Date   

Re: Using OpenCPN

johnacord
 

The Tides & Currents that came with are good but missing a fair number of stations.  Noticeably behind Whidbey Is. and South Sound.  Are there better ones?

John


Re: Coot Clubhouse?

Brandon
 

We used to see it a lot off Maui during whale season. I remember lots of rust streaks. We would have to recruit some youngsters to chip and paint.

Brandon 
Oceanus, 1971 Columbia 43
Anchored off McMickin Island 




Re: Using OpenCPN

johnacord
 

Thanks Guys.  All that works on my Samsung tablet as described.  Perhaps I'm a bit dense, should have recognized what the "eye" was for......

I have also used multiple chart collections into directories and select the one I want, as Bob described.  I wanted to try some Vector charts .

John A.


Re: Using OpenCPN

Bob Larkin
 

Just learned something:  For the tablet version, if you hold down on the chart tab, at the bottom, it shows the chart data, and highlights the chart area in red tint.  This seems to work well!  I still would not want too many charts in the directory. 

Be careful to let one data box go away before holding down a second.  I managed to get three open at once and no way to get rid of them.

Bob


Re: September Messabout?

Richard Green
 

How many days for that trip?  Or how many miles?  I once set off from the 42 ave boat ramp by the airport to Astoria in an El Toro.  Sailed all day to Sauvie Island…in the rain… and dry bags failed, my Icom shorted out and I was bailing the whole time.  Oh well.  Called a friend to pick up myself and boat.  Never tried it again.

Rich G

On Aug 27, 2021, at 10:02 PM, Dan <danashore@...> wrote:

“Downstream from Portland, in September” has a nice ring to it, doncha’thimk?


Re: Using OpenCPN

Bob Larkin
 

Good Morning All - John W, as Mark N described works for me with Route visibility.  This was with Linux, OpenCPN 5.4.2, but I think it works on the tablet.

John K - The Play Store on Android has the Dave Register app "OpenCPN User Manual."  It does not seem to have been customized for Android Tablets, but does have information that applies.

Different topic of chart selection.  On the laptop, the chart tabs at the bottom show full chart descriptions when you mouse-over a tab.  This makes chart selection easy and I run without quilting to have control over what I see.  But, on the tablet, there is no mouse-over .  The only way I have been able to use this is to put small collections of charts into directories (quite a few directories).  Then Tools/Charts allows the proper directory to be found and a chart rebuild is easily done.  For instance, for the Yaquina R. and Newport, I have a directory with 18003, 18581-1 and -2 plus John K's topo maps for the upper river, -3 and -4.  The 18003 prevents blank areas outside the detailed charts so you know where you are.  This makes 5 tabs show at the most.  If you choose to do quilting, this usually gives the result you want.  Q: Does anyone have a better way?  The goal is to not spend time, on the water, hunting for the right chart.


Re: o-charts for OpenCPN

johnacord
 

Good points John.   What was the predicted tide level at that time?  What was the river flow rate?  I don't know how river flow affects the tidal bulge in that area of the river, but that must come into it as well.  With any of these conditions the depth at that time at that place would be different than the charted depths.

I agree with you that contour lines are not reliable for piloting.  They are an approximation drawn between measured depth points.  I don't pay much attention to contour lines and focus on charted depths.  I trust my depth sounder more than anything else and it is the prominent device at my "nav station" right along side of my charts (paper AND electronic).

Going back to charts.  Whether Mark was using his Navionics or Goverment charts,  neither was a close representation of actual conditions.  But the (? updared?) Navionics chart appears to be consistent with the conditions Mark experienced.  Perhaps they do have access to better data.  Can depth data be measured now with Satellites ??

Outside of harbors and rivers and river deltas the charted depths don't change  much over time.  As well, most depth surveys are not updated often, and more so these days with raster charts.  So there may be a real advantage to Vector charts in that respect.  I prefer the land data and visual feel of Raster charts but with the demise of updates Vector charts become appealing.  I am looking forward to the US Vector chart enhancements in progress.  

John A.


Wooden Boat Featival Cancelled

 

The Port Townsend Wooden Boat Festival has been cancelled due to numbskulls who won't get vaccinated, or even wear masks:

https://woodenboat.org/

Now I'll go slap myself with a Big fish...

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John <jkohnen@boat-links.com>
Only ignorance! Only ignorance! How can you talk about only ignorance? Don't you know that it is the worst thing in the world, next to wickedness? (Anna Sewell)

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Re: Using OpenCPN

 

What mark said, on my PC. Works the same in OpenCPN Android 5.x.

