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
BRG	1	x		bearing	Peilung zum Ziel
HDG	1	x		heading	Steuerkurs
COG	1	x		course over ground	Kurs über Grund
SOG	1	x		speed over ground	Geschwindigkeit über Grund
STW	1	x		speed through water	Geschwindigkeit durch Wasser
DBS	1	x		depth below surface	Tiefe unter Wasserspiegel	alternative DBT, DBK, DEPTH
ETA	1	x		estimated time of arrival	Ankunftszeit	s.a. ETE
XTE	1	x		cross track error	Kursabweichung [m]
VMG	1	x		velocity made good	Geschwindigkeit zum Ziel
ETE	2	x		estimated time of elapsed	Zeit bis Ankunft (Reisezeit)	s.a. ETA
AWS	2	x		apparent wind speed	Scheinbare Windgescheindigkeit
AWA	2	x		apparent wind angle	Scheinbare Windrichtung
TWS	3	x		true wind speed	Windgeschwindigkeit wahr
TWA	3	x		true wind angle	Windrichtung wahr
SAT	3	x		satellites in view	sichtbare Satelliten
LOG	3	x		status of NMEA-logging	Betriebszustand des NMEA-Loggers	ein / aus / ...
HDOP	4	x		horizontal dilution of precision	horizontale GPS-Genauigkeit
WPT BRG	4		x	course to next waypoint	Kurs bis nächster WP
DTW	4		x	distance to next waypoint	Distanz bis nächster WP
TTW	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

Navi data

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)