| 摘要 |
The chord linear-analysis apparatus includes an azimuth circle (1). The azimuth circle includes a frame line with a ground line (10) and a series of skylines (21-28) within. The skyline extend from the ground line to the from line. The ground line is divided into a series of segment ground lines (11-18). The enclosed region of the ground line is a ground region. The region between the frame line and the ground line is a sky region (31-38) which can be divided into eight districts using the sky lines. The operator can write carious stroke gesture of the azimuth circle. The stoke gestures going through three districts, or two districts nd the ground region to get an intersected start and end point. |
