Charts
Radar/Chart Radar User Guide
12-38 65900010
SevenCs vector based charts are displayed in all chart projections,
whereas CMAP is only displayed in Mercator projection. At high latitude
regions, using Polar Stereographic projection, CMAP charts are
suppressed and a permanent prompt
Chart Suppressed at High Latitude
appears. CMAP charts are restored when the chart enters a geographic
region where Mercator is allowed.
Chart Depths/Heights
The chart depths/heights window enables you
to change the default settings of own ship's
safety depth/height and shallow/deep shading
contours.
On a multi- node system any changes made in
Chart Depths/Heights are distributed and
persisted across all nodes.
Safety Depth and Height
The safety depth is the minimum depth required by an underwater object
for own ship to pass over safely. The minimum depth is the distance from
the water surface to bottom of own ship's keel, plus a safety buffer against
variations in the water level from the time the water was charted to the
present time.
The defined safety depth value is reflected in the Chart Legend Detail tab
folder.
The safety height is the minimum distance required by an overhead
obstruction for own ship to pass under safely. The minimum height is the
distance from the surface of the charted water to the lowest point of the
overhead obstruction.
The default values for Safety Depth and Height are 30 metres.
If the safety depth is set at a value less than the configured value of own
ship's maximum draft a
Safety Depth Shallow
Caution is displayed.
If the safety height is set at a value less than the configured value of own
ship's height a
Safety Height Low
Caution is displayed.
Summary of Contents for VisionMaster FT
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