Published May 11, 2017
| Version v0.3
Software
Open
go-hep/hep: Release v0.3
Description
Release v0.3 brings read support for ROOT TTrees containing user-defined classes.
Not everything is supported, though.
rootio
What is supported and tested so far (in no-split and full-split mode):
- https://github.com/go-hep/hep/blob/v0.3/rootio/gendata/gen-evnt-tree.go#L51
struct P3 { int32_t Px; double Py; int32_t Pz; }; struct Event { TString Beg; int16_t I16; int32_t I32; int64_t I64; uint16_t U16; uint32_t U32; uint64_t U64; float F32; double F64; TString Str; P3 P3; int16_t ArrayI16[ARRAYSZ]; int32_t ArrayI32[ARRAYSZ]; int64_t ArrayI64[ARRAYSZ]; uint16_t ArrayU16[ARRAYSZ]; uint32_t ArrayU32[ARRAYSZ]; uint64_t ArrayU64[ARRAYSZ]; float ArrayF32[ARRAYSZ]; double ArrayF64[ARRAYSZ]; int32_t N; int16_t *SliceI16; //[N] int32_t *SliceI32; //[N] int64_t *SliceI64; //[N] uint16_t *SliceU16; //[N] uint32_t *SliceU32; //[N] uint64_t *SliceU64; //[N] float *SliceF32; //[N] double *SliceF64; //[N] std::string StdStr; std::vector<int16_t> StlVecI16; std::vector<int32_t> StlVecI32; std::vector<int64_t> StlVecI64; std::vector<uint16_t> StlVecU16; std::vector<uint32_t> StlVecU32; std::vector<uint64_t> StlVecU64; std::vector<float> StlVecF32; std::vector<double> StlVecF64; std::vector<std::string> StlVecStr; TString End; };
which can be read with a Go struct with the same layout, translating std::vector<T> into slices of T, std::string and TString into Go string, etc...
see:
https://github.com/go-hep/hep/blob/v0.3/rootio/tree_test.go#L59
type EventType struct {
Evt EventData `rootio:"evt"`
}
type Vec3 struct {
X int32 `rootio:"Px"`
Y float64 `rootio:"Py"`
Z int32 `rootio:"Pz"`
}
type EventData struct {
Beg string `rootio:"Beg"`
I16 int16 `rootio:"Int16"`
I32 int32 `rootio:"Int32"`
I64 int64 `rootio:"Int64"`
U16 uint16 `rootio:"UInt16"`
U32 uint32 `rootio:"UInt32"`
U64 uint64 `rootio:"UInt64"`
F32 float32 `rootio:"Float32"`
F64 float64 `rootio:"Float64"`
Str string `rootio:"Str"`
Vec Vec3 `rootio:"P3"`
ArrI16 [10]int16 `rootio:"ArrayI16"`
ArrI32 [10]int32 `rootio:"ArrayI32"`
ArrI64 [10]int64 `rootio:"ArrayI64"`
ArrU16 [10]uint16 `rootio:"ArrayU16"`
ArrU32 [10]uint32 `rootio:"ArrayU32"`
ArrU64 [10]uint64 `rootio:"ArrayU64"`
ArrF32 [10]float32 `rootio:"ArrayF32"`
ArrF64 [10]float64 `rootio:"ArrayF64"`
N int32 `rootio:"N"`
SliI16 []int16 `rootio:"SliceI16"`
SliI32 []int32 `rootio:"SliceI32"`
SliI64 []int64 `rootio:"SliceI64"`
SliU16 []uint16 `rootio:"SliceU16"`
SliU32 []uint32 `rootio:"SliceU32"`
SliU64 []uint64 `rootio:"SliceU64"`
SliF32 []float32 `rootio:"SliceF32"`
SliF64 []float64 `rootio:"SliceF64"`
StdStr string `rootio:"StdStr"`
VecI16 []int16 `rootio:"StlVecI16"`
VecI32 []int32 `rootio:"StlVecI32"`
VecI64 []int64 `rootio:"StlVecI64"`
VecU16 []uint16 `rootio:"StlVecU16"`
VecU32 []uint32 `rootio:"StlVecU32"`
VecU64 []uint64 `rootio:"StlVecU64"`
VecF32 []float32 `rootio:"StlVecF32"`
VecF64 []float64 `rootio:"StlVecF64"`
VecStr []string `rootio:"StlVecStr"`
End string `rootio:"End"`
}
support for more use cases will come in due time. Stay tuned!
hbook
- Michael Ughetto contributed code to retrieve the bins of
hbook.H2Dhistograms, thanks @mughetto
Files
go-hep/hep-v0.3.zip
Files
(3.2 MB)
| Name | Size | Download all |
|---|---|---|
|
md5:ffe9b137c227d3380fc213181897f134
|
3.2 MB | Preview Download |
Additional details
Related works
- Is supplement to
- https://github.com/go-hep/hep/tree/v0.3 (URL)