Nebuly

In heraldry and architecture,[1] a line which is drawn nebuly (or nebulée) is made up of a series of bulbous protrusions, which are supposed to resemble clouds. The term is derived from the Latin word nebula, "a mist, vapor, or cloud" (OED). A nebuly line meanders in one direction describing the shape of three-quarters of a circle, then similarly in the other direction, maintaining a straight overall trajectory. A fess nebuly is a fess where the two horizontal lines of the fess are nebuly. A shield formed of several such fesses, termed bars where in excess of one, is barry nebuly.

A line nebuly
An heraldic shield displaying Barry nebuly of nine azure and argent
Diagram illustrating nebuly construction

Construction

A nebuly line can be constructed from two parallel rows of circles, one row staggered with respect to the other, so that each circle is tangent to two circles in the other row. Each circle in the lower row should touch the two above at about 45 and 135 degrees and each circle in the upper row should touch the two below at 225 and 315 degrees.

Examples

The mediaeval arms of the Dauntsey family of Wiltshire, England, were barry nebuly. Its use in coats of arms can be seen in the cases of Jones and Munk, both Canada, FLEETWOOD BOROUGH COUNCIL, England and HYDE BOROUGH COUNCIL, England.

gollark: I remember reading about some weirdness with static vs dynamic linking.
gollark: Hmm, solution: ship some kind of shim layer which converts the native APIs to some other format, release that under the GPL, but then don't GPLize any code which connects via that.
gollark: PotatOS is free and open source?
gollark: I should ship tape shuffler too!
gollark: And yes, it is very chaotic, potatOS ships two incompatible binary object serialization libraries, its own fork of GPS with dimension/server support, elliptic curve cryptography with SHA256 but also separate non-cryptographically-secure checksums for some reason, and a ton of random programs, some of which are actually just inlined in the code.

References
  1. Nebuly - definition of Nebuly by the Free Online Dictionary, Thesaurus and Encyclopedia, thefreedictionary.com
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