| 摘要 |
<p>Stroke display apparatus generates symbols or characters on a display screen (37) and permits dynamic rotation or translation of those characters without placing a computation burden on the host processor (10). The characters are represented as a series of connected line segments, or blank segments, each having a characteristic direction or vector angle. Each of the line segments is generated by successively adding incremental A x and A y steps (76) to an x, y position until the desired length is achieved. The character is rotated by adding (at 70) a predetermined offset angle to each characteristic vector angle and then by converting the rotated vector angle into incremental A x and Δ y steps. Character translation is accomplished by including an extra, typically blanked, line segment command before the character is drawn.</p> |
