【摘要】 针对东西向公路工程控制测量应用高斯投影时投影带边缘变形过大、不能满足工程施工放样需要的问题，提出了在东西向公路工程控制测量中采用双标准纬线兰勃特正形圆锥投影的新想法，对兰勃特投影的应用效果进行了检验分析，给出了大地坐标与兰勃特平面直角坐标之间数据相互转换的实用公式。更多还原

【Abstract】 Aiming at the problem that the margin deformation of the projection area being too large,not satisfying the need of engineering construction layout for the application of Gauss projection to the control survey of the east west hihgway engineering,this paper presents a new idea of adopting the dual standard latitude Lambert ortho conic projection in the control survey of east west hihgway engineering.It tests and analyses the application effect of Lambert projection.It also gives the practical formulae for the mutual transformation of data between the geodesic coordinate and the Lambert planar rectangular coordinate.更多还原