Graphics Reference
In-Depth Information
ease the tension are “(1) the overview + de-
tail views - displaying overview and detailed
information in multiple views, (2) zoomable
views - displaying objects on multiple scales,
also known as multiscale displays, and (3) focus
+ context views - displaying local detail and
global context in integrated but geometrically
distorted views” (Chen, p. 118). For example,
the interactive focus + context visualization
(Trapp, Glander, Buchholz, & Döllner, 2008)
facilitates the exploration of complex informa-
tion spaces. At runtime, the generalized context
representation is combined with a full-detail
representation within a single view, with the
use of the lenses for a 3D generalization that
direct users attention to the detailed focus re-
gion. Nathan Yau (2011, 2013) emphasizes the
role of visualizing patterns, proportions, spatial
relationships, and differences in visual explana-
tions and telling stories with data.
Gigabytes of data and thousands of web pages
that have been produced for the big projects
must be analyzed to select parts of the data or
artifacts that contain interesting features, and to
support different users of the measured systems.
Because of the big scale of the systems, tools
for visualizing and animating (to show changes
over time) the data sets in network events are
produced, to allow the users to view data sets
in three dimensions as if they were physical
objects and to move around the data. Visualiza-
tions of different kinds are of use in businesses,
companies, and enterprises, and serve for media
development and applications; they address the
needs of designers involved in software produc-
tion and management, and help to deliver and
manage information. With visualization tools,
network performance visualizations are made
through rendering the data into visualization,
abstraction, and modeling of the data collec-
tion, mining the sources, and distribution of
information.
A great number of web applications that can
be accessed over the Internet serve various web
browsers.
Search engines reveal information by display-
ing a heading and a list of websites and their ad-
dresses, and the results are listed as keywords. A
blog is a type of a website where one can reveal
personal information concerning one's private life
from her/his perspective. Discussion boards are
textual sites in a web browser. Users register and
then write posts, ask question, and then other us-
ers provide answers to those questions, often used
in various forms of education. Ecommerce sites,
with written texts, graphics, and pictures of the
objects for sell allow the users to see a webpage
in a web browser organized by software called a
shopping cart.
A wiki system is used for annotation, com-
ments, discussions, and search. Ward Cunning-
ham released the first software for wiki in 1995.
Users can access wiki, add to, or modify, often
as collaborative or community websites. The
collaborative website Wikipedia, launched in
2001 became in 2007 one of ten most popular
websites in the world, and on its 10
th
anniversary
it was called in the German newspaper Die Zeit
(www.zeit.de/) “the greatest work of mankind”
(Zeit Online, 2012).
When everyone can create characters for use
in Wii Nintendo games that look like themselves,
their friend, or favorite celebrity, one can ponder
over the use of avatars in visualizing knowledge.
5.1. Concept Visualization
in Visual Learning
Craig Howie created visual explanation of the
internal symmetry in simple or infinite groups
as “A game about the group theory” for the Vi-
sual Learning class. He made learning playful
by designing things to be learned in the form
of a game. This project related to the Abstract
Algebra class. It is a presentation of the basic
concepts of the group theory, a mathematical
