Vector Chart

A digital nautical chart that represents navigational data using vector graphics, allowing for scalable and interactive mapping of maritime areas.

A vector chart is a type of electronic navigational chart (ENC) designed for use in modern marine navigation systems. Unlike raster charts, which are essentially digital images of traditional paper charts, vector charts use mathematical points, lines, and polygons to represent navigational features such as coastlines, buoys, depth contours, and shipping lanes. This allows the chart to be scaled and customised without losing clarity or detail, making it highly versatile for mariners. 

Vector charts are integral to Electronic Chart Display and Information Systems (ECDIS), which are mandated for use on many commercial vessels under international maritime regulations. These charts enable dynamic interaction, such as zooming, panning, and layering of information, which can be tailored to the navigator’s needs. For instance, a user can choose to display only critical navigational features or overlay additional data like weather patterns or vessel traffic. 

Another advantage of vector charts is their ability to integrate real-time data, such as updates to navigational aids or temporary hazards, ensuring that mariners always have access to the most current information. They are also designed to include alarms and warnings for dangers like shallow waters or restricted areas, enhancing safety at sea. However, their use requires proper training and understanding, as improper settings or over-reliance on digital systems can lead to navigational errors.