Adobe Illustrator CS is a versatile program that can be used to create detailed illustrations both for print and the Web.Illustrator includes industry-standard drawing tools that are often used to create digital artwork such as company logos,product packaging, andcartoon characters.Because drawing in Illustrator is quite different from drawing in real life, these tools can be a little difficult for a beginner to master at first. After introducing the basic principles of vector illustration, this chapter will help you get started by covering the Illustrator interface and its tools in detail.
The Illustrator Interface This chapter provides a general overview of the main features of Illustrator CS. The Illustrator interface can seem a little daunting at first with its mix of menus, toolboxes, and palettes; this chapter will introduce you to the various screen elements through detailed explanations and simple examples. All computer graphics are either vector or bitmap. Vector images are created using strokes and fills that are defined using mathematical equations. Points are joined to create lines and lines are joined to create objects. Because vector images are defined using mathematical equations, vector images have small file sizes and maintain their resolution or quality even when magnified. The downside to vector images is that they cannot be made to look very realistic. Vector and Bitmap Images Bitmap images, on the other hand, are recorded using individual pixels. The higher the image resolution,the more pixels are used to record the image; this creates sharper looking images. The opposite is true for images with lower resolutions; these often appear blurry or poorly detailed. Bitmap images are used for realistic images such as photographs and scans. When you magnify a bitmap, the image loses sharpness.If magnified sufficiently, the pixels that make up the image become discernable.
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