valid_1D

valid_1D#

stimupy.utils.valid_1D(length, visual_angle, ppd)#

Asserts that the combined specification of resolution is geometrically valid.

Asserts the combined specification of shape (in pixels), visual_size (deg) and ppd. If this makes sense, i.e. (roughly), int(visual_size * ppd) == shape, this function passes without output. If the specification does not make sense, raises a ResolutionError.

Note that the resolution specification has to be fully resolved, i.e., none of the parameters can be None

Parameters:

  • length (int, length in pixels)

  • visual_angle (float, size in degrees)

  • ppd (int, resolution in pixels-per-degree)

Raises:

ResolutionError – if resolution specification is invalid, i.e. (roughly), if int(visual_angle * ppd) != length

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