Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rating: Thread Rating: 3 votes, 5.00 average. Display Modes
Old 17-07-2011, 01:28   #256
Registered User

Join Date: Dec 2005
Location: WNA
Boat: Dufour 35
Posts: 3,249
Re: Charts II: NGA - 2700 Charts

Jim

I think Alanpedas perl script is the way to go. I have not used it yet though.
I would just create a tile as you say, and check the final chart. A bit of work in Gimp or photoshop or similar would probably fix it.

For now, just mark the problem cases so we can handle them later.

Thomas
__________________

__________________
cagney is offline   Reply With Quote
Old 17-07-2011, 01:44   #257
Registered User
 
LeaseOnLife's Avatar

Join Date: Apr 2008
Location: out cruising again
Boat: Sailboat
Posts: 1,046
Re: Charts II: NGA - 2700 Charts

Quote:
Originally Posted by cagney View Post
For now, just mark the problem cases so we can handle them later.

Thomas
Not sure whether we should fix (gimp) missing tiles, except the white ones...

Started a list of problem cases:

https://github.com/ngacharts/ngacharts/wiki/Failed-downloads
__________________

__________________
LeaseOnLife is offline   Reply With Quote
Old 18-07-2011, 14:29   #258
Registered User
 
HappySeagull's Avatar

Join Date: Dec 2010
Location: B.C.,Canada
Boat: 29'
Posts: 2,395
Re: Charts II: NGA - 2700 Charts

yikes!just starting but with Python per Leasonlife's help.
I ammend it to:
dezoomify.py -i Chart 29015 -q 100 -o out.jpg

"http://www.charts.noaa.gov/NGAViewer/29015.shtml" being the link from status page.
being my first.It's slooooowww going.I won't be much help in this.No bandwidth.

Netsurfer! EXCELLENT help!per Fireftp.
__________________
HappySeagull is offline   Reply With Quote
Old 18-07-2011, 14:31   #259
Registered User
 
Surveyor's Avatar

Join Date: Mar 2010
Location: Ft. Pierce, FL - Bislig, Philippines - Gladstone QLD
Boat: 1968 Alberg 30 #329
Posts: 451
Re: Charts II: NGA - 2700 Charts

Quote:
Originally Posted by HappySeagull View Post
yikes!just starting but with Python per Leasonlife's help.
I ammend it to:
dezoomify.py -i Chart 29015 -q 100 -o out.jpg

"http://www.charts.noaa.gov/NGAViewer/29015.shtml" being the link from status page.
being my first.It's slooooowww going.I won't be much help in this.No bandwidth.

Netsurfer! EXCELLENT help!per Fireftp.
I was wondering when you were going to jump in! Now, where is Tore?

Happy use Cagney's edited python script found here: Post 214
__________________
Jim - Bahala na!
http://svcookie.blogspot.com/
KK4GGF
Surveyor is offline   Reply With Quote
Old 19-07-2011, 11:16   #260
Registered User
 
Netsurfer's Avatar

Join Date: Jan 2010
Location: Cologne, Germany
Boat: Beneteau Oceanis 331
Posts: 557
Re: Charts II: NGA - 2700 Charts

Hi chart down- and uploaders ...

There were two faulty (named) charts uploaded:
  1. 23055
  2. 51042
Charts with these numbers do not exist. Please let me know the correct numbers of the charts so I may correct - thanks.

Gunther

__________________
Deutschsprachige Community- und Support-Website unter OpenCPN.de
Netsurfer is offline   Reply With Quote
Old 19-07-2011, 11:51   #261
Registered User

Join Date: Dec 2005
Location: WNA
Boat: Dufour 35
Posts: 3,249
Re: Charts II: NGA - 2700 Charts

Gunther

A quick check reveals
23055 -> 24055
51042 -> 52042

Thomas
__________________
cagney is offline   Reply With Quote
Old 19-07-2011, 11:55   #262
Registered User
 
Netsurfer's Avatar

Join Date: Jan 2010
Location: Cologne, Germany
Boat: Beneteau Oceanis 331
Posts: 557
Re: Charts II: NGA - 2700 Charts

Thanks Thomas - fixed!
__________________
Deutschsprachige Community- und Support-Website unter OpenCPN.de
Netsurfer is offline   Reply With Quote
Old 20-07-2011, 14:08   #263
Registered User

Join Date: Mar 2009
Posts: 83
Re: Charts II: NGA - 2700 Charts

Congrats to everyone who is involved in the downloading, reviewing and formating of this extremely valuable chart source and for all of the hard work and effort that has been put into acquiring and converting this resource.

