BIND To align the baseline of text so it follows the contours of a path. BITMAP A digital image composed of pixels (.bmp); technically, an image containing only black and white (see also “image,” page G.765). BITMAPPED FONT A font made up of characters composed of pixels, rather than vector data. Fonts displayed on a computer screen are bit- mapped fonts, for example, and usually aren’t suitable for printing. BLACK AND WHITE A method of digital imaging that uses pure black and pure white pixels. The frequency of black or white pixels create the illusion of shades. BLEND A smooth transition of shape and color between two vector objects through intermediate objects created by Canvas. BOUNDING BOX An invisible rectangle that defines the boundaries of an object. Canvas displays an object’s bounding box when the object is selected. BULLET A special text character, usually a filled circle (•), available in many fonts, especially symbol fonts. BUTTON A pushbutton-like image in dialog boxes where you click to designate, confirm, or cancel an action. CANVAS TEMPLATE A Canvas document that includes options and settings and is used as the basis for new documents. CCITT Consultative Committee on International Telegraphy and Telephony; its standards include data transmission formats. CENTER EXTENSION The distance that Center dimension lines extend beyond the dimensioned object. CENTER GAP The space between a Center dimension crosshair and the lines that extend from it. CENTER LENGTH The Center dimension crosshair length. CHANNEL In digital images, a layer of primary color in a full-color image. For example, an RGB image has at least three color channels (one each for red, green, and blue) and a composite channel, which adds the three channels together to create a full-color image. CHANNEL MASK A channel that creates transparency based on the the luminance of pixels in the channel. It can be applied to any type of object. CHARACTER Any symbol, such as letters, numbers, and punctuation, that can convey information. Some characters can be displayed on the monitor screen and printed on a printer. CHARACTER STYLE A set of attributes, such as color, typeface, and style, that can be applied as a group to text characters. Vector (left) and bitmapped fonts R A bounding box of a circle A Center length B Center gap C    Center extension A B C
Canvas 8 Help: Glossary (2 of 15)      Page #760