平曲线 纵曲线 里程之间的关系道路中线是一条空间曲线,其在水平面的投影是平曲线,在竖直面的投影是纵曲线.想问下它们之间里

重新在图面中提取平曲线信息,然后保存后,在进行纵断面设计

　　Horizontal curve design is based on the paper alignment results, decide on the routes centerline mileage Stake, measure the intersection referred for horizontal curve design, and according to the terrain, terrain, and other artificial structures necessary plus pile. Profile Design is set based on topographic maps and routes each pile in the pile to determine ground elevation terrain mapping and complete profile view profile design. Cross-sectional design is based on the topographical map and the route to be piles, each pile terrain rendering cross-sectional design. Retaining wall design includes checking the stability of retaining wall construction plans drawn. Pavement structure design based on a given level of traffic information and road pavement type selection and reasonable design of the pavement structure.
　　人工翻
　　望采纳

弧长20米.弧长等于曲线弧度乘以曲线半径

1、 缘和曲线： Lb1 0 {K,D} ①T=A2/R ②L=J（K-O）+T ③B=T2 /2/A2 *180/π ④M=（L-T）-（L5-T5）/40/A4+（L9-T9）/3456/A8-（L13-T13）/599040/A12+（L17-T17）/17542600/A16 ⑤N=（L3-T3）/6/A2-（L7-T7）/336/A6+(L11-T11)/42240/A10-(L15-T15)/9676800/A14+(L19-T19)/3530097000/A18 ⑥I=(L2-T2)*180/2/A2/π ⑦X=C+Mcos(Q-ZB)-ZNsin(Q-ZB)+Dcon(Q+ZI+S)◢ ⑧Y=F+Msin(Q-ZB)+ZNcos(Q-ZB)+Dsin(Q+ZI+S)◢ Goto 0 注：A：缘和曲线参数 R：起点半径 J：曲率半径判定值（当曲率半径由小到大取1,否则取-1）（当起点半径到终点半径是由大或无穷大到小取+1,反之则取-1） K：欲求点里程 O：缘和曲线起点里程 C：缘和曲线起点X坐标 Q：起始方位角（当J=-1时,方位角应+180. ） Z：偏角判定值(当J=1时,左偏为-1,右偏为1；当J=-1时,左偏为1,右偏为-1) D：距中桩的距离 S：斜交角度 F：缘和曲线起点Y坐标 2、 圆曲线 Lb1 0 {K,D} ①L=K-0 ②X=C+R[sin(Q+L/R*180/π)-sinQ]+Dcos(Q+L/R*180/π+S)◢ ③Y=F-R[cos(Q+L/R*180/π)-cosQ]+Dsin(Q+L/R*180/π+S)◢ Goto 0 注：K：欲求点里程 O：圆曲线起点里程 C：圆曲线起点X坐标 R：圆曲线半径 (左偏为负) Q：起始方位角 D：距中桩的距离 S：斜交角度 F：圆曲线起点Y坐标 3、 直线 Lb1 0 {K,D} ①L=K-0 ②X=C+LcosQ+Dcos(Q+S)◢ ③Y=F+LsinQ+Dsin(Q+S)◢ Goto 0 注：K：欲求点里程 O：直线起点里程 C：直线起点X坐标 Q：起始方位角 D：距中桩的距离 S：斜交角度 F：直线起点Y坐标

这个是每个转点的缓和曲线或者直接圆曲线的起点和终点,方便你看这个地方就是转弯了或者这个地方是直线了的意思

有点复杂

竖曲线的形状,通常采用圆曲线或二次抛物线两种.而平曲线包括圆曲线 缓和曲线 直线