Gossling, T.H.2014-10-212014-10-2119891467-8659http://dx.doi.org/10.1111/j.1467-8659.1989.tb00466.xThe linetype attribute in GKS and PHIGS is required to cover a wide variety of renderings of the polyline primitive. The results are strongly implementation-dependent, widi virtually no user control. Splitting linetype into a one-dimensional line-pattern and a two-dimensional line-picture gives much greater flexibility, without the need to go through a registration process for every new style. The line-picture attribute, consisting of a single glyph repeated at intervals along a linear primitive, can answer many requirements in draughting for process industries, and should also be applicable elsewhere.10.1111/j.1467-8659.1989.tb00466.x129-132