The curve should be three-dimensional one, with the high point in the center and curved lines radiating in all direction, somewhat as streamers from a maypole.
曲线应该是三维的,其高点在中心,向各个方向辐射,有些象从五月柱上散出的彩带。
2
The curve should be three-dimensional one, with the high point in the center and curved lines radiating in all directions, somewhat as streamers from a maypole.
曲线应该是三维的,其高点在中心,向各个方向辐射,有些象从五月柱上散出的彩带。
3
Because popularizing and spreading of computer, especially exploiting of GPS, it is convenient and lessening Errors that surveying curvecenterpoint from control point.