2DBase< DataT, YdimT, FlatBase > Class Template Reference

#include <Spline2D.h>

Inherits o2::gpu::Spline2DSpec< DataT, YdimT, SplineUtil::getSpec(YdimT), FlatBase >.

Public Member Functions
Spline2DBase &	operator= (const Spline2DBase &v)

Static Public Member Functions
static Spline2DBase *	readFromFile (TFile &inpf, const char *name)

Protected Types
using	Container = Spline2DContainerBase< DataT, FlatBase >
using	ParentSpec = Spline2DSpec< DataT, YdimT, SplineUtil::getSpec(YdimT), FlatBase >

Detailed Description

template<typename DataT, int32_t YdimT, class FlatBase>
class o2::gpu::Spline2DBase< DataT, YdimT, FlatBase >

The Spline2D class performs a cubic spline interpolation on an two-dimensional nonunifom grid. The class is an extension of the Spline1D class. See Spline1D.h for more details.

The spline S(x1,x2) approximates a function F(x1,x2):R^2->R^m, with 2-dimensional domain and multi-dimensional codomain. x1,x2 belong to [x1min,x1max] x [x2min,x2max].

— Example of creating a spline —

auto F = [&](double x1, double x2, double f[] ) { f[0] = 1.f + x1 + x2*x2; // F(x1,x2) }; const int32_t nKnotsU=2; const int32_t nKnotsV=3; int32_t knotsU[nKnotsU] = {0, 1}; int32_t knotsV[nKnotsV] = {0, 2, 5}; Spline2D<float,1> spline(nKnotsU, knotsU, nKnotsV, knotsV ); // spline with 1-dimensional codomain spline.approximateFunction(0., 1., 0.,1., F); //initialize spline to approximate F on [0., 1.]x[0., 1.] area float S = spline.interpolate(.1, .3 ); // interpolated value at (.1,.3)

— See also Spline2DHelper::test(); ==================================================================================================

Declare the Spline1D class as a template with one optional parameters.

Class specializations depend on the XdimT, YdimT values. They can be found in SplineSpecs.h

Parameters

DataT	data type: float or double
YdimT	YdimT > 0 : the number of Y dimensions is known at the compile time and is equal to XdimT YdimT = 0 : the number of Y dimensions will be set in the runtime YdimT < 0 : the number of Y dimensions will be set in the runtime, and it will not exceed abs(YdimT)

Common implementation (no ClassDefNV — ROOT dictionary is in the FlatObject specialization below)

Definition at line 73 of file Spline2D.h.

Member Typedef Documentation

Container

template<typename DataT , int32_t YdimT, class FlatBase >

using o2::gpu::Spline2DBase< DataT, YdimT, FlatBase >::Container = Spline2DContainerBase<DataT, FlatBase>

protected

Definition at line 77 of file Spline2D.h.

ParentSpec

template<typename DataT , int32_t YdimT, class FlatBase >

using o2::gpu::Spline2DBase< DataT, YdimT, FlatBase >::ParentSpec = Spline2DSpec<DataT, YdimT, SplineUtil::getSpec(YdimT), FlatBase>

protected

Definition at line 78 of file Spline2D.h.

Member Function Documentation

operator=()

template<typename DataT , int32_t YdimT, class FlatBase >

Spline2DBase & o2::gpu::Spline2DBase< DataT, YdimT, FlatBase >::operator= ( const Spline2DBase< DataT, YdimT, FlatBase > &  v )

inline

Definition at line 84 of file Spline2D.h.

readFromFile()

template<typename DataT , int32_t YdimT, class FlatBase >

static Spline2DBase * o2::gpu::Spline2DBase< DataT, YdimT, FlatBase >::readFromFile ( TFile &  inpf, const char *  name  )

inlinestatic

Definition at line 95 of file Spline2D.h.

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The documentation for this class was generated from the following file:

• /home/runner/work/AliceO2/AliceO2/GPU/Utils/Spline2D.h