This paper introduces the method, accuracy and attention issue concerning measurement of tilt of building by using forwardintersectionmethod, through the practice of an example.
通过建筑物倾斜观测实例，介绍了应用前方交会法进行倾斜观测的方法、精度要求及注意事项。
2
A new method was put forward to find the intersection line and determine its visibility of general position lines and planes using overlapped projection lines.
提出用重影线法判断两重影直线的相对位置和求解一般位置直线与平面相交求交点判别可见性的新方法。
3
The intersection visibility rule of a line and general plane was concluded and a new judge method on intersection visibility of them was also put forward in this paper.