Displaying Differences At Chart Update; Displaying Differences At S-57 Chart Update - JRC JMR-7230-S Instruction Manual

13.14 Displaying differences at chart
update

13.14.1 Displaying differences at S-57 chart update

When the S-57 chart is updated, only the latest object of the last Update No. is displayed in highlight
mode.
Until the update is approved, the target object is displayed with a highlight marker.
When the update is approved, the highlighted display is cancelled.
The following table shows the drawing patterns of pre-approval and post-approval for each update
content.
Update content
Addition • When highlighted display of update is set to ON,
an addition marker is displayed for the object to be
added.
• When highlighted display of update is set to OFF,
only the object to be added is drawn.
Deletion • When highlighted display of update is set to ON, a
deletion marker is displayed for the object prior to
deletion.
• When highlighted display of update is set to OFF,
the target object is not darwn.
Change • When highlighted display of update is set to ON, a
deletion marker is displayed for the pre-update
object and an addition marker is displayed for the
post-update object.
• When highlighted display of update is set to OFF,
only the post-update object is drawn.
Addition marker
Section 13 Operating a Chart (option)
Pre-approval drawing pattern
Deletion marker
13-36
Post-approval
drawing pattern
Only the added
object is drawn.
Deleted objects are
not drawn.
Only the object after
the change is
drawn.