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What is Vector Art and why do we need it?

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What is Vector Art and why do we need it?

Post by LeahG on Mon 10 Jan - 20:21

SOURCE

http://www.aspexsoftware.com/aspex_draw.htm

" A paint package has limitations due to the fact that the image is described and constructed from tiny pixels rather like the dots in a newspaper picture. As you enlarge a painted image, it becomes fuzzy or “pixellated” , straight lines become like staircases and curves become angular.

Object-based drawing software does not have this limitation. As you enlarge an object-based image, it stays sharp and its shape does not change. You can manipulate any element of your drawing separately from any other part of the drawing, copying, stretching, resizing, turning and repositioning it. This is a very flexible and logical way to construct images and removes much of the frustration students may feel when using a painting package."



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Re: What is Vector Art and why do we need it?

Post by Kathy on Mon 10 Jan - 21:06

Pixel based images become "pixelated" because when you tell the computer to enlarge the image, is enlarges the pixels. It keeps the same number of pixels as your original image had, but makes each of them bigger. Therefore, you begin to see each pixel as a square, and get jagged edged lines, etc.

Vector based programs use an algorythm (sp?) to create your image, so when you tell it to enlarge the image, it will recalculate how many tiny little pixels are needed to make a larger image. The size of each pixel stays little, and you don't see anything but a nice smooth edge. (Don't you love fancy math?)

In fact, in a vector based program, you are not really drawing. What you are doing is telling the computer to draw for you. You are using the tools to say, "Computer, make a circle that is XX wide and XX long." The computer then draws it for you.

In this manner, you can create an image of any size and it can be enlarged to any other size without loss of quality. Your postage stamp can become a billboard!
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Re: What is Vector Art and why do we need it?

Post by Simon Lake on Sun 8 Jan - 9:54

Big money up for grabs here.....
http://www.freelancer.com/projects/1371349.html
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Re: What is Vector Art and why do we need it?

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