Generation of magnified raster tiles using shift tiles to improve situational awareness

Maritime infrastructures are an important part of society in many aspects (safety and security, economy, environ- ment) and therefore require special protection. From ensuring uninterrupted global trade and economic stability to safeguard- ing national security and protecting coastal communities, the comprehensive situational awareness picture plays a vital role in preserving the safety and security of these vital assets. To improve the operators’ situational awareness, this work suggests a novel way to provide non-linear scaling of maps to enable legacy front-ends to provide a high resolution view of disconnected areas without requiring the user to change their viewport. So-called shift tiles are generated to scale different parts of given maps, allowing users to apply the desired scaling effect to any base map, regardless of the client being used.