HD-MAX Echo Sounder User Guide
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(2) Chart display parameters
Figure 11-6 Chart display parameters
Sounding setup: The sounding standard displayed by the chart. For example,
the area with a sounding less than 2m belongs to shoal waters, presenting in
dark color. The areas deeper than 30m belong to navigation safety area,
presenting in light color. And the areas with a sounding greater than 30m
belong to deep water area.
Cartographic symbols: There are two sets of graphic symbol libraries
displayed by electronic chart. The first type is traditional paper-based
electronic chart and the other type is simplified symbol figure.
Contextual model: While sailing on the sea, the electronic chart shall be
displayed in bright color at day time. During nights with dark light, however,
electronic charts shall be displayed in darker color in order not to affect
sailing at night.
Five color patterns are generated respectively, namely:
sunny day pattern, day pattern, cloudy day pattern, evening pattern and night
pattern.
Display elements: Electronic charts include abundant information on icons,
symbols, text information, etc., and classify the information displayed. Some
of them are essential and are classified as basic elements. Some of them are
as standard information since they have to be displayed. Standard element
contains the basic elements. All-element display refers to show all
information.
Map color: Namely the display colors of sounding areas. Most parts of the
electronic chart are sounding areas. In order to distinguish different sounding,
the chart is to be displayed in four colors or two colors.
