Page 255 - DCAP404 _Object Oriented Programming

Object-oriented Programming

Notes
or store mannequins that have come to life. As contradictory as it sounds, when animators
exaggerate the movements and expressions of their characters, they appear more lifelike
and realistic.
Generally, the average height of a man or a woman can be measured as seven heads tall.
If your goal is to create and animate the ideal male and female, then consider modelling
them eight heads tall. Stretch their proportions first and then use them as your guides.
Superheroes are often portrayed as very tall with tiny heads.
Some artists prefer to start with the smallest unit possible: the point, or vortex. After
placing a series of these vertices, one can connect them as a spline or create polygons from
them. Splines are flexible line segments defined by edit points or vertices. Sometimes
splines are referred to as curves. A series of connected splines make a wire mesh. Adjoining
wire meshes are patches. Thus spline modelling lends itself to the patch modelling method.

Preparing the human model for facial expressions and dialogue is an essential part of the
3-D animation process. A base model with a neutral expression is the starting point. The
base model should have at least three sets of parallel lines for each wrinkle. Approximately
56 shapes or morphs, which include the mouth shapes for dialogue, should be enough for
the majority of facial expressions.
Conventional art materials such as charcoal, paint, clay, fibre, and so on, are tactile. The
artist who works with these has an emotional link that is often lacking when compared to
the one who relies on hardware and software. The computer artist is forced to instill the
quality of emotion into a medium that is for the most part cerebral. This is one of the
greatest challenges. Without emotional content, the work will appear cold and removed
from the human experience. Unlike other artists, computer animators work mostly in the
mental realm to put feeling into their work.
If only animators could breathe life into their creations, would life not be one big comics
book to sit back and read?
Book courtesy: Wiley Dreamtech India P Ltd.
Onto the next generation of Web-based technology
WEB services is an umbrella term. It describes a collection of industry-standard protocols
and services used to facilitate a ‘base-line level of interoperability’ between applications.
Which, in other words, means all different systems can get talking over the cyberspace.
“Building XML Web Services for the Microsoft .NET Platform” by Scott Short deals with
the basic building blocks of XML Web services, viz. Simple Object Access Protocol (SOAP),
Web Services Description Language (WSDL), Universal Description, Discovery, and
Integration (UDDI) and so on. There’s more:
WSDL documents can be intimidating at first glance. But the syntax of a WSDL document
is not nearly as complex as that of an XML Schema document. A WSDL document is
composed of a series of associations layered on top of an XML Schema document that
describes a Web Service. These associations add to the size and the perceived complexity
of a WSDL document. But once you look underneath the covers, WSDL documents are
rather straightforward.

HTTP is by nature a stateless protocol. Even with the introduction of the connection keep-
alive protocol in HTTP 1.1, you cannot assume that all requests from a given client will be
sent over a single connection. ASP.NET provides a state management service that can be
leveraged by Web Forms and Web services.
A well-known object accepts method requests without requiring the client to first formally
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