Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-04-2013, 12:34   #1
Registered User

Join Date: May 2012
Posts: 407
Visit My Harbour Charts and Tidal Currents

For users of OpenCPN, using Visit My Harbour UK/Ireland charts and tidal stream atlases, who are trying the VMH Tidal Streams plugin; I have attached an updated version, which uses OpenCPN tidal data to link tide times to the tidal current chart.

Rename the plugin file 'EUTidalcurrents_pi.dll' already on your computer if you want a fall-back option.

Download the new plugin from my website (Right click on 'Here', Save Link As - choosing your OpenCPN plugins folder).

You need 'libexpat.dll' in your main OpenCPN folder (From the VMH disk/stick or the link below).

When the plugin is running click the '+' button and choose the main VMH 'TIDAL STREAM ATLASES' folder on your disk/stick. Select the NP you want to use and press 'HW' etc. You can change the start date and the next tidal current pages will reflect that new date.

www.mikerossiter.co.uk/OpenCPN/OpenCPNFiles.html

Please try and break the plugin. It's the only way to make it better!

Mike
__________________

__________________
Rasbats is offline   Reply With Quote
Old 12-04-2013, 06:59   #2
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 9,369
Re: Visit My Harbour Charts and Tidal Currents

Quote:
"For users of OpenCPN, using Visit My Harbour UK/Ireland charts and tidal stream atlases, who are trying the VMH Tidal Streams plugin; I have attached an updated version, which uses OpenCPN tidal data to link tide times to the tidal current chart."
It would be helpful if you would explain more completely if there are any prerequisites for this and where they are located.

Where is the VMH Tidal Plugin, I haven't heard of it?
__________________

__________________
rgleason is offline   Reply With Quote
Old 12-04-2013, 09:00   #3
Registered User

Join Date: May 2012
Posts: 407
Re: Visit My Harbour Charts and Tidal Currents

Sorry, this is the EUTidalCurrents plugin mentioned some time ago on this forum.

At that time it relied on users making up a folder of KMZ files to show tidal stream data. I made an example from public sources.

Previous thread: Tidal Current plugin for European Waters Again

Working with 'Visit My Harbour' KMZ files have been produced from 20 UKHO Tidal Stream Atlases. Obviously these publications are copyright. Users who purchase a DVD or USB Stick of VMH UK/Ireland charts and install OpenCPN (also on the media) have a protected folder called 'TIDAL STREAM ATLASES' on the media. For copyright purposes the DVD/USB Stick can be moved to another machine but the data cannot be copied. The media needs to be attached to the computer running OpenCPN.

Reference:
2013 ChartStick- UK charts for OpenCPN and PolarNavy (NEW) : by VisitMyHarbour [Charts for OpenCPN and Polar Navy] - VisitMyHarbour articles

More information, including coverage, is shown at the bottom of the page.

The EUTidalCurrents plugin on the media and this updated version allows the user to select a folder corresponding to a UKHO Tidal Stream Atlas and view the tidal currents for each hour before/after HW at the base port. The tidal current information is raster as are the VMH charts.

The plugin needs OpenCPN V3.0.0 or better to run and 'libexpat.dll' in the main OpenCPN folder.

The updated plugin now uses tidal calculations based on Dave's code. This allows the user to select a date and the HW times are calculated for the base port for the Tidal Stream Atlas in use (not always Dover!).

The plugin coding relies heavily on SethDarts 'KMLOverlay' plugin.

My code needs a lot of cleaning but could be put on github later if there is enough interest.

Mike
__________________
Rasbats is offline   Reply With Quote
Old 12-04-2013, 09:07   #4
Registered User

Join Date: May 2012
Posts: 407
Re: Visit My Harbour Charts and Tidal Currents

Rick,

The same as the KMLOverlay plugin, the EUTidalCurrents plugin is only for Windows.

I am running Win XP SP3 and coding with VS2010 express and wxWidgets 2.8.12.

