The importance of
greenhouse construction in some parts of the
south-east of Spain has led to the creation of a European Standard for
the design and construction of greenhouse structures for commercial
production
(UNE-EN 13031-1).
The design process of
a tunnel greenhouse over an
irregular surface can be viewed as the construction of object-oriented
programs,which resolves a problem for a specific setting. Taking this
point of view, the component elements of a greenhouse (tunnel, base
module, pieces) can be treated as the objects and programming
primitives that are used in the process of program construction. This
work demonstrates modeling using object-oriented techniques
(OOT) based upon the standard XML notation for simulating
multitunnel greenhouses.
XML is a W3C technique (http://www.w3.org)
for representing and describing information. It is used as a means of
exchanging data between programs (XDR, eXchange Data Representation).
It is also frequently used in engineering for data modeling and the
definition of specification documents since it is supported on XML-Schemas, a language for grammar
definition in XML documents.
This page presents
gXML (Greenhouse XML), a language for document
specification
(templates) of geometric
characteristics of a greenhouse. The gXML
language is written in XML-Schemas notation, which allows the elements
of a new specification language in XML to be defined. The elements make
reference to the structural parts of a greenhouse (surfaces, posts,
guttering) and the physical parts (sorts of plastic, absorption
coefficient, refraction index, type of post, composition, amongst many
others).