solid black line chart doesn't need a permit
In the picture below the following charts are represented:
• green solid border - up-to-date chart with the valid permit
• green dashed border - out-of-date chart with the valid permit (or chart is not installed but
the permit is valid)
• solid yellow border - up-to-date chart with the permit that will be expired in less than a
month
• dashed yellow border - out-of-date chart with the almost expired permit (the permit will
be expired in less than a month), or chart is not installed at all and the permit is almost
expired.
ZOOMING
ENC cell contains geographical data to be used between a minimal scale and a maximum
scale. Vector data in an ENC is sorted both by data types (chart layers) and by scale, thus the
more precise the selected chart scale, the more details are displayed.
ECDIS includes a very important safety feature called ‘Over-zoom Notification’. If at any time a
chart or portion of a chart is displayed on the screen at a resolution greater than its maximum
scale (Over-zoom), the user will be visually notified by the chart scale indicator being
displayed with a yellow background. In addition a grey pattern will overlap the cell when the
scale of the display is two times the compilation scale of the cell. (Example: if the compilation
scale of the cell is 1/ 50 000 the grey pattern will be used for the scale bigger than 1/ 25 000).
75
To Next Page
Loading...