Mike
__________________
Rasbats is offline   Reply With Quote
Old 12-04-2013, 09:48   #5
Registered User

Join Date: Dec 2005
Location: WNA
Boat: Dufour 35
Posts: 3,247
Re: Visit My Harbour Charts and Tidal Currents

The KML plugin works just fine on Linux. Are here any other issues,preventing the EUTidalCurrents plugin, to run on Linux?
Thomas
__________________
cagney is offline   Reply With Quote
Old 12-04-2013, 11:05   #6
Registered User

Join Date: May 2012
Posts: 407
Re: Visit My Harbour Charts and Tidal Currents

Thomas,

Thanks. I'll have a look.

Mike
__________________
Rasbats is offline   Reply With Quote
Old 14-04-2013, 08:01   #7
Registered User

Join Date: May 2012
Posts: 407
Re: Visit My Harbour Charts and Tidal Currents

Progress!

On Debian Squeeze I compiled the KMLOverlay plugin and also the derived EUTidalCurrents plugin.

The plugins are attached, and also TS Demo, a folder of KMZ tidal streams for the English Channel (Western Part). Remove the .pdf extensions and unzip the files. The files from TS Demo 1 and 2 need to be placed in one folder, which is selected when the EUTidalCurrents plugin is run.

The demo tidal streams are from public sources. Next step is to work out how UKHO tidal stream atlases can be supplied in a suitable licensed format for Linux users!

Compiled alongside OpenCPN 3.2.0. Not tested with earlier versions.

Mike
Attached Files
File Type: pdf TS Demo 1.7z.pdf (429.4 KB, 56 views)
File Type: pdf TS Demo 2.7z.pdf (298.2 KB, 42 views)
File Type: pdf libEUTidalCurrents_pi.so.7z.pdf (218.2 KB, 45 views)
File Type: pdf libkmloverlay_pi.so.7z.pdf (206.4 KB, 41 views)
__________________
Rasbats is offline   Reply With Quote
Old 14-04-2013, 16:53   #8
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 9,369
Re: Visit My Harbour Charts and Tidal Currents

Interesting development, can we use the tides even though we may not have purchased the charts?
__________________
rgleason is offline   Reply With Quote
Old 15-04-2013, 05:18   #9
Registered User

Join Date: May 2012
Posts: 407
Re: Visit My Harbour Charts and Tidal Currents

Problem is that DRM on the Visit My Harbour DVD is Windows only. Even using Wine I have not been able to unlock the media to use with OpenCPN. On Windows the tidal current data can be used standalone with any charts.

If anyone knows about a DRM program for DVD/USB Stick compatible with Linux then it might be possible to move forward.

Mike
__________________
Rasbats is offline   Reply With Quote
Old 19-04-2013, 08:30   #10
Registered User

Join Date: Mar 2013
Posts: 1
Re: Visit My Harbour Charts and Tidal Currents

Mike, thanks for the great work.
Feedback: I recently installed OpenCPN on my Windows 8 laptop, 64 Bit, 8GB Ram, i5 processor and installed your tide plug-in from the visit my harbour chartstick. After playing with the chart stick version I upgraded it to your latest download.
The original chartstick version ran reasonably well. Norton removed your update on initial download, after I forced a download your updated version has a lot of good new features but proved unstable and was slow to use even though the laptop is reasonable well specified. On a couple of occasions I got 100% processor usage error messages.
I hope this feedback is helpful. This plug in has a lot of potential, thank you for sharing your endeavours.

John
__________________
Silvermorning is offline   Reply With Quote
Old 24-04-2013, 07:52   #11
Registered User

Join Date: May 2012
Posts: 407
Re: Visit My Harbour Charts and Tidal Currents

John,

'Visit My Harbour' is supplying OpenCPN V3.0 on their media.

If you have not already done so, it may be useful to upgrade to the latest stable version 3.2 and see if this resolves the performance issues of the plugin. Look and feel will change but there are plenty of enhancements. The updated Tidal Currents plugin has been compiled alongside V3.2 OpenCPN.

If you go down this route please let me know if you see any changes.

Mike
__________________
Rasbats is offline   Reply With Quote
Old 14-09-2013, 12:50   #12
Registered User

Join Date: May 2012
Posts: 407
Re: Visit My Harbour Charts and Tidal Currents

I am now running OpenCPN 3.3.814 with the Tidal Current plugin.

This latest version seems to render to pages of the tidal atlas faster.

User comments are always welcome.

Mike
__________________

__________________
Rasbats is offline   Reply With Quote
Reply

Tags
charts

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:22.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.