The fact that the charts are freely available and effectively 'open source' is of course an important aspect of the project.

For those of us who do not have the necessary computer skills to get involved but would like to see and use these charts it would be helpful if an explanation of HOW & WHEN & WHERE the finished chart files can be downloaded.
__________________
dougwm10 is offline   Reply With Quote
Old 20-07-2011, 14:44   #264
Registered User

Join Date: Feb 2010
Location: On the go. Not in Prague.
Posts: 4,018
Re: Charts II: NGA - 2700 Charts

doug...
Don't worry, you will get this info when we are ready to publish something...

Pavel
__________________
nohal is offline   Reply With Quote
Old 20-07-2011, 18:19   #265
Registered User
 
Surveyor's Avatar

Join Date: Mar 2010
Location: Ft. Pierce, FL - Bislig, Philippines - Gladstone QLD
Boat: 1968 Alberg 30 #329
Posts: 451
Re: Charts II: NGA - 2700 Charts

I need a new range of numbers to grab!

__________________
Jim - Bahala na!
http://svcookie.blogspot.com/
KK4GGF
Surveyor is offline   Reply With Quote
Old 20-07-2011, 22:04   #266
Registered User
 
LeaseOnLife's Avatar

Join Date: Apr 2008
Location: out cruising again
Boat: Sailboat
Posts: 1,046
Re: Charts II: NGA - 2700 Charts

Jim,

thanks for cleaning up the failed downloads! Keep an eye on these, really appreciated!

https://github.com/ngacharts/ngachar...iled-downloads


Next block:
I see paulr has started with region 4, how about you take the rest: 41000-43300 and >= 44000?


Quote:
Originally Posted by Surveyor View Post
I need a new range of numbers to grab!
__________________
LeaseOnLife is offline   Reply With Quote
Old 20-07-2011, 22:10   #267
Registered User
 
Surveyor's Avatar

Join Date: Mar 2010
Location: Ft. Pierce, FL - Bislig, Philippines - Gladstone QLD
Boat: 1968 Alberg 30 #329
Posts: 451
Ok, I will start on >=44000 tomorrow
__________________
Jim - Bahala na!
http://svcookie.blogspot.com/
KK4GGF
Surveyor is offline   Reply With Quote
Old 20-07-2011, 22:38   #268
Registered User
 
LeaseOnLife's Avatar

Join Date: Apr 2008
Location: out cruising again
Boat: Sailboat
Posts: 1,046
Re: Charts II: NGA - 2700 Charts

Quote:
Originally Posted by dougwm10 View Post

For those of us who do not have the necessary computer skills to get involved but would like to see and use these charts it would be helpful if an explanation of HOW & WHEN & WHERE the finished chart files can be downloaded.
Doug

the next step in the process, calibrating the "simple/rectangular" charts, is where we need help from many users. The goal is to simplify this task and you will be able to help out:

As far as I understand, it will involve downloading the 4 corners of a chart, then entering lat/lon and x/y pixel count for each chart corner, into a webform.

From there, a mainly automated process should create the chart (de-scew, resize, color reduction, kap generation).


So, no hiding behind "necessary computer skills", OK?

Dirk
__________________
LeaseOnLife is offline   Reply With Quote
Old 21-07-2011, 07:41   #269
Registered User

Join Date: May 2011
Boat: 50' catamaran
Posts: 432
Re: Charts II: NGA - 2700 Charts

Quote:
Originally Posted by LeaseOnLife View Post
.... the next step in the process, calibrating the "simple/rectangular" charts, is where we need help from many users. .....
I'm sure many users would like to help but feel frustrated with this thread. There are no step-by-step instructions for non script experts. Barring the people who knows what is going on - for the rest of us, this thread is a confusing mess. Unless somebody is going to take the time to post a detailed step-by-step procedure, you "experts" will have to do all the work by yourselves. Help me to help you is what I say.
__________________
Revelations is offline   Reply With Quote
Old 21-07-2011, 07:58   #270
Registered User

Join Date: Feb 2010
Location: On the go. Not in Prague.
Posts: 4,018
Re: Charts II: NGA - 2700 Charts

Moose...
We are already preparing the recipe in our kitchen, but you guys have to be a bit patient. We have to calibrate 2700 charts, no doubt there will be more than enough work for everybody interested
Right now the bodycount is 2109, so we have to download and stitch about 600 charts to have the raw data for the whole set. Then we have to burn quite a few CPU cycles to transform them to a form anybody will be able to calibrate, finish the needed tools and scripts and write the instructions. All this needs it's time.

Pavel
__________________

__________________
nohal 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 21:18.


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.