272 Character PrintingControl Panel OptionA new option has been added to the control panel under the Graphicscategory. The new option, Vscale, determines whether or not vertical blockcharacters will be scaled to match the difference between the horizontal andvertical print densities. The option is necessary to be fully compatible with oldQMS Code V version 1 boards that are still in the field.Block characters are build to be printed horizontally at 60 x 72. When thecharacters are rotated and printed vertically, it is necessary to scale thecharacters to maintain the cell size of the character. Some QMS Code Vversion 1 boards do not handle this scaling, so that when a 5 x 7 blockcharacter is rotated and printed vertically, it will actually be 4 x 8. when theVscale option is turned off, we will now emulate this.Block CharacterBlock characters are printed by putting the characters to be printed into the portion of a Graphics Pass. Thus, the Block Character Command isthe same as the Graphics Pass Command.Each block character is printed within a window which includes an appropriateamount of space for character separation. The block character window sizeranges from 0.1 inches (0.25 cm) to 9.9 inches (25.15cm) in increments of 0.1inch (0.25 cm). the character window includes 1 dot row or column ofintercharacter space for every 0.1 inches in window size. That is, if theGraphics Pass command is ^M0505000, then the character window size willbe 0.5 x 0.5 inches, including a 5 dot-column space to the right of thecharacter (see Figure 1 on page 27).Figure 1. Character Window