On 8/27/2021 3:51 PM, Mark N wrote:
...
I used the "create route" tool on the drop down bar to make two short routes near Newport.  When I go to the "Tools" --> "Route  & Mark Manager" at the top menu bar, under "Routes" it shows my two routes.  I click on the "eyeball" on the left and it changes to an X-ed out eyeball and the route is no longer seen on the map.  Is that what you wanted to do?
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I love sleep. My life has the tendency to fall apart when I'm awake, you know? (Ernest Hemingway)
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Re: Coot Clubhouse?

 

Probably expensive to run, but I suppose we could just take her up to Toledo and tie her up at the long-term moorage dock. <g>

On 8/27/2021 8:51 PM, Josh wrote:
Nice!
...
The NOAA research vessel Hi'ialakai was decommissioned last December.
I'll bet it could be had for a bargain price. <g> Launched in 1984 (may
be the newest vessel ever proposed for a Coot Clubhouse) as a US Navy
spy ship:
https://en.wikipedia.org/wiki/USNS_Vindicator_(T-AGOS-3)
<https://en.wikipedia.org/wiki/USNS_Vindicator_(T-AGOS-3)>
Currently located in Newport.
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I come from a people who gave the Ten Commandments to the world. Time has come to strengthen them by three additional ones, which we ought to adopt and commit ourselves to: thou shall not be a perpetrator; thou shall not be a victim; and thou shall never, but never, be a bystander. (Yehuda Bauer)
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Re: o-charts for OpenCPN

 

I've attached a screenshot of the North Portland Channel in Navionics with Sonar charts turned on and set to the most detail, also a shot of the NOAA raster chart. Lots more detail in Navionics, but where does it come from?

What was the water level when you were there, Mark? NOAA gives depths at "mean low low water", but at low tide and a drought stricken river...

“'MLLW' means the 0.0 tidal elevation. It is determined by averaging each day's lowest tide at a particular location over a period of 19 years. It is the tidal datum for vertical tidal references in the salt water area."

On 8/27/2021 4:25 PM, Mark N wrote:
Just use your depth sounder when in shallow water and don't trust
Navionics' depth contour lines.
Just happened a week ago:
Attached are two images I spit out of sas.planet showing my track on a satellite image and on the navionics image. We are in the North Portland Channel on the south side of Hayden Island and the current is heading to the northwest.
If you zoom in on the navionics, you will see we were in 14-16 feet of water and we were well aware of the 2-4 foot area ahead.  We were about to head to the north to view the nice floating homes and boats along there.  I've done this many times before.
Luckily, we were in the no wake zone and my buddy, who was piloting, was watching the depth gauge because he didn't want to hurt my boat.  He commented on the depth just before the depth sounder squealed its head off at three foot deep and scared the sh#t outa me.  What's it talking about?  We finally nursed her around and got the hell out of there.
After getting home, I dropped the gps track on my sas.planet imagery and, lo and behold, we have new bottom features!  I doubt we will see NOAA or navionics update this area.
...
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John <jkohnen@boat-links.com>
My toast would be, may our country always be successful, but whether successful or otherwise, always right. (John Quincy Adams)
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Re: September Messabout?

Dan
 

“Downstream from Portland, in September” has a nice ring to it, doncha’thimk?


Re: Coots and the Toledo Boat Show

David Graybeal
 

I can't think of any downside.


Re: o-charts for OpenCPN

johnacord
 

Mark,

Here's a screenshot from my Navionics.  I reinstalled yesterday so presume I have the latest charts.

Interestingly I think I can see similar shoaling in the satellite image.

Don't know why the image is so big;  resized it fairly small. 

John








Re: Coot Clubhouse?

Josh
 

Nice!


On Fri, Aug 27, 2021, 3:06 PM John Kohnen <jkohnen@...> wrote:
The NOAA research vessel Hi'ialakai was decommissioned last December.
I'll bet it could be had for a bargain price. <g> Launched in 1984 (may
be the newest vessel ever proposed for a Coot Clubhouse) as a US Navy
spy ship:

https://en.wikipedia.org/wiki/USNS_Vindicator_(T-AGOS-3)

Currently located in Newport.

--
John <jkohnen@...>
The problem in our country isn't with books being banned, but with
people no longer reading. ... You don't have to burn books to destroy a
culture. Just get people to stop reading them. (Ray Bradbury)



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Re: o-charts for OpenCPN

Mark Neuhaus
 


On Fri, Aug 27, 2021 at 3:24 PM John Kohnen <jkohnen@...> wrote:

Just use your depth sounder when in shallow water and don't trust
Navionics' depth contour lines.

