Vector Graphics Lecture Notes PDF
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Ohlone College
Monica Cappiello
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Summary
These lecture notes from Ohlone College cover vector graphics, including topics like terminology, scanning, digitizing images, file manipulation, file sizes, and formats. Units of measurement and examples of vector art design are also discussed.
Full Transcript
Ohlone College Vector Graphics Monica Cappiello E-mail: [email protected] Course Overview Introduce terminology. Demonstration of scanning, input devices and digitizing images. Demonstration of software tools Bitmap vs Vector Bit...
Ohlone College Vector Graphics Monica Cappiello E-mail: [email protected] Course Overview Introduce terminology. Demonstration of scanning, input devices and digitizing images. Demonstration of software tools Bitmap vs Vector Bitmap: Bitmap images—technically called raster images—use a rectangular grid of picture elements (pixels) to represent images. Each pixel is assigned a specific location and color value. Bitmap vs Vector Vector: Vector graphics (sometimes called vector shapes or vector objects) are made up of lines and curves defined by mathematical objects called vectors, which describe an image according to its geometric characteristics. Bitmap vs Vector File Manipulation Bitmap – any changes will have to be painted to make changes on image Vector – image can be mathematically changed Bitmap vs Vector File Size Bitmap – the more information the bitmap image has, the larger the file size Vector – no matter what size, the file size will remain the same File Formats There are four basic file formats: .ai – Illustrator format only for Adobe Illustrator .eps – encapsulated PostScript accepted by all page layout, word-processing, and graphic applications .pdf – Portable Document Format universal file format that preserves the fonts, images, and layout Units in Illustrator There are six units: Points – A measurement system used by printers and Desktop Publishing applications. 1 point = 1/ 12 pica Picas – A measurement system used by printers and Desktop Publishing applications. 1 pica = 1/6 inch Inches – A unit of measurement used primarily in the United States. 12 inches = 1 foot Millimeter - A unit of measure in the Metric system equal to 0.03937 inch Centimeter - A metric unit of measurement for length; 1 cm = 0.4 inches Pixel - In digital imaging, a pixel (or picture element) is the smallest item of information in an image Vector Art & Design Samples of vector art and design Vector Art & Design Vector Art & Design Logos Branding T-Shirt Designs Icons and Emojis Games Transfer Easily from Multiple Devices Q&A
