摘要
兰勃特投影和高斯投影是我国常用的两种等角投影,两者之间的坐标转换是实际应用中常见的基本问题。文章针对目前使用的反解析变换法计算解决复杂及正解析变换法精度偏低的问题,采用Mathematica数学软件对正解析变换公式重新推导,得出坐标变换公式,经验证,在4°(纬差)6°(经差)的转换区域精度达到1mm,能够满足测量和制图精度要求。
Gauss projection and Lambert projection are two equal-angle projections frequently used in China.The coordinate conversion between them is a basic problem in application. To the questions of the complexity of negative analytical transformation method and low precision of positive analytical transformation,we derivate the formula using software Mathematica and find that when the area is limited in four latitude difference and six longitude difference the conversion accuracy can up to 1 mm,which can meet the requirements of surveying and mapping precision.
出处
《河南城建学院学报》
CAS
2016年第2期74-79,共6页
Journal of Henan University of Urban Construction
关键词
高斯投影
兰勃特投影
解析变换法
转换精度
Gauss projection
Lambert projection
analytical transformation
conversion accuracy
