const DEFAULT_SUBSAMPLE_NUMBER = 5 # default number of samples used in sub-pixel smoothing (total number is square of this)

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const TRANSVERSE_MODE_RESOLUTION_MULTIPLIER = 3
const PROPAGATION_CONSTANT_IMAGINARY_TOLERANCE = 1e-2
const ANALYSIS_QUADRATURE_POINTS = 31
const PROGRESS_UPDATE_TIME = .05 # in seconds
