Raster Charts

Electronic charts are normally one of two types, vector or raster charts. For reasons described on our website, SEAiq is primarily intended for use with vector charts.

However, in certain situation raster charts can be useful. Two examples are: (1) when vector charts are not available for the desired areas, and (2) when using specialized raster charts such as those generated from satellite imagery.

Settings

• Prefer Raster (BSB/KAP) Charts : When enabled, raster charts are preferred over vector charts. Otherwise vector charts are preferred. One exception is that the vector SEAiq Base Chart of the Earth is always used.
• Use Red for Own-Ship : When enabled and viewing raster charts, a red color is used for Own-Ship (and related objects) in place of the normal black color. See Settings / Vessels for other settings that can affect display of Own-Ship.
• Alternate Own-Ship Dusk Colors : When enabled and viewing raster charts in Dusk color mode, a black color is used instead of the normal white color. This is useful when viewing NOAA raster charts which use light background for dusk. This option is enabled by default. Note that Use Red for Own-Ship takes precedence over this setting. See Settings / Vessels for other settings that can affect display of Own-Ship.