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#ifndef Alignment_CommonAlignmentAlgorithm_plugins_TreeStruct_h
#define Alignment_CommonAlignmentAlgorithm_plugins_TreeStruct_h
/// structure to store algorithm results in a TTree
struct TreeStruct {
TreeStruct() : delta(0.f), error(0.f), paramIndex(0) {}
TreeStruct(int ind) : delta(0.f), error(0.f), paramIndex(ind) {}
TreeStruct(float del, float err, int ind) : delta(del), error(err), paramIndex(ind) {}
float delta; /// parameter from alignment algorithm (change wrt. start)
float error; /// error from alignment algorithm
int paramIndex; /// internal param. index (same index => same delta)
/// List of leaves to pass as 3rd argument to TTree::Branch(...) if 2nd argument
/// is a pointer to TreeStruct - keep in synch with data members above!
static const char* LeafList() { return "delta/F:error/F:paramIndex/I"; }
};
#endif
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