mapscale: Map scale (1 : N)

In quadkeyr: Generate Raster Images from QuadKey-Identified Datasets

Map scale (1 : N)

Description

Determines the map scale at a specified latitude, zoom level, and screen resolution. For further information, refer to the Microsoft Bing Maps Tile System documentation.

Usage

mapscale(latitude, zoom, screen_dpi)

Arguments

latitude	Latitude (in degrees) at which to measure the map scale.
zoom	Zoom or level of detail, from 1 (lowest detail) to 23 (highest detail).
screen_dpi	Resolution of the screen, in dots per inch.

Value

The map scale, expressed as the denominator N of the ratio 1 : N.

References

https://learn.microsoft.com/en-us/bingmaps/articles/bing-maps-tile-system

Examples

mapscale(
  latitude = 0,
  zoom = 6,
  screen_dpi = 96
)

quadkeyr documentation built on April 3, 2025, 8:52 p.m.