bordado.pad_region

bordado.pad_region(region, pad)

Extend the borders of a region by the given amount.

Parameters:

regiontuple = (W, E, S, N, …)

The boundaries of a given region in Cartesian or geographic coordinates. Should have a lower and an upper boundary for each dimension of the coordinate system.

padfloat or tuple = (pad_WE, pad_SN, …)

The amount of padding to add to the region. If it’s a single number, add this to all boundaries of region equally. If it’s a tuple of numbers, then will add different padding to each dimension of the region respectively. If a tuple, the number of elements should be half of the number of elements in region.

Returns:

padded_regiontuple = (W, E, S, N, …)

The padded region.

Examples

>>> pad_region((0, 1, -5, -3), 1)
(-1, 2, -6, -2)
>>> pad_region((0, 1, -5, -3, 6, 7), 1)
(-1, 2, -6, -2, 5, 8)
>>> pad_region((0, 1, -5, -3), (2, 3))
(-2, 3, -8, 0)
>>> pad_region((0, 1, -5, -3, 6, 7), (2, 3, 1))
(-2, 3, -8, 0, 5, 8)