shift

shift#

Shift an operator by a given amount either positive or negative along one dimension. The shift amount can be a scalar (uniform shift) or a rank-1 operator to shift each row or column by a different amount.

Added in version 0.3.0.

template<int DIM, typename OpT, typename ShiftOpT>
auto __MATX_INLINE__ matx::shift(const OpT &op, ShiftOpT s)#

Operator to shift dimension by a given amount

Template Parameters:

  • DIM – The dimension to be shifted

  • OpT – Type of operator or view

  • ShiftOpT – Type of the operator for the shift

Parameters:

  • op – Operator or view to shift

  • s – Operator which returns the shift

Returns:

New operator with shifted indices

template<int DIM, int... DIMS, typename OpT, typename ShiftT, typename ...ShiftsT>
auto __MATX_INLINE__ matx::shift(const OpT &op, ShiftT s, ShiftsT... shifts)#

Operator to shift dimension by a given amount. This version allows multiple dimensions.

Template Parameters:

  • DIM – The dimension to be shifted

  • DIMS... – The dimensions targeted for shifts

  • OpT – Type of operator or view

  • ShiftsT – Type of the shift operators

Parameters:

  • op – Operator or view to shift

  • s – Amount to shift forward

  • shifts – list of shift amounts

Returns:

New operator with shifted indices

Examples#

Shift all rows by the same amount:

// Shift the first dimension of "t2" by -5 so the 5th element of "t2" is the first element of "t2s"
(t2s = shift<0>(t2, -5)).run(exec);

Shift each column by a different amount using a rank-1 operator:

// Shift dim 0 of "t2r1" using a 1D operator "shifts_col" so each column is shifted by a different amount
(t2r1s = shift<0>(t2r1, shifts_col)).run(exec);
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