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Unformatted text preview: spreadsheet or a database. Among the most popular types of
graphs and charts used for graphical representation of numerical data are line
graphs, bar charts and pie charts (see Figure 15.10). Line graphs contain one or
more lines connecting data points plotted on a horizontal and vertical axes. Bar
charts use one or more bars on a horizontal and vertical axes to show values by the
lengths of the bars. Sometimes^ bar is^divided into component parts; and the sum
of all the parts equals the total length of the stacked bar. Pie charts use one or more
circles divided into sectors to show the component parts of a whole. Single circles
can be used, or several can be drawn to compare changes in the component parts
over time. Regardless of the type of representation used, a user can vary colors,
add and delete lines and headings, change scales and edit the graphs or charts
suitably to get the desired results. Some presentation graphics software also have
animation capability that enables users to make the graph or chart dynamically
change on the screen to depict increase or decrease of figures over time.
Presentation graphics software is very useful for analysts and decision makers
because it allows them to gain a better understanding of the relationships, changes, and trends that are buried in their numeric data. This helps them in making more
This feature enables the users to create their overall designs and pictures much
faster by allowing them to use ready-made graphic objects or images, supplied
with the software. For example, the drawing software comes with a set of readymade shapes like line, rectangle, circle, etc. which the user can use in his/her
design as per the requirement. The user can select a desired object from the set of
given objects and drag it to the desired position on the drawing area and then drop
it there to add it to the overall design. The drag feature also allows the user to
suitably change the size or the shape of the object to match with the overall design.
It also enables the user to glue multiple objects together such that they stay
connected and move together if one of them is moved on the drawing area.
Similarly, the painting software comes with a clip art library of stored images. The
user can select a desired image from the clip art library and...
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This document was uploaded on 04/07/2014.
- Spring '14