vector and illustrator 03
TRANSCRIPT
VECTOR GRAPHICSBrief discussion about vector graphics
Vector Graphics• a method of generating images that uses
mathematical descriptions to determine the position, length, and direction in which lines are to be drawn.
Vector Graphics
• an alternative to raster graphics
THE ANATOMY OF ILLUSTRATION
An ILLUSTRATION is composed of different vector OBJECTS
Illustration: Objects:
Each OBJECT have one or more PATHSPaths:
PATHS are composed of LINE SEGMENTS that usually have ANCHOR POINTS at each end
Line Segments and Anchor Points:
Anchor Points
• … are the fundamental components of any vector image
• … define the position and curve properties of a line segment
Bezier Curve
• Anchor Points may or may not have CONTROL HANDLES
• Each Point has one or two Control Handles
Objects
• Stroke can be applied to the PATH of an object • Fill can be applied to the area enclosed by the
PATH
• Stroke may have properties such as weight, color, Solid vs. Dashed, Line Caps or Corners
• Fill may have properties such as Color, Uniform or Gradient, Pattern or Texture
Common Vector Formats• SWF (Shockwave Flash)• SVG (Scalable Vector Graphics)• AI (Adobe Illustrator) • CDR (CorelDRAW) • CMX (Corel Exchange) • CGM Computer Graphics Metafile • DXF AutoCAD • WMF Windows Metafile
Solid Dashed None Pattern*
Stroke Examples:
LinearGradient
RadialGradient Pattern Texture*
Fill Examples:
Path and Subpaths
• Open or Closed
Open Closed
RASTER VS. VECTORComparison on the two types of images
Raster Image Vector Image
WHEN TO USE VECTOR GRAPHICS?
Resolution
IndependentYou can increase and decrease the size of vector images to any degree and your lines will remain crisp and sharp.
RasterizinggnizirotceV
Vector images can be easily converted into raster images but not vice versa.
No background Vector objects can be placed over other objects, and the object below will show through.
Vector Raster
DISADVANTAGES OF VECTOR GRAPHICS
Cartoonish PropertyThey're unsuitable for producing photo-realistic imagery.
TRNOnce converted to Bitmap format, it loses all its features.
ADOBE ILLUSTRATOR
HISTORY OF ADOBE ILLUSTRATOR
Initial ReleaseVersion 2-5Version 6-10Versions CS (11) & CS2 (12)Versions CS3 (13)
PARTS OF ADOBE ILLUSTRATOR
PartsArtboardScratch areaToolboxPallets