Transcript What is a Graphic?

Vector Graphics
2.01 Investigate graphic image design.
Vector Graphics
 Vector graphics are created from
mathematical formulas used to define lines,
shapes and curves.
 Edited in draw programs
 Shapes can be edited by moving points
called nodes (drawing points)
Node
Handle
Examples
Original Image
Resized
Image
 More examples
 http://qvectors.com/
Shapes that
make up the
image.
Uses of Vector Graphics
 Graphics that will be scaled (or resized)
 Architectural drawings and CAD programs
 Flow charts
 Logos that will be scaled (resized)
 Cartoons and clip art
 Graphics on websites
 Because they have very small file sizes.
 This allows them to load quickly.
 Fonts and specialized text effects
Advantages of Vectors
 Resolution Independent
 Regardless of how much the image is
enlarged or reduced, the image definition
and quality remain the same.
 Small File Sizes
 Easily transferred over the Internet.
Disadvantages of Vectors
 Lower color quality than raster images.
 They do not support as many colors.
 Not good for photographic images.
 Click to see an example.
Popular Vector Graphic Software
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Xara Xtreme
Adobe Illustrator
CorelDraw
Inkscape – open source software similar
to Adobe Illustrator.
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Common Vector File Formats
 AI – Adobe Illustrator
 Industry standard used by developers of vector
graphics.
 Used to create, save, and archive original artwork.
 EPS – Encapsulated Postscript
 Meta Graphic
 Graphics developers generally save a copy of the AI
file in EPS format because it can be opened by
computers running different operating systems.
 Preferred format for vendors/clients who use the
graphics in publications due to its portability.
Meta Graphics
 Can contain vector and raster data.
 Shapes in vector graphics can be filled
with textures and patterns that are raster
graphics.
 Useful when layering text on top of raster
graphics.
 Examples
 WMF – Windows Metafile
 EPS – Encapsulated Postscript
More Vector Formats
 SVG – Scalable Vector Graphics
 Standard format created by W3C
 Versatile, all-purpose vector format
 PLT – Hewlett Packard Graphics Language Plot File
 CDR – Corel Draw
 DXF – AutoCAD
 WMF – Windows Metafile