standard_scales: Standard map, architectural, and engineering scales

In elipousson/overedge: Assorted Functions For Easier Map Making

Standard map, architectural, and engineering scales

Description

Standard map scales derived from USGS 2002 report on map scales https://pubs.usgs.gov/fs/2002/0015/report.pdf

Usage

standard_scales

Format

A data frame with 32 rows and 16 variables:

scale

Scale name

standard

Standard (USGS, architectural, or engineering)

series

Series name (USGS map scales only)

actual_ft

Scale distance for 1 ft actual.

actual_ft_unit

Unit of scale for 1 ft actual.

scale_in

Actual distance for 1 in scale.

scale_in_unit

Unit of actual distance for 1 in scale.

scale_in_accuracy

Accuracy of 1 in scale (approximate or exact)

scale_cm

Actual distance for 1 cm scale.

scale_cm_unit

Unit of actual distance for 1 cm scale.

scale_cm_accuracy

Accuracy of 1 cm scale (approximate or exact)

size_latlon

Standard size in latitude/longitude

size_latlon_unit

Unit of latitude/longitude size (minutes or degrees)

area_approx

Approximate actual area

area_approx_unit

Approximate area unit

series_status

Series status (select USGS map series are "abandoned")

Details

Common architectural and engineering scales derived from FEMA guide to using scales https://www.usfa.fema.gov/downloads/pdf/nfa/engineer-architect-scales.pdf

elipousson/overedge documentation built on Aug. 13, 2022, 7:41 p.m.