Research On Coordinate Transformation Model And System Implementation

Status of the spatial location information in people’s daily lives are becoming more and more important at the moment and a great convenience to people’s economic life. The spatial location of the most important representatives is navigation and positioning, which is the most well known is the GPS, Compass also our rapid development, the future of China will eventually enter the era of rapid development of location-based services. Accompanied by the GPS coordinates provided to the coordinate transformation of the existing problems, coordinate transformation is necessary in the measurement data processing work to achieve their mutual conversion problem to be solved is the following.This article describes the geometry of the Earth ellipsoid, datum caused by different parameters in different coordinate conversion brought the issue. Manifestation is the outward manifestation of a specific coordinate coordinates the construction of China’s special conditions during the coordinate points. Analytical measurement coordinate transformation model home and abroad, to find conversion algorithm for calculating the speech, the use of the computer to complete the coordinate conversion and conversion parameters calculated to be transferred to other point conversion, and conversion data accuracy analysis.With high-level programming language C # using a suitable computer algorithm, each module of the coordinate transformation and ultimately integrated conversion system. Coordinate conversion based on the reference division two conversion methods: under the same reference coordinate conversion and down-conversion between different forms of different benchmarks. Another form of additional functions, adding Gauss projection and angle change with conversion. The system is designed with user-friendly as possible, both in need when prompted with the input prompt, proper operation of the user’s convenience. The system also has a single point conversion and file batch conversion feature, I believe you can make users more pleasant to use it.