Just happened a week ago:

Attached are two images I spit out of sas.planet showing my track on a satellite image and on the navionics image. We are in the North Portland Channel on the south side of Hayden Island and the current is heading to the northwest. 

If you zoom in on the navionics, you will see we were in 14-16 feet of water and we were well aware of the 2-4 foot area ahead.  We were about to head to the north to view the nice floating homes and boats along there.  I've done this many times before.

Luckily, we were in the no wake zone and my buddy, who was piloting, was watching the depth gauge because he didn't want to hurt my boat.  He commented on the depth just before the depth sounder squealed its head off at three foot deep and scared the sh#t outa me.  What's it talking about?  We finally nursed her around and got the hell out of there.  

After getting home, I dropped the gps track on my sas.planet imagery and, lo and behold, we have new bottom features!  I doubt we will see NOAA or navionics update this area.

 The funny part of this is that I actually had sas.planet on a netbook aboard my boat hooked up to a handheld garmin gps receiver, tracking us, but I had it set to the navionics image.  Maybe next time I will have the google map images showing, as they would have been much more useful.

Live and learn...... 


Re: Using OpenCPN

Mark Neuhaus
 

Hi John,

On Fri, Aug 27, 2021 at 10:32 AM johnacord <jcacord@...> wrote:

Created a second route which at some points overlaps the first one and saved it.   Both routes are displayed. Now I want to hide one of them  Why?  Different current conditions.  I cannot, either by trying things or consulting the user manual how to hide/show a route.  I do not want to delete either of them. 
 
Same version on winXP for me.

I used the "create route" tool on the drop down bar to make two short routes near Newport.  When I go to the "Tools" --> "Route  & Mark Manager" at the top menu bar, under "Routes" it shows my two routes.  I click on the "eyeball" on the left and it changes to an X-ed out eyeball and the route is no longer seen on the map.  Is that what you wanted to do?

Mark


Re: Coots and the Toledo Boat Show

 

Thanks for your enthusiastic support for the Coots TSCA chapter cosponsoring the Toledo Wooden Boat Show. Do any of you think this is a Bad Idea? Other than having our name on the posters, we won't _have to_ do anything more than we already do, but it would be an opportunity to increase our presence, perhaps by having a booth, and maybe some of us could help the Port out more.

On 8/27/2021 7:17 AM, Dan in Almostcanada wrote:
With a hearty here-here!, and a Zipadeedoodah!! We need Toledo, Toledo
needs us...an opportunity for a group with "no organization" to help
organize something. Full speed ahead, damn the torpedoes, I say. dan.
--
John <jkohnen@boat-links.com>
The problem with some people is that when they aren’t drunk, they’re sober. (William Butler Yeats)
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Re: Using OpenCPN

 

I hope Bob is reading this...

I'll try it out on OpenCPN Android and see what happens.

BTW, is there a manual ANYWHERE for OpenCPN 5.x for Android?

On 8/27/2021 10:32 AM, john a wrote:
Hello all.  Learning here about how to use OpenCPN.  For reference, Ver.5.2.4 on Windows 7.  (Also have OpenCPN on an Android tablet)
Have created a route, learned how to edit, save, name it, activate and deactivate.  All this using the users manual.
Created a second route which at some points overlaps the first one and saved it.   Both routes are displayed. Now I want to hide one of them Why?  Different current conditions.  I cannot, either by trying things or consulting the user manual how to hide/show a route.  I do not want to delete either of them.
Any advice from you savvy users?  Would also want to know if this is possible with OpenCPN on a tablet.
--
John <jkohnen@boat-links.com>
Eccentricity has always abounded when and where strength of character has abounded; and the amount of eccentricity in a society has generally been proportional to the amount of genius, mental vigor, and moral courage which it contained. (John Stuart Mill)
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Re: o-charts for OpenCPN

 

The Navionics depths for inland waters are particularly suspect, because we don't know the source of the soundings, and the precise contour lines could lead one to mistake precision of display for accuracy. In areas charted by NOAA the depth data Navionics uses are as good as any we can easily get, but the precise contour lines Navionics displays in Sonar charts imply more accuracy than is likely there.

Just use your depth sounder when in shallow water and don't trust Navionics' depth contour lines. Don't trust NOAA's soundings either, for that matter. <g> But at least they don't pretend to be as precise as the Navionics contours...

On 8/27/2021 11:54 AM, john a wrote:
So we are talking here about depth contour lines on Navionics Sonar Charts only, and more specifically for inland waters?
Keep in mind that silting and infrequency of updating soundings is significant for these waters.
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John <jkohnen@boat-links.com>
If Heaven had looked upon riches to be a valuable thing, it would not have given them to such a scoundrel. (Jonathan Swift)
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