snap_to_grid¶

emlib.misc.snap_to_grid(x, tick, offset=0, nearest=True)[source]¶

Find the nearest slot in a grid

Given a grid defined by offset + tick * N, find the nearest element of that grid to a given x

Parameters:

x (Union[float, Rational]) – the number to snap to the grid
tick (Union[float, Rational]) – distance between ticks of the grid
offset (Union[float, Rational]) – offset of the grid
nearest – if True, snap to the nearest tick (the nearest of the next floor or ceil tick), otherwise to the floor tick

Return type:

Union[float, Rational]

Returns:

the tick to which to snap x to

Note

the result will have the same type as x, so if x is float, the result will be float, if it is a Fraction, then the result will be a fraction

Example

>>> snap_to_grid(1.6, 0.5)
1.5
>>> from fractions import Fraction
>>> snap_to_grid(Fraction(2, 3), Fraction(1, 5))
Fraction(3, 5)