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P_Dub · 28-01-2015, 15:48

Did anyone has ever thought of creating a part or plugin for producing an Estimated time to destination or best time of departing a place or crossing an area?
Regards

petter5 · 28-01-2015, 16:32

Estimated time to destination ( ETA) is already implemenyed. -> create a route to your destination and activate it, and you will see ETA in the route box on the display.

P_Dub · 28-01-2015, 17:43

Does it take the current into consideration?
Bye

bcn · 28-01-2015, 23:11

Quote:

Originally Posted by marinux

I have no found occurences about this trouble:
Display raster charts with V4.0 is very bad - unusable.

Bon vent, belle mer

Frank,

did you take into account that raster charts are pre-processed when used the first time under 4.0?
Depending on the number of charts and the machine used this can take a lot of time and OpenCPN seems not to respond.

Hubert

PjotrC · 29-01-2015, 00:40

Quote:

Originally Posted by P_Dub

Did anyone has ever thought of creating a part or plugin for producing an Estimated time to destination or best time of departing a place or crossing an area?

Maybe not the right thread, so just a short answer:

Yes, I did, and I am using it daily... http://www.cruisersforum.com/forums/...ning+with+grib

NahanniV · 29-01-2015, 05:29

Is there a way to move chart cache and other OpenCPN data to another location (SSD) ?

Thanks,
JM.

nohal · 29-01-2015, 05:50

JM...
I suppose you are still on Linux...

Code:

mv ~/.opencpn/raster_texture_cache /wherever
ln -s /wherever/raster_texture_cache ~/.opencpn/raster_texture_cache

Pavel

P_Dub · 29-01-2015, 06:06

Quote:

Originally Posted by PjotrC

Maybe not the right thread, so just a short answer:

Yes, I did, and I am using it daily... http://www.cruisersforum.com/forums/...ning+with+grib

What I meant is one like the nobeltec programm, using current and tide, when available. With this you can have a much better approach, specially for craft of low speed.
See the attach picture.
Regards

seandepagnier · 29-01-2015, 06:32

Quote:

Originally Posted by NahanniV

Is there a way to move chart cache and other OpenCPN data to another location (SSD) ?

Thanks,
JM.

Keep in mind, different machines may use incompatible caches as the compressed format can be one of 3 possible.

Quote:

Originally Posted by bcn

Frank,

did you take into account that raster charts are pre-processed when used the first time under 4.0?
Depending on the number of charts and the machine used this can take a lot of time and OpenCPN seems not to respond.

Hubert

I didn't think the cache was enabled by default.

Quote:

Originally Posted by P_Dub

Does it take the current into consideration?

What I meant is one like the nobeltec programm, using current and tide, when available. With this you can have a much better approach, specially for craft of low speed.

Try the weather routing plugin.

P_Dub · 29-01-2015, 07:26

Try the weather routing plugin.[/QUOTE]

Well it is good up to a certain point, but not quite what it is or should be rquired. You must have something that will take into account the current, when the arrows predictions are available in tidal rivers mainly. We are working on that at the moment, but only for a given place in particular.
Regards

rgleason · 29-01-2015, 08:17

P Dub re weather_routing

Quote:

You must have something that will take into account the current, when the arrows predictions are available in tidal rivers mainly. We are working on that at the moment, but only for a given place in particular.

Weather_routing uses current from Climatology which are known large scale currents, such as Gulf Stream, however it does not use Tidal currents. I am unaware of such a development, but have suggested that tidal current could possibly be transformed to a grib format which might make it easier to include in the tidal current calculations. I am sure Sean would welcome any patch of such nature and review and improve it.

marinux · 30-01-2015, 11:51

Bonsoir,

Here are the same charts on 3.3.2 and 4.0.0, same PC, same OS...

Other: I have put a link to this chart:

http://download.tuxfamily.org/xinuto...O_PARNAIBA.KAP

It come from Official Brasil Hydrographic service (free download). You can download (small, 1.5Mo) and try it. For me, it appear only with 3.x version. No detected with 4.x (user config unchanged).

nohal · 30-01-2015, 13:29

Quote:

Originally Posted by marinux

Bonsoir,

Here are the same charts on 3.3.2 and 4.0.0, same PC, same OS...

Other: I have put a link to this chart:

http://download.tuxfamily.org/xinuto...O_PARNAIBA.KAP

It come from Official Brasil Hydrographic service (free download). You can download (small, 1.5Mo) and try it. For me, it appear only with 3.x version. No detected with 4.x (user config unchanged).

Frank...
The problem with the Brasilian KAP is obvious, the datum is empty:

Code:

KNP/SC=1159563,GD=,PR=Mercator,PP=0.000000,PI=0.000000,SK=0.000000,TA=90.000000

It is a bug in OpenCPN 4.0 - refer to FS#1683 : Forgotten GD case

Are you sure the other charts showing the distortion are Brazilian? Which ones and from where can I download them? Seem missing from my very recent set of their charts...

Thanks

Pavel