在公路工程中横断面测量贯通整个工程始终,从前期勘测到竣工验收期间需要进行多次测量,数据处理量大。在工作中全站仪外业采集的测点数据通常采用大地坐标系,而横断面的绘制采用的是相对坐标系,基于CAD平台进行二次开发探讨通过从数字图中拾取测点解算出对横断面数据至相桩号并输出到记事本中方便批量绘图。 In highway engineering, the cross-section measurement runs through the whole project from beginning to end, and needs to be measured several times during the period from the early survey to the completion inspection. The data processing capacity is large. In the work of total station field collection of measuring point data usually use the earth coordinate system, and the cross-section of the drawing is relative coordinate system, based on the CAD platform for secondary development by measuring points from the digital map solution to Cross-sectional data to phase stakes and output to Notepad for easy batch drawing.