Menu item Description OptionsBusiness Services When this menu itemis set to ON, symbolsindicating the locationof a business will beshown.• OFF• ON (default)Aerial Photo Overlay Determines the areathat will be displayed foraerial photo overlay.• On Land and Sea• On Land (default)Roads Determines whethermajor coastal roads aredisplayed on the chart:• OFF — coastal roadsare NOT displayed.• ON — coastal roadsare displayed.• OFF• ON (default)Additional Wrecks Determines whetherextended information fornewwrecksisdisplayed:• OFF — extendedwreck information isNOT displayed.• ON — extendedwreck information isdisplayed.• OFF• ON (default)6.8 Moving around the chartYou can move around the chart using the pan and zoom controls.A combination of zooming and panning is required to move aroundthe chart and display an area at the appropriate scale.Note: When you pan the chart, or when you change the scale inautorange mode; the motion mode is suspended.Panning moves the displayed chart to a different area. Whenthe cursor reaches the edge of the screen, the chart pans.When you zoom in, the chart scale changes to show a smallerarea in more detail. Conversely, if you zoom out the chart areadisplayed is increased but the detail is reduced.Note: The cartographic detail available on charts variesaccording to the chart and the chart scale. Some areas providedetail at smaller scales than others.A feature of the chart is ‘autoscale’. If you select a chart scale thatdoes not have cartographic detail in some areas, the chart will usethe most detailed level available for the surrounding area and stretchit to fit the selected scale. This means that you will never have blankor hatched areas on your screen. However there may be somemis-alignment of objects which cross the chart boundary in this area.Zooming in and out1. To zoom in closer to the picture, press the RANGE IN control.Using the chart 59
