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Board » Technical Support » QTVLM Bug Report

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Posted by
Mark


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2013-04-06 10:01:41
2016-07-05 09:45:58 - QTVLM Bug Report
How do all

Further to discussions in the RTW chat Odyss pointed out that QT had some annoying bars across the screen. I had initially put it down to a shortage of memory on my computer and the bars being nothing but a drawing issue - but on closer inspection it seems to be affecting the routing - screen shot Odyss posted in chat

Version 5.3.7

The problem occurs when using saildocs and Brainaids gribs

Update- Issue is also occurring in 5.3.5
Update - from Kipper All, just tracked down the Qt bug. If the grib grid resolution is 1 degree or greater, the problem occurs. Of the resolution is less than 1 degree, it goes. I've just reprocessed the Brainaid grib down to 0.5

--- Last Edited by Mark at 2016-07-05 10:37:24 ---

Posted by
JB


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2013-03-07 08:54:34
2016-07-05 10:20:41 - Re: QTVLM Bug Report
Same problema here with the same GRIB file!
Sail Fair.
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Posted by
maitai


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2016-02-25 08:15:33
2016-07-05 10:55:10 - Re: QTVLM Bug Report
Hello,
From where is this grib coming from? Is it something generated by SOL somehow?
Posted by
Mark


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2016-07-05 12:49:38 - Re: QTVLM Bug Report
It is the Brainaid grib and the SailDocs gribs :)
Posted by
maitai


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2016-02-25 08:15:33
2016-07-05 13:14:54 - Re: QTVLM Bug Report
The grib displays fine if the standard interpolation is used.

So it's either inherent to the SOL interpolation formula, or it's a problem in our implementation of it.
Posted by
Mark


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2016-07-05 13:25:53 - Re: QTVLM Bug Report
Im not a tachie but Kippers point that making the grib denser (to under 0.5)and the problem being resolved seems to suggest its the way QT is handling less dense files.

The conversion is a process few of us (me included!) can do!!

Thank you for looking at this
Posted by
Bimmer


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2015-02-23 15:38:27
2016-07-05 14:06:31 - Re: QTVLM Bug Report
Kipper has changed the 10:26 grib file into something usefull for QtVlm.
I'll see if I can persuade him to do this to the following updates, until the guys at QT has solved the problem.
They ARE alerted :-)
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Posted by
Mark


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2016-07-05 14:21:38 - Re: QTVLM Bug Report
Thanks Bimm
Posted by
Bimmer


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2016-07-05 14:38:46 - Re: QTVLM Bug Report
Another solution is to change the settings in ADVACED fro SOL to Standard.
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Posted by
Kipper1258


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2015-06-18 22:08:49
2016-07-06 01:09:36 - Re: QTVLM Bug Report
It looks like there is a transposition error. The stripes are displaced down the page by exactly one grid resolution (2.148 degrees).
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