Get NTS References by Bounding Box

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Description

Retreive a list of NTS references at a given scale by bounding box. Bounding box is in the form returned by sp::bbox(). NTS References all have a valid series component (e.g. "021"), but map area (e.g. "H") and map sheet (e.g. "01") are not checked to make sure they exist.

Usage

1
nts.bybbox(bbox, atscale)

Arguments

bbox

A bounding box of lat/lon values in the form returned by sp::bbox().

atscale

One of nts.SCALESERIES, nts.SCALE250K, or nts.SCALE50K

Value

A list object containing zero or more NTS References.

See Also

nts