Open CPN for Android

PaulRainbow said:
But you aren't using VMH charts Richard, they will only work on Android with the Marine Navigator app.
Click to expand...

But that's not the question I answered.

I answered "I didn't think the Android OpenCpn could read the Windows Opencpn Charts". I'm using the CM93 charts that I use on Windows OpenCPN on Android OpenCPN.

Apollo refers to charts "like the ones from VisitMyHarbour" but he doesn't appear to be referring exclusively to VMH.

Richard
 
Richard

Where did you get these charts from?

If i can get charts for Windows and then use on Android that would work..

Mike
 
apollo said:
Richard

Where did you get these charts from?

If i can get charts for Windows and then use on Android that would work..

Mike
Click to expand...

VMH charts will work on Android using the Marine Navigator app.

The free OpenCPN app is very slow on my tablet. Screen redraw and zoom is pitiful.

CM93 are kicking around the internet, Google should find them. They are about 5 years old though.
 
apollo said:
Richard

Where did you get these charts from?

If i can get charts for Windows and then use on Android that would work..

Mike
Click to expand...

It's not strictly legit but if you search for CM93 download you should find a source. I just checked my last source but they have gone from there now. The download is over 1 GB so you need a good connection.

The latest global version available for download is from 2012 I believe, even if the filename suggests a newer version, so they are somewhat out of date. However, I only use then for a chart background on OpenCPN when doing a bit of route planning at home or using the AIS display function of OpenCPN which is very good.

PM me if you can't find the charts online and I'll see if I can sort something out for you.

Richard
 
Last edited:
apollo said:
Yeah i have that working but Marine Navigator doesn't do AIS which is why i wanted to use OpenCPN
Click to expand...

I installed OpenCPN for that reason. I wouldn't want to rely on the CM93 charts for primary navigation though. Again, OpenCPN is very slow on my tablet, i'm not sure if the paid version is any better.
 
If you're using CM93 and have limited active storage it's worth noting that you can edit the 1.3 Gb down considerably by working out the chart pattern for your likely cruising area.For instance UK,Ireland and the continent between the Baltic and Spain reduces to circa 260 Mb.
 
Some old info I have re the way that the chart numbers correspond to areas:

CMAP/2 regions (They should be the same for CMAP4)


1. Coasts of Western Europe.
2. Mediterranean Sea.
3. Coasts of Western and Southern Africa.
4. Arctic coasts of Europe and Asia, Sea of Okhostsk and Kamchatka.
5. Western Indian Ocean, Suez Channel, Red Sea, Persian Gulf, Arabian Sea,
India and Sri Lanka.
6. Coasts of China, Korea and Japan.
7. Indonesia, Australia, New Guinea, New Zealand and Oceania.
8. Coasts of North and Central America, Gulf of Mexico and Caribbean Sea.
9. South American coast.


How to figure out what a directory or file represents?
Easy. Notice that the primary folders are numerical like this 03900900.
To understand what content is in the folder we must break it down into two sections.


The first 3 numbers represent Latitude:


003=80S-60S 009=60S-40S 015=40S-20S 021=20S-Equator 027=Equator-20N
033=20N-40N 039=40N-60N 045=60N-80N


The last four digits represent longitude. Read from left to right.


0000=0E 0060=20E 0120=40E 0180=60E 0240=80E
0300=100E 0360=120E 0420=140E 0480=160E 0540=180E or W
0600=160W 0660=140W 0720=120W 0780=100W 0840=80W
0900=60W 0960=40W 1020=20W


Within each of the primary folders are other folders represented by a letter.
Here's what they contain


A, World scale ranging from 1: 3,500,000 to 1: 1,500,000
B, General nautical scale ranging from 1: 1,500,000 to 1: 500,000
C, Coastal scale ranging from 1: 500,000 to 1: 150,000
D, Intermediate coastal / approach scale ranging from 1: 150,000 to 1: 50,000
E, Approach scale ranging from 1: 50,000 to 1: 15,000
F, Harbour scale ranging from 1: 15,000 to 1: 5,000
G, Plan scale, larger than 1: 5,000
 
Can you get any UK charts for OpenCPN on Android other than the old CM93s?
Does anyone do an Android compatible version of UKHO raster charts for OpenCPN? The VMH one still isn't is it?
If you run OpenCPN on a Windows tablet can you use the VMH ones? Does it run OK on a Windows tablet?
Quite confused at the moment!
Thanks for any clarification.
 
Plevier said:
Can you get any UK charts for OpenCPN on Android other than the old CM93s?
Does anyone do an Android compatible version of UKHO raster charts for OpenCPN? The VMH one still isn't is it?
If you run OpenCPN on a Windows tablet can you use the VMH ones? Does it run OK on a Windows tablet?
Quite confused at the moment!
Thanks for any clarification.
Click to expand...

Can't answer all of your questions, but the VMH charts will not work with anything other than Marine Navigator on Android. Bad choice, IMO. It works OK, but doesn't seem to be supported by the author in any meaningful way and doesn't support AIS, among other things.

I also have OpenCPN on my tablet, with out of date charts so not really suitable for navigation. I have the free version and whilst it does AIS, it is horribly slow on my tablet.

I will most likely not renew the VMH charts, as i'd like to see my AIS on the tablet. Not sure what i'll use though.
 
You must log in or register to reply here.

Other threads that may be of interest

M
Android OpenCPN where's the paid for version?
Replies
6
Views
246
Koeketiene
Koeketiene
F
Emtrak AIS transponder configured and working, not showing my position in Navionics unless
Replies
5
Views
286
FairweatherDave
F
TSB240
AIS not displaying CG SAR Helo
Replies
6
Views
233
PaulRainbow
PaulRainbow
Refueler
Navionics Boating gives me river nav coverage .....
Replies
8
Views
268
Refueler
Refueler
B
Help to test new Anchor App on Android
Replies
1
Views
843
Brendan01
B

Share this page

Top