Mercator coordination transform between different standard parallel in ECDIS
Yuanhui Li · Journal of Dalian Maritime University · 2003
Chart display speed is a very important performance figure in ECDIS. Hence, during the design and development of the ECDIS, programmers should find out efficient algorithms to improve it. In this paper, we analyze different algorithms of Mercator Coordination Transform between Different Standard Parallel and find that the core of the transform is a linear. We discuss about the time complexity of the transform and then bring forward an efficient way for chart data store and coordination transform algorithm. In our application, it is proved that this algorithm can improve coordinator transform speed prominently..