OpenSeaMap-dev:Splitscreen

Mobile apps needs a split screen:

Chart at left side

Navigation data at right side

For an optimal workflow, we need a specific userfriendly "look and feel" for chart, nav data and menu.

Chart

Split screen left side, 80%

Navigation data

Split screen right side, 20%

Data from NMEA ship navigation by WLAN.
(alternatively by internal GPS)

data	prio	Nav	WPT	en	de	remarks
COG	1	x		course over ground	Kurs über Grund
SOG	1	x		speed over ground	Geschwindigkeit über Grund
DBS	1	x		depth below surface	Tiefe unter Wasserspiegel	alternative DBT
ETA	1	x		estimated time of arrival	Ankunftszeit
XTE	1	x		cross track error	Kursabweichung [m]
ETE	2	x		estimated time of elapsed	Zeit bis Ankunft
AWS	2	x		apparent wind speed	Scheinbare Windgescheindigkeit
AWA	2	x		apparent wind angle	Scheinbare Windrichtung
VMG	2	x		velocity made good	Geschwindigkeit zum Ziel
SAT	3	x
LOG	3	x		status of NMEA-logging	Betriebszustand des NMEA-Loggers	ein / aus / ...
HDOP	4	x		horizontal dilution of precision
TWS	4	x		true wind speed	Windgeschwindigkeit wahr
TWA	4	x		true wind angle	Windrichtung wahr
	4		x	course to next waypoint	Kurs bis nächster WP
	4		x	distance to next waypoint	Distanz bis nächster WP
	4		x	time to next waypoint	Zeit bis nächster WP

Ship position

Ship-cursor

A ship-cursor shows the position in the center of the chart.
When the ship is not in motion, the cursor switch to a standard-cursor (or to another colour).
Ship-cursor directed to the course.
Dashed line marks the stearing yourse (optional switch off/on).

Cursor

Rubberband-Cursor

Rubber band cursor from ship position
with crosshair-cursor
display of course and distance from ship position to cursor,
and coordinate of cursor (copy of coordinate to clipboard).

Measuring tool

1. set a starting point
2. move the crosshair-cursor (works like rubberband-cursor)
setting a target point keeps the line on the chart

Menu

Menu button on bottom at left side corner
Context sensitive menu on left side
Context sensitive menu on bottom

Navigation

• Splitscreen with chart and Navi-data
• Search
• Rubber band cursor with cursor context menu

Goto

• Goto Cursor (virual Waypoint)
• Goto Waypoint (from list)
• use Route

Waypoints

• set and name Waypoints
• edit Waypoints
• delete Waypoints

Route

• set and name Routes
• add Waypoints to Routes
• set and name Waypoints
• edit Routes
• delete Routes

Settings

• Units

dd,ddd° | dd°mm,m'

nm | km

UTC | local time

• Path

for Maps

for NMEA-Logfiles

for Waypoints and Routes

• Logger

on | off

start new file

• Display

Navigation (which data to display)

Chart (North-up | Head-up)

Layers (AIS, Radar, Fish-Finder, etc)