Longitude

On this page

Shape
Example
Good to know
In JSON
Details

Degrees east of the prime meridian, from -180 to 180: -0.1276.

Use it where you hold a longitude apart from its latitude. When you have both, use Point.

Shape

One Decimal from -180 to 180.

Example

example

Longitude(-0.1276)

A value outside its limits breaks min or max.

text.parse(raw, as: Longitude) reads one from text that comes from outside. Text that isn't one at all fails malformed, such as 0.1276 W, W0.1276 or -0,1276.

Good to know

West is negative. text.format shows the letter: 0.1276° W.
In JSON it is a string, so no decimal places are lost on the way.
== tells you whether two are the same, and < and list.sort_by compare and sort them.

In JSON

A string, in a request, a response or json.write:

json

"-180""-0.1276""0"

Details

Text form, storage, how it is shown, and operations

Longitude is in the group Geospatial, and has been in Jadpo since 0.1.0.

Text form

text.from writes one standard text form, the same form text.parse reads back: -180, -0.1276 and 0.

How it is stored

It is stored in one column named for the field, of type numeric. 0 is stored as 0.

How it is shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Value	Shown
`-180`	`180° W`
`-0.1276`	`0.1276° W`
`0`	`0°`
`151.2093`	`151.2093° E`
`180`	`180° E`

Operations

It also takes text.parse, text.from, text.format, json.read, json.write and ==. How every standard type behaves says how they work.

Markdown for agents: /docs/types/type-longitude.md.Built from Jadpo main at aee2e8f.