thereisnodot.utils.scale — thereisnodot/utils 0.1.0

A set of useful scaling functions

euclidean-distance clj

(euclidean-distance vec-a vec-b)

Will calculate Euclidean distance between two vectors of the same size.

font-size-in-a-tag-cloud clj

(font-size-in-a-tag-cloud min-font-size
                          max-font-size
                          items-in-the-biggest-tag
                          items)

Will linearly calculate font size of a tag in a tag cloud. Courtesy of: https://stackoverflow.com/a/3717340/3362518

golden-ratio clj

(golden-ratio size step)

Will calculate golden ratio

haversine clj

(haversine lat-1 lng-1 lat-2 lng-2)

(haversine lat-1 lng-1 lat-2 lng-2 radius)

Will calculate Haversine distance between two points on a shphere Correctness checked at: https://www.vcalc.com/wiki/vCalc/Haversine+-+Distance

lat-lon->tile-x-y clj

(lat-lon->tile-x-y lat-deg lon-deg zoom)

Will calculate X and Y coordinates of a map tile, when given latitude longitude and a zoom level. Which you can check on OpenStreetMap: https://c.tile.openstreetmap.org/18/161421/97171.png

log-scale clj

(log-scale x1 x2 y1 y2 x)

Will calculate log scaling (mapping) from one metric into another

log-scale-round clj

(log-scale-round x1 x2 y1 y2 x)

Will calculate rounded log scale

paginate clj

(paginate current last-item)

Will create pagination based on current page and the amount of pages as input

scale clj

(scale A B C D X)

Will calculate linear scaling (mapping) from one metric into

tag-font-log-normalized clj

(tag-font-log-normalized items-in-the-biggest-tag items)

Will non linearly calculate font size of a tag in a tag cloud

x-y->tile-lat-lon clj

(x-y->tile-lat-lon xtile ytile zoom)

Will calculate latitude and longitude coordinates of a map tile, when given tile X Y and a zoom level. You can check example on OpenStreetMap: https://www.openstreetmap.org/#map=18/42.1440/41.6780