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Understanding Bitmapped Font Magnification Factors The font instructions in this chapter contain parameters for entering the height and width of printed characters. The values are always entered in dots. When entering these values for bitmapped fonts, use the following formula: Base Height x Magnification Factor = Height Parameter Value. (Same principle applies to width.) EXAMPLE: Base height of bitmap character is 9 dots. Base width of bitmap character is 5 dots. To magnify the character 3 times, the height parameter is 27 the width parameter is 15.

 

Proportional Spacing Proportional spacing is different than fixed spacing. In Table 1, the Intercharacter Gap (space between characters) is constant for fonts A thru H. The spacing between all characters is the same. For example, the spacing between ‘MW’ is the same as between ‘IE.’ The baseline is the imaginary line on which the bottom (base) of all characters (except any decenders) rest. The area between the baseline and the bottom of the matrix is used for any character “descenders.” Baseline numbers given in Table 1 define where the baseline is located in relationship to the top of the matrix. For example,

 

 

Bitmap Font Size Alphanumeric field instruction (^A) parameters h and w control the magnification and therefore, the ultimate size, of the font. The parameter is specified in dots, but ZPL II actually uses an integer multiplier times the original height/width of the font. For example, if you